- Joined
- Apr 8, 2013
- Messages
- 1,974
The Grizzly drawbar and the 5MT-5C collet adaptor came today. What a dunce I am, I should have ordered the spanner nuts at the same time, they're under ten bucks. I figured I's just make them but forgot they were metric. I'm not gonna get involved with change gears and burning up time I don't have to save such short money. I'll order them first thing in the morning. I indicated my spindle with and without the collet adaptor today. The grads on the indicator are .0005 and it was moving about half of one graduation. Unfortunately the cheap 1 inch collet I bought won't pass my 1 inch drill rod so I'm probably gonna buy a Hardinge collet for the test bar for $32. I would really appreciate it if you could post a picture of your drawbar handwheel setup. Thanks,epanzella,
At the time I bought my G4003G, Grizzly didn't make a collet closer for it. I ordered one for the same spindle size but for a lathe with a shorter spindle. I had to make some modifications to the closer, I didn't use the entire quick opening mechanism that it came with. I made some tubes and an adapter for the outboard end of the spindle and used one of the adjustment nuts as the basis for a hand wheel closer. Slower and somewhat more clumsy than a closer designed for the G. I've since used the method you describe with a rod out of a 4 foot wide Printer, That's the principal reason I think I must be very close, I had less than 0.001 average run out over 24 inches at the time.
All the best.
Olin
Ed P