Topics

1

Mach3 and G-Rex / G-Rex 4th axis rotation limit HELP

« on: January 07, 2018, 04:01:44 AM »

Hi All I need help.
I have Mach3 v3-042-020 and G-Rex  with the latest plugin running 4 stepper motors. Has been running sweet  for about 10 years but I just discovered my rotary table wont turn past 2790 degrees, once it gets to 2700 it starts counting down but table still rotates in the same direction ?
Updated to Mach3Version3.043.066 hoping it may fix the problem but no luck.
I can get the unlimited rotation  if I run without G-Rex, so I suspect its an issue with Grex not mach3. Spent a good 6 hours trying different settings to no avail.
Has anyone had any luck with rotation beyond 3000deg, I need to get to 7920deg. (22 full turns).
I have attached my xml

2

Show"N"Tell ( Your Machines) / Spindle speed increaser, belt drive x 4

« on: June 15, 2011, 06:04:38 PM »

Belt driven, water cooled spindle speed increaser using 4 deep groove ball bearings. Increases spindle speed x 4. Works a treat
Acad file is 2004dxf.

3

Mach3 and G-Rex / G100 VFD Spindle speed Fluctuations

« on: July 31, 2009, 06:12:40 AM »

Can anyone help with this one?
My setup is - mach3mill latest lockdown version, G100 with latest plug in, DigiSpeed-gx controlling VFD.

The rpm of my VFD controlled spindle motor is changing  under heavy load, so much so that the steppers slow down due to the extra load (I think).
I did a couple of tests where I could get the slowing down to happen while making a heavy cut with the jog button and spindle set with M3S2500.

The result- speed goes up and down allmost stalling, I noticed on the G100 monitor page the analogue out would drop from 2.3 to 1.2 when the fault occurs.

The problem  does not appear until the cuts get heavy,

Did the same test but this time the spindle was controlled manually (VFD with a pot)  and there was no speed change, I doubled the feed rate  up to 300mm/min with no sign
of a slow down.

Could my feed rate override macro pump have something to do with it?

Sven

4

General Mach Discussion / Memory leak win2000 mach3 v3.041

« on: July 01, 2009, 05:22:35 AM »

Anyone running win2000 with mach3 and g100 have any memory leak problems?,
it eats it up until I minimise the mach screen and then it lets it all go then the eating starts again.

5

Mach3 and G-Rex / Spindle RPM indicator not working with G100

« on: April 13, 2008, 12:40:40 AM »

Can anyone help me with my non working spindle rpm indicator (dro39),
I have a hall effect sensor going to input 1 on g100 and the input led is flashing as it should,
the index led on the diagnostic screen blinks every now and then.
I have index enabled in ports and pins and have tried active low and high,
 just finished a full reload of mach3 hoping it may solve the problem, but no change.

Sven