Minnie TE Long term project

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Joe d:
Just sing out when you need that gear, Rob!

Some progress now, instead of re-working stuff....

Moving on with the gear selection lever. Happily all from the "come in handy" pile of off-cuts from other things....

shaping the bracket that bolts on to the back plate

then indexed it around the drill bit that made the hole to remove the bulk of the unwanted metal before finishing rounding it over with a file

Started the forked lever by boring out the end of the stock

then through drilled both ends, and silver soldered in a bit of drill rod

Cut out the middle bit and filed the pins down to size

milled away a bunch more of the parent stock

turned the handle in the Taig lathe

soldered the handle onto the end of the lever, cleaned everything up a bit, attached the fork to the bracket with a temporary cap-screw while I wait for the die to thread the real pivot pin, and bolted it into place

Next up will be the water gauge.

Cheers all, Joe

Joe d:
Got the water gauge mostly done now (haven't acquired the glass yet :Lol:)

turned a bit of bronze, and threaded one end, then screwed that into a slug of ali in the 4jaw.
This was pretty unstable at the length sticking out, so ran a temporary centre out of the tailstock
and took really light cuts. Used a ball end mill to form the transition from the shaft to the base of the part

once all the turning was done, chucked it up in the Taig to drill out the steam passage (the second time around. First time,
drilled it the same time I threaded the end, and it sheared off when I tried to do the turning...not enough meat left for the
stresses imparted :doh: note the high-tech depth gauge on the drill bit. Tolerance of +/- 1/8" on this hole....

these parts have tapped or threaded spigots coming off them, this was straightforward turning drilling and threading with a die,
and then assembled with some flux and silver-soldered

and then into the pickle, and do it all again for the upper end.

The lower fitting has a blow-down valve so turned and threaded a bit of stainless (started out life as a 1/4"bolt) as a valve spindle. The big lathe can't handle stock this small in it's 4 jaw, so for a previous project I had turned a spindle that mimics the spindle nose of my Taig lathe so I can use the collets that fit that lathe in it's big brother

Turned, drilled, tapped, knurled, and parted off a bit of 12L14 for a handwheel

Made a really small locknut for the handwheel in the Taig

finally, made up the nuts that will secure the glass tubing

and after some clean-up with a wire wheel in the dremel, put all together, and put it in place. will work better once the tubing is there!

and that's it for now!

cheers, Joe

RobWilson:
HI Joe

Looks like your making good steady progress :thumbup: :clap: :clap: have you threaded anything 16BA yet :palm:

Rob

Joe d:

--- Quote from: RobWilson on February 16, 2015, 05:02:35 PM ---HI Joe

have you threaded anything 16BA yet :palm:Rob
--- End quote ---

Hi Rob

Happily, to date my smallest adventure in tapping has been a 0-80.... which at .06" is about double the diameter of 16BA?

If I need any doing, I'll just mail them to you, your lathe is geared for screw cutting isn't it? :lol:

Cheers, Joe

RobWilson:
:lol: :lol: :lol: I cant see 16BA Joe :Doh:

Rob

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