Topics

1

General Mach Discussion / Spndle Calibration

« on: September 25, 2010, 12:23:14 PM »

I am having a lot of issues with the spindle calibration on my MaxNC lathe. The Auto calibrate feature does not seem to work properly with my setup.

Does anyone know where the calibration data is stored? I tried looking at the turn XML files but I can not find anything in there. I was expecting some sort of table the had PWM to Spindle RPM values. I also looked in the registry and found nothing there as well.  was hoping a table existed that I could edit manually to correlate PWM outputs to my spindle rpms. Does anyone know the procedure for a manual calibration?

My spindle will not run slower than 300 RPM and has a max rpm of 3000. The auto calibrate does weird things when the spindle is not moving at the low speeds so I thought I would set the pulley speed configuration to 300 to 3000. When I do this the auto calibrate will not even work. I get errors saying spindle speed to low, using minimum and the program does not perform the sweep.

I was using version 2.63 so I tried and upgrade to 3.042. Now Mach3 can not read my index pules. No matter what the spindle is running at it always indicates a spindle speed of 148rpm. Does anyone know why this may be?

Thanks

2

General Mach Discussion / Can't get enable2 to work in Turn mode

« on: June 22, 2008, 01:10:36 AM »

I need to use a second enable line for my lathe. For some reason when I activate enable2 and give it the port and pin I want to use, the enable2 led will not turn on in the diagnostic screen nor does the output change state when I reset the machine. This works fine when I run Mach3Mill but does not work when I run Mach3Turn.

Can anyone suggest what I may be doing wrong?

Thanks
Shawn

3

General Mach Discussion / Setting up MaxNC T2

« on: June 19, 2008, 11:49:15 PM »

Hello,

I have purchased a MaxNC T2 lathe. I would like to set this up on Mach3 2.63. I found the pin outs in the files section of the site and watched the installation videos and have a few questions. The lathe does not have the A and Y axis but it does have the spindle encoder on pins 4 and 5 and a threading control on pin 3. I assume these are outputs from my controller and inputs to the PC. The normal MaxNC Mill with Y and A axis would have these pins as outputs from the PC.

I assume I have to use the MaxNC CL mode within Mach3. When I view the video on setup it said if you choose this option you do not have to select the pins used by the motors as this is done automatically in this mode. I believe this will not work with the lathe as the program will be sending quadrature signals to pins 2 through 5 which will conflict with the spindle encoder on those pins. Also I believe PC parallel port 1 can not use pins 2 though 9 as inputs.

Its its possible to set up this lathe using port 1 only? If not, I was planning on breaking up the cable into two and running the thread control and spindle encoder signals to a second parallel port. This is not optimal but would this work?

Also Does anyone know how to control the direction of the spindle on this lathe? I could not tell from the pin outs what would do this? Is it a signal pin for direction or a specific PWM waveform?

Also what is the threading Control signal for and can it be used in Mach3. Can Mach3 synchronize the spindle to cut threads using G76?

Sorry for all the questions.

Shawn