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267121 | RH <rhhutchins@h...> | 2018‑11‑18 | Millers Falls No. 67 Router Plane |
Rountuits keep arriving, from whence I know not. Got out my MF #67 router plane for a good clean up. There's a bit of oxidation and some crud. I can deal with both, but I ran into something that I need help with. There is an upright threaded rod which has depth adjustment thumbscrew an a thumbscrew that holds the holding bracket that fixes the blade in place. I would like to remove this threaded rod to assure full cleaning and rust removal on all parts of the thread. I don't have a thread gauge at hand; so I can't determine the number of threads per inch. My search fu remains weak. I have not found a web page that provides that information. My plan is to put 2 nuts of the proper threading on the post, lock them together and remove the post. 1) Is my approach OK or is there a better way to do this? 2) Does anyone know the thread pitch for the MF #67, or a URL where I can find that datum? Thanks in advance. Bob Hutchins Temple, TX |
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267125 | John Ruth <johnrruth@h...> | 2018‑11‑18 | Re: Millers Falls No. 67 Router Plane |
Bob wrote: > > I don't have a thread gauge at hand; so I can't determine the number of threads per inch. This sounds like you have a clear need for another tool, namely the thread gage. Clearly, this is a moment that a galoot should relish! Consider that if it is in fact an oddball thread then finding matching nuts may be challenging!!! I’d try-fit nuts of the standard coarse and fine threads for that diameter. If you find a fit, that is your de facto thread gage! Proceed carefully! That rod may be “staked” into the base with a deliberately- distorted thread so that it is a jam-fit. Forcing this to unscrew may leave it as a too-loose fit. Use penetrating oil a few days before you apply torque to that rod. (I prefer Kroil from www.kanolabs.com) It might be best to simply not remove that rod. If all the corrosion & crud are removed from the exposed part of the rod, then removing the rod from the casting might be a case of “don’t fix it if it ain’t busted.” YMMV! John Ruth |
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267128 | "Ed O'" <edo@e...> | 2018‑11‑19 | Re: Millers Falls No. 67 Router Plane |
Bob, 1) Sounds like a workable solution to me 2) I don't have a No. 67 (open throat MF router plane) but do have a No. 77 (closed throat MF router plane). I just used a thread gauge on it and confirmed with a die on the post that mine is 1/4-28. I guess MF standardized on common threads more than Stanley at least for router planes. Ed O' -----Original Message----- From: OldTools [mailto:oldtools-bounces@s...] On Behalf Of RH Rountuits keep arriving, from whence I know not. Got out my MF #67 router plane for a good clean up. There's a bit of oxidation and some crud. I can deal with both, but I ran into something that I need help with. There is an upright threaded rod which has depth adjustment thumbscrew an a thumbscrew that holds the holding bracket that fixes the blade in place. I would like to remove this threaded rod to assure full cleaning and rust removal on all parts of the thread. I don't have a thread gauge at hand; so I can't determine the number of threads per inch. My search fu remains weak. I have not found a web page that provides that information. My plan is to put 2 nuts of the proper threading on the post, lock them together and remove the post. 1) Is my approach OK or is there a better way to do this? 2) Does anyone know the thread pitch for the MF #67, or a URL where I can find that datum? Thanks in advance. Bob Hutchins Temple, TX |
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