Dome sander
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Dome sander
Here are some pictures that show the basic elements of a dome sander I made.
Critical part is a lawn mower blade bearing/spindle. Cost $63. It is marked part # 607418 Blade spindle assembly. It has a tap for a .625-11 bolt on the side I put facing upward to bolt on the disk, and a shaft with a keyway on the bottom to attach to the big pulley.
I used a 11” diameter and 2.5” diameter pulley combination. This gives just about the perfect speed. The motor is a Dayton 3k771BG. It is 1725 rpm, 1 hp. Blade tension is from a basic spring pull arrangement. I built it in a box with sides and a vacuum inlet. It makes lots of dust. I use an 80 grit paper.
If anyone wants STL files of a 28R and 15R dome, pm me.
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