I am assembling the SP6 gears with the arbor of 1/16". By drilling the holes of the gears, I was able to push the arbor through the gears, but it is.a tight fit. Is it supposed to be a tight fit or should I drill the holes bigger to make the gears rotate more freely?
When I push the arbors into the four holes on the front frame, the fitting is so tight that the arbor won't rotate. Is it correct?
thanks,
Hole sizes vary all over the place depending on filament diameter, extrusion rates, and different printers. Small holes are almost always smaller than the CAD model. However, sometimes they end up close to the desired size.
If The CAD model was upsized to work for most people, then a few clocks would end up being way too big. It is easy to drill out small holes to fit, but oversized holes have no solution to make the parts fit. So, the only solution that works for everyone is to drill out the holes. Every arbor should be loose except for parts with set screws to hold onto the arbor.