Shopsmith Forums

After all of the chit chat...do we know why the drive belt contacts the way tube on the OPs Mark V?


The last image posted by the OP shows the motor to be way off center. Maybe he needs to examine the motor mount and/or the motor pan.

What I wish I had was clarification of where a plumb bob dropped off the rear edge of the idler sheave would be with respect to the inside circumference of the upper, rear way tube. I didn't use a plumb bob. My measurement is perpendicular to the tops of the way tubes rather than to the center of m...

Considering the new (to me) information on the motor position it seems clear that minimum clearance occurs at maximum speed. (Also, that's as shown in Steve's latest drawing.) On my machine, that clearance is less than 1/16", the smallest drill bit in the set I was using to gauge clearance. I ...

This has been interesting for me. Just wish I could get hands on the machine in question. After dwelling on the issue (using a Sketchup model) I can see only one possible cause (assuming the machine is assembled properly). TYhe second image in this thread got me thinking about this. I conclude from ...

I’ve installed my Power Pro and everything seemed to go ok. However, the eccentric keeps sliding back in the headstock casting when using my jointer. I’ve been able to move it back into position by loosening the bolt and nut in the headstock casting and then retighten everything. I did the speed te...

I am unable (at this moment) to do this in the shop (on a machine) but I have modeled this in Sketchup, Using the Sketchup model I I can see that if the drive belt does not move properly (smoothly and equally) within the sheaves during speed change the belt could certainly rub the tubes but NOT on a...

I still cannot see how, even in the worst case, that a Shopsmith Mark V drive belt could contact a way tube. Even when the eccentric is set to the 3 or 9 o'clock positions, the closest the belt comes to the way tube is 1/2". Could the motor mounting position be off? You requested a dimension e...

To avoid being misleading I should probably delete all of the posts/comments that I have made in this thread. They are wrong, wrong, wrong as are posts on this general topic I have made elsewhere. The three shafts MAY NOT align in the verticle plane as I have previously stated. I do not no where or ...

I sure wish we could put these three machines together in the same shop. I cannot imagine why the differences. David, if you drop a plumb bob from the upper shaft does it reveal the same differences.