08 – RDWorks Software: Setting the Processing Order (39:38)

00:15

welcome to another session of lightblade

00:17

learning lab and today we’re going

00:20

to do a complete project we’re going to

00:24

start off with a drawing that I have

00:26

already created in another program and

00:28

as I’ve already mentioned to you this

00:30

program rdworks is not a CAD program

00:34

it’s not a drawing program it’s an

00:35

interface program so you will need to do

00:38

design work elsewhere and then import

00:41

your file now I’ve imported my file here

00:44

series of parts which when we look at

00:48

them you see that they’ve got outside

00:49

shapes they’ve got holes in and we’ve

00:53

got some text now this text was created

00:56

in my cad program and it’s been

00:58

specially created as a single line text

01:01

i purposely haven’t used the sort of

01:05

texts that you would normally think of

01:06

which has got some with to it and some

01:10

character to it

01:11

the reason I’ve done that is because I

01:15

want to keep this session as simple as

01:16

possible and we can actually cut this

01:19

text as opposed to engraving it or

01:21

catching it now engraving is a subject

01:24

all on its own which we will tackle in

01:26

another session so I’m not wanting to

01:29

complicate this session too much because

01:30

we’ve got enough to deal with any way

01:32

we’re going to be cutting the text and

01:35

we’re going to be cutting the outside in

01:37

the shapes but we don’t want the text to

01:40

go right the way through so we’ve got to

01:43

use a different power a different speed

01:46

we’ve got to process the text

01:48

differently to the rest of the items on

01:50

this page to do that we’re going to have

01:53

to put it onto a different layer

01:56

let’s go through how we do that to start

01:58

with first of all we will remove the

Transcript For RDWorks Software Feature (Cont…)

02:00

handles that happen to be defaulted when

02:02

you import it and now we need to mark

02:04

this text now you need to be very

02:07

careful because we’ve got to put a

02:09

little marquee round each piece of it on

02:13

its own so we’ve got lightblade there

02:15

and you’ll notice that is turned rate

02:17

that’s fine that means we’ve captured it

02:19

now we must press the shift key on the

02:22

keyboard without catching any other

02:25

complete object and you’ll see that i

02:28

can start off outside the outside shape

02:31

steer clear of the whole i can go across

02:35

steer clear of that hole on the right

02:37

hand side and steer clear of these that

02:39

all slots at the bottom and I can

02:44

collect that one as well so now i’ve

02:47

added all of these pieces together into

02:50

a little group we haven’t actually

02:51

defined them as a group but they have

02:53

just been marked as a group we will now

02:56

go down to the bottom left-hand corner

02:58

here and we will select any one of these

03:01

colors but let’s just check the select

03:03

the blue layer because we’ve already got

03:04

a black layer on the page

03:05

ok so now our text has become blue and

03:10

you’ll notice up at the top right hand

03:12

corner here we’ve got a blue layer

03:14

that’s been added

03:15

let’s just take a quick look at that

03:17

blue layer by double clicking on the

03:19

blue patch

03:20

ok so how do we go about selecting the

03:23

speed and the power

03:25

well it all comes down to experience in

03:27

a way thinklaser have supplied you with

03:30

a little memory stick with this machine

03:32

now I only suggest that you go in and

03:35

take a look at that memory stick because

03:36

you’ll find data on their referring to

03:39

speeds and feeds for your machine they

03:42

will be typical but they’re at least a

03:45

start

03:46

I’ve got some experience which i will

03:49

call upon and point out to you one or

03:52

two things first of all we’re cutting

03:54

small characters remember the background

03:58

grid on this picture is only five

Transcript For RDWorks Software Feature (Cont…)

04:00

millimetres so that means these

04:02

characters only three millimetres tall

04:04

now

04:06

how fast can the Machine accelerate

04:09

can’t get up to a hundred millimetres a

04:12

second and back down to nothing in three

04:14

millimeters

04:15

I doubt it so the chances are this these

04:20

characters are going to be speed

04:23

controlled by the machine itself not by

04:26

you

04:27

so even if you put 500 millimeters a

04:30

second in there it’s going to make no

04:32

difference told to the speed at which

04:34

these letters are going to be cut so you

04:36

might as well plant something reasonable

04:38

in there hundred millimeters a second is

04:40

still unlikely to be achieved by the

04:42

machine but we don’t want the machine to

04:45

cut all the way through so we need to

04:48

keep the speed fast so that it stays as

04:51

fast as the machine can go the next

04:54

issue is the power we’re going to be

04:55

using three millimeter thick acrylic to

04:58

do this job and even if we were to apply

05:02

maximum power the full 60 watts of my

05:04

machine we would not be able to cut

05:06

through this material at hundred

05:08

millimeters a second

05:10

so therefore it really doesn’t matter

05:13

but what we’re going to do is back the

05:15

power right down to something like

05:17

thirty percent so that we can make sure

05:20

that we scratch the surface rather than

05:23

go deeply in and now we’ll go to the

05:28

black layer which is the cutting liar

05:30

and we’re going to choose some

05:32

parameters for cutting well as i did

05:35

mention to you were using three

05:37

millimeter acrylic on this job from

05:40

experience I would know that cutting

05:42

three millimeter acrylic with probably a

05:44

one-and-a-half inch lens which is a

05:46

quite a powerful cutting lens i would be

05:50

able to probably get up to maybe 20

05:52

maybe even 25 millimeters a second but

05:56

we’re going to be using a

05:57

two-and-a-half-inch maybe 2-inch lens

05:59

which means that its power density is

Transcript For RDWorks Software Feature (Cont…)

06:02

less that’s a completely different

06:03

subject but it does mean to say that i’m

06:05

going to choose a very conservative

06:07

number here and I think 12 probably 12

06:10

is ok maybe even 10 let’s settle with 12

06:14

we can always check it out on the

06:16

machine if we get it wrong we can modify

06:19

the parameters on the machine and power

06:22

well we want the power its maximum now

06:25

you may remember the previous session we

06:27

established that the maximum power I can

06:29

use with my 60 what to buy this machine

06:30

is sixty-seven percent if i run anymore

06:34

than that i will be over driving to tube

06:37

and shortening its life i’m just being a

06:40

good boy and I’m sticking to the 67%

06:42

cutting yes blowing yes output yes job

06:50

done when we cut the first program we

06:53

use the honeycomb paid now i’m going to

06:57

use a slightly different approach this

07:00

time and it means the parts are going to

07:03

physically drop out

07:05

it’s a good way to remember that you

07:09

must ensure that you do your engraving

07:11

or you’re cutting first you must do your

07:16

holes first before you cut your outside

07:20

shapes because once the part has been

07:22

cut it will fall out and you’ve got no

07:25

chance of coming back to cut the holes

07:28

so cut your holes before you cut your

07:31

outside shape so that does mean to say

07:34

that we’ve got to put some logic into

07:36

the way that we order the cuts the

07:40

processes and we talked about how you

07:43

would do that in a previous session and

07:45

we looked at this thing here called

07:48

handle

07:49

and we had something called cut

07:51

optimized if you remember we would have

07:53

order of layer and then we would cut

07:56

inside to outside the order of land

07:58

meant that we could do the blue layer

07:59

first and then we could do the black

Transcript For RDWorks Software Feature (Cont…)

08:02

layer second which is fine but then we

08:07

had a further control within the black

08:09

clay which said that we could cut inside

08:11

to outside on single objects so that

08:15

meant that we would cut all the holes

08:17

before we cut the outside shape all the

08:19

holes before we cut the outside check

08:21

which was perfect that’s exactly what we

08:23

wanted start cut optimized start point

08:27

optimized well yeah you can have it or

08:29

not have it it really isn’t a big issue

08:32

with a small job like this so we could

08:35

say okay let’s see what we’ve just

08:38

created before we go anywhere near the

08:40

machine will go to the previous screen

08:42

we do a simulation and we’ll put that to

08:44

half speed so that we can watch it

08:46

working and sure enough it’s going to

08:49

create the text first weekend no speed

08:53

it up because we don’t sit around here

08:54

too long

08:55

oh it’s doing some outside shapes now

08:57

that’s fine

08:58

now it’s doing some holes first and then

09:01

it’s going to yes it does do the outside

09:03

shape so it’s did behaving itself well

09:05

we could say at that stage

09:07

let’s go to the machine that process

09:10

works most of the time I’ve come across

09:13

quite a few drawings where despite

09:16

setting those features it doesn’t behave

09:19

in the way in which you would predict

09:21

and so consequently I don’t rely on cut

09:25

optimized at all i remove

09:29

these features I on tick every box in

09:33

here and i’m happy to leave that is a

09:35

nothing box and I come down here to the

09:39

right-hand corner and there’s something

09:41

down here called path optimized now that

09:45

could be ticked by default

09:48

make sure you uncheck it ok so now I’ve

09:53

got complete control over how I want

09:56

these pieces cut

09:58

ok so what’s the alternative well

Transcript For RDWorks Software Feature (Cont…)

10:01

there’s a very powerful alternative that

10:03

we can use and that’s a feature up here

10:05

called edit cut property click on that

10:10

and we open up this lovely box let’s

10:13

just move that out the way a minute

10:15

because what we’ve got here is every

10:18

single element on this drawing has got

10:21

its own cutting command and the order in

10:25

which it’s cut is defined by this list

10:28

let’s just take a look for example at

10:32

that outside shape there which are just

10:35

highlighted oh look there it is very

10:38

conveniently on this list its item 20

10:41

what about holes that hole there that’s

10:46

item 19 mm okay so that means that hole

10:50

will be cut before the outside shape but

10:53

hey we don’t want to go around in order

10:55

let’s have a look how many items we’ve

10:57

got on this list we’ve got hundred

10:59

elements on this list that’s a hell of a

11:00

lot of items to rearrange in the order

11:03

in which we want them arranged

11:05

we’re not going to do that we are going

11:07

to use this edit cut property box but

11:10

before we start going in there

11:11

what we’re going to do is we’re going to

11:13

organize yourself into a much smaller

11:17

group of parts and the keyword in that

11:20

sentence was group

11:23

let me just explain we’re going to first

11:26

of all pick up these four holes across

11:28

the bottom here for example and we’ve

11:31

put them into a little selected group

11:34

now we’re going to change them into a

11:36

real group and I keep reinforcing the

11:39

word group because it’s a very powerful

11:41

word so we got here to this command we

11:44

click group so now if we look I can

11:47

click on this one item here and it will

11:50

mark the whole of the group so I’ve got

11:56

to be a little bit smarter with my

11:58

marquee this time because what I’m going

Transcript For RDWorks Software Feature (Cont…)

12:00

to do I’m going to use my market to

12:02

select just four of those external

12:04

shapes but i haven’t selected the

12:08

complete group of holes and so

12:11

consequently the group of holes remains

12:12

black but the outside shapes have gone

12:15

rate i’m not going to press down my

12:17

shift key and it doesn’t matter i could

12:21

for instance come back to hear and I

12:24

could now select

12:27

doesn’t matter them riesel ecting the

12:30

red group but what I haven’t done

12:32

selected the whole of the black group

12:34

and now I’ve managed to capture the

12:36

whole of the group that I wanted which

12:38

is the external shapes along the bottom

12:40

there and I’m going to put those into a

12:42

group now if it had been smart about it

12:46

when I selected these parts to go onto

12:50

this blue layer at the same time I would

12:54

have also put them into a group now I

12:58

didn’t want to preempt this grouping

13:01

technique at that early stage but just

13:05

remember when you’re selecting parts for

13:07

a layer

13:08

it’s very good to group them as well so

13:10

that you’ve already got that job done so

13:14

let’s go back and select my blue parts

13:16

shift key down

13:25

check they’re all rate and we put them

13:28

into a group job done

13:32

ok now I no need to select the holes on

13:35

this part as a group I could start at

13:39

the top here with my marquee and I could

13:42

drag it right towards the bottom here

13:44

and i’ve captured the l of lightblade

13:49

as well so if i leave the l out I should

13:54

just capture the holes which I have done

13:58

shift key down and we’ll capture the

Transcript For RDWorks Software Feature (Cont…)

14:02

rest of the holes so we put all the

14:04

holes on that pattern there as a group

14:06

click group now I don’t have to worry

14:12

about the outside shape at the moment

14:13

because we’re not going to put that into

14:15

a group so now we can put this group of

14:18

holes here into a group and there will

14:24

capture very carefully with a marquee

14:26

not capturing the outside shape the

14:29

holes for that group and the same for

14:34

that group

14:38

I could have captured all of those holes

14:41

and put them into a group not a good

14:45

idea generally in this instance I don’t

14:50

think it would have made any difference

14:51

at all because it’s a very small project

14:55

but in general try and cut your outside

14:59

shape as soon as you cut your holes that

15:03

way you’ll have no miss registration

15:05

possibility between the outside shape

15:08

and your holes if i move if i do this

15:13

pattern here and then move off and do

15:14

all sorts of other things

15:16

there’s always a risk a very low risk

15:19

but there’s always a risk that by the

15:21

time I come back to cut this shape the

15:24

holes may well have moved very slightly

15:26

most of the time it doesn’t matter but

15:28

in certain key jobs like this one it

15:31

would matter so as a general practice i

15:34

would advise cut the holes first and

15:36

immediately cut your outside shape right

15:40

now that we’ve done a grouping process

15:41

let’s go and have a look see what effect

15:43

its had on our cut list edit cut

15:46

property

15:47

well there we go from a hundred elements

15:50

we now down to 11 elements that’s a much

15:53

more manageable list for us to edit so

15:56

we will start off by clicking on the

15:59

part that we want to run first which are

Transcript For RDWorks Software Feature (Cont…)

16:01

the holes and you’ll notice they have

16:03

highlighted and we can see in this list

16:07

that element number five we don’t need

16:09

to click on that because it’s already

16:10

highlighted for us we can just go to the

16:12

double arrows at the top of the list and

16:14

do click and it will transfer that item

16:17

to a new list as number one in the list

16:20

and then we’ll do the outside shape

16:24

click

16:26

then we’ll do the text here click then

16:30

we’ll do the holes click outside shape

16:36

make sure you highlight the outside

16:39

shape then we’ll get the whole highlight

16:41

outside shape missed it outside shape

16:49

holes

16:55

actually shape

17:00

holds

17:04

actually shape

17:07

and there we go there’s our well ordered

17:09

list so we can now say okay and to be

17:16

honest once you organize that list like

17:19

that you don’t ever need to go up here

17:23

to preview again because you could be

17:26

totally confident that the machine will

17:28

do what you want it to do

17:30

we’ll just go and have a look to prove

17:32

the point of making the simulation will

17:34

be perfect

17:35

trust me holds outside shapes along the

17:40

bottom text next holes next outside

17:44

shape inside holes outside shape and an

17:52

outside shape at the moment we’re still

17:54

programming remotely we’re not on the

17:56

machine if we’re on the machine we would

17:59

be doing a download but because we’re

Transcript For RDWorks Software Feature (Cont…)

18:02

not on the machine we’re saving the file

18:04

to a memory stick

18:05

so we need to go to save to you file i

18:10

would advise you as a general practice

18:12

go here first file save as

18:18

now if you’ve started to on a very

18:20

complicated program i was just that you

18:23

go and save as at a very early stage and

18:27

we’ll save this as beam ref now this get

18:32

saved as a a dot rld file which means

18:35

that it is readable by rdworks again

18:38

and again whereas when we go to save to

18:42

you file what it does it creates a

18:45

machine code program which you cannot

18:48

open and you cannot read so don’t try

18:52

and open in rd file in here because you

18:55

won’t succeed

18:57

although rdworks is fairly bulletproof

19:01

there are times when you can get it to

19:03

crash

19:05

and if your part way through your

19:06

programming and it may be a big program

19:09

and the program crisis you are going to

19:12

be a little bit frustrated now you

19:17

notice how just zoomed out there with my

19:20

scroll if we took take a look up at the

19:22

top left hand corner we should find that

19:25

this is the eight dot 0 1 dot 18 thats

19:29

issue 18 there have been lots of issues

19:31

of this program and something which has

19:36

been fixed and hasn’t been fixed and if

19:39

I scroll down far enough

19:41

completely Oh

19:48

I can’t scroll back again program has

19:51

crashed close the program that’s the

19:53

only choice we’ve got so if we haven’t

19:55

saved we’re going to be a bit upset

19:58

fortunately we saved it before we

Transcript For RDWorks Software Feature (Cont…)

20:01

crashed it so i can now open this file

20:04

as beam reference this Honey Can bed

20:07

it’s it’s better than I expected it to

20:10

be but it’s still got some problems

20:12

which I foresee for the future and I

20:15

don’t want to make this bait sticky one

20:21

of the problems with acrylic is it

20:23

changed to produce a watery residue a

20:27

bit like steam that condenses into a

20:30

sticky goo around the place it can go

20:33

into your filters it can go into here

20:36

and it would make this sticky which

20:39

further attracts dust i use a still play

20:45

now the steel plate is got several

20:47

advantages first water on here look I

20:50

can I can stick to magnets so we can

20:53

support put the support right on the

20:55

corner so they’re not likely to be cat

20:57

for we don’t have to worry about it and

21:00

we’ll just check where that one goes in

21:03

relation to the program but i think it’s

21:06

going to be clear of the program and as

21:08

it’s working i would explain why i’ve

21:10

done that so it’s about it’s about 10 or

21:13

12 millimeters clearance underneath

21:14

there now i’m going to make sure that

21:19

the magnets are sitting in the corner

21:21

somewhere away from the work itself in

21:24

other words where I’m going to cut the

21:26

program but it’s

21:29

I think I put one in the middle there

21:37

yep that’s that’s quite nicely supported

21:40

their first task autofocus so we will

21:46

drive onto the job

21:49

check that wilfully up with her head

21:59

okay so it’s not making the autofocus

Transcript For RDWorks Software Feature (Cont…)

22:01

sensor

22:07

what that means is we’ve got to gently

22:12

drop the probe down and so it just about

22:16

but not quite touches the surface which

22:19

is lifting attach it and lift it off and

22:22

now we press autofocus again

22:45

right now the other thing that I’m going

22:46

to do is to ask you to look carefully at

22:49

the flow of the smoke that’s coming out

22:53

underneath the fumes and because what

22:56

I’m going to do at the moment i’m

22:58

running this machine with the lead open

23:00

where I’m going to do is to close the

23:03

lid and we’re going to look at the

23:04

difference between the air flow with the

23:07

lead open and the lead closed i’m going

23:10

to turn the extraction system on the

23:13

program

23:20

you can see the smoke puffing away

23:26

and redrawn nicely at the back of the

23:29

machine but

23:31

I suspect that’s going to get a lot

23:32

better

23:37

I think it proves the point the FBI was

23:39

actually better with the lid open

23:41

it’s just the airflow is being strangled

23:45

by the holes in the league

23:49

with the lid closed the fumes were

23:51

egging up in the case not waiting up

23:54

here

Transcript For RDWorks Software Feature (Cont…)

24:00

but if you notice the film is underneath

24:20

ok so there’s the job cut quite often

24:22

when you’re cutting acrylic you will get

24:24

a watery residue left on the surface

24:28

here and it’s very sticky if there is

24:33

just hate it there

24:36

although on this occasion I’ve not

24:40

created the sticky it’s a little bit but

24:42

i haven’t created the sticky goo that

24:45

often happens when you’re cutting

24:46

acrylic but what I’d normally do is I

24:50

would use then acetone 20 yes it’s

24:55

definitely sticky and how to fill this

24:57

dragging i would put use it with use

25:00

acetone to clean them off but recently

25:02

somebody said to me why use a dangerous

25:04

chemical when all you really need is

25:06

white vinegar and that does a superb job

25:09

my argument really is if it’s condensing

25:13

on here and I can wipe it away it’s not

25:16

going down into the machine or into the

25:18

extraction system now there is one more

25:20

obvious advantage of housekeeping

25:22

advantage over using the honeycomb bait

25:24

then there is this

25:31

all our pieces now with the film

25:34

stripped off and we’re going to need as

25:39

an assortment of parts which I would

25:41

describe as we go along but there will

25:43

also be a listing of this and probably

25:46

on the thing place of website now the

25:49

one thing that won’t be fined is this

25:53

now I defy anybody to say they haven’t

25:56

got at least half a dozen of these click

25:58

pens around in there draw that either

Transcript For RDWorks Software Feature (Cont…)

26:00

don’t work or that they don’t need well

26:02

now you’ve got a use for them because

26:04

inside here is a valuable resource and

26:10

there it is

26:10

we’ll need two of those Springs if you

26:18

can find a matching pair

26:19

briggen if they don’t match don’t get

26:22

too upset

26:24

ok now the first item we’re going to

26:26

pick up as the this one with all that

26:29

because in the middle and if you look

26:32

carefully you’ll see that around about

26:33

ten o’clock here we’ve got a little hole

26:36

3 millimeter hold now we need to pick up

26:40

this piece as well and again you’ll find

26:43

that you cannot put this one on and

26:46

match the holes up unless you put on the

26:48

right way so that sits in front of their

26:51

want that then you turn them over one of

26:58

those and then two of these

27:00

ok now the moment I’ve got my hole down

27:02

here at about five o’clock or six

27:05

o’clock to slide this place off for a

27:07

moment and we’re going to put the one

27:10

with the hexagon in front of the one

27:12

with the Holy and then we’re going to

27:17

put those tons into that hole there so

27:22

the hexagon is facing this center hole

27:26

and then we’re going to take this piece

27:28

i’m going to drop it over

27:35

they’re like that and that should sit in

27:37

there and that should all look in there

27:40

nicely now like a little corner

27:42

reference angle now we’re going to do

27:50

exactly the opposite over this corner

27:51

here this little piece here will drop

27:54

over and cross lap with that one and

27:58

plug into the matchup a hole in here

Transcript For RDWorks Software Feature (Cont…)

28:00

with the whole in here and we’re going

28:03

to slip this one over the top

28:06

technically it doesn’t need glowing at

28:09

all because everything is nice and snug

28:12

in there but i would advise you to glue

28:16

it going to use this bond right cement

28:18

again which technically as I keep

28:20

telling you should be acrylic cement

28:22

this is petg well cement which will

28:26

perform satisfactory on a critic who

28:28

drops to the bottom of that ball that’s

28:30

enough to do the job I would suggest

28:32

whenever you’re using this stuff you do

28:33

it over or on a piece of kitchen towel

28:37

because it is quite aggressive two

28:40

surfaces and also you don’t really want

28:43

running anywhere so it does if there’s

28:45

any excess go through to the other side

28:46

it will automatically soak up in here

28:48

now the light may or may not be right

28:51

for you to see this when i pop that in

28:53

there and tip it up i should be able to

28:57

get a little bead to run down there and

29:00

i’ll get a little bit to run down there

29:02

as well and one down here

29:11

one down here now feel is already run

29:17

through the back onto my fingers so just

29:19

like the back off the next place

29:22

involves these llamas they look like

29:24

llamas or reindeer is if you look

29:28

carefully you’ll see that three of them

29:31

have got noses and one of them doesn’t

29:36

so the one that doesn’t have a nose on

29:40

it

29:41

topic 2 aside for a minute now if you

29:44

can read that text then right about here

29:47

at about eight o’clock time you’ll see

29:48

there’s a small hole

29:52

it should be a matching hole in the disk

29:55

so you should be able to line them up

29:58

but the reason why I’m asking you to do

Transcript For RDWorks Software Feature (Cont…)

30:01

this is because these have got to go on

30:04

the back of this so we turn it over and

30:10

one of those with the nose on going to

30:12

very carefully try to get it through

30:16

both thicknesses that could be quite

30:22

stiff we’re not rely on anything other

30:25

than friction to hold this together so

30:28

it is not if it’s not a snug fit then

30:32

realistically we’ve got to go back and

30:35

we’ve got to remake these holes here to

30:39

make this snow fit now that’s a

30:42

completely different design exercise

30:44

which I need to go through with you at

30:45

some future date how you’re going to

30:47

design parts to fit because it depends

30:51

on the lanes that you’re using and

30:53

various other things about the material

30:55

that you using the 50 you’re going to

30:57

get now what we need is this little

31:01

thing here now this is only a few paints

31:04

off of ebay and it is in fact a laser

31:08

diode so pretty came through the whole

31:11

to start with and then very gently

31:15

because these cables here are delicate

31:18

that should

31:20

sit snugly between the reindeers the

31:28

nose of the reindeer should fit in a

31:30

slot that’s round here and that will

31:33

lock that in place so this needs to be

31:35

pushed in

31:35

make sure you’ve got the nose or the

31:37

reindeers pushed in

31:39

then we need the reindeer or the llama

31:41

without the nose on as the last one now

31:45

before you put that one in if you take a

31:48

look your savings it was circuit board

31:50

on there make sure that that circuit

31:51

board is not projecting anywhere to get

31:53

in the way of the llamas that should be

31:55

sitting between somewhere between the

31:58

lovers if these little pigs sufficiently

Transcript For RDWorks Software Feature (Cont…)

32:01

stuck in these holes they should be

32:04

completely solid in here and knock

32:06

around at all

32:07

now if you really need to you can glue

32:11

the bottom there and you can even put a

32:13

blob of glue down against the data gets

32:17

the laser diode as well the point is the

32:21

diode must not move

32:23

it’s got to be rock solid now in normal

32:27

engineering circumstances I would

32:30

suggest you drove her out where we put a

32:32

hole through there and I would

32:33

physically be tapping putting attack

32:35

through there but understand that

32:37

probably most of you guys might not have

32:38

tapping facilities and what I’ve done

32:41

I’ve arranged to put a nut in their

32:44

in-state for attack toll

32:47

ok so we put a nut in there and we put

32:50

one of these long one each plastic

32:53

screws through there

33:00

but make sure that it doesn’t stick out

33:02

about this surface with the two screws

33:05

at the top and the lightblade

33:09

description sitting the right way round

33:12

you will see that this little piece of

33:16

the back here if you look carefully

33:20

you’ll see that is greatest

33:22

it’s curved and it sits in these little

33:27

slots here and if you rock it around

33:32

you’ll find that it rocks around very

33:39

easily into planes now the idea of that

33:42

mechanism is at the front face of the

33:47

LED always remains in the same position

33:51

in space is the back end of the LED

33:54

which is swinging around not the front

33:57

and now the next part of the assembly I

33:59

need you to make sure they go together

34:00

like this with the holes lining up with

Transcript For RDWorks Software Feature (Cont…)

34:03

each other and before you start using

34:07

these springs which we cut down so

34:11

they’re probably 15 about 15 mil longer

34:14

springs but then I want you to get hold

34:16

of the end of the spring where you cut

34:18

it and physically just bend it out like

34:26

that

34:27

can you see that so that sticks out

34:29

about three millimeters

34:31

now the reason you’re doing that is

34:34

because the spring will actually sit

34:36

down and jam inside the hole and we

34:40

don’t want that to happen at three

34:41

o’clock we’re gonna go any three screw

34:43

through and then we’re going to put the

34:45

spring on with its tail against the

34:48

plastic and then you’re going to put the

34:51

nut on as you can see the spring is

34:53

about the same length as the screw

34:56

itself so that’s an ideal guy just how

Transcript For RDWorks Software Feature (Cont…)

35:00

long the spring has got to be cut down

35:01

and then we need to wind and not on so

35:04

that it’s just flush with the screw the

35:07

one that’s at six o’clock we need to do

35:09

the same tingly

35:10

ok now if you

35:11

grab hold of these two holes opposite

35:14

the springs you should find the whole

35:18

thing will flex up and down and you’ve

35:22

got a nice little sort of fancy

35:24

compression flexi sisters your other 2m4

35:28

nuts and put those behind there there is

35:33

a there is a cavity behind there to take

35:35

the nut house in the cavity and put your

35:39

screw through from the front

35:40

ok so hopefully we’ve now got a nice

35:43

gift nice little game board led pointer

35:48

now I’m just gonna go with my soul

35:50

during iron and attached some extension

35:52

leads to these here we’ve got a cheap

35:56

battery box with a couple of AAA

35:58

batteries in it with a switch on it so

36:02

it’s a nice convenient portable tool you

Transcript For RDWorks Software Feature (Cont…)

36:06

could buy these as a fireball diode and

36:10

you could probably hook it up to your US

36:13

based system somewhere but i thought

36:16

that the 3 volt version would work

36:19

better with a battery box but here i

36:22

have about a meter and a half away from

36:27

the war we’re projecting this onto and

36:29

I’ve got a spot there is about probably

36:32

four millimeters diameter as i close in

36:39

to what six inches it might have dropped

36:43

three millimeters it’s not changing

36:45

significantly the flare pattern or the

36:48

interference pattern around the outside

36:49

is changing but the actual dot itself is

36:52

not changing

36:53

let’s see where it goes and what we’re

36:55

going to be able to do with it right

36:59

here is going to be able to drop their

37:00

in there like that make sure i’m not

37:03

support back into the slots know that

37:06

should be flat back of the front face of

37:08

the water jacket

37:11

no we can turn it on

37:14

and you may remember in one of our

37:18

earlier sessions now that we made this

37:20

is our first project and this is a

37:24

little target holder if we open up the

37:26

side door of the Machine a little target

37:28

holder sits on top of that mirror plate

37:33

there make sure it sits tight against

37:35

the plate at the bottom so they’re

37:37

sitting back nice and flat is the

37:41

beamline up on center one way and now

37:45

i’m adjusting screws the line-up on

37:46

centre the other way now move that one

37:51

out of the way or we can leave it in

37:52

place and just remove the target because

37:55

the beam is designed to pass through

37:57

there so we could leave that in place

37:58

like that and here we have the other

Transcript For RDWorks Software Feature (Cont…)

38:02

target holder that you made and that

38:04

fits snugly over this mirror number

38:08

three fit snugly back against it we can

38:14

hit the target in the top there and

38:24

we can see how we lined up on that one

38:26

so that immediately tells me that

38:30

there’s some sort of problem with the

38:32

alignment of the mirrors on this machine

38:33

which I’m gonna have to look at sooner

38:37

rather than later so maybe that will be

38:40

the next session now that we’ve got this

38:42

tool i could tweak it up coming to the

38:47

right place because the fact that i’ve

38:52

said it correct on mirror number two so

38:55

that’s now more or less correct mirror

38:57

number three at the extremity of the

38:59

beam path

39:00

let’s just go back and check what it is

39:04

at mirror number two

39:06

well that’s what mirror number two looks

39:09

like it’s a bit high but it’s still

39:16

hitting the mirror because it’s still

39:19

within one target ring and we’ll talk

39:26

about what those rings mean in the next

39:29

session

39:30

thank you very much for your time again

39:32

i hope this has been an interesting one

39:34

I think it’s going to be even more

39:35

interesting in the next session actually

Transcript For RDWorks Software Feature