- Joined
- Aug 5, 2013
- Messages
- 255
I have slowly been putting my Diamond-22-M back together, and discovered that the spindle is bent and the bore is cam shaped at the front.
I didnt realize spindle was bent until I put it back in.
I did see the taper runout before I took it apart.
I bought the mill a few years ago, and have been painting it, fixing minor issues, with the intent on doing a spindle taper touch up grind when back in the machine.
The nose taper is out maybe .006.
I discovered that the spindle was bent by placing a long indicator on the spindle shaft, about 6" back from the nose. (Measured with spindle installed) (~.006)
Also, the spindle appears to be made of 2 pieces. I suspect press fit or welded way back when....
Looks like I have to take the spindle back out again, and figured I might just make a new one.
Any thoughts on this?
Also, what type of steel should I use.. I don't expect very much usage on the mill in my hobby shop, likely leaving in the arbor most of the time.
Would DOM tubing be a good choice, as I don't have line boring capability.
I dont need the spindle hardened.
There is a write-up from a fellow who did something similar on his Vernon mill, using 12L steel.. http://kinzers.com/don/MachineTools/VernonMill/
Thanks in advance.
Dan
I didnt realize spindle was bent until I put it back in.
I did see the taper runout before I took it apart.
I bought the mill a few years ago, and have been painting it, fixing minor issues, with the intent on doing a spindle taper touch up grind when back in the machine.
The nose taper is out maybe .006.
I discovered that the spindle was bent by placing a long indicator on the spindle shaft, about 6" back from the nose. (Measured with spindle installed) (~.006)
Also, the spindle appears to be made of 2 pieces. I suspect press fit or welded way back when....
Looks like I have to take the spindle back out again, and figured I might just make a new one.
Any thoughts on this?
Also, what type of steel should I use.. I don't expect very much usage on the mill in my hobby shop, likely leaving in the arbor most of the time.
Would DOM tubing be a good choice, as I don't have line boring capability.
I dont need the spindle hardened.
There is a write-up from a fellow who did something similar on his Vernon mill, using 12L steel.. http://kinzers.com/don/MachineTools/VernonMill/
Thanks in advance.
Dan