- Joined
- May 28, 2011
- Messages
- 17
As promised , a little write up on the drill chuck .
Wanted to come up with a way to drill an angled hole in a piece that was chucked in the lathe . Saw a post on the web were a guy made something similar to this , don't remember who the original poster was but he had a pretty good application that I modified and made . Thanks to OP for the idea .
The BXA boring bar tool holder with the sleeve removed will take a 1" bar , so made cage that would take a 1/2" spindle . Bored it on the one end for a R-8 bearing and a 1/2" x 3/4" (IIRC) x 3/4" long brass bearing on the other . Th brass bush should have an oiling hole in it , I put a couple of drops of oil on the shaft when I use it .The spindle is a piece of 1/2" drill rod threaded on one end to accept the Jacobs chuck that a friend had given me and turned to 3/8" on the other end to go in the cordless drill . A chuck with JT taper would have been better , but this one was free . Had to make a couple of spindle shafts to get the run-out to an acceptable .0035 " . Not great , but most of the drill chucks I have , have that much . I do have a couple that are under .001" tho . If I were to make another one it would be keyless w/ a JT taper .
Thrust washers were used to let everything spin nice and smooth .
Whats good about this set up is that on an angled hole , I spot the hole or use a center drill to get the location dead on , then use the appropriate sized drill to finish . Of course the hole to be drilled can be perpendicular or any angle desired , just swing the compound to the position that you want and feed with in with it . The drill can be removed an a a tap put in the drill and do the threading if needed . I use a reversable cordless drill , but any reversible kind will work , battery or 110v .
A couple more pics.
A good piece of tooling , but for critical parts they come out a go to the mill .
Wanted to come up with a way to drill an angled hole in a piece that was chucked in the lathe . Saw a post on the web were a guy made something similar to this , don't remember who the original poster was but he had a pretty good application that I modified and made . Thanks to OP for the idea .
The BXA boring bar tool holder with the sleeve removed will take a 1" bar , so made cage that would take a 1/2" spindle . Bored it on the one end for a R-8 bearing and a 1/2" x 3/4" (IIRC) x 3/4" long brass bearing on the other . Th brass bush should have an oiling hole in it , I put a couple of drops of oil on the shaft when I use it .The spindle is a piece of 1/2" drill rod threaded on one end to accept the Jacobs chuck that a friend had given me and turned to 3/8" on the other end to go in the cordless drill . A chuck with JT taper would have been better , but this one was free . Had to make a couple of spindle shafts to get the run-out to an acceptable .0035 " . Not great , but most of the drill chucks I have , have that much . I do have a couple that are under .001" tho . If I were to make another one it would be keyless w/ a JT taper .
Thrust washers were used to let everything spin nice and smooth .
Whats good about this set up is that on an angled hole , I spot the hole or use a center drill to get the location dead on , then use the appropriate sized drill to finish . Of course the hole to be drilled can be perpendicular or any angle desired , just swing the compound to the position that you want and feed with in with it . The drill can be removed an a a tap put in the drill and do the threading if needed . I use a reversable cordless drill , but any reversible kind will work , battery or 110v .
A couple more pics.
A good piece of tooling , but for critical parts they come out a go to the mill .
