Potty Over Crank Wall Engine

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Rob.Wilson:
:clap: :clap: :clap: :clap: very nicely done Stew ,,,,,,,,,,,,,,,,, :thumbup:

Rob

sbwhart:
Thanks for your support Guys, and thanks Stuart and Marv for your ball drilling suggestions they will both work :thumbup:, as I'm using phosphor bronze balls the likely hood of damaging them in the chuck is very high I opted for the method suggested by Marv.

Had a rummage through my bits and pieces box and came up with this I've used this for all sorts of odd fixtures, and it will be just the ticket for the ball job.

So gripped it in the vice and fly cut the face up nice and flat, then drilled a bit of ally bar for a top clamp, fixed it to the base, locked the x and y axis of the mill. And drilled a 3 mm hole in the clamp into the base.

Then with a big centre drill drilled a big cone into the base for the ball to sit in.

Clamp the ball in the fixture centre drill followed by an M2 tapping drill and tap, I used the chuck to guide the tap to keep it square.

Cleaned things up and fixed the pins and balls with a tiny bit of supper glue.

Looking good

Scale looks about right :thumbup:

Pleased how that turned out.

:D

I was kind of working from drawings and from gut feel for the job, I'll bring the drawings into line with what I ended up with and post them her along with the other governor designs I came up with some of you guys may be able to put them to use.

Stew

saw:
:clap: :clap: :clap:

klank:
Stew,
I was waiting for this latest chapter before posting.
Thanks for such a clear write up of the governor - I have one to do for the Side Rod Engine - but the plans for it are a bit difficult to follow.
Seeing you do it gives me the impetus to have a shot now.
As regards drilling the balls - I was told of a set up for this, where a scrap piece of steel or brass rod of greater diameter than the ball(s) is set up in the lathe chuck and then drilled from the tailstock to a hole diameter and depth of slightly less than the ball.
The ball is pushed into the "cup" recess and can then be drilled/tapped from the tailstock without moving it.

What a lovely engine you are making.

Best wishes

Peter

NickG:
Stew, looks great - scale looks spot on!

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