topic Re: Convert dwg to stl in AutoCAD Forum

Convert dwg to stl

Anonymous — Fri, 01 Mar 2019 22:03:58 GMT

Hello,

I draw simple FCC lattice with different bar dimensions. The overall size is 4 X 4 X 6 and it has supports as well. Here I'm attaching the pdf file as well for better understanding of the drawing.

When I'm trying to convert the drawing into stl file, the whole structure is not converting, just few bars have appeared on the stl file. Here i'm also attaching the stl file for better understanding.

Can you guys please suggest me anything how to fix this problem?

Thank you.

https://drive.google.com/open?id=1nYYe07OzKYdWgoYHckg28kehtcZZKuC-

https://drive.google.com/open?id=1XGkcEydhkw_DPfnaV_49SBPEJoPwl0BI

Re: Convert dwg to stl

natasha.l — Sat, 02 Mar 2019 00:09:31 GMT

Hello @Anonymous,

Your objects are receiving a Boolean operation on solid.... error. This usually means they are not properly Unioned, Merged, Intersected etc. You have over 1000 individual objects, look for gaps & try to reduce the amount of objects by using your 3D tools.

My suggestion is to take a few objects & make it a single object, using your 3d tools.

*Probably a good idea to make the truss like box a single object & copy.

Also, try the cleaning and checking 3D Solids by using SOLIDEDIT.

I hope it make sense...

Please "Accept Solution" if a reply or replies have helped resolve the issue or answered your question, to help others in the community.

Re: Convert dwg to stl

Alfred.NESWADBA — Sat, 02 Mar 2019 10:35:56 GMT

Hi,

You first need to run _UNION to create one solid object before exporting it to STL.

Otherwise the STL would have a lot of geometry inside other objects which results in a bad 3D-printed structure.

I agree with @natasha.l that there exist an issue with your objects getting a model-error when running _UNION with all objects together, but this can be avoided sometimes if you do not use all objects in one step, instead use just some parts, then the next ones, and at the end all together. In your case I would do that with one of your rows, if that is unified then distribute this finished part for as many rows you need.

BTW: may I ask which 3D-printer you are using to get that part produced?

With the needed support-structure I would have troubles getting this done (in a good quality, well, I don't have a dual extruder which might help here a lot 😉 ).

Good luck, - alfred -

Re: Convert dwg to stl

Anonymous — Sun, 03 Mar 2019 00:03:13 GMT

Thank you so much.

Re: Convert dwg to stl

Anonymous — Sun, 03 Mar 2019 00:04:40 GMT

Thank you so much.

I am actually using formlab printers for that. Initially I had some problems as well. But then I changed the printing style and it worked.

Again thank you for your help.

Re: Convert dwg to stl

natasha.l — Thu, 07 Mar 2019 00:28:29 GMT

Hello @Anonymous,

Anytime. So glad we could help you!