.png)
Tweet
This is one I built out of mostly junk several years ago. 1/2hp, 1800 rpm, 3~ motor for power. The base and motor mount are just some drop pieces of 1/2 and 3/8 steel plate. The frame pieces are some 1x1 square bar. The drive wheel is an old urethane caster wheel I pulled out of the dumpster. It had a chunk gouged out of the tire which is why it was in the trash. I knocked the bearings out and stuck it on a mandrel, then turned it down and flattened the crown out of it. I made up a keyed steel bushing, pressed it in the old bearing bore and drilled a setscrew in on an angle to lock it to the shaft.
I was going to make the idler wheels, but the water pump went out on my truck the same day and the serpentine belt idlers on the front of the engine caught my eye. They were cheaper than the bearings needed to make my own by themselves. Plus I figured if they will hold up for years running the serpentine belt under the hood of a car, they should be more than adequate for this little low tension sander. The part numbers are visible on the box in the picture incase anybody could use some.
I built it to run a 1 x 60" belt, because I wanted a deeper throat for grinding odd shaped parts with inside curves. The table angle adjustment is pretty simple, it's just a piece of steel angle with the faces milled to a perfect 90*. Bothe legs of the angle have a 3/8 x 1-1/2 long slot milled in. Bothe the table attachment bolt and the pivot bolt run in those slots, so the table can be tilted fore and aft to some pretty extreme angles. The knob under the table in the pic is just for a short set screw that holds the split table halves flush.
None of the wheels have any noticeable crown for tracking. On a belt this narrow it really isn't needed, the tracking adjuster on this one never got a knob added to it. It's only needed tracking once since I built it and not since.
I was going to make the idler wheels, but the water pump went out on my truck the same day and the serpentine belt idlers on the front of the engine caught my eye. They were cheaper than the bearings needed to make my own by themselves. Plus I figured if they will hold up for years running the serpentine belt under the hood of a car, they should be more than adequate for this little low tension sander. The part numbers are visible on the box in the picture incase anybody could use some.
I built it to run a 1 x 60" belt, because I wanted a deeper throat for grinding odd shaped parts with inside curves. The table angle adjustment is pretty simple, it's just a piece of steel angle with the faces milled to a perfect 90*. Bothe legs of the angle have a 3/8 x 1-1/2 long slot milled in. Bothe the table attachment bolt and the pivot bolt run in those slots, so the table can be tilted fore and aft to some pretty extreme angles. The knob under the table in the pic is just for a short set screw that holds the split table halves flush.
None of the wheels have any noticeable crown for tracking. On a belt this narrow it really isn't needed, the tracking adjuster on this one never got a knob added to it. It's only needed tracking once since I built it and not since.
Comment