OldTools Archive
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270449 | "Eric Coyle" <ecoyle@t...> | 2020‑04‑08 | update on boredom project-side plate for MF #7 skew block plane |
For all the galooti MFia, it's still a work in progress bu I thought I would show you some of the progress to date. Thanks for all the data and comments. It wasn't just useful, but incredibly useful! https://www.flickr.com/photos/183694571@N.../49747492253/in/dateposted-public / The bolts holding it in place are indeed *10-30 bolls. . WARNING: some tailed appurtenances were used in the following comments, but it was in aid of repairing a hand tool. The photo shows the inside of the plate, the outside doesn't look quite like that pretty yet. The pins were turned down on a unimat to get a shoulder (4.5mm) a hole drilled, and the outside hole tapered with a hand reamer. Inside sanded, then buffed with a deburring wheel on the inside. Pins inserted-then (hand)peened over-a-la- dovetails on infill planes. That, in blacksmith parlance, "upset" them, so there was a little hand filing to do for trial fit. Unfortunately, my hole placement was off by 0.30 mm, but much as I hated to do it, simply bored out the existing holes from 15/64 to1/4 and it fit smoothly Still to be done is fabricate the 10-30 bolts..die is on the way. Once that's done, then lock the plate in place and fit and fettle the plate to fit the body on the outside Learned something new to me along the way..Hex dies are intended for re-threading or repairing threads, and round dies are intended for cutting virgin threads. Could be internet BS or shop mythology-who knows. Another rabbit hole to persue. Offered for your interest Eric |
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270451 | Erik Levin | 2020‑04‑08 | Re: update on boredom project-side plate for MF #7 skew block plane |
Eric wrote: > Learned something new to me along the way..Hex dies are intended for > re-threading or repairing threads, and round dies are intended for cutting > virgin threads. Could be internet BS or shop mythology-who knows. Sort of. But it is a safe way to go when buying sight unseen, and it can be tough to tell when you are holding the die in hand. Round dies are almost exclusively for cutting threads. Hex dies go both ways. Some of the suppliers I use don't stock hex thread cutting at all, so a hex from them will be for repair. Rethreaders seem to be sold as thread cutting fairly often by less reputable sources, including box stores, to the point that I have several times received thread repair dies when purchasing what were supposed to be thread cutting dies. Many people don't realize there is a difference. There are several reputable lines of hex thread-cutting dies, but if buying a hex die, you need to be sure that your supplier is reputable. *** This message was sent from a convenience email service, and the reply address(es) may not match the originating address |
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270452 | Ed Minch <ruby1638@a...> | 2020‑04‑08 | Re: update on boredom project-side plate for MF #7 skew block plane |
Very nice- now start actually uing tht plane! Ed MInch |
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270453 | "kevin.m.foley" <kevin.m.foley@c...> | 2020‑04‑08 | Re: update on boredom project-side plate for MF #7 skew block plane |
> Eric Coyle |
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270476 | Bruce Zenge <brucensherry@g...> | 2020‑04‑11 | Re: update on boredom project-side plate for MF #7 skew block plane |
OK, I'll bite. What is the difference between rethread and initial threading? Bruce Z. Des Moines, IA Who is always willing to learn something new....... On Wed, Apr 8, 2020 at 5:26 AM Erik Levin via OldTools < oldtools@s...> wrote: |
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270477 | John Ruth <johnrruth@h...> | 2020‑04‑11 | Re: update on boredom project-side plate for MF #7 skew block plane |
Bruce, On an initial threading, you want to CUT metal. You want to see chips fall out. On a re-thread, you want to DISPLACE metal, essentially by bending it back to where it belongs on the ridges. You really don’t want to see chips, although there will likely be a few. John Ruth “Of threads, and threading systems, there is no end!” |
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