Straightening shafts
October 03, 2013 07:06PM
I purchased some cheap 8mm shafting from China and it all turned up bent (up to 0.5mm run out) so I came up with a simple but accurate way to straighten them quickly with low budget tools. I used a DTI (dial test indicator) and some skateboard wheels and bearings.

Results were as good as plus and minus 5 microns. The worst case was plus and minus 10 microns. Way good enough for a 3D printer.

See my video to show how it was done.
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