Paul

are you sure you want to use 7075??
I have a great source for 7050 with certs cheap cheap cheap it's all
boeing scrap.
maore than you will ever use. My machine is not being used at the moment.
I can machine the plates and squares
if you send me the drawings.

Tony

I'll get back to you when I get back from check rides Tony.
What dwg format can you use. We might try a built in planet
carrier on the 4 inch aluminum shaft.

Perhaps Ed needs something right at the moment?

Paul Lamar


This picture will give you a feel for the strength and robustness
of this type of four inch diameter aluminum prop shaft  PSRU.


Paul Lamar


That looks like it otta handle it. The shafts on the 2.85 are 4.17", which
leaves me with perhaps a .020 wall thickness; if I edm for 3/8 bolts. I
could likely find 9mm bolts and end up with about .030". I don't know what
the limit is for the lazer, or the minimum needed to provide a good surface
for the pinion bearings to ride on.

Ed Carver


I have opened an order with Sunshine metals. Order pending receipt of in
house credit app. and fund transfer. The base price for 28 inches of 4.25"
7075 t73 round bar is $205, of which you want 14". Tax and shipping will be
added to the end total.
This company will not let me pick it up directly:(

Ed Carver


OK Ed I am in for half.

Paul Lamar