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CX701 gearbox questions

plalonde said:
Has anyone figured out why the compound has that step on these lathes? I'm guessing it's an attempt to get more meat for the threads that hold the tool post.
I'll likely take mine apart today to measure the clearance between the feed screw and the casting, just to satisfy my curiosity.
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It is done so an AXA tool post fits it properly. The lathe is on the small side for a BXA holder. It's not that it won't work, but the BXA is designed for a bigger lathe and bigger tools. The AXA is right sized for that lathe and without the platform it isn't high enough. The BXA is for bigger lathes and need to sit lower.

The tool post bolt is just recessed a small amount into the compound along with a keeper set screw to maintain the indexing.

When you think about how the compound is mounted, any extra meat for strength should be at the back not the front. Since the back has no extra meat, it's obvious the front doesn't need it either. So it's only about height not strength.
 
plalonde said:
These tool holders sure look like I could hold them down to the cross slide using strap clamps and shims...
But not today ;-)
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Ya, I wouldn't do that either. Wanna send it to me? If so I'll pm you my address. Turn around would be about one week. 3 days (or less) on each end for the courier and 1 hour on my end for milling.
 
Susquatch said:
It is done so an AXA tool post fits it properly. The lathe is on the small side for a BXA holder. It's not that it won't work, but the BXA is designed for a bigger lathe and bigger tools. The AXA is right sized for that lathe and without the platform it isn't high enough. The BXA is for bigger lathes and need to sit lower.
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That doesn't explain why the lathe is a bit small for the AXA holder I have, then. Unless they think I should only be going up to 3/8" tooling.
But the knurling tool is pretty marginal at its height.
I don't regret the purchase, but I wish they hadn't cheaped out on the last .250" to make it a true 12" swing instead of 11.75"
 
Susquatch said:
Ya, I wouldn't do that either. Wanna send it to me? If so I'll pm you my address. Turn around would be about one week. 3 days (or less) on each end for the courier and 1 hour on my end for milling.
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I think I'm good for now, but thanks for the offer. I might take you up on it in June when I go away on holidays - I don't want to be without the tool for a week right now while I'm in the fun part of the learning curve.
 
plalonde said:
I think I'm good for now, but thanks for the offer. I might take you up on it in June when I go away on holidays - I don't want to be without the tool for a week right now while I'm in the fun part of the learning curve.
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Ya, totally understand. Whenever. But if there is someone closer with a mill, a visit to them would have you up and running right away!

And ya, an AXA is normally for 3/8 tooling not 1/2.

You will want to get a pinch type knurler if you want to do knurling. They are MUCH easier to use than the push type.
 
One of the first things I did with my then new 10x22 lathe was to chuck the top part of the compound in the 4 jaw and turn that step off. I still ended up milling down a couple of tool holder some so I could hold some 3/8 tool bits
 
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