no motor movement - taig micromill

[connors934]

Hi all
Here's what I have:
Taig Micromill, a couple of years old, just upgraded to mach 3, xp computer, pentium III, 40 g hard drive, mostly empty

the motors are not responding to the keyboard jog.

Printer port is 0x378

The pinouts are set to

axis | step pin |  dir pin | dir lowactive |  step lowactive  | step port |  dir port
x       3           2          active low       active low                   1           1
y       5           4          active low       active low                   1           1
z       7           6           active low       active low                   1           1

Neither sherline mode or non works.

No motor response, except they twitch when I turn the computer on.


any suggestions?

Chris

[connors934]

Here is where I got the info for the pin outs
http://www.cartertools.com/mill.html

Thanks
Chris

[Brian Barker]

You also should try Sherline mode... ther drivers for the Taigs are a bit slow

[connors934]

Here are photos of the inside of the controller
One of the circuit boards says 2003
http://flickr.com/photos/connors934/423219757/
http://flickr.com/photos/connors934/423219639/

If this is not compatible with mach3, will it run with an older version, mach 2 or 1?

thanks a bunch
Chris

[Brian Barker]

do you have the pinout for the drive?

[connors934]

These are the pinouts I am using, info is from Nick Carter - http://www.cartertools.com/mill.html

The pinouts are set to

axis | step pin |  dir pin | dir lowactive |  step lowactive  | step port |  dir port
x       3           2          active low       active low                   1           1
y       5           4          active low       active low                   1           1
z       7           6           active low       active low                   1           1

Neither sherline mode or non works.

No motor response, except they twitch when I turn the computer on.

Thanks
Chris

[az7733]

My step pins are even and dir pins are odd.

Robert

[Brian Barker]

That would be a problem

[connors934]

The motor tuning settings that seem to work best are:

- all axes (except 4th, which has different value needs)

Step 32000 Vol 9.654 Accel 2.25 Pulse 0 Dir 0

- jog rate % 25 (it was set by default at 95%)


This allows it to jog from the keyboard, but it doesn't run code properly.
The scale is off x y and z and the speed is faster than the steppers can handle when it runs a file.

Thanks
Chris

[Brian Barker]

You need to set your Max velocity to about 25% of what it is now. You do this under your motor tuning. If you can't run at 100% jog you will not be able to run a G00 (Rapid) move.