Balancing My Boring Head.

[BRIAN]

My bench top mill is mounted on a small movable steel bench. and when I use the boring head with any degree of offset the whole thing tends to wriggle. in the past I have used a worm drive hose clip an a small piece of lead sheet to try and limit this
As i am about to do the final finish boring on the cylinders of the 5 Cylinder Radial I wanted a better way to smooth out this shake so I made a stud that fits in the side port of the head that takes 2 10 mm nuts that are adjustable and balance out the forces. I can now run from zero to 1000 rpm without any vibration though I am unlikely to ever go that fast.






Brian.

 

[Tony Wells]

Good idea, Brian. You can add or remove nuts and or washers to vary the weight to achieve balance with virtually any boring bar you choose.

 

[FOMOGO]

Nice, simple, effective, gotta love it. Mike

 

[dieselshadow]

Dadgum Brian. That is pretty cool and effective. I'd love to be a fly on the wall in your shop for a day. Imagine what I could learn.....

 

[dulltool17]

Outstanding idea Brian. I have the same boring head. Even though my set up is a bit more rigid, I' be adopting this idea!

 

[BRIAN]

One thing I forgot to mention was that I reduced the shank at the point that the grub screw nips to eliminate the possibility
of it coming out due to centrifugal force. Better safe than sorry.
Brian.