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Jetro de Château · 2016-08-07, 16:20

I'm looking for a substitution part for a length of string without end studs, an undetermined length of rolled up string.
Does such a substitute part exist anywhere? I haven't seen it on the tracker, but maybe one of you knows if someone has prepared anything like this (in the same way there are other substitution parts / unofficial parts / helper parts available)

***Philippe Hurbain*** · 2016-08-07, 20:02

Hi Jetro,
No, I don't think such a part exists Sad

Jetro de Château · (This post was last modified: 2016-08-08, 7:49 by Jetro de Château.)

(2016-08-07, 20:02)Philippe Hurbain Wrote: Hi Jetro,
No, I don't think such a part exists

I expected as much, so I made one.
I suppose the unofficial parts folder is the best place to keep it.
Should I save it as a .dat file instead of a .ldr file?
Also, why doesn't the part turn up in LDCad and isn't recognised if I use a substitution (0 !LPUB PLI BEGIN SUB string.dat 0 etc.) in LDPub3D when I place it in the unofficial/parts folder?

Code:
Name: string.ldr

Author: Jetro

!KEYWORDS flexible, string, rope

!LDCAD CONTENT [type=path] [addFallBack=default] [looped=false] [displayKind=mm] [curveStep=0] [displayLenCor=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 0 0 0 -1 0 1 0 0 0 0 1] [prevCPDist=25] [nextCPDist=12.5] [cirR=25] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 -9 0 0 1 0 -1 0 0 0 0 1] [prevCPDist=13] [nextCPDist=12.5] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 8 0 0 -1 0 1 0 0 0 0 1] [prevCPDist=13] [nextCPDist=21] [cirR=25] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 -15 0 0 1 0 -1 0 0 0 0 1] [prevCPDist=22.5] [nextCPDist=25] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 15 0 0 -1 0 1 0 0 0 0 1] [prevCPDist=25] [nextCPDist=33] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 -21 0 0 1 0 -1 0 0 0 0 1] [prevCPDist=34.5] [nextCPDist=34.5] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 22 0 0 -1 0 1 0 0 0 0 1] [prevCPDist=36] [nextCPDist=44] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 -28 0 0 1 0 -1 0 0 0 0 1] [prevCPDist=45] [nextCPDist=43.5] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 30 0 0 -1 0 1 0 0 0 0 1] [prevCPDist=49] [nextCPDist=52] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_POINT [type=bezier] [posOri=0 -36 0 0 1 0 -1 0 0 0 0 1] [prevCPDist=56] [nextCPDist=25] [cirR=20] [cirDir=xyCW] [prevYRoll=0] [nextYRoll=0]

!LDCAD PATH_SKIN [donCol=16] [donOri=1 0 0 0 1 0 0 0 1] [donPart=ldcLQRopeSeg.dat] [donYSize=400%] [donCen=absCen] [donCenYOfs=0] [donFinScale=segMerge] [donPlace=refsDyn] [donYAlign=0] [donInline=true] [segSize=75%] [segSizeTol=5%] [segsCnt=0] [segsGrp=0] [segsMaxMerge=0] [segsMrgAng=0] [segsMrgRollAng=0] [segsEdgeDelKind=keepFirstLeft]

!LDCAD GENERATED [generator=LDCad 1.5]

//This is the fallback LDraw content for above PATH configuration.

// Do not edit, any changes will be lost upon regeneration.

// The path is approx 242.34 mm (605.85) and exists out of 202 segments.

//Some general hints about the document.

UNOFFICIAL PART

ROTATION CENTER 0 0 0 1 "Custom" 

ROTATION CONFIG 0 0

BFC CERTIFY CCW

//Some of this content has been generated from other LDraw files, many thanks to all involved.

// Credits for "ldcLQRopeSeg.dat":

//  Author: LDCad

//Segments

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0 38.6104 -14.416 0 1.43445 1.16935 0 -0.438588 3.82447 0 0 0 1.5 4-4cyli.dat

0 37.4061 -17.1635 0 1.38379 1.54344 0 -0.578898 3.68941 0 0 0 1.5 4-4cyli.dat

0 35.9339 -19.7776 0 1.3185 1.90693 0 -0.715235 3.51533 0 0 0 1.5 4-4cyli.dat

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0

**Magnus Forsberg** · 2016-08-08, 14:40

You can't call for "string.dat" if your part is called "string.ldr"

I suggest renaming it .... Wink

Jetro de Château · 2016-08-08, 21:18

(2016-08-08, 14:40)Magnus Forsberg Wrote: You can't call for "string.dat" if your part is called "string.ldr"

I suggest renaming it ....

True enough Big Grin

The trouble is that no matter what I call it I can't find it with LDcad to even include it in a file.
I have also tried (and double checked) both .dat and .ldr as endings (both on the file and in the LPub3D command) in order to get it to turn up in the PLI as a substitute part, but it simply won't.
Probably missing something terribly obvious again...

**Roland Melkert** · 2016-08-08, 21:43

(2016-08-08, 21:18)Jetro de Château Wrote: The trouble is that no matter what I call it I can't find it with LDcad to even include it in a file.
I have also tried (and double checked) both .dat and .ldr as endings (both on the file and in the LPub3D command) in order to get it to turn up in the PLI as a substitute part, but it simply won't.
Probably missing something terribly obvious again...

It doesn't have to be .dat just place it in a (unoffical) parts location. Just be sure that location is included in the search parts as a library location.

After that the part should be available in the part bin but it might be 'hidden' due to the bin group filtering rules. It should be in the generic search group though just be sure it is set to include unoffical parts.

To see it in e.g. the technic misc parts group, add a technic category meta to the file or change its description in something like "Technic string"

Jetro de Château · 2016-08-08, 21:58

(2016-08-08, 21:43)Roland Melkert Wrote:
(2016-08-08, 21:18)Jetro de Château Wrote: The trouble is that no matter what I call it I can't find it with LDcad to even include it in a file.
I have also tried (and double checked) both .dat and .ldr as endings (both on the file and in the LPub3D command) in order to get it to turn up in the PLI as a substitute part, but it simply won't.
Probably missing something terribly obvious again...

It doesn't have to be .dat just place it in a (unoffical) parts location. Just be sure that location is included in the search parts as a library location.

After that the part should be available in the part bin but it might be 'hidden' due to the bin group filtering rules. It should be in the generic search group though just be sure it is set to include unoffical parts.

To see it in e.g. the technic misc parts group, add a technic category meta to the file or change its description in something like "Technic string"

Thanks. It turns out my file had no category meta at the start of the file. Simply adding the line "0 string" at the top allowed me to find it in LDCad.
Now my file starts with :

Code:
0 string

0 Name: string.ldr

I used the string generator in LDCad to create a string in a model.
The PLI image is ugly as it shows the string in exactly the same shape as in the model (image attached)
But if I use the following substitution, no string appears in the PLI Sad

Code:
!LPUB PLI BEGIN SUB string.ldr 0

0 -100 -32 -35 0 -1 0 0 0 1 -1 0 0 ropelq-1.ldr

!LPUB PLI END

**Roland Melkert** · 2016-08-09, 18:59

Are you sure LPub has access to the placeholder part, as I believe LPub uses different search paths then its renderer, e.g. LDView, so that might be somewhat confusing.

Jetro de Château · 2016-08-09, 19:43

The only place I have (manually) added the WeDo 2.0 electronic parts is my Unofficial folder. Those parts turn up just fine in LPub3D instructions. Since I added the string.ldr file in the same way I expected it to turn up fine as well.
I have not been able to find any other path settings that I could edit.

**Magnus Forsberg** · 2016-08-10, 10:33

Are you sure of where that file is saved?

I had a similar issue some time ago. My part was present in one program, but missing in another.
The "missing" file was saved in the VirtualStore. "C:\Users\username\AppData\Local\VirtualStore\..."

@ Roland
If I today look in that virtual folder, I find a lot of files belonging to LDCad. Both 1.5 and 1.6alfa.
Am I doing anything wrong when I install LDCad, or is it due to the "magic of Microsoft"?
Is it due to the AIOI ? If I remember it correctly, it was the AIOI that placed it in the Program Files-folder.

I'm no good at this, but it looks to me as if all files that LDCad "writes", are saved in the virtual store.
The only exception seams to be the models I make, but they are saved were I choose to save them. As they should be.

How should I make a "correct" install of LDCad? What files should be in that folder, and where do I place it?

**Roland Melkert** · 2016-08-10, 15:50

(2016-08-10, 10:33)Magnus Forsberg Wrote: Are you sure of where that file is saved?

I had a similar issue some time ago. My part was present in one program, but missing in another.
The "missing" file was saved in the VirtualStore. "C:\Users\username\AppData\Local\VirtualStore\..."

@ Roland
If I today look in that virtual folder, I find a lot of files belonging to LDCad. Both 1.5 and 1.6alfa.
Am I doing anything wrong when I install LDCad, or is it due to the "magic of Microsoft"?
Is it due to the AIOI ? If I remember it correctly, it was the AIOI that placed it in the Program Files-folder.

I'm no good at this, but it looks to me as if all files that LDCad "writes", are saved in the virtual store.
The only exception seams to be the models I make, but they are saved were I choose to save them. As they should be.

How should I make a "correct" install of LDCad? What files should be in that folder, and where do I place it?

Did you unpack the archive version of LDCad in program files ? If so that would explain it writing stuff to the virtual store.

The setup/AIOI version of LDCad should never write files to virtual store unless you have the whole LDraw library in program files and are writing LDraw files into it using LDCad.

**Magnus Forsberg** · 2016-08-10, 22:18

(2016-08-10, 15:50)Roland Melkert Wrote: Did you unpack the archive version of LDCad in program files ?

Yes, I know that I unpacked 1.6 in a new folder, next to the one created by the AIOI for 1.5. I'll have to correct that.
But most of the file in the virtual store belongs to LDCad 1.5

In the same virtual store I also have some files I do belive have been created after I ran the AIOI.
LdSculpt have placed an ini-file there
MlCad have placed a MLCAD.cfg and, I think, a parts.lst there.

DatHeader have placed category.txt and ldconfig.ldr there.

@Willy
Where do the AIOI place LDCad ? The tutorial isn't clear on that.
How many of the apps that the AIOI installs, wants to write in the Program Files-folder?
Why are some apps placed in the user-folder and some in the Program Files-folder?

**Jaco van der Molen** · 2016-08-11, 8:41

I did something like this lately for a model I've been working on.

.png

Naamloos-1.png (Size: 82.39 KB / Downloads: 114)

Jetro de Château · 2016-08-22, 21:01

(2016-08-11, 8:41)Jaco van der Molen Wrote: I did something like this lately for a model I've been working on.

that looks great - it's exactly what I was aiming at.
How did you do that?

**Jaco van der Molen** · 2016-09-14, 7:13

Sorry for my late reply Jetro, my subscriptions to posts seem a bit broken here and there so I don't see new replies...
But here is how:

The curled string part in the PLI is a submodel.
For the string part in the instructions I made some variations depending on the stage the building is in.
Then I substitute the string part in the model by the part I use for the PLI using !LPUB PLI BEGIN SUB.
I'll try to post an example you may download and use.

Jetro de Château · 2016-09-15, 20:53

Thanks Jaco.

I used the same "trick" as referenced above, but couldn't get the part to show up. Maybe your part has a different internal structure?
Also, where did you save the part? Did you have to do anything special to make it show up?

**Jaco van der Molen** · 2016-09-16, 5:30

The parts are just strings made with LDCad.
One for the model, one for the PLI.
Both parts are in the MPD of the model, nothing special.
I really must finish the example, then I think it will be clear. Hope to do that today.

**Jaco van der Molen** · 2016-09-16, 8:40

Hi Jetro and others who might be interested,

Please read my tutorial on substituting parts like strings here:
https://sites.google.com/site/workingwit...ible-parts

For other parts like hinges (parts that are made from more than one actual part) see here:
https://sites.google.com/site/workingwit...ring-parts

Enjoy!

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