Messages

1

Finished Screens / Re: Mach3 2010 Screenset - Now available

« on: October 16, 2018, 07:01:54 AM »

Absolutely brilliant Gerry, many many thanks for an excellent product and exemplary support

Regards

2

Finished Screens / Re: Mach3 2010 Screenset - Now available

« on: October 16, 2018, 03:59:44 AM »

Hi Gerry

Been using your screen for 2 years now and am very happy. A quick question if I may. Would it be possible to modify the tool change sequence so that the tool is lifted more than the present 0.05", say 0.150. My Z has a lot of backlash which cant be removed so although I compensate in my programs, during tool change the tool doesn't always lift from the probe sensor.

Many thanks for a fantastic screen

Chris

3

SmoothStepper USB / Re: Weird problem with one axis only

« on: April 18, 2017, 06:13:01 AM »

Cheers buddy, much appreciated

4

SmoothStepper USB / Re: Weird problem with one axis only

« on: April 18, 2017, 05:21:13 AM »

This sounds interesting Tweakie, the link sounds exactly like the symptoms I'm seeing.
Can you get these dampers commercially or do I have to resort to more metal bashing?
Thanks for the reply, my head hurts from banging it against a wall!!!!

5

SmoothStepper USB / Weird problem with one axis only

« on: April 17, 2017, 11:23:11 AM »

I hope that someone can shed some light on a peculiar problem I have with a new build CNC Mill.

First the details

Running ESS, plugin version ESS_Mach3_160630_u4f1b
CNC4PC C25S BOB
Mach3 version 3.043.062
Longs motors 34HS5435C-O2B2
DM860A motor drivers set with 5000 steps / rev
4 core CPU Windows 10 with 16GB of memory

The problem

After carefully setting up the system X and Y axis are working fine and are very accurate however, Z is causing me real problems. The motor is completely isolated from the machine so there are no mechanical issues. I have even swapped the complete drive chain Z for Y and the problem remains with Z so I know there’s no issues with the ESS, BOB, power supplies or ESS configuration.

The problem is Z will run flat out in both directions no problem. It will run feeds up to 500mm/min and 1000mm/min up to max speed without issues HOWEVER, between 600 and 900mm/min the motor stalls with a horrible scream.

As I said, the motor is on the bench and with swapping axis, the problem remains with the Z motor. The only other items which might have a bearing is that with very slow feeds (1mm/min up to 100mm/min) the motor sounds very rough. I even tried an experiment where I set an extremely slow motor acceleration and on ramping up to maximum speed, the motor seemed to go through very rough bands until it got to 100mm/min. From 100 to 500mm/min it smoothed out until it got to about 600mm/min and the motor promptly stalled and screamed until a commanded speed of about 1000mm/min whereupon it took off without any further issues up to maximum speed.

I’m beginning to suspect the motor (and yes, I have checked the wiring)

Thoughts would be appreciated.

Thanks