Rotating Ballnut - design ideas

[EddyCurrent]

I know you had the housing made from several pieces originally but they looked a bit complex so is it feasible to make the rectangular housing from 4 or 5 just rectangular pieces bolted together with the motor mounting plate being one side ?

[Jonathan]

Is it feasible to make the rectangular housing from 4 or 5 pieces bolted together with the motor mounting plate being one side ?

That's pretty much how I did it earlier, see posts #50 and #61. One thing to bear in mind is it's harder to maintain the accuracy of the bearing mounts if they're separate parts.

[EddyCurrent]

Damn, the very pages I must has skipped
Yes I realise about alignment, it just seemed easier for someone without a decent machine shop.

[Boyan Silyavski]

Damn, the very pages I must has skipped
Yes I realise about alignment, it just seemed easier for someone without a decent machine shop.

Actually if Jonathan or sb from the forum doesn't have the time to make the parts for me, i have to go to my local guy, who is way off with the 0.01mm, he works in the 0.5 zone definition
So i would update the drawings with extra drawing , made from OD100 and OD80 round bar. That way it would be more easy for him not to make a mistake an find the center. Further benefit will be that it could be mounted in cut in 2 pieces 85mm or 100mm spindle mount/not perfect but will work/ . anyway, i will mount it directly on its face, not using the bottom holes.

[paulus.v]

One grubscrew is enough for clamping the pulley to the motor shaft or should I use two at 90 degrees? Are there other simple methods that I could use to be able to change the pulley (ratio) more easily?


Here are my machined parts, still not assembled and tested:

[GEOFFREY]

Machining looks very nice. G.