On Thu, 30 Jul 2015 11:16:38 -0700, wrote:

On Thu, 30 Jul 2015 06:11:55 -0500, Pete Keillor
wrote:

On Wed, 29 Jul 2015 09:59:56 -0700 (PDT), PCS
wrote:

On Wednesday, July 29, 2015 at 12:34:09 PM UTC-4, Pete Keillor wrote:
On Wed, 29 Jul 2015 07:44:58 -0700 (PDT), PCS
wrote:

On Wednesday, July 29, 2015 at 10:13:41 AM UTC-4, Pete Keillor wrote:
snip

Pete Keillor
Greetings Pete,
I bought the MLA kit too, some time ago. How do you like yours? I
built mine but made some mods. I really like mine. With the vee belt
off I can grab the file and by pulling and pushing cause the drive
shaft to rotate, even though Scotch Yokes are not made to run
backwards. The steel part of the yoke, the part with the channel in
it, I made from tool steel and then hardened, ground, and lapped to a
very good finish. The bronze part that slides in it I made from
aluminum nickle bronze, also ground and lapped to a high finish. With
almost no clearance, just enough for oil, the mechanism works very
well. I also used a bronze bushing with an oil groove in it for the
drive shaft and a lip seal to keep the oil from leaking past the end
of the bush. On the inside of the main casting I machined a hole with
a little reservoir that feeds the drive shaft. The reservoir is filled
from oil splashing inside. The basic design of the filing machine is,
I think, very good and I like it a lot. Oh, I also added a couple
taper pins that lock the table square with the supports and hence
square with the file.
Eric

I like the kit, although machining cast iron is nasty. I did it
pretty much as drawn. Decided to try a flat belt just for fun.
Working on the drive pulley now, won't take long. Crowning with a
taper attachment is easy.

I bought a two piece pot collet for finish the cap, I was getting
frustrated trying to chuck the mostly finished cap in the four jaw.
But now the collet body won't thread into my homemade draw tube,
although it will into the ones for the Hardinge mill. I'm going to
have to open up the threads on the homemade one a little, which I hate
(re-registering the threading tool on an internal thread). Oh well,
if I mess up, I have the stock for another.

After that, it's paint it and run. Oh, and make a couple files.

Pete Keillor