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

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[Music]

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welcome to another lightblade learning lab

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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 RDWorks 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

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should we let’s do something silly like

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Bauhaus it doesn’t really matter

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100% width

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and we’ll have characters that maybe

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let’s just see what 10 looks like yeah

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that’s okay first of all I’m going to

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ungroup all of that lot then I’m going

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to group that one group then I’m going

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to group this one group then I’m going

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to group this one group

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the whole lot I’m going to mark the

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whole lot and I’m going to specify it to

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be sent centralized and vertically and

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there we go now it’s justified

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

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now put the whole lot back into a group

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will change it to a blue layer and I can

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position all of that because it’s a

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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

262
00:14:26.02 –> 00:14:31.510
got my text in the middle of my badge

263
00:14:28.11 –> 00:14:34.690
let’s call it that and we set the blue

264
00:14:31.51 –> 00:14:40.680
layer to be a scan layer and we’ll run

265
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

271
00:15:13.319 –> 00:15:21.179
I’m going to ask it for an array now I’m

272
00:15:18.209 –> 00:15:23.910
going to do an array copy here and if we

273
00:15:21.179 –> 00:15:26.100
take a look at this little logo here

274
00:15:23.91 –> 00:15:27.929
which I’m clicking at the moment you’ll

275
00:15:26.1 –> 00:15:30.119
see that there’s a little black dot in

276
00:15:27.929 –> 00:15:31.799
the corner now you need to put the

277
00:15:30.119 –> 00:15:33.029
little black dot at the top right hand

278
00:15:31.799 –> 00:15:34.799
corner which is where you’re going to

279
00:15:33.029 –> 00:15:37.139
build your array from because you’re

280
00:15:34.799 –> 00:15:39.569
going to build it going left and going

281
00:15:37.139 –> 00:15:41.879
downwards exactly as it says here and

282
00:15:39.569 –> 00:15:44.790
we’re going to put three on the top line

283
00:15:41.879 –> 00:15:48.569
and we’re gonna have spacing of five

284
00:15:44.79 –> 00:15:51.689
millimetres between each one and we’re

285
00:15:48.569 –> 00:15:56.910
going to put three downwards and again

286
00:15:51.689 –> 00:15:59.239
five spacing between them okay and there

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

287
00:15:56.91 –> 00:16:01.559
we go that was nice and simple wasn’t it

288
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

295
00:16:24.81 –> 00:16:36.060
cut the badges out and here we go

296
00:16:27.8 –> 00:16:39.120
ba-ba-ba-ba-bom 1 2 etc sometimes that’s

297
00:16:36.06 –> 00:16:43.649
not very convenient especially if you’ve

298
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

300
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

313
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

316
00:17:51.46 –> 00:17:55.240
the cutting on another layer this one

317
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…)

318
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