Topics

1

General Mach Discussion / Linear Scale on close Loop

« on: May 06, 2008, 01:04:08 PM »

I Installed 2 linear scales on my CNC ROUTER, but I have a question:

1- The Linear Scale works on close loop with MACH3?, feeding the MACH3 and making the movements more accurated. Or the Linear Scale is just for show the position.

2

General Mach Discussion / Moving off Limit switch

« on: May 06, 2008, 12:53:17 PM »

I put 4 limit switch (X++, X--, Y++ and Y--) on my CNC router, but for example: If X++ is triggered the RESET button starts to blink and I can't move to X- for moving off the limit switch?
I read the past posts and someone told to turn on the Limit override, but this is not good because when LIMIT OVERRIDE is on the X axis move + and - destroying the limit switch. ( If X++ limit switch is trigger the X axis cannot move to X++)

Is there a way to move off the limit switch without turn on the LIMIT OVERRIDE?

3

General Mach Discussion / How to config a linear scale?

« on: April 17, 2008, 02:38:12 PM »

How to config a linear scale ? I know the pins on parallel port (A pin9 , B pin10, R pin11) but I dont know where I should put these pins numbers to make the scale works.
I tried to config on Config -> Port and pins -> Encoders/MPG's (A-Port # and B-Port #), but nothing happened.

4

General Mach Discussion / Using linear glass encoder

« on: April 04, 2008, 02:16:34 PM »

        I'm buying an linear glass encoder to use with X and Y axis (5um , A and B TTL signals). Someone knows if Mach3 can read the linear encoder outputs with I use an feedrate value of 500 units/min (mm/min)?

         I'm afraid of that using feedrate values such high like 700mm/min, the linear glass encoder output frequency (A and B) too high, that parallel port can't read these signals.