Searcher7 wrote:
On Apr 11, 8:32 pm, "Ed Huntress" wrote:
"Searcher7" wrote in message

...



I came up with a new design for a video game joystick. The problem
with the original design that I am attempting to improve upon involves
wear of the metal parts that move across each other.
My goal is to A) create it so that the parts that move against each
other are inserts that are easily replaceable. And B) increase the
wear resistance through use of a better metal.
The action of the up/down joystick causes wear at the end of a rod
that turns inside of a matching diameter hole.
If you look at the picture of the joystick assembly in this link, you
will get an idea of what I'm referring to.
http://i290.photobucket.com/albums/l.../Joystick%20Pr...
I know that the easily machinable metals tend not to be wear
resistant, but I'd appreciate ideas on the best metals to use for
something like this. Metals that I can machine on my mini lathe or
mini mill.
Thanks a lot.
Darren Harris
Staten Island, New York.
Can you show us some close-ups of the actual wearing parts? Especially so if
you have some disassembled. That would make it easier to judge.

--
Ed Huntress

Ok, I just took a picture of the two key parts.

http://i290.photobucket.com/albums/l...MG_0442.jpgThe
small "knob" protruding from the piece on the left fits into the hole
of the large piece on the right.

When in use it only turns within about a 20° range, but over the
course of 100s of thousands of times the hole in the 1/16" wall gets
larger.

Thanks.

Darren Harris
Staten Island, New York.

Looks like a good place foe a small spherical bearing.

--
Steve W.