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Preventing half-nut disengagement

#LATHES

CLevinski All Messages By This Member #1319 Hello, All, I wanted to mention a small modification that John Lindo had suggested to me for the half-nuts of the mini-lathe. Under some, more aggressive machining operations, it seems that the spring detent that is normally used to keep the half-nuts engaged is not quite sufficient. John had added a small spring to pull the half-nuts together, thereby requiring more force to disengage them. I did the same, and found that it works pretty well. Just a thought for those of you who might have problems with the half-nuts staying engaged in spite of adjusting the detent pressure, or those of you converting to any form of digital control. You can see the spring to the left of the lead screw in the photo below. -- Regards, Charlie New Jersey, USA ? *ANTHONY’S LAW OF THE WORKSHOP: Any tool, when dropped, will roll into the least accessible corner of the workshop.* *THE LINDO COROLLARY: If you have cats, they will promptly hide the tool.* 20201111_135812.jpg
Bill in OKC too All Messages By This Member #1320 Good to know, Charlie. I'm considering (have been for some years, in fact) replacing the retainer on my single half-nut machine with a 2nd half-nut. If I do, that would be a good addition to it.? Thanks! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein) On Friday, November 13, 2020, 11:07:03 AM CST, CLevinski <clevinski@...> wrote: Hello, All, I wanted to mention a small modification that John Lindo had suggested to me for the half-nuts of the mini-lathe. Under some, more aggressive machining operations, it seems that the spring detent that is normally used to keep the half-nuts engaged is not quite sufficient. John had added a small spring to pull the half-nuts together, thereby requiring more force to disengage them. I did the same, and found that it works pretty well. Just a thought for those of you who might have problems with the half-nuts staying engaged in spite of adjusting the detent pressure, or those of you converting to any form of digital control. You can see the spring to the left of the lead screw in the photo below. -- Regards, Charlie New Jersey, USA ? *ANTHONY’S LAW OF THE WORKSHOP: Any tool, when dropped, will roll into the least accessible corner of the workshop.* *THE LINDO COROLLARY: If you have cats, they will promptly hide the tool.*

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