48 – Laser Job Positioning and Virtual Arrays (33:34)

The Lightblade Learning Lab with Russ Sadler

The Lightblade Learning Lab is a series of videos that Russ did for Thinklaser Limited based on using the Lightblade 4060 Laser Cutting and Engraving Machine. Thinklasers Lightblade 4060 has a 400 x 600mm bed size and was supplied with a 60W EFR laser tube. In this video, Russ discusses the process of laser job positioning and goes on to explain how Virtual Arrays work.

Laser Job Positioning and How to Set Up A Job
Laser Job Positioning and How to Set Up A Job

Contents

  • Reference points.
  • Checking the table is solid.
  • Modifications to the honeycomb table to remove movement.
  • The origin button.
  • Setting reference edges (must be inside work area or job will fail)
  • RDWorks and the green head position marker square.
  • Current position and the origin button.
  • Absolute co-ordinates.
  • Position references of objects in the drawing.
  • Creating a reference rectangle showing the outline of the table in relation to the drawing.
  • How to create a test graphic.
  • Creating an array, i.e. multiple copies of the graphic in the drawing.
  • Effect of the ‘Independent Output’ feature.
  • Order of scanning and cutting processes.
  • How to scan and cut, scan and cut, etc. using ‘Virtual Arrays’
  • Making a reference square.
  • Issues associated with accuracy of the head when using a reference square.
  • Correcting play in the steel bed.
  • Engraving and cutting an example in Acrylic.
  • The ‘Current’ feature.
  • Use of Isopropyl Alcohol to give the work a shine (provided the Acrylic is not clear).

My thanks go out to Tom at Thinklaser for giving permission to embed these videos on this site. If you are looking for a new laser machine from a quality supplier, then I would suggest you check out their website: www.thinklaser.com.

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www.rdworkslab.com

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Transcript for Laser Job Positioning and Virtual Arrays

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[Music]

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welcome to another light blink learning

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red today we’re going to cover a couple

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of topics that crop up regularly as

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questions one of them is how do I locate

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my work so that it’s always referenced

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to the same position and the second

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question is all about arrays there are

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two types of array in our D works what

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happens called array and the other ones

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called virtual array there is a big

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difference between the two that many

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people don’t actually understand so

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we’ll check on that subject later on

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after we’ve touched on how do I locate

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my work to a reference point now the

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most important part of that last

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sentence was reference point the word

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reference basically means somewhere that

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I can rely on that’s fixed so when we

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start the Machine off and we do a reset

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the Machine goes to its own reference

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point and it sets a zero zero in that

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corner and if I drive the machine to

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there and look on the keyboard it will

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say 0 for X and 0 for Y now I’m just

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going to remove my steel solid table to

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reveal what’s underneath which is a

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fixed slap table the one thing about a

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reference point is it cannot wander

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around so if you grab hold of your table

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and it moves you can’t have a reference

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point as the machine moves around and

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shakes your table could equally well

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move in the opposite direction possibly

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and give the errors so it’s absolutely

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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fundamental that the table is solid you

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will have also be supplied

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with one of these a honeycomb table I

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don’t think you could call that a

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reference to you now I’ve attempted to

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make this into a reference table because

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what I’ve done on each of the corners I

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have removed the screws and I’ve put a

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small stainless steel angle on each

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corner on opposite corners now this

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gives me the opportunity of juggling the

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corners over the solid part of the

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bedroom it is possible to move this and

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trap it underneath these points here so

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that’s the main reason why I put corners

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on the honeycomb bed now because I never

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use this as a reference and I rarely use

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this as a table as you can see after

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nearly two years this table is almost

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clean because I don’t use it a very

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personal opinion this is one of the

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worst things that was ever put onto a

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laser machine if you love this sort of

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table then go ahead and use it but what

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I would advise you to do is this now

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we’ve got the corners on but because

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we’ve still got movement there all right

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now we can get rid of that movement with

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a little bit of brutality we can grab

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hold of these corners and we can bend

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them in very slightly here and here

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so with a little bit of judicious

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bending of those corners I can make this

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now into a basically part solid part of

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the table underneath so that there’s no

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movement on it now although this corner

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here is not zero zero as you can see

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it’s probably something like 50/50 in

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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other words we’ve lost 50 millimetres of

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available work space if I use that

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corner there as a reference I couldn’t

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decide to locate my work there now I

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can’t guarantee that this edge here and

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this edge here are absolutely true and

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square to the axis of the machine in

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fact I can see when I look down the edge

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here that this table is very slightly

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probably out of position use some

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double-sided tape on here

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okay now I’ve got a piece of scrap

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acrylic here which I’m going to peel the

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covering off on I’m using acrylic

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because it’s a nice shiny surface and

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the double-sided tape that I’ve put on

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here will stick well to it

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speed to about

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five or four of three

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and I should be able to get those

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dimensions fairly now

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29.9 a little prick

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30 get

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and this one here in X is 30 as well so

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I’ve got my zero in that corner sector

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30 30 so if I press the origin button

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now

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and I’ll set my power pole power and my

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speed a suitable speed to cut this

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material

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and that will be around about probably

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eight millilitres a second and just make

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sure we’ve got the focus height set

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knife

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[Music]

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hold the post button down

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and press the left arrow

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okay

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now remember I set the origin at 1330

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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it’s going to take me ages to send that

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head back to zero so if I press reset

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what happened is it will go back at a

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comfortable speed and it will set back

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to 30 30 in the origin point

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there we go keyboard says 30 40 so now I

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can do exactly the same thing in the

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wires

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it’s hold the pulse button on

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we’ve never got an absolutely perfectly

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square reference each to work to to put

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our work in and the table is not moving

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so we can guarantee that position 30 30

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is always going to be in that corner

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there now

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I must remind you that every time you

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take this table off it may not go back

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in the same position we’ll carry on

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using this table for the moment as we

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have already set their reference up and

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we go and take a look how we should use

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this for working with in our D works now

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at the moment any job that I put on to

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this drawing has got the head position

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shown with a little green square now

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that head position is defined by coming

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down here and we will find that what

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we’ve got is something called position

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current position and current position

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means that wherever you position the

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head and press the origin button that is

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where the head will start we can come

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down to here and we can change this

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current position to absolute co-ordinate

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and that’s what I would recommend that

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you do because now what I’ve done I’ve

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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changed this so that when the machine

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cuts this job it will cut it from the

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co-ordinate of this head position now

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this starts to get a little bit more

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complicated because at the moment the

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reference position for this object is

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relative to the centre point there and

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let me just explain to you if we go to

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config system setting we should find

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that we’ve got the position for the

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laser head shown which is the Green

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Square and those nine positions for the

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head should not be confused with this

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little box up here beside the padlock

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on that and you’d find another nine

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positions at the moment you’ll see that

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the dot is right in the middle

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now just for convenience I’m going to do

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two things first of all I’m going to

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mark that square and we’re going to

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change its position we’re going to

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change its dimensions to 100 by 100 and

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now I’m going to drive it to position

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and here we got X&Y at the top here to

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position 1 hunt position 50/50 and you

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see where it’s driven to now it’s driven

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to the centre point here at 50/50 now if

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I change

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this here to that position if I now

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check the co-ordinate position of that

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square you’ll see that it now says zero

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zero

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that’s because look I’ve set this corner

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position here which is the position

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reference for the object to zero zero so

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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even if I draw a circle now and I make

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that circle let’s just close the padlock

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and I make that circle 100 millimeters I

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put handles around that I’ve still got

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this Center position shown but if I tell

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that Square to go to positioned zero

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zero it also jumps up into that corner

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because it’s dragged around by its top

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right-hand corner handle that’s where

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the object is now referenced to so it’s

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important that you understand the use of

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this little square here because that’s

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how you need to position your work

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reference to zero zero we’re not going

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to position our work to zero zero we’re

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going to position our circle to actually

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30 30

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now that would cut a circle that just

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touched our reference square now the

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chances are that we don’t want that so

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just for guidance what I would tend to

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do is draw a rectangle on here and set

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this rectangle

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at position 30 30 so now you know

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exactly where your reference square is

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and you can even give it a different

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color put it on a separate layer like

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that and make that a non cutting layer

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is output no so now you’ve got a

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reference there and that defines the

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table area that you can work in and

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where your corner is going to be right

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so if I now want to cut that circle at a

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specific position let’s just say that

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relative to that top right hand corner I

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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want to move it in by 10 and 10 then

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basically I’ve got to remember that my

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corner is 30 30 and the top corner of

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that circle is now going to be 40 and 40

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we’re going to cut it I don’t know

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what’s in material I’m going to be using

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probably something like some I might use

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some plywood okay so we use a small

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piece of plywood and that’s probably

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going to be cutting three millimetre

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plywood probably cut that around about

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15 or maybe 20 millimetres a second and

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blowing yes scanning we’re gonna cut and

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we’re gonna have power 70% okay so

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that’s my circle I’m going to cut that

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circle relative to that corner 10

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millimetres in from the edge of my

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material now I’m also going to put a

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subtext in there I could put a picture

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in there but let’s just put text in and

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we’ll make it some sort of fancy text

241
00:13:01.959 –> 00:13:07.750
should we let’s do something silly like

242
00:13:04.87 –> 00:13:10.490
Bauhaus it doesn’t really matter

243
00:13:07.75 –> 00:13:16.430
100% width

244
00:13:10.49 –> 00:13:19.880
and we’ll have characters that maybe

245
00:13:16.43 –> 00:13:23.690
let’s just see what 10 looks like yeah

246
00:13:19.88 –> 00:13:27.590
that’s okay first of all I’m going to

247
00:13:23.69 –> 00:13:31.400
ungroup all of that lot then I’m going

248
00:13:27.59 –> 00:13:36.320
to group that one group then I’m going

249
00:13:31.4 –> 00:13:41.530
to group this one group then I’m going

250
00:13:36.32 –> 00:13:41.530
to group this one group

251
00:13:43.54 –> 00:13:47.800
the whole lot I’m going to mark the

252
00:13:45.85 –> 00:13:52.830
whole lot and I’m going to specify it to

253
00:13:47.8 –> 00:13:55.500
be sent centralized and vertically and

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00:13:52.83 –> 00:13:59.160
there we go now it’s justified

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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00:13:55.5 –> 00:14:04.660
now put the whole lot back into a group

256
00:13:59.16 –> 00:14:06.490
will change it to a blue layer and I can

257
00:14:04.66 –> 00:14:10.690
position all of that because it’s a

258
00:14:06.49 –> 00:14:13.300
group with that as a second object so if

259
00:14:10.69 –> 00:14:16.330
I hold my shift key down press that as a

260
00:14:13.3 –> 00:14:26.020
second object and then ask it to be

261
00:14:16.33 –> 00:14:28.110
centered that way and this way I’ve now

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00:14:26.02 –> 00:14:31.510
got my text in the middle of my badge

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00:14:28.11 –> 00:14:34.690
let’s call it that and we set the blue

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00:14:31.51 –> 00:14:40.680
layer to be a scan layer and we’ll run

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00:14:34.69 –> 00:14:48.690
that it’s a four hundred his output yes

266
00:14:40.68 –> 00:14:48.690
blowing no processing mode scan

267
00:14:49.889 –> 00:15:00.629
power mmm let’s try about 30% scanning

268
00:14:57.209 –> 00:15:03.749
interval 0.1 doesn’t do now while we’re

269
00:15:00.629 –> 00:15:13.319
looking at this little logo I’m going to

270
00:15:03.749 –> 00:15:18.209
mark it and put it into a group and now

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00:15:13.319 –> 00:15:21.179
I’m going to ask it for an array now I’m

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00:15:18.209 –> 00:15:23.910
going to do an array copy here and if we

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00:15:21.179 –> 00:15:26.100
take a look at this little logo here

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00:15:23.91 –> 00:15:27.929
which I’m clicking at the moment you’ll

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00:15:26.1 –> 00:15:30.119
see that there’s a little black dot in

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the corner now you need to put the

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00:15:30.119 –> 00:15:33.029
little black dot at the top right hand

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00:15:31.799 –> 00:15:34.799
corner which is where you’re going to

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00:15:33.029 –> 00:15:37.139
build your array from because you’re

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00:15:34.799 –> 00:15:39.569
going to build it going left and going

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00:15:37.139 –> 00:15:41.879
downwards exactly as it says here and

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00:15:39.569 –> 00:15:44.790
we’re going to put three on the top line

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00:15:41.879 –> 00:15:48.569
and we’re gonna have spacing of five

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00:15:44.79 –> 00:15:51.689
millimetres between each one and we’re

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00:15:48.569 –> 00:15:56.910
going to put three downwards and again

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00:15:51.689 –> 00:15:59.239
five spacing between them okay and there

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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we go that was nice and simple wasn’t it

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00:15:59.239 –> 00:16:03.540
let’s have a look what happens right

289
00:16:01.559 –> 00:16:06.319
let’s do a simulation we’ll run it as

290
00:16:03.54 –> 00:16:06.319
fast as we can

291
00:16:11.07 –> 00:16:17.550
so it’s building from the bottom upwards

292
00:16:14.449 –> 00:16:20.310
scanning across whole lines and

293
00:16:17.55 –> 00:16:24.810
everything now only when it’s finished

294
00:16:20.31 –> 00:16:27.800
scanning all of the text will it go and

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00:16:24.81 –> 00:16:36.060
cut the badges out and here we go

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00:16:27.8 –> 00:16:39.120
ba-ba-ba-ba-bom 1 2 etc sometimes that’s

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00:16:36.06 –> 00:16:43.649
not very convenient especially if you’ve

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00:16:39.12 –> 00:16:45.690
got a very complex engraving and you

299
00:16:43.649 –> 00:16:48.600
don’t want to run the risk of the

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00:16:45.69 –> 00:16:51.300
engraving shifting relative to the

301
00:16:48.6 –> 00:16:57.000
outside shape and that can happen quite

302
00:16:51.3 –> 00:17:01.319
often for various reasons it would be

303
00:16:57.0 –> 00:17:05.309
very convenient if we could do the text

304
00:17:01.319 –> 00:17:14.280
cut the shape do the text cut the shape

305
00:17:05.309 –> 00:17:17.510
etc so how do we do that I know you say

306
00:17:14.28 –> 00:17:20.510
look we’ve got this feature built into

307
00:17:17.51 –> 00:17:20.510
scanning

308
00:17:22.6 –> 00:17:28.089
independent output let’s try that

309
00:17:30.19 –> 00:17:39.310
no that’s not working is it it’s

310
00:17:32.29 –> 00:17:41.200
probably saving us a lot of time but

311
00:17:39.31 –> 00:17:43.500
it’s still doing all the scanning before

312
00:17:41.2 –> 00:17:45.610
it does the cutting

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00:17:43.5 –> 00:17:48.430
well there are many things that you

314
00:17:45.61 –> 00:17:51.460
could try for example you could put the

315
00:17:48.43 –> 00:17:53.290
text on this one on one layer and then

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00:17:51.46 –> 00:17:55.240
the cutting on another layer this one

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00:17:53.29 –> 00:17:59.380
text on one layer and that one on

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

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00:17:55.24 –> 00:18:02.260
another layer trust me it won’t work it

319
00:17:59.38 –> 00:18:05.160
will always do the scanning before it

320
00:18:02.26 –> 00:18:08.440
does the cutting that’s a golden rule

321
00:18:05.16 –> 00:18:12.850
associated with our D works you cannot

322
00:18:08.44 –> 00:18:16.270
beat that rule okay now if we look under

323
00:18:12.85 –> 00:18:17.830
work we shall also find that we’ve got

324
00:18:16.27 –> 00:18:21.240
one of these funny little symbols down

325
00:18:17.83 –> 00:18:25.450
here first of all we must mark the job

326
00:18:21.24 –> 00:18:27.250
and when we come over here but we had

327
00:18:25.45 –> 00:18:29.680
this little array symbol down here this

328
00:18:27.25 –> 00:18:31.990
little positional thing well we’ve got

329
00:18:29.68 –> 00:18:33.520
exactly the same thing here which makes

330
00:18:31.99 –> 00:18:35.050
you think that well you know it’s the

331
00:18:33.52 –> 00:18:39.670
same doing the same thing in a different

332
00:18:35.05 –> 00:18:41.980
area but it’s not over here it’s called

333
00:18:39.67 –> 00:18:45.280
a virtual array so you need to click on

334
00:18:41.98 –> 00:18:48.160
virtual array and when you clicked on it

335
00:18:45.28 –> 00:18:51.430
you should be able to remove your array

336
00:18:48.16 –> 00:18:54.570
direction to the right corner which is

337
00:18:51.43 –> 00:18:58.210
the top right hand corner for you and

338
00:18:54.57 –> 00:19:03.480
now we can specify in here that we want

339
00:18:58.21 –> 00:19:08.110
for instance 3 in X with a spacing of 5

340
00:19:03.48 –> 00:19:12.850
millimeters between them we need 3 in Y

341
00:19:08.11 –> 00:19:15.760
with a spacing of 5 between them we have

342
00:19:12.85 –> 00:19:20.140
to move to a new box of some sort to get

343
00:19:15.76 –> 00:19:23.260
our spacing ok now you notice everything

344
00:19:20.14 –> 00:19:26.010
is dotted here it’s because it’s a

345
00:19:23.26 –> 00:19:28.810
virtual array it’s not a real array

346
00:19:26.01 –> 00:19:32.190
let’s go and have a look what’s happened

347
00:19:28.81 –> 00:19:32.190
when we go and view it this time

348
00:19:32.69 –> 00:19:39.660
where they all gone they’re not there

349
00:19:35.94 –> 00:19:41.299
now if we click on simulation watch what

350
00:19:39.66 –> 00:19:46.830
happens

351
00:19:41.299 –> 00:19:49.170
text outside shape that’s what’s going

352
00:19:46.83 –> 00:19:50.760
to happen here then it’s going to pitch

353
00:19:49.17 –> 00:19:52.470
across to here and do the same thing

354
00:19:50.76 –> 00:19:56.760
then across to here and do the same

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

355
00:19:52.47 –> 00:20:03.450
thing so now we have got individual scan

356
00:19:56.76 –> 00:20:06.030
cut scan cut scan cut a very useful

357
00:20:03.45 –> 00:20:08.940
feature if you have got hundreds of

358
00:20:06.03 –> 00:20:10.559
these on a big sheet and you want to

359
00:20:08.94 –> 00:20:12.900
start for instance cleaning them or

360
00:20:10.559 –> 00:20:15.030
painting them you might want to stop the

361
00:20:12.9 –> 00:20:17.669
machine and picked four off them out six

362
00:20:15.03 –> 00:20:19.679
of them out and carry on you’ll

363
00:20:17.669 –> 00:20:21.059
obviously need to be careful but of

364
00:20:19.679 –> 00:20:23.520
course you’ve got your corner reference

365
00:20:21.059 –> 00:20:27.090
here so even if you disturbed the job

366
00:20:23.52 –> 00:20:30.570
you can always put the job back plus the

367
00:20:27.09 –> 00:20:33.030
fact that you’re not going to upset the

368
00:20:30.57 –> 00:20:35.760
relative outlines of these positions

369
00:20:33.03 –> 00:20:38.240
because they’re not there they’re not

370
00:20:35.76 –> 00:20:41.340
there until you’ve scanned and cut

371
00:20:38.24 –> 00:20:43.799
scanned and cut so even if you move your

372
00:20:41.34 –> 00:20:47.730
base material it’s not going to be a big

373
00:20:43.799 –> 00:20:51.960
issue to make this a lot more compact

374
00:20:47.73 –> 00:20:56.600
I’m going to reduce this to a scale of

375
00:20:51.96 –> 00:20:56.600
say 50%

376
00:20:57.93 –> 00:21:04.200
bear in mind I’ve got my padlock closed

377
00:21:00.79 –> 00:21:09.280
let’s see what happens

378
00:21:04.2 –> 00:21:11.860
very intelligent isn’t it everything is

379
00:21:09.28 –> 00:21:14.560
changed by 50% just because I’ve changed

380
00:21:11.86 –> 00:21:18.100
one of them right now before we run this

381
00:21:14.56 –> 00:21:20.740
job something I must tell you although

382
00:21:18.1 –> 00:21:23.830
I’ve drawn this green square outside

383
00:21:20.74 –> 00:21:25.720
here for convenience when it comes to

384
00:21:23.83 –> 00:21:27.460
running it on the machine the machine

385
00:21:25.72 –> 00:21:30.250
won’t allow you to run that green square

386
00:21:27.46 –> 00:21:33.730
even though we’ve specified it as do not

387
00:21:30.25 –> 00:21:36.340
cut the actual dimensions are outside

388
00:21:33.73 –> 00:21:39.990
the work area so we must make sure that

389
00:21:36.34 –> 00:21:44.230
this green square is held just inside

390
00:21:39.99 –> 00:21:46.450
the work area like that you must have

391
00:21:44.23 –> 00:21:48.880
this setting here on your machine that’s

392
00:21:46.45 –> 00:21:51.610
plugged into the PC and you must have

393
00:21:48.88 –> 00:21:54.000
this co-ordinate down here set as

394
00:21:51.61 –> 00:21:58.000
absolute coordinate with your machine

395
00:21:54.0 –> 00:22:00.040
connected to the PC both of those are

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

396
00:21:58.0 –> 00:22:04.150
essential so you cannot actually

397
00:22:00.04 –> 00:22:06.790
transfer this program as a dot ro D file

398
00:22:04.15 –> 00:22:11.200
to another PC that’s connected to the

399
00:22:06.79 –> 00:22:14.230
machine you can save this program as a

400
00:22:11.2 –> 00:22:17.200
dot Rd file in other words save to au

401
00:22:14.23 –> 00:22:19.030
file and all the information stored in

402
00:22:17.2 –> 00:22:20.320
this program will be put into your

403
00:22:19.03 –> 00:22:22.600
machine and you’ll be able to run this

404
00:22:20.32 –> 00:22:25.540
from the machine but the safest way to

405
00:22:22.6 –> 00:22:27.550
run this stuff is to run it on a PC and

406
00:22:25.54 –> 00:22:29.270
program it on a PC that’s connected to

407
00:22:27.55 –> 00:22:32.410
your

408
00:22:29.27 –> 00:22:32.410
[Music]

409
00:22:37.21 –> 00:22:44.700
so there we go virtual array in action

410
00:22:39.9 –> 00:22:44.700
scan scan

411
00:22:45.91 –> 00:22:52.720
this is one way that you can achieve a

412
00:22:49.25 –> 00:22:55.970
datum reference let’s just take this as

413
00:22:52.72 –> 00:22:59.000
an example of something that I want to

414
00:22:55.97 –> 00:23:01.700
make my reference square from now what

415
00:22:59.0 –> 00:23:04.820
I’ve got to do is to make sure that I

416
00:23:01.7 –> 00:23:08.090
lower the bed because there’s a lip just

417
00:23:04.82 –> 00:23:11.510
here and across the back here I need to

418
00:23:08.09 –> 00:23:15.650
make sure that my reference square sits

419
00:23:11.51 –> 00:23:18.020
below that lip and sits on the edge of

420
00:23:15.65 –> 00:23:20.390
the frame around the back here because

421
00:23:18.02 –> 00:23:22.340
this part of the machine is actually

422
00:23:20.39 –> 00:23:24.260
quite square because we don’t have a

423
00:23:22.34 –> 00:23:27.760
great deal of support along this edge

424
00:23:24.26 –> 00:23:31.460
here we need to have this fairly thick

425
00:23:27.76 –> 00:23:35.630
down here and across the back so again

426
00:23:31.46 –> 00:23:38.980
we’re probably going to lose at least 50

427
00:23:35.63 –> 00:23:38.980
mil I would think

428
00:23:39.44 –> 00:23:46.070
so that’s 40 40 I press my origin button

429
00:23:43.04 –> 00:23:48.920
now can see how the smoke

430
00:23:46.07 –> 00:23:50.810
Eddie’s underneath there it was a great

431
00:23:48.92 –> 00:23:53.020
deal of air movement underneath there is

432
00:23:50.81 –> 00:23:53.020
though

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

433
00:23:59.79 –> 00:24:06.010
and that’s a classic example of what’s

434
00:24:01.68 –> 00:24:10.740
happening inside the honeycomb

435
00:24:06.01 –> 00:24:10.740
there is no escape from the honeycomb

436
00:24:12.029 –> 00:24:14.869
reset

437
00:24:31.6 –> 00:24:37.570
there we go 40 40 so I can use that

438
00:24:35.289 –> 00:24:39.990
square again and again to set my

439
00:24:37.57 –> 00:24:39.990
reference

440
00:24:40.98 –> 00:24:45.270
and of course I shall still have to use

441
00:24:42.57 –> 00:24:48.420
absolute coordinates when I’m drawing in

442
00:24:45.27 –> 00:24:51.450
our D works but there is one major

443
00:24:48.42 –> 00:24:54.690
problem with this approach and the

444
00:24:51.45 –> 00:24:58.410
problem now is this length here is so

445
00:24:54.69 –> 00:25:02.490
long that on beginner to generate a

446
00:24:58.41 –> 00:25:05.340
potential error with my lens I can’t

447
00:25:02.49 –> 00:25:07.860
guarantee that the – I can’t guarantee

448
00:25:05.34 –> 00:25:11.880
the beam is going to pass right down the

449
00:25:07.86 –> 00:25:15.140
true centre of the lens because if we

450
00:25:11.88 –> 00:25:15.140
watch very carefully look

451
00:25:15.37 –> 00:25:19.710
there’s a little bit of clearance in

452
00:25:17.17 –> 00:25:19.710
here and

453
00:25:22.48 –> 00:25:30.270
I’m not pushing and pulling that very

454
00:25:24.82 –> 00:25:30.270
hard but I can move that a millimetre

455
00:25:31.25 –> 00:25:34.700
push it that way

456
00:25:41.21 –> 00:25:43.810
both

457
00:25:46.04 –> 00:25:51.440
so you can clearly see there that we’ve

458
00:25:48.68 –> 00:25:54.020
got two positions vertically and two

459
00:25:51.44 –> 00:25:56.060
positions horizontally that that nozzle

460
00:25:54.02 –> 00:25:58.510
could take up because it’s so far

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

461
00:25:56.06 –> 00:26:04.120
extended and not very well supported

462
00:25:58.51 –> 00:26:06.710
so all I’m warning about is that’s fine

463
00:26:04.12 –> 00:26:10.370
if you understand what the limitations

464
00:26:06.71 –> 00:26:12.260
are of using this system now in a

465
00:26:10.37 –> 00:26:13.850
situation like this where maybe you want

466
00:26:12.26 –> 00:26:16.400
to engrave on the surface of a block

467
00:26:13.85 –> 00:26:17.870
because you’ve got some height here it’s

468
00:26:16.4 –> 00:26:21.080
another problem because we’ve pulled the

469
00:26:17.87 –> 00:26:23.450
nozzle right up and we’re still on this

470
00:26:21.08 –> 00:26:25.670
piece of metal here we could go down

471
00:26:23.45 –> 00:26:27.590
with the table quite a long way so this

472
00:26:25.67 –> 00:26:29.240
is a very convenient way for instance if

473
00:26:27.59 –> 00:26:31.330
you’re engraving on the surface of a box

474
00:26:29.24 –> 00:26:33.680
or something and you want a reference

475
00:26:31.33 –> 00:26:35.390
now finally I’m going to show you a

476
00:26:33.68 –> 00:26:35.810
slightly different approach to the

477
00:26:35.39 –> 00:26:40.670
problem

478
00:26:35.81 –> 00:26:44.150
which may suit some people now this is

479
00:26:40.67 –> 00:26:47.180
using my solid metal table when I first

480
00:26:44.15 –> 00:26:50.240
made this it sits over the table and

481
00:26:47.18 –> 00:26:53.750
snuggles in but it’s not absolutely

482
00:26:50.24 –> 00:26:57.800
perfect and error free it’s not movement

483
00:26:53.75 –> 00:27:01.700
free so what I had to do was to cut a

484
00:26:57.8 –> 00:27:04.760
small slot in here at the end of each

485
00:27:01.7 –> 00:27:08.120
side and then I went in there with my

486
00:27:04.76 –> 00:27:10.130
screwdriver and I very carefully bent it

487
00:27:08.12 –> 00:27:12.440
up just to increase the overall length

488
00:27:10.13 –> 00:27:17.650
because I made it wrong by maybe a

489
00:27:12.44 –> 00:27:17.650
millimetre so now when I put the totally

490
00:27:20.08 –> 00:27:24.769
it sits in there and does not move at

491
00:27:24.2 –> 00:27:27.500
all

492
00:27:24.769 –> 00:27:30.860
no I’ll wear that lots of people use

493
00:27:27.5 –> 00:27:33.559
these machines for producing trinkets at

494
00:27:30.86 –> 00:27:36.260
craft fairs for Christmas for birthdays

495
00:27:33.559 –> 00:27:38.830
for all sorts of celebration occasions

496
00:27:36.26 –> 00:27:38.830
and

497
00:27:39.19 –> 00:27:46.360
they have lots of these already made

498
00:27:42.84 –> 00:27:49.600
standard on the shelf now here’s one

499
00:27:46.36 –> 00:27:52.180
that I produced earlier absolute rubbish

500
00:27:49.6 –> 00:27:55.150
but hey it demonstrates the point it’s

501
00:27:52.18 –> 00:27:58.210
not for sale so no you can’t have one

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

502
00:27:55.15 –> 00:28:02.590
even if you ask for one what we do we

503
00:27:58.21 –> 00:28:06.370
manufacture the whole of the unit the

504
00:28:02.59 –> 00:28:10.720
cutting the hole the butterfly the the

505
00:28:06.37 –> 00:28:15.040
logo but we leave off the red layer

506
00:28:10.72 –> 00:28:17.760
which is the personalization so we’ll go

507
00:28:15.04 –> 00:28:17.760
to the red layer

508
00:28:20.059 –> 00:28:27.639
and where it says is output we say no

509
00:28:24.19 –> 00:28:32.679
okay so everything will be cut and

510
00:28:27.639 –> 00:28:32.679
engraved on there except the red layer

511
00:28:32.98 –> 00:28:38.539
and now what we’re going to do we’re

512
00:28:35.679 –> 00:28:43.209
going to come down here

513
00:28:38.539 –> 00:28:43.209
and we’re going to specify to

514
00:28:44.23 –> 00:28:50.390
with a five mil spacing

515
00:28:47.55 –> 00:28:50.390
and to

516
00:28:50.86 –> 00:28:56.150
with a five mil spacing and touch any

517
00:28:54.04 –> 00:29:01.390
other box

518
00:28:56.15 –> 00:29:04.610
and there we go and we’ve removed the

519
00:29:01.39 –> 00:29:07.700
absolute and we put it back to current

520
00:29:04.61 –> 00:29:11.330
position so that I can specify this

521
00:29:07.7 –> 00:29:13.460
starting point for the head on the

522
00:29:11.33 –> 00:29:16.610
material that have available and I can

523
00:29:13.46 –> 00:29:18.770
also lift it off the deck on my spaces

524
00:29:16.61 –> 00:29:20.840
for cutting so that it doesn’t actually

525
00:29:18.77 –> 00:29:25.420
mark the back so I’ll just put my

526
00:29:20.84 –> 00:29:31.480
spacers my standoffs towards the corners

527
00:29:25.42 –> 00:29:36.530
because these acrylic we want nice white

528
00:29:31.48 –> 00:29:38.540
characters but we don’t want white

529
00:29:36.53 –> 00:29:40.400
spilled around the outside of the

530
00:29:38.54 –> 00:29:44.420
characters and the logos and the letters

531
00:29:40.4 –> 00:29:46.490
so we’ve left the covering on now with a

532
00:29:44.42 –> 00:29:48.860
fairly complicated shape like this

533
00:29:46.49 –> 00:29:51.380
butterfly it’s a little bit of a pain to

534
00:29:48.86 –> 00:29:54.080
take the pieces off afterwards but if

535
00:29:51.38 –> 00:29:57.410
you’re doing it beforehand so you

536
00:29:54.08 –> 00:30:00.160
haven’t got to do it on the day all of a

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

537
00:29:57.41 –> 00:30:02.590
sudden it becomes easy

538
00:30:00.16 –> 00:30:04.690
because you can do this in your spare

539
00:30:02.59 –> 00:30:06.940
time so you want to get as much of this

540
00:30:04.69 –> 00:30:09.210
preparation work done as you possibly

541
00:30:06.94 –> 00:30:09.210
can

542
00:30:12.0 –> 00:30:15.130
[Music]

543
00:30:17.32 –> 00:30:23.490
so there we are engrave and cut using

544
00:30:20.23 –> 00:30:23.490
the virtual array

545
00:30:25.95 –> 00:30:31.489
so what I’ve now done

546
00:30:28.58 –> 00:30:34.700
I’ve sellotaped a piece of material onto

547
00:30:31.489 –> 00:30:36.979
the table it could be any material it

548
00:30:34.7 –> 00:30:38.629
doesn’t have to be the same material and

549
00:30:36.979 –> 00:30:41.779
what we’re going to do now from the same

550
00:30:38.629 –> 00:30:44.539
file we just suppress the butterfly

551
00:30:41.779 –> 00:30:46.519
layer and the text layer and the only

552
00:30:44.539 –> 00:30:50.349
layer that’s left is the cut layer take

553
00:30:46.519 –> 00:30:50.349
this down to five millimetres

554
00:30:52.7 –> 00:30:57.440
okay so we can set our origin now at

555
00:30:55.129 –> 00:30:59.960
that point there press the origin button

556
00:30:57.44 –> 00:31:01.460
under no circumstances touch the origin

557
00:30:59.96 –> 00:31:06.279
button again now I’ve suppressed

558
00:31:01.46 –> 00:31:06.279
everything except the cut layer

559
00:31:10.04 –> 00:31:18.310
but pull a piece of tape up backing like

560
00:31:12.89 –> 00:31:18.310
that I should be able to lift it out

561
00:31:19.35 –> 00:31:25.770
now drop that one in I’m going to put

562
00:31:23.19 –> 00:31:29.130
the red layer back on which is the text

563
00:31:25.77 –> 00:31:32.250
layer these output for the cut layer no

564
00:31:29.13 –> 00:31:34.559
I don’t want it to cut again all I want

565
00:31:32.25 –> 00:31:36.539
is the red layer so everything is

566
00:31:34.559 –> 00:31:39.030
perfectly lined up I can move the

567
00:31:36.539 –> 00:31:41.850
drawing around in our D works it makes

568
00:31:39.03 –> 00:31:44.760
no difference because I’ve got current

569
00:31:41.85 –> 00:31:47.640
set and current is always from this

570
00:31:44.76 –> 00:31:49.740
corner of the work so provided that

571
00:31:47.64 –> 00:31:51.900
don’t move the origin point on the

572
00:31:49.74 –> 00:31:52.590
machine here it will always start at

Transcript for Laser Job Positioning and Virtual Arrays (Cont…)

573
00:31:51.9 –> 00:32:07.369
this point

574
00:31:52.59 –> 00:32:07.369
[Music]

575
00:32:10.33 –> 00:32:16.109
and here we go we put the next one in

576
00:32:12.839 –> 00:32:16.109
press run

577
00:32:31.41 –> 00:32:37.100
and then while that’s going on I can be

578
00:32:34.32 –> 00:32:37.100
peeling this off

579
00:32:54.48 –> 00:32:57.849
[Music]

580
00:32:58.08 –> 00:33:01.760
and provided it’s not clear

581
00:33:07.71 –> 00:33:13.820
and provided it’s not clear material I

582
00:33:10.05 –> 00:33:13.820
can give it a puff of isopropyl alcohol

583
00:33:21.09 –> 00:33:26.879
and quickly give it a nice shine well

584
00:33:25.83 –> 00:33:29.399
here we are at the end of another

585
00:33:26.879 –> 00:33:31.919
session I hope some of that will be of

586
00:33:29.399 –> 00:33:34.730
use to you so until the next time

587
00:33:31.919 –> 00:33:34.730
cheerio

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