Balance 4-jaw chuck for PM 1236

Good job on the balancing!

I balanced my 4 jaw in a similar fashion. Mine was good to about 400 rpm then it would really start shaking the lathe. It's good to over a 1000 rpm now.
Great to hear about your success. Just ran mine at 1200 setting without any shaking.
 
Great to hear about your success. Just ran mine at 1200 setting without any shaking.
I am still curious, were the jaws gripping enough or did you need to support the back side of the chuck with a spider of something?
 
Here is how I ballanced mine.

 
Here is how I ballanced mine.

I understand what you were doing, Just wondering if the Jaws are enough or if it needs to be supported on the back side of the chuck due to its weight.
 
Back
Top