Shopsmith Forums

These two sheaves are permanently positioned on their respective shafts. Can anyone tell me how far apart they are. Also, with the speed control set on "Q" how far apart are the Control Sheave and the Floating sheave?

The 'non-movable' sheaves location correspond with the 'movable' sheaves position on the opposing pulley at their extreme positioning.

i.e floating sheave aligns with the idler fixed sheave when set at 'fast' and the control sheave aligns with the fan sheave when set to 'slow'.

Thus the relative spacing of the fixed sheaves is equal to the distance traveled by the movable sheaves.

The fan sheave is further to the right than the fixed idler sheave when viewed from the normal operator's position facing the switch side.

IIRC the spacing is one inch(but that is subject to not recalling correctly). AND proper belt length/width etc. which affect travel distance.