This sort of goes along with 75Plus's thread
HERE since the spindles are alike.
My neighbor picked up a Delta/Rockwell drill press with a very wobbly spindle. Apperently somebody must of
![:wack:](https://madmodder.net/Smileys/default/Just_Cuz_15.gif)
with a big hammer because the spindle was running out about .050". He asked if I could make a new one. Sure why not, ain't got nothin' else to do.
![:doh:](https://madmodder.net/Smileys/default/doh-45.gif)
So here is how I did it.
I didn't take any pictures of turing the taper on the end for the chuck. Easy to do though. I used the compound slide. I used a last word indicator to tram the old part. Once the indicator read zero for the full length of the travel I cut the taper on a new piece of cold rolled stock.
Since the bushing that has the two teeth that were pretty well worn I just used a small end mill the fit in the "V" groove of the old spindle. Next I set up the Spindex and trammed it in.
![](http://www.kingstonemodeleng.com/Madmodder/spindle1.jpg)
Found the center using a wiggler. Touch the back side then did the front and took half of the distance traveled to get to the center of the rod.
![](http://www.kingstonemodeleng.com/Madmodder/spindle2.jpg)
Next I put in the piece of cold rolled stock. Touched off the bottom of the mill and went up another .020" for the first cut. I noticed that I had a slight vibration will cutting so I used two "V" blocks stacked on top of each other and some shim stock to get a snug fit in the "V". Then I used a clamp to gently hold the part in the groove. A pain in the butt, but I didn't break the cutter. I kept increasing the depth by rasing the table .020" untill I reach a depth of .150".
![](http://www.kingstonemodeleng.com/Madmodder/spindle3.jpg)
I also found a clamp handy when I first started into the cut. It was swapped for the end clamp when I got close to this clamp.
![](http://www.kingstonemodeleng.com/Madmodder/spindle4.jpg)
Next came the hole for a spring pin. I got the distance by laying the old shaft next to the new and eye balling (eye's are calibrated to 10,000th of an inch
![:lol:](https://madmodder.net/Smileys/default/kranke_200-1.gif)
)
![](http://www.kingstonemodeleng.com/Madmodder/spindle5.jpg)
And there is the finished shaft. I'll see if it fit's tomorrow when I go see my neighbor before we go for cocktails.
![:ddb:](https://madmodder.net/Smileys/default/dancenana.gif)
![](http://www.kingstonemodeleng.com/Madmodder/spindle6.jpg)
And another bit of info. Memeber's are always asking about feeds and speeds. This cutter is an .125" dia. run at 1000rpm and 1" feed per minute. I didn't use any formula to compute this. I just picked it out of thin air.
Bernd