GT2, GT3 and GT5 Timing Gear Creator

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iplayfast
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by iplayfast »

Do you have a git location for this macro?
mario52
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by mario52 »

Maybe you need a special feature, go into Macros_recipes and Code_snippets, Topological_data_scripting.
My macros on Gist.github here complete macros Wiki and forum.
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Kunda1
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by Kunda1 »

Any idea if this is appropriate in the FreeCAD Gears workbench ?
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galou_breizh
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by galou_breizh »

Though I think this macro would be more appropriate in the Gear Workbench it is now part of the official repository: https://github.com/FreeCAD/FreeCAD-macr ... ar.FCMacro.

Gaël
steve123
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by steve123 »

Would it be possible to add a feature to the macro to generate a timing belt as well? That would be really handy.
galou_breizh
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by galou_breizh »

Yes it's possible, please send a pull-request when you're done!

Gaël
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looo
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by looo »

galou_breizh wrote: Sun Dec 29, 2019 9:09 pm Though I think this macro would be more appropriate in the Gear Workbench it is now part of the official repository: https://github.com/FreeCAD/FreeCAD-macr ... ar.FCMacro.

Gaël
Is it ok to copy the source over to the gear-worbench? I would like to give it a try
galou_breizh
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by galou_breizh »

I'm not the original author but according to the license LGPL-2.0, there's no issue.
cberg75
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by cberg75 »

Would it be possible to extend it to GT2.5 pulleys? Not very common, but some 3D printer use it.
I had a look at the code, and it seems reasonable, but I do not know where to find all the GT2.5 parameters (u, h, H, r0, r1 etc)
A picture with the parameters on it would be useful.
Thanks
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looo
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Re: GT2, GT3 and GT5 Timing Gear Creator

Post by looo »

cberg75 wrote: Wed Mar 04, 2020 9:37 am Would it be possible to extend it to GT2.5 pulleys? Not very common, but some 3D printer use it.
I had a look at the code, and it seems reasonable, but I do not know where to find all the GT2.5 parameters (u, h, H, r0, r1 etc)
A picture with the parameters on it would be useful.
Thanks
Do you have a docmunet which describes the gear-profile?

Also, I wonder if the result I get from the Timing Gear Creator is correct. It seems like the arcs are not tangential constrained:
Bildschirmfoto von 2020-04-07 21-35-20.png
Bildschirmfoto von 2020-04-07 21-35-20.png (3.8 KiB) Viewed 1900 times
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