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21st Jan 2022, 10:52 PM #1Diamond Member
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Yet another method of DIYing spur gears
Quite clever, but I'm thinking its only suitable for low speed gears, lathe change gears etc.
https://www.youtube.com/watch?v=eC-OctJoWv4
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21st Jan 2022, 11:20 PM #2
Yes
Been watching his Utube stuff for some time, he certainly likes his trig. calculations
That is a clever idea but it is a rather slow and tedious method.
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22nd Jan 2022, 10:34 AM #3Most Valued Member
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It's thinking outside the square which I like!
True, it's slow but it's an option for sure.
Simon
Sent from a galaxy far far awayGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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22nd Jan 2022, 10:51 AM #4Diamond Member
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Sandvik came out with a tooling and software package for doing this on 5axis mill/turn lathes about 5 years ago, they called it invomilling.
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22nd Jan 2022, 09:11 PM #5Diamond Member
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5 axis? Blimey! Seems like total overkill.
I guess you need that for milling helical/herringbone/hypoid ?
1) On a CNC lathe though, just a milling head should be able to make any gear shape?
2) For spur gears, you only need appropriate CAD modelling, and 2 axis CNC mill?
(or a laser/water cutter)
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22nd Jan 2022, 10:49 PM #6Gear expert in training
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- Aug 2008
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- Melbourne
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Video from 10 years ago https://www.youtube.com/watch?v=_LYaMqaUpqw
It's also far better than the home hack method because it actually interpolates a proper involute around the C axis (or A axis depending on the machine) instead of approximating it with just straight cuts. Only 4 axes are required for spurs, 5 for helicals.Gear cutting specialists and general engineers www.hardmanbros.com.au
Fine pitch gear cutting from 0.1 Module www.rigear.com.au
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22nd Jan 2022, 11:46 PM #7Pink 10EE owner
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- Aug 2008
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- near Rockhampton
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Gearotic will spit out the code for a CNC mill but uses an end mill to cut the gears like this. It also does a lot of different types of gears.
It seems a perfectly satisfactory method to cut gears for general use.Gold, the colour of choice for the discerning person.
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