Topics

1

General Mach Discussion / Increasing feedrate when threading

« on: November 03, 2013, 11:05:45 AM »

Hi!

I am having a problem when I am cutting threads on my lathe.

I have been using the lathe threading wizard and it has worked perfectly.
I build myself a new cnc-case with new Gecko drivers and all the electronics etc. and now I am running into a big problem.

I am cutting an 1 mm thread and the first pass goes smoothly at 1 mm / revolution. The machine goes to the start again but the second, third...  pass is at 2.11 mm / revolution?

Could it be an index problem? I have steady readings from the sensor to Mach.

Regards
  Per

2

General Mach Discussion / C3 - Index Pulse Card

« on: July 04, 2012, 05:37:03 AM »

Hi!

I will try to post this again, my first post seems to have crasched when I uploaded some pictures to it.


I recently bought the C3 - Index Pulse Card which I will use for spindle speed control into Mach3.
But how do I get the signal into the PC and Mach3? Can I just open the parallelport-cable cover and solder the wire to a free input pin and set the right pin into Mach3 settings?

I have a Optimum CNC controller III, http://www.optimum-machines.com/products/cnc-pc-controls-complete-and-adapter-kit/6/cnc-controller-iii-and-vi/index.html, and it does not have any inputpins / connectors to it.

This is what the controllercard looks like inside, it also have the cards for each axis and the main power supply. Is there any chance that I can solder the signal from the C3 somewhere into the controller?

Regards
  Per

3

General Mach Discussion / C3 - Index Pulse Card

« on: July 03, 2012, 03:34:20 AM »

Hi!

I just bought the C3 - Index Pulse Card and I will use it to get the index pulse from the spindle.
But how do get the signal to Mach3??

In the manual to C3 it says:
"Easy connections. Just put the Photo-Transistor in place, connect the board to the power supply, and attach the signal output to an input pin from the parallelport."

Can I just open the cover to the parallelport-cable and use a free pin and set the correct pin in Mach3?

My controller, http://www.optimum-machines.com/products/cnc-pc-controls-complete-and-adapter-kit/6/cnc-controller-iii-and-vi/index.html, has no input pins.

Regards
  Per