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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

Recent Bios FAQ