Lathe page 5
June 27 I spent most of the day milling a pattern out of foam for the compound slide that gets mounted to the crosslide
I spent some time writing the program and forgot to use the
radius on the center hole the first time so had to redo it.
But I got it right the second time
Here the machine is clearing the relief area after cutting the wear pad
here I'm cutting the wear pads that will rest on the crosslide ways
Heres the pattern sitting on the crosslide
Getting ready to cast. when using the lost foam method be
sure to use DRY sand and vibrate the box so that the
sand gets in and under every bit of the part. Just
use a hammer and bang the side of the box and you can see the sand
move around.
I am so impatient the part had not cooled 10 minutes and
I pulled it from the sand. I cut the sprues
within another 10 minutes and had it sanded and smoothed
out before I could hold it in my
bare hands. As You can see in the background this was not my first attempt,
and I made another
after this with the sprue in the light end of the compound and placed on end
in the flask so the
aluminum had a straight shot to the heavy end.