I made one file handle and used 3/4 copper pipe for the ferrule.
But now it looks too nice to throw in the toolbox but I did anyway
I got it pretty close on the lathe but to get the final fit I used
180 sandpaper so the ferrule just barely fit.
Drilled the first hole to match the small end of the file then
drilled part way with a bit that was a little smaller than
the wide end.
Held the file in one hand and beat on the other with my carving
mallet. This was a small flat metal file. 1/2" wide and 10" or so
Sprayed it with a few coats of lacquer and all's well
I stood out in the sun and sprayed all 3 coats quickly
rotating the handle for quick drying and no running.
Don't hold your breath I have a nice camera but I barely use it
for it's intended purpose let alone anything else. I do need
to do better at this though. I may sell on etsy so will have to
take more. Doing it well takes time
If you get the ring just to tight - won't slip on -
that is perfect. Heat the ring - it expands and slip it on.
It will cool and compress the fit. Might have colors on it,
might want to polish them out.
Yes - nice to have a old convection oven in the shop for shop work.
I cook welding rods and cook rings to fit metal and wood.
On metal, the inside part is cooled and the outside is heated.
Metal - Slip it down a shaft and then into a ring area - trapped ring.
On Thursday, January 22, 2015 at 11:31:28 AM UTC-6, email@example.com wrot
Similarly, I recall, when working offshore (college days), we'd have to cha
nge the brass bushing in the top pulley of the crane. We'd keep the bushi
ng in the freezer, for it to shrink, a tad, allowing for better installing
into the tight "ring" of the pulley. Once installed and it warms up (expan
d), it would further snug itself onto/inside the pulley wheel.
The concept has been around for ages.
Pic of a (brass?) bushing inside the pulley wheel:
Mom did it right - the lid is a CUP. Cup expands and the threads loosen.
Rods get hot and lengthen and shrink in diameter.
Balls (bearings) get hot and get larger, but a close fitting ring will
expand faster. - an old Physics lesson. Linear expansion of the ring
and cubic expansion of the ball.
On Thu, 22 Jan 2015 21:11:29 -0500
It'll burn my fingers tho
I always go the simple route, well not always but I strive
lathe->little sanding->repeat until it almost fits
i also added a slight chamfer to the ferrule lip inside
the wood was very dry too
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