hello.
I am new to CAD and trying to teach myself the art of CAD.
Can somebody Demo how to construct a two pulley timing belt drive with changeable Parametric settings. How to construct the pulley and the belt.
Timing Belt drive.
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- thomas-neemann
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Re: Timing Belt drive.
Here are examples for determining center distances
https://www.youtube.com/watch?v=gq8PrKt_1VY
https://www.youtube.com/watch?v=mo_1YBdl25w
Re: Timing Belt drive.
This is an ambitious project for someone new to CAD and FreeCAD in particular especially if you want it to be truly parametric. This is a similar example with what you are faced: https://forum.freecadweb.org/viewtopic. ... 04#p143004
There is a file you can download with a spreadsheet that you can probably modify for a timing belt. If you know the center distance then you will not have to iterate.
I would suggest you start with more basic tasks first, but if you want to attempt a timing belt then you need the following:
1. Center distance of the pulleys
2. Belt path dimensions and number of teeth
3. A working knowledge of the Part or PartDesign workbench, Sketcher, and the Draft workbench Path Array.
4. The FCGear workbench includes a timing pulley feature that you can probably modify for your application.
5. Spreadsheet workbench for all the calculations if 1 & 2 are unknown.
6. Familiarity with Expressions for the sketch dimensions, pulley and path array properties, etc.
So, as you can see it is not a simple project. If you want to create one specific configuration as a start then we can coach you through the process if you do your homework.
"It is a poor workman who blames his tools..."
- papyblaise
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Re: Timing Belt drive.
I have a trick to measure a length like this: I use the Arch workshop, mount a 0.1mm thick wall and it gives me the length of this wall
I don't know of any other tool to give this length
In the catalogs of sellers there is a formula for the calculation
For the drawing, you did not specify: a flat belt, a V-belt, a toothed belt
I don't know of any other tool to give this length
In the catalogs of sellers there is a formula for the calculation
For the drawing, you did not specify: a flat belt, a V-belt, a toothed belt
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- belt.FCStd
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Re: Timing Belt drive.
Clever indeed.papyblaise wrote: ↑Tue Aug 02, 2022 4:30 pm I have a trick to measure a length like this: I use the Arch workshop, mount a 0.1mm thick wall and it gives me the length of this wall
Thanks Helmut. I had completely forgotten this post. It is more applicable for Coljay than the one I referenced.
"It is a poor workman who blames his tools..."
- Shalmeneser
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Re: Timing Belt drive.
Part_CheckGeometry can give the length of a sketch.