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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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2 Morse taper extender to 3 taper, then 1 inch threading die holder
Hi, gang!
After a lot of study, I have determined the self-replication potential of the Smithy Super Shop and it has some possiblities, including the unitary design. To do a common task on the lathe, threading the end of a rod with a 13/16 or 1 inch die, the die is usually put in a tailstock holder. I believe Taig and Sherline both have 1 Morse taper die holders for 13/16 inch dies. Will a 2 Morse taper hold a 1 (one) inch die? Would a 2 to 3 extender hold such a die? Is there an R8 collet for 13/16 or 1 inch that would hold the die, with the work (a rod) held in a 2 Morse taper drill chuck of 1/2 inch capacity in the tailstock? www.smithy.com "Woodorking" link on left I am currently working on duplicating one of the most difficult items on such a tool: the saw blade. I've worked out a simple circular milling/indexing jig. Yours, Doug Goncz (at aol dot com) Replikon Research, Seven Corners, VA 1200+ original posts at: http://groups.google.com/groups?as_e...uthors=dgoncz@ |
#2
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2 Morse taper extender to 3 taper, then 1 inch threading die holder
In article , Doug Goncz says...
Will a 2 Morse taper hold a 1 (one) inch die? Here I am supposing you are talking about the OD of the die itself, not the size of the thread you are trying to achieve. I think that there are commercially available die holders that mate the 1 inch dies to mt2. Another way that works nicer is to have a die holder with a straight shank. Then the jacobs tailstock chuck is set for a slip fit, and the die stock slides in and out of the chuck. There are arms on the die stock so the user can hold it and keep it from turning. Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
#3
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2 Morse taper extender to 3 taper, then 1 inch threading die holder
Will a 2 Morse taper hold a 1 (one) inch die? Here I am supposing you are talking about the OD of the die itself, not the size of the thread you are trying to achieve. I think that there are commercially available die holders that mate the 1 inch dies to mt2. Another way that works nicer is to have a die holder with a straight shank. Then the jacobs tailstock chuck is set for a slip fit, and the die stock slides in and out of the chuck. There are arms on the die stock so the user can hold it and keep it from turning. Jim I made up some die holders that I think work a bit better than that. Two pieces each. First piece is a straight rod maybe 3/4" diameter with a Morse taper shank to fit tailstock. Second piece is 1.5" stock, bored to fit the 3/4" shank, counterbored to take a die, with setscrews to hold and adjust the die. The outer piece is free to turn on the shank. For small threads, hand grip is enough to make it cut. For larger threads, a side handle I can hold or rest on the compound. Made a couple of sizes - for 1" and 5/8" dies. John Martin |
#4
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2 Morse taper extender to 3 taper, then 1 inch threading die holder
In article , JMartin957 says...
The outer piece is free to turn on the shank. For small threads, hand grip is enough to make it cut. For larger threads, a side handle I can hold or rest on the compound. I *really* want to make a setup like that. Also, a tap wrench with a sliding pilot. Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
#5
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2 Morse taper extender to 3 taper, then 1 inch threading die holder
I have ordered the twelve dollar holder that accepts the Smithy Super Shop cup
center for wood and live center for metal. I believe it is 2 MT. There is room in it to machine a 3MT segment, I am sure. So after that's done, I just need a 3 MT adapter thingie with a 1 inch counterbore and retainers on the end, and maybe also a 13/16 inch recess farther inboard. I can't make this with the 3MT adapter in the power head of the Super Shop. That accepts R8 collets. Now if there was an R8 collet blank with an MT3 recess in it, I could turn the recess. Failing that, I can plunge a 3/4 shank, 1 inch OD end mill into the holder held in the taper socket at the tailstock, and a 1/2 inch shank 13/16 inch end mill for the other die. I'll check MSC for an R8/3MT adapter. Then I can use a 2-3 MT adapter for all the standard accessories. Yours, Doug Goncz (at aol dot com) Replikon Research, Seven Corners, VA 1200+ original posts at: http://groups.google.com/groups?as_e...uthors=dgoncz@ |
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