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import dwg/dxf from an external library (by eKtor)
hello

to make assembly under solvespace it's practical. to have the screws already drawn, it's even better.
combining the two is heaven :)

in this research i found a 3D CAD library at hpc.
The problem is that all the dxf or dwg files I export from this software are incompatible with solvespace.

Would you have a solution? 
Thanks you


link :https://hpc.partcommunity.com/...come&cwid=0857&his=%2F
Wed Aug 10 2022, 10:22:52
(no subject) (by Andrew)
You could create a Solvespace library,, using the Heliix extrude. Save as is you friend for doing his, as you can edit a base file to create screws of varying lengths and pitches. You can build up the library as you need new screws.

A ring of equal length lines in a circle can be used to create hexes.
Wed Aug 10 2022, 10:45:46
(no subject) (by eKtor)
what I wanted was to import the dxf or dwg from an existing library.
(more than 10k pieces).
drawing them would take too much time. and they will not be as accurate as the official ones.
Wed Aug 10 2022, 15:19:40
(no subject) (by ruevs)
Would you export and attach an example (I don't want another one time use account)? For example this simple one https://hpc.partcommunity.com/...tuds%2Fplm_c.prj&cwid=0857

That said the dxf import can not create solids even if it accepted the files. If STL is available that is an option - but only mesh.
Thu Aug 11 2022, 01:56:31
(no subject) (by Andrew)
I have been playing at creating bolts. I found that while a Helix would generate a length of thread, any attempt to clean up the ends cause naked edge problems. I then tried the alternative of subtracting a helix from a rod, this produced a clean model. Adding a head required "Force NURBS surfaces to mesh", bur then the model was clean.

I attach an example, but note thread and head dimensions may no be correctly specified, but it may be useful for someone. Also, to vary the length of the thread, adjust the length of the first extrude to the desiired length. A threaded hole can be created by first creating a minor diameter hole, and then a helix to cut the threads. Note in both cases, the thread model should be slightly less than 1 pitch in height, so as the helix does not touch itself, and the thread started outside the solid.

For threaded holes, the best solution I could come up with is to use an internally threaded rod, and union it with a hole of slightly smaller diameter. Also, while playing with this I found that there is a sensitivity to helix length, in the example, a 7 mm helix length has no problems, but a 7.5mm length causes naked edges.

Attached is a zip file with a test bolt and test nut. which may help people who need threaded components.
Fri Aug 12 2022, 19:00:38, download attachment threads.zip
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