Thickness Ruby to make shell?

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Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 5:36 pm

I've been doing a lot of 3d printing lately. Mostly the volumes have been a modification of something or simple volume.
I understand that in order to get the object to print properly it needs to have a completely closed volume.
The question I have for you guys after searching and not finding a solution...
Is there a ruby out there that will create an offset or "shell". I have a car shell that I am working on that I want to print as a 1/6" thick lightweight shell to attach to something else...similar to an RC car shell. The problem is that I have created the shape of the shell I want, but the programs won't simply print along a plane with zero thickness.

Any ideas?

Thanks
antoine
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Re: Thickness Ruby to make shell?

Postby Rich O Brien » Wed Feb 27, 2013 5:47 pm

Fredo's Joint Push Pull?
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 6:18 pm

Rich O Brien wrote:Fredo's Joint Push Pull?


I have that installed...will try it at lunch...initial attempt crashed the program, but maybe if I am more selective it might work.

Thanks Rich
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Re: Thickness Ruby to make shell?

Postby dukejazz » Wed Feb 27, 2013 6:20 pm

My plugin will make a shell

[Plugin] scaleGroupFloat_dj Ver 1.6.5 Feb 15, 2013 by dukejazz » May 11th, 2012, 3:36 pm

scaleGroupFloat_dj Ver 1.6.5
Copyright Feb 15, 2013
DukeJazz: by James Cochran
has a tool call
cumulativeScaler_dj (now dose xyz x y z scale,step and rotation)
pic_0127.jpg

viewtopic.php?f=323&t=45254&start=15
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Re: Thickness Ruby to make shell?

Postby cotty » Wed Feb 27, 2013 7:41 pm

And there is Thomthoms shell plugin.
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:08 pm

dukejazz wrote:My plugin will make a shell

[Plugin] scaleGroupFloat_dj Ver 1.6.5 Feb 15, 2013 by dukejazz » May 11th, 2012, 3:36 pm

scaleGroupFloat_dj Ver 1.6.5
Copyright Feb 15, 2013
DukeJazz: by James Cochran
has a tool call
cumulativeScaler_dj (now dose xyz x y z scale,step and rotation)
pic_0127.jpg

viewtopic.php?f=323&t=45254&start=15


I can't figure it out...all I have been able to do is an offset.
Looking to basically create a 1/16" shell.

Thanks
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:08 pm

cotty wrote:And there is Thomthoms shell plugin.


Looks perfect...but can't get it to do anything. :(
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Re: Thickness Ruby to make shell?

Postby jeff hammond » Wed Feb 27, 2013 8:26 pm

marvins_dad wrote:
Rich O Brien wrote:Fredo's Joint Push Pull?


I have that installed...will try it at lunch...initial attempt crashed the program, but maybe if I am more selective it might work.

Thanks Rich

did it crash or appear to hang?
if you're doing a processor intensive operation in sketchup, it may appear as if its not working.. but it is.
(for reference, I once did a jpp operation that took 4 hrs to calculate)
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Re: Thickness Ruby to make shell?

Postby gilles » Wed Feb 27, 2013 8:31 pm

works with groups or components, did you try on raw geometries?
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:38 pm

Jeff Hammond wrote:
marvins_dad wrote:
Rich O Brien wrote:Fredo's Joint Push Pull?


I have that installed...will try it at lunch...initial attempt crashed the program, but maybe if I am more selective it might work.

Thanks Rich

did it crash or appear to hang?
if you're doing a processor intensive operation in sketchup, it may appear as if its not working.. but it is.
(for reference, I once did a jpp operation that took 4 hrs to calculate)


I get a "SketchUp Application has stopped working" dialog box...only options are check online and close or close program. Problem signature:...APPCRASH
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:39 pm

gilles wrote:works with groups or components, did you try on raw geometries?


I was trying with raw geometries...I'll try with a group...are you talking about "Shell"?
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:45 pm

Shell seems to preview when I select a group and I can see the offset and adjust it. When I double click it doesn't stay...when I hit enter nothing happens. When I double click then click outside the group the offset disappears.

What am I doing wrong?
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Re: Thickness Ruby to make shell?

Postby gilles » Wed Feb 27, 2013 8:48 pm

I do.
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Re: Thickness Ruby to make shell?

Postby gilles » Wed Feb 27, 2013 8:50 pm

Adjust the fitness, then Enter, then double click.
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Re: Thickness Ruby to make shell?

Postby marvins_dad » Wed Feb 27, 2013 8:55 pm

gilles wrote:Adjust the fitness, then Enter, then double click.

Okay - I tried on a portion that wasn't as complex and it worked.
Looks like I need to simplify my model a bit (clean it up) and try again.

Thanks!
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Re: Thickness Ruby to make shell?

Postby dukejazz » Thu Feb 28, 2013 2:00 pm

scaleGroupFloat_dj Ver 1.6.5
Copyright Feb 15, 2013
DukeJazz: by James Cochran
I have a tool call cumulativeScaler_dj
it's part of scaleGroupFloat_dj package (doses cumulative xyz, x, y, z, scale,step,move and rotation)
by marvins_dad » Yesterday, 12:08 pm
I can't figure it out...all I have been able to do is an offset.
Looking to basically create a 1/16" shell.

pic_0134.jpg


I figure it for you.

I found a car body on 3d warehouse
pic_0132.jpg


and I work it 1/16 but it's not close yet for a volume

car+body16_dj.skp
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Re: Thickness Ruby to make shell?

Postby dukejazz » Mon Mar 04, 2013 1:41 pm

I rework it and now it's a closed shell volume:

by these steps

1) I started wuth the car body

2) draw with line tool and close the volume
pic_0157.jpg


3) I copy and offset scaled by 1/16 inch as before with scaleGroupFloat_dj
scaleGroupFloat_dj will create an offset call "shell". the settings shown ealier above

4 ) I then vector push-pull the wheels acoss
pic_0158.jpg

5) right click and used context intersect face to model

6) cut away
pic_0159.jpg

and then cut the bottom interial face of the car
pic_0161.jpg


by marvins_dad » February 27th, 2013, 9:36 am
Is there a ruby out there that will create an offset or "shell". I have a car shell... 1/6" thick lightweight ... The problem is ... the programs won't simply print along a plane with zero thickness.

and now marvins
The Answer:
yes- Use scaleGroupFloat_dj.rb
and a vector push-pull tool
(=to SU push-pull then one end exploded face move by the move tool)
by the process above you get this
car+body16_dj.skp
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