Gallery, Projects and General > How do I??

Roller Project

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smthrll:
Here's a few pics to show that I've followed thru with my roller machining experience.  It's been great to learn the basics of turning, facing, boring...and trying to hit exact dimensions and get good finishes. 

I solved the problem of the finish on the aluminum drums - I pressed in the end caps on the aluminum pipe that contain the bearings.  These were easier to turn between centers and didn't require use of a rest at all.  The finish turned out pretty well.

Since these pics were taken, I've welded feet onto the bottom and taken it for a test spin.  For those that are cyclists - Phil was right.  It turns you into a bucket of sweat after about 30 minutes.  Each drum spins easily enough, but there is something about that flywheel that adds pretty good resistance.   Makes me wonder if there is something to this "viscous drag" that he mentioned (while I could usually spin at 20mph, I now drop to a much lower  42x19 gear to maintain 13mph). 

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