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Step 11It's Time for the Real MODS!
The first picture on this step show the results of this step; which are new pulleys in place on new shaft extensions.
To make the shafts I cut two short lengths of a 1/2" diameter soft steel rod that I knew would match the stock pulleys that I would purchase. I chucked them one at a time into a machinist lathe and after measuring the motor shaft, I learned that not only was it a left-hand thread, but it was metric to boot! I drilled the shaft and tapped it with the correct tap, which I purchased from our local Granger branch.
Fortunately the lower shaft had a right-hand thread, and I happened to have the proper metric tap on hand. What I didn't have was a tap wrench, so rather than leave the shop you can see that I took matters into my own hands and grabbed a pair of Vise Grips.
One last thought on this step. It was obvious that the new belt wold be an odd size, so I purchased a length of link belt from my local Woodcraft store, which I knew I could make to whatever length I needed. On top of the custom-ability, link belts transfer power very efficiently, so it's a win-win.
To make the shafts I cut two short lengths of a 1/2" diameter soft steel rod that I knew would match the stock pulleys that I would purchase. I chucked them one at a time into a machinist lathe and after measuring the motor shaft, I learned that not only was it a left-hand thread, but it was metric to boot! I drilled the shaft and tapped it with the correct tap, which I purchased from our local Granger branch.
Fortunately the lower shaft had a right-hand thread, and I happened to have the proper metric tap on hand. What I didn't have was a tap wrench, so rather than leave the shop you can see that I took matters into my own hands and grabbed a pair of Vise Grips.
One last thought on this step. It was obvious that the new belt wold be an odd size, so I purchased a length of link belt from my local Woodcraft store, which I knew I could make to whatever length I needed. On top of the custom-ability, link belts transfer power very efficiently, so it's a win-win.
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