Shopsmith Forums

I am considering getting a speed reducer and have a question that I do not see addressed anywhere. Has anyone measured the run out on the speed reducer?

Al

No, haven't done such a measurement. Didn't realize that run-out would be an issue, at least for my uses.

There is some vibration using the speed reducer after it has been sitting for a while. This is caused by "set" in the two poly-v-belts use in the reducer. It required quite a bit of running to lose the "set' and get it vibration free. The belts are adjustable, but not enough to change any "set".

Never had a problem with the speed reducer. I never noticed any runout. Don't know if runout would be a problem at the reduced speed. If I can't see the runout don't generally worry about it unless it is very critical.
Bill V

Hi,

I have found that I mostly use it for drilling with large bits. Since the bits have a center point that stabilizes the drilling but I have noticed a wobble at times. While drilling the speed reducer has to slide on the tubes so it is not as hooked down as when using it for lathe work. Large bits are taking out a lot of wood so this is not an unexpected issue.

When doing lathe work and having it clamped down I have never noticed any issues at all. I have not attempted to measure run out.

The speed reducer sure has come in handy a lot of times for me. When trying to drill with a bit that wants to work at 350 rpm then pushing it to 700 makes things get hot really fast. A lot of pumping and slow going. Only two ways I know of fixing that is the speed reducer or the new powerpro.

Ed

Ed;
The speed reducer and the Power Pro yields about 35 RPM. Good for this type of job.
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Bill V

Great thinking Bill!

Thanks for the idea. I'll use it the next time I have to reload my trimmer - which will probably be this afternoon.