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08-11-2017 #1
Could anyone recommend a "Simple 3D Gear design software" please. Would like to generate and machine a couple of bevel gears for 90deg transmission. Not for a strenuous operation, just a mechanical lifter. Looked at Gearotic but that is way over the top. Hopefully open source programme is available.
Any advise appreciated.
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09-11-2017 #2
There's nothing simple about gear design, especially once you get more complicated than a basic spur gear.
Best option would be to find somebody with a copy of gearotic who's willing to produce the code you need, or just buy a couple ready made gears.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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09-11-2017 #3
m-c - Not completely unfamiliar with relatively simple gear design. Just do not want to revise and re-teach myself at this time.
But would like to experiment with a couple of things. This would totally frustrate any third party!
The bevel gear add-in for F360 produces what I want but it is a trade off between graphic presentation and real gear form. But studying this to see if it will suffice in this instance. I need to cut with a vertical axis and radial toolpath, so will not be generically correct in any case. But I will will cut a pair and see. Maybe try printing the same in nylon on a metal core.
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09-11-2017 #4https://emvioeng.com
Machine tools and 3D printing supplies. Expanding constantly.
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09-11-2017 #5
George - That`s not the spirit of it?? - Jigsaw mentality - more fun to do it, than what you end up with.
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09-11-2017 #6
Any decent CAD software has a polar array function, meaning you only need draw one tooth. also it should be possible to get a tooth cross section from somewhere (I haven't looked but feel confident)
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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10-11-2017 #7
I think you'd get away with a standard tooth profile, tilted so it matches the correct cone angle.
I'd have to dig out the gear design/machining book I've got buried somewhere to confirm that though.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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10-11-2017 #8
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10-11-2017 #9
For clarity, I am aiming at a full 3D file to cut conventionally on a 3 axis CNC. With the axis vertical and if practical a radial toolpath.
I believe I am almost there with a bit of caddery-pokery. Makes one very respectful of Art Fernety and his Gearotic software.
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10-11-2017 #10
Out of interest, what kind of size/tooth count are you looking at? Tool choice would be interesting as well - small enough to get into the bottom of the tooth but still giving a decent finish?
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