I ran a brief test on the new sander and jigsaw to make a (portion of a) knife blade and a poorly-executed wooden giraffe. The tools function as expected!
This was a full teardown and rebuild of the ShopSmith jigsaw. It looks like a scroll saw, but since it has only a tensioned spring instead of a walking beam (to pull the blade upwards), it’s really just a glorified jigsaw that breaks blades and leaks oil.
There was a lot of rust on the sander that came with the rusty ShopSmith. I fully disassembled and cleaned it.
I recently acquired a “new” ShopSmith – a 1960s-era model that was in rough shape, and more or less “totalled” in terms of how many obscure parts needed replacing. However, it made an excellent donor machine and upgraded or replaced some key parts of my own 1950s-era ShopSmith.
The most useful thing about the old machine was the hinged piece at the end of the stand. I was able to use it to build a motor-servicing stand: a wooden frame to help slide the headstock onto the stand, which would then hold the motor tray. The stand itself allows the headstock casting to be held vertically for easy access to dis-assembly and cleaning.
The flat sanding attachment needs a backing plate, so I’m using an elaborate series of clamps to install it in the proper location.
Now that the design is pretty well settled, it’s time to true up the cheese wheel in-place.
Trouble: against all odds (and after triple-checking literally every other possibility), the wires from the 3-phase motor arrived mis-labeled from the factory. Fortunately, I was able to figure out a way to determine which wire of a 3-phase motor was which.
The new VFD and 1HP motor came in, but I made a mistake about the shaft size and so I don’t have a pulley that will fit. Time to make a pulley so that I can test everything out while waiting for the proper sized pulley to arrive in the mail.
Since it’s difficult to do precision work with wood (i.e., since I’m too lazy to do precision work with wood), I just made everything adjustable. It seems to work just fine, for both the round and flat sanding attachments.
The belt tension is in the rear of the machine.