Drawing 100 tooth HTD 3M timing pulley
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Drawing 100 tooth HTD 3M timing pulley
Hi all,
I have to draw a 100 tooth HTD 3M timing pulley and export it in SVG format (I just need a top view).
I found tooth profile characteristics here : https://www.solidrop.net/photo-7/cnc-ma ... ulleys.jpg
Is there a tip to draw it with FreeCAD ?
I am able to draw one teeth, but I don't know how to proceed after that.
What should be the correct way to do that ?
Thanks !
I have to draw a 100 tooth HTD 3M timing pulley and export it in SVG format (I just need a top view).
I found tooth profile characteristics here : https://www.solidrop.net/photo-7/cnc-ma ... ulleys.jpg
Is there a tip to draw it with FreeCAD ?
I am able to draw one teeth, but I don't know how to proceed after that.
What should be the correct way to do that ?
Thanks !
- DeepSOIC
- Veteran
- Posts: 7896
- Joined: Fri Aug 29, 2014 12:45 am
- Location: used to be Saint-Petersburg, Russia
Re: Drawing 100 tooth HTD 3M timing pulley
Draft Array (change it into polar using properties). Then, you can try exporting it as is. If you want to extrude it, you'll need to stitch it together. Maybe Fuse property of draft array will help, but if not, Part JoinConnect can.
Re: Drawing 100 tooth HTD 3M timing pulley
Thanks for your answer. But I know how to draw the first teeth in a sketch with "Part design". I don't know how to draw it with Draft toolbox. Is is possible to add constraints ?
Re: Drawing 100 tooth HTD 3M timing pulley
I would sketch the space between the teeth and cut it from the pulley. Then you can use PartDesign/PolarPattern. See the example below:
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6712 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: da2d364457257a7a8c6fb2137cea12c45becd71a
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
"It is a poor workman who blames his tools..."
Re: Drawing 100 tooth HTD 3M timing pulley
Thanks,
that is a good idea, but I just need a top view in SVG format tu use it with a laser cutter or a CNC.
Perhaps FreeCAD is not the right tool to do this ?
that is a good idea, but I just need a top view in SVG format tu use it with a laser cutter or a CNC.
Perhaps FreeCAD is not the right tool to do this ?
- DeepSOIC
- Veteran
- Posts: 7896
- Joined: Fri Aug 29, 2014 12:45 am
- Location: used to be Saint-Petersburg, Russia
Re: Drawing 100 tooth HTD 3M timing pulley
FreeCAD IS the right tool for the job!
You can extract the outline for an svg with quite a few methods, such as Draft Downgrade, or maybe Draft Shape2DView, or Part Common with a face.
It is not a problem, you can mix tools from different workbenches. Sure, there are limitations, but many workbenches can be combined to achieve the result.
My tutorial for Lattice2 add-on workbench might be helpful:
https://github.com/DeepSOIC/Lattice2/wi ... t-Tutorial
Re: Drawing 100 tooth HTD 3M timing pulley
Use the Drawing workbench to create the view then you can export as SVG file:
- Attachments
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- Capture2.JPG (82.05 KiB) Viewed 5488 times
"It is a poor workman who blames his tools..."
Re: Drawing 100 tooth HTD 3M timing pulley
Thanks to all !
I did the job !
I did the job !
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- Posts: 243
- Joined: Wed May 31, 2017 11:49 pm
Re: Drawing 100 tooth HTD 3M timing pulley
Just curious... Your opening comment & link suggests you want a HTD-M tooth. That is different than the one in the follow-up comments (radius'd bottom Versus rectangular...).
According to the dim's in the link, this is what the tooth looks like...
According to the dim's in the link, this is what the tooth looks like...
MAC OSX Sierra
3D Parts & Links (made using FreeCad and Solidworks): https://www.thingiverse.com/Still_Breathing/designs
Android App & Links: https://play.google.com/store/apps/deta ... .bestknots
3D Parts & Links (made using FreeCad and Solidworks): https://www.thingiverse.com/Still_Breathing/designs
Android App & Links: https://play.google.com/store/apps/deta ... .bestknots
Re: Drawing 100 tooth HTD 3M timing pulley
Is someone can tell me why 2 tooth are not cutted ?
Thanks