Re: [CAD_CAM_EDM_DRO] MiniRobo

> You could look at the method I am using on my little miller to support the
> leadscrews. I am using the ball bearings that are made for the ends of

the

> old Hoover Junior vacuum cleaner. They are a hardened steel cup for the
> outer race and a shaped inner race which provide both end thrust and a
> self-aligning capability. I have popped a couple in a tube inner races
> facing, with a spacer collar which is fixed to the leadscrew between them.
> A screwed end cap on the tube adjusts endshake and is secured with a blob

of

> paint - on my machine it has given me undetectable backlash and free
> movement for less than half the price you quote, and that was buying the
> bearings retail.
>
> Ian

Sounds like a good method. I hadn't thought about vacuum cleaner bearings.
I have thought about using ball bearings for front wheels of bicycles.
Sounds like you got the race with the balls from the vacuum cleaner.

Dennis