Re: 67db at 5100 rpm? 2x better surface finish?
Originally Posted by
BAMCNC.COM
If you had a new machine this mod would give you the lower sound and vibration hands down. They can't "apply" the bearing change mod, however they can sell an electric fan kit. No matter what, with no fan, you will have less vibration and less sound.
I seem to remember a thread talking about how somewhere along the line, Tormach modified the fan in the motor to better balance it. So maybe your mod doesn't necessarily apply to new machines? I will have to pull off the fan cover and take a look at mine.
My recollection is that the original fan had a bolt as a set-screw holding it to the shaft, and the bolt head did bad things to the balance.
Tim
Tormach 1100-3, Grizzly G0709 lathe, Clausing 8520 mill, SolidWorks, HSMWorks.