Messages

1

General Mach Discussion / HyCNC-4P

« on: July 06, 2014, 10:55:51 PM »

Recently purchased a HyCNC-4P (USB two printer port adapter) and have had no luck getting it set up has anyone had any success?

2

General Mach Discussion / Re: Reference all home

« on: February 27, 2013, 09:45:12 AM »

Grounding the cables did not solve the problem the Debounce Interval did solve the problem is their a negative to having the Debounce Interval at 1500?

3

General Mach Discussion / Re: Reference all home

« on: February 27, 2013, 08:03:10 AM »

Question should the pairs be individually shielded or is an overall foil shield acceptable?

4

General Mach Discussion / Re: Reference all home

« on: February 27, 2013, 07:49:11 AM »

I am using 18 gauge shielded cable on all the stepper motors. All of the cables from the controller to the stepper motors are approximately the same length about 25 feet. The cables have an overall shield the cable is a 3 pair plus a drain. I am using a 22 gauge 4 conductor shielded cable on all the home switches. The shield is not currently grounded on either set of cables I will try grounding it before I change the values.

Thank you very much for your help. 

Question should the pairs be individually shielded or is an overall foil shield acceptable?

Parnell

5

General Mach Discussion / Reference all home

« on: February 26, 2013, 08:26:40 PM »

I am having trouble with my system referencing all home. There are no LEDs lit on the diagnostic screen for the home switches. When you test the switches all the lights on the diagnostic screen work correctly. When you reference all home the motors move and inconsistent amount and then the DRO is set to 0. The x,y,z  never reach the home switches. When I turn the power supply for the stepper motors off the DRO's count until the limit switches are manually tripped and then the DRO's are zeroed.

Thank you for your help.

6

General Mach Discussion / Re: X and Y Drift

« on: April 21, 2012, 11:23:47 AM »

Thanks for the help

All are 1200 oz/in cables with shielded 16AWG
No gearing and all couplings tight
I think the screws are 8 turns per-inch (I can check Monday and let you know with the micro stepping)

Parnell

7

General Mach Discussion / X and Y Drift

« on: April 21, 2012, 10:56:37 AM »

Hi All

Recently I have built a cnc router and am having an issue with 'drifting' + in the X axis and - in the Y axis. If I calibrate and set the steps per inch with a dial indicator and tell it to move 1" it moves .990 and I enter that number and click OK. Mach3 tells me how may steps per unit it is using and I accept the value. When I then ask it to move +X 20" it moves +20.010". When it goes back to home the X DRO is 0.000 but the location is +X 0.010 if i repeat this the next move goes to +X 20.030" and so on. At the end of the test the DRO's are correct but the location of home is +X0.040. This same thing happens in the Y axis.

Long program run, bigger drift. Any ideas?

PC running windows XP
The computer is dedicated to Mach software only.
All axis use stepper motors.