Paul,
 It looks like Jon from Pico contacted you. He works alot with EMC and

has a nice setup. Go to http://www.usdigital.com/products/e5/  look over these to see if this may fit the bill, 500 count differental encoder. This will replace the resolver. Another direct hookup is www.camsoft.com, a little more pricey. I know you do not like Windows,

but the other option is www.artofcnc.ca  . You might check with the guys on http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ to see if there

is anyone close to you, this is the EMC group. Richard

www.camsoft.com There appears to be something wrong with this one.
Perhaps it is misspelled.

www.artofcnc.ca this one seems to be stepper only. It is not just
because I am not fond of Windows it is because Windows is not a real
time operating system while Linux RT is. You don't want Windows stopping
in the middle of circular interpolation and going off and doing
something else. Makes nasty marks in the part.

Paul Lamar ...No rotor no motor.


I converted a mini lathe to CNC and I bought the Mach 3 software from
Artofcnc. The software installs low level drivers that control the
parallel port hardware before Windows get ahold of it, and it works very
smooth once properly set up. You will have to disable some Windows stuff
like the automatic screensaver and sleep modes. You would want to use a
PC dedicated to the mill anyway so that should not be a problem. The
Mach3 software is free to try out to see if you like it.

A year ago, I converted a Cincinnati mill that had resolvers and SCR
motor controls. We had to replace the resolvers with encoders which
required machining some parts to adapt, but the encoders are cheap and
work excellent. We retained the Getty motor controller and used  a Rutex
drive to go between the PC parallel port and the Getty drive. It took a
while to get everything tuned up but finally got it working great. If I
wasn't so busy at work I would come help you Paul. It's a fun project,
almost as fun as building and flying a rotary.

Chuck Dunlap

I did not know you did this kind of stuff Chuck. You are
multi talented guy.

My resolvers are mounted on the back of the servos geared off the
servo shaft. Any tips for finding encoders that will fit?
Here are a couple of pictures. It would be easier if I could
find a resolver to count box.

BTW have you decided what you are going to do with your airplane?

Paul Lamar ...No rotor no motor.

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