01-11-2015, 02:45 PM
(01-11-2015, 01:41 PM)f350ca Wrote: You probably could cut the shaft but I'd hate not being able to put it back to stock if the mod didn't work out for some reason. Hey the mill could be a highly praised collectors item some day.
As for the adapter it is pretty small to bore but probably do able. But what about using a 17 mm reamer, you like buying tools Ed.
Or can you shorten the adapter and only engage one inch of the shaft. i.e. go with the top drawing but shorten the 3.1875 section to 1.1875.
On the top design though, can you make it a little longer at the shoulder, there's not much material where the 0.668 bore meets the 0,625 dia. Probably ok but it wouldn't take much side load to shear out the 0.1873 section.
Greg,
I could return it back to stock by making a new adapter so that's not an issue for me.
I don't mind buying tools when they will be useful. I can't justify buying a 17mm reamer to use once.
I could tweak the top drawing but another reason to modify the lead screw is then I can make the adapter work with the race that came with the power feed rather than having the needle bearing ride on the surface finish of the adapter which probably won't have the best of finishes for a needle bearing.
The only way to make the shoulder longer is to increase the length of the spacer which I could do since I haven't made the spacer yet. I have made the mounting bracket and don't want to remake it. Would .25" be good enough or should I go thicker?
I'm leaning towards cutting the lead screw. There are more benefits than drawbacks, I think.
Ed