Ken Powell wrote:

Paul,
I have 2 motor mounts to build: 1 for my RV-4 and 1 for my Minimax.
I built a couple of mockup mounts with 1/2" PVC water pipe and
found that if I was real careful I could get a really close fit
with my Craftman bench grinder with the final trim performed with
my 4.5" portable grinder.  I also fitted a couple of pieces of .049
4130 with the same results.  However, I am still considering buying
a cheapie tubing notcher from Harbor Freight Tools to use in my
drill press since I have 2 mounts to build.  I wish I knew whether
these were of decent quality or not.  BTW, I am going to build both
of these mounts this spring; I just recently bought the tubing.  I
am finally back to regular hours at work so I should make some
progress.  I almost have the Max ready for cover and should finish
it, but I love messing with the RV-4 rotary installation.  The
empenage is finished and the left wing is started on the RV-4, so I
have a long way to go to get it flying.  Actually, my biggest
problem is my wife's projects which never seem to get done.

Ken Powell

I did not know Harbor Freight had a tube notcher. I will pop over there
tomorrow and take a look. I'll let you know how it looks.

Paul Lamar

My wife came up with the bright idea of using the metal turning lathe
to cut notches for my fuselage tubing. Put the hole saw in the chuck
and then  weld up a piece of angle iron in a tool holder. Works really
slick.
Lonnie

 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org