Gallery, Projects and General > How do I??

Making an accurate spindle with an innacurate chuck.

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kayz1:

 What is the Ali block with the holes in it called please? a mates Dad has a set on a shelf at home, 4 inches down to 1/2 inch in 1/2" drops, all in a row...
Ta!  Lyn.

S. Heslop:

--- Quote from: kayz1 on November 24, 2013, 07:42:49 PM --- What is the Ali block with the holes in it called please? a mates Dad has a set on a shelf at home, 4 inches down to 1/2 inch in 1/2" drops, all in a row...
Ta!  Lyn.

--- End quote ---

They're called turner's cubes, and that's a pretty impressive amount of steps. I remember it being pretty tedious work making one with just 3 holes to bore, carefully counting graduations on the handwheels...

S. Heslop:
Just to conclude the story. The steady rest eventually arrived after a week and a bit and works great (but if I ever make one of my own, i'd definitely give it 4 fingers so it's less of a fiddle to adjust), but even after that there was still about 0.60mm wobble on the end of the shaft. This was caused by the motor's own spindle that I couldn't grind better than 0.01mm using my plywood setup and dremel knockoff.

So I just scraped the shoulder of the spindle till I got 0.20mm wobble, which reduced vibrations to an amount I could live with.

With that the spindle sander is now working. I just need to pretty it up and figure out the dust extraction because whoa nelly.

Thanks for all your help!

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