I know this is an oddball thing to ask but... Has anyone heard of someone making mods to a DV59 so they can turn an occasional unusual thread? I'm pondering designing an easily attachable/removable add-on so I can do it. I know that for doing lots of threading it would make more sense to get a different lathe, but I might do this anyway just to have a bizarre project.
Anyone care to dissuade me or point to an existing solution?
Thanks J
The most obvious is a Geometric die head and chasers.
Does your lathe have a tailstock or a turret?
I missed the "bizarre project" first time thru. How about adapting a threading attachment for a Hardinge chucker to your lathe?
Sounds like this may be an item to investigate.
Thanks for the comments everyone. Ned - The lathe has a turret, but I just bought a tailstock for it also. I will definitely follow your advice and get a die holder - I think Hardinge made one for the turret that has some sort of quick release/ retract gizmo - need to look into it further.
The limit> On Mon, 15 Feb 2010 08:42:01 -0800 (PST), Jamie
That sounds like a Geometric head.
One thing you could do is to use a VFD. If the motor is a 3 phase motor, then you just have to add the variable frequency drive. If the motor is a single phase motor, then you have to change the motor as well.
Dan
Well ... I do 5.8-27 threads in brass at 850 RPM with no problems with my Clausing 12x24" and a bed turret with a 1" Geometric die head and the proper chasers.
The real problem is that for *unusual* threads, you first have to find the chasers for that thread. You can custom order them but after a few different unusual threads it might be cheaper to get another lathe with a leadscrew and quick-change gearbox. :-) Figure perhaps $150.00 or so for a custom set of chasers -- and they'll ask you want material you want to thread so they can make the chasers with the right rake in addition to everything else.
Enjoy, DoN.
With a die head...Geometric or H&G (which are cheap)....it really doesnt make a lot of difference what your low end is. Now if you want slow...you can run the beasty from a VFD and drop it down to nearly stationary.
Gunner
Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them.
Contact Leigh at MarMachine. He has a literal SHITLOAD of H&G die elements and a number of H&G heads
catruckman at aol.com
Gunner
Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them.
I have 2 of them.
Also a TFB for sale if anyone is interested. Same page
Gunner
Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them.
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