Machineshop benefits in woodworking #1: Repairing an old "Craftsman", heavy duty belt sander.

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Blog entry by hobby1 posted 04-19-2015 02:42 AM 1516 reads 0 times favorited 0 comments Add to Favorites Watch
no previous part Part 1 of Machineshop benefits in woodworking series Part 2: woodworking bandsaw repair »

This guy I do woodworking jobs for, now and then has a machining project that needs to be done, in this case it was his main belt sander, he uses all the time, was need in repair.

It had an unbearable amount of vibration, and he asked if I could take a look at it, and see what can be done.

Once I showed him the problem, I suggested a repair I could do for it, using my hobby benchtop machineshop tools, and he agreed to it.

It was a weekend project, friday and part of saturday.

Video part 1
is the problem revealed and the solution to fix it, and the start of diisaembling the sander to get to the motor shaft

video part 2
is mainly the drawing up on my drafting board the parts that need to be made, including a fixture, and the actual part for repair.

video part 3
is where I’,m making the alignment fixture that will be used along the repair and assembly of the machined part.

video part 4
is the machining of the new part that will replace the broken one in the sander.

video part 5
in this video I’m using the shaft fixture I made earlier, to align the fan cage and the bearing flange part on the lathe to temporarily glue in place , then start setting up my rotary table, and aligning the whole fan assembly on the table, getting ready to drill the rivet holes.

video part 6
in this video I have the rivet holes drilled, then I rivet everything together to finish the part into a complete squirrel cage fan, then install it back on the sander and run it to check for any excess vibration.

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