Does anyone know where to get a broach for the NEO? It would be nice to not have to rely on only setscrews or friction if possible.
The Neo uses an 8mm shaft with a 2mm keyway, which is a standard size. Broaches for this should be readily available, such as McMaster part 8805A11
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We have the one from McMaster. Super useful and you don’t need nearly as large a press as a hex broach.
Thanks. Is there a collar/guide that you have to use with this one like there are for some of the larger brooches?
Yes, as far as I’m aware all key way broaches need bushings.
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That’s what I was thinking. Do you have a link to a bushing that will work?
It’s McMaster all the way down. 8805A11 and 8804A71
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FYI, for those special weird situations where you can’t broach it, you can use a 2mm end mill and go in the end of the shaft to make a short keyway with a blind hole.
For -really- nutty things, you can use a 2mm slitting saw to make a slot in the side of a hex shaft to get a long keyway on a shaft that doesn’t have a through hole. You need a custom key that is taller to avoid having it fall out. I had to make this because my kiddos painted themselves into a corner on an intake/shooter.
Broaches are the best way, of course!
BTW, you CAN make a Kraken spline hole on a long shaft. I don’t reccomend it, though. Don’t put it on a robot, especially if all you have is churro stock on hand
Drill in the motor end with 7mm. Drill in the other end with an 8mm. Leave NO MORE than 3/4" of 7mm!!! Seriously! Broach part way, tap out backwards. Repeat 3 times. Curse.
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this is seriously impressive. We just 3D printed a hex adapter from WCP instead, and I was surprised how well PLA held up but this idea takes the jank to a whole new level. I love it!
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