DIY rotary axis

[phil_o]

Has anyone put together a shopping list of parts necessary to build a rotary axis, including some instructions?
I know there are web sites for building CNC routers. I thought there might be resources for rotary axis.

Phil

[tlempicke]

I did that a while back and it worked out pretty nicely. Here is a link to the thread
http://www.talkshopbot.com/forum/sho...ng-pretty-good

[Burkhardt]

I bought a harmonic drive knock-off several years ago and it works fine. No shopping list but similar to this one with 1:50 reduction. For larger diameters >3" I think this is preferable to the belt drives. For small diameters like pen work the lower gear reduction of the belt drive is surely enough.

Only modification was installing a Oneway 4-jaw "Talon" wood lathe chuck and mounting the gearbox on plates that can be installed/removed from my t-slot table quickly. I know some of the eBay sellers offer the complete solution already with a larger 4-jaw chuck (adapting this after the fact was difficult).

[phil_o]

I did that a while back and it worked out pretty nicely. Here is a link to the thread
http://www.talkshopbot.com/forum/sho...ng-pretty-good

What did you have to do to connect it the the Shopbot?

Phil