Rotating Ballnut - design ideas

[mutzy]

Happy New year to all coming up. May we all have a great year of designing and learning.

Boyan, I did reset the OD of the shaft back to 35 mm + .02mm on both sides of the gear.
The inner diameter hole was set to 26 mm.

The pulley is 33.899 mm outer, 29.533 at the tooth lowest point
Wall thickness from lowest tooth point to inner dia is ~1.85 mm.

Yes M_C, I was doing this to eliminate the pulley step and as Jonathan posted earlier to lower the moment of inertia. (hope i didn't open another can of worms by saying that.LOL
mutzy

[m_c]

In the grand scheme of things, is the amount of inertia saved likely to make that much difference? Is a couple hundred grams of pulley, going to be that significant in relation to a 30KG+ gantry?

[mutzy]

Boyan, If you could look at this, I would appreciate any feedback. thank you

MutzyNewZip.zip