Given OpenSCAD is producing the polyhedron with a lot of vertex,
That OpenSCAD Hull and Minkowsky get translated as a Mesh.
Wondering if there is any mileage in having a facility to select such objects and convert to Nurbs, especially
as we now have a Surfaces Module. Maybe such a facility already exists
Would be interested in @microelly2 comments
Help on drawing a worm gear with its involute gear
Forum rules
and Helpful information
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help
Also, be nice to others! Read the FreeCAD code of conduct!
Also, be nice to others! Read the FreeCAD code of conduct!
-
- Veteran
- Posts: 2764
- Joined: Mon Feb 27, 2012 5:31 pm
-
- Veteran
- Posts: 2764
- Joined: Mon Feb 27, 2012 5:31 pm
Re: Help on drawing a worm gear with its involute gear
Mesh and Polyhderon to Surface
==========================
There seems to be software to do this but so far have not found any open source offerings.
Commercial programs that seem to have this function
==========================
There seems to be software to do this but so far have not found any open source offerings.
Commercial programs that seem to have this function
- Rhino ( Mesh2Surface plugin )
- Grasshopper https://www.grasshopper3d.com/forum/top ... to-surface
- TrueGrid http://www.truegrid.com/geometry.html
-
- Veteran
- Posts: 2764
- Joined: Mon Feb 27, 2012 5:31 pm
Re: Help on drawing a worm gear with its involute gear
You need to tell the FreeCAD OpenSCAD workbench where to find the OpenSCAD executable.foadsf wrote: ↑Tue Sep 24, 2019 11:26 amqurn wrote: ↑Wed Dec 26, 2018 2:24 pm I had the same question, came across this thread and like to share a good solution i found on the way.
Here is a parametric globoid worm gear drive for OpenSCAD.
https://www.thingiverse.com/thing:2776688
It's nicely written. It explains the way to get geometry in the gif.
To import it in FreeCAD OpenSCAD Workbench paste the content of the 3 .scad files and adapt the parameters.
Pros: easy, fast, precise, good documented
Cons: won't be a native FreeCAD object.
Unfortunately, I can't import the OpenSCAD's .scad files into FreeCAD. I have explained the issue here in details.
my environment is:
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16131 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 3129ae4296e40ed20e7b3d460b86e6969acbe1c3
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
-
- Veteran
- Posts: 2764
- Joined: Mon Feb 27, 2012 5:31 pm
Re: Help on drawing a worm gear with its involute gear
You need to tell the FreeCAD OpenSCAD workbench where to find the OpenSCAD executable in the OpenSCAD workbench preferences.keithsloan52 wrote: ↑Sun Sep 05, 2021 3:57 pmfoadsf wrote: ↑Tue Sep 24, 2019 11:26 amqurn wrote: ↑Wed Dec 26, 2018 2:24 pm I had the same question, came across this thread and like to share a good solution i found on the way.
Here is a parametric globoid worm gear drive for OpenSCAD.
https://www.thingiverse.com/thing:2776688
It's nicely written. It explains the way to get geometry in the gif.
To import it in FreeCAD OpenSCAD Workbench paste the content of the 3 .scad files and adapt the parameters.
Pros: easy, fast, precise, good documented
Cons: won't be a native FreeCAD object.
Unfortunately, I can't import the OpenSCAD's .scad files into FreeCAD. I have explained the issue here in details.
my environment is:
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16131 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 3129ae4296e40ed20e7b3d460b86e6969acbe1c3
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
- Shalmeneser
- Veteran
- Posts: 9560
- Joined: Wed Dec 23, 2020 12:04 am
- Location: Fr
Re: Help on drawing a worm gear with its involute gear
Please don't put all the posts in your quote, just what is absolutely usefull.
- papyblaise
- Veteran
- Posts: 8002
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: Help on drawing a worm gear with its involute gear
still an old mummy exumed from a time when Fc was V16 or V17
ask your question again on a new post, with more information
ask your question again on a new post, with more information
-
- Veteran
- Posts: 2764
- Joined: Mon Feb 27, 2012 5:31 pm
Re: Help on drawing a worm gear with its involute gear
Loaded globoidworm.scad with FreeCAD Daily, saved to DropBox
https://www.dropbox.com/s/ue76kc8ezn226 ... FCStd?dl=0
Code: Select all
OS: macOS 10.15
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 2021.922.24301 +4188 (Git)
Build type: Release
Branch: LinkDaily
Hash: 3de879c7a2ba7111cc769d98636eb6d43189459d
Python version: 3.9.7
Qt version: 5.12.9
Coin version: 4.0.1
OCC version: 7.5.2
Locale: C/Default (C)
Re: Help on drawing a worm gear with its involute gear
OpenScada from thingiverse - is a best variant. Unfortunately, while I found it, I managed to come up with my own.
https://photos.google.com/photo/AF1QipN ... g5z52Jw5pC
https://demonstrations.wolfram.com/Toro ... icalCoils/
build curve with macro mwganson/Parametric_Curve_FP
and sweep with pipe loft
https://photos.google.com/photo/AF1QipO ... umlRNZsGpG
but have some problem on this way - correct working only with Frenet orientation mode for tooth scetch
https://photos.google.com/photo/AF1QipM ... Ij6zCX-I8_
standard caused this
https://drive.google.com/file/d/1bOhwhQ ... nload_link
https://drive.google.com/file/d/1lfJ66p ... nload_link
https://photos.google.com/photo/AF1QipN ... g5z52Jw5pC
https://demonstrations.wolfram.com/Toro ... icalCoils/
build curve with macro mwganson/Parametric_Curve_FP
and sweep with pipe loft
https://photos.google.com/photo/AF1QipO ... umlRNZsGpG
but have some problem on this way - correct working only with Frenet orientation mode for tooth scetch
https://photos.google.com/photo/AF1QipM ... Ij6zCX-I8_
standard caused this
https://drive.google.com/file/d/1bOhwhQ ... nload_link
https://drive.google.com/file/d/1lfJ66p ... nload_link