Thread: New grinder project

Too much for a 1/2" bolt?

I could weld on a second side for the main pivot so it is not just the 1/2" steel plate holding the 1/2" bolt.

I think I will weld or bolt the whole contraption to a metal base. Might need that anyway for my belt tensioning plan for the drive shaft (4-speed pulley on one side and 2" drive wheel on the other, on pillow blocks).

Originally Posted by Atchbo

Too much for a 1/2" bolt?
I could weld on a second side for the main pivot so it is not just the 1/2" steel plate holding the 1/2" bolt.
That would be better!
I think I will weld or bolt the whole contraption to a metal base. Might need that anyway for my belt tensioning plan for the drive shaft (4-speed pulley on one side and 2" drive wheel on the other, on pillow blocks).

I meant that using the quadrants (sketched in red)or even squares of plate will reduce the twisting stress on the pivot arm bolt. It would also be a way to clamp the arm at any angle with a bar or "C"clamp.
Yes, a wide and long base welded to your bottom bar every two inches along it with a bead of 1 inch long on both sides would be a winner. That welding method reduces distortion.

Or do you mean welding the tracking arm instead of having it on a pivot and spring?

No.
~Richard