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Generate drawing from Solvespace step (by yugami)
A bit outside the software proper, but I'm wondering if anyone has used this particular workflow.

I need to generate some standard drawings from the solid models I've generated for RFQ's.

I'm wondering what software to use. I'm looking at Freecad now but if anyone has any pointers that would be great.

Specifically 2 of the parts are hollow and one of them has 2 ID's so I need to ensure its called out properly.
Wed Dec 9 2015, 23:11:59
(no subject) (by Jonathan Westhues)
It's not ideal, but you might be able to generate them within SolveSpace. You can create a sketch with the drawing frame, and import the frame and part to an "assembly", possibly with the part imported multiple times in multiple orientations for multiple views. Then place dimensions after checking "treat all dimensions as reference", and export with desired scale.
Thu Dec 10 2015, 05:06:03
(no subject) (by yugami)
That may be a good solution, I haven't played with the 2D export option.

Freecad's drawing plugin seems to be as complete as all there other stuff, not really ready yet.
Thu Dec 10 2015, 11:05:07
(no subject) (by whitequark)
@yugami, what I do is export DXF and then manually edit it in LibreCAD, add dimensions, notes, etc. Currently SolveSpace's DXF export is a bit crappy (eg a circle at an angle is exported piecewise and not as bezier) but right now we are improving it, you can expect a new build very soon.
Fri Dec 25 2015, 05:59:35
(no subject) (by EvilSpirit)
Thu Jan 21 2016, 01:54:16
(no subject) (by yugami)
If we're looking for a DXF export option that would be awesome, showing hidden lines with dashed lines.

I have a lot of hollow components, some with 2 different ID's which need to be defined at specific depths.
Thu Jan 21 2016, 11:46:11
(no subject) (by whitequark)
@yugami, that would be good and it's a longstanding goal of mine. Unfortunately, the occlusion check is nontrivial to implement, especially with the current NURBS backend.
Fri Jan 22 2016, 03:02:14
(no subject) (by Jonathan Westhues)
For what it's worth, even the expensive commercial CAD tools seem to mostly (entirely?) do hidden line removal on PWL segments, not curves--since that's usually intended as human-readable output, there's less need for an exact representation.

The current hidden line remover could be modified to retain the removed segments, and e.g. output them with different style. Or as a hack in the interim, you could also output wireframe and hidden-line-removed versions of the same model, and then overlay them in some other program.
Fri Jan 22 2016, 05:32:54
(no subject) (by yugami)
Heres a shot of what you can get with Freecad with their drawing bench (theres a 3rd pary plugin that makes it actually do things like show measurements too, you would think that and export to dxf would be a priority for drawings)
Fri Jan 22 2016, 16:12:45, download attachment plunger-body.png
(no subject) (by EvilSpirit)
There is no problem to show hidden lines. I think it's likely about to change sign test inside bsp bypass.
Fri Jan 22 2016, 22:21:21
(no subject) (by whitequark)
@Jonathan, yes, a distinct line style is exactly how I wanted to implement it--but first, support for stippled lines is required, and probably the new DXF backend should be merged too. We'll get there eventually.

The reason I wanted to go for NURBS is to keep arcs and beziers intact in the DXF output instead of linearizing them. This allows e.g. to open the files in LibreCAD and easily annotate them... but it seems that the implementation complexity does not justify this feature.
Sat Jan 23 2016, 02:11:54
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