Messages

1

General Mach Discussion / Re: inconsistant dial gauge readings on axes

« on: April 28, 2010, 04:38:25 AM »

Thank you everyone. I didn't expect so much help. It's great to know there's lots of people around to help you!
In order to answere the above questions I'm going to go over everything, and when I can I will get back to the forum let you know how I went - and be better equipped cope with answering your questions relating to my problems.
Thank again

2

General Mach Discussion / Re: inconsistant dial gauge readings on axes

« on: April 25, 2010, 05:38:15 AM »

Thanks for responding Tweakie,
I completely stripped down the X and Y tables, removed the double ball nut blocks and remove the balls; washed them in kero etc. I elongated the holes in the Y table that the y nut housing is fixed to -  due to side-pull on the Y lead-screw. Then put sufficient loading on the backlash adjustment screws etc.
The same procedure with the Y axis. The Y axis ball nut housing was a little loose! The lead-screw alignment was acceptable though. I made sure the loading on the backlash adjustment was acceptable and reassembled it. Also I made sure the gib strips were assembled as Promica suggested and oiled the system.
When I checked the backlash by turning the pully - without the motor belt - all seem well enough to reassemble.
I don't know why the X axis is still a problem. I did notice today that when jogging by very small increments the gauge needle behaved quite strange at times. As I incremented back and forth while the gauge needle was connected to the fixed block (mag. base V block) the needle would persist to continue (very slightly) in the same direction even though the direction was changed. I'm therefor thinking a pulsing problem (maybe pulse skipping) is occurring. But I'm new to the game and at a loss to know what's up.
I very much would like to find out and and try to correct it.
Thanks again 
 

3

General Mach Discussion / inconsistant dial gauge readings on axes

« on: April 25, 2010, 12:47:25 AM »

hi,
I have installed a kit from Promica for the Super X3 Mill. On Testing the accuracy after install ,the readings (gauge indicator) indicated a bad backlash problem. I was advised the check the alignment of the ball nuts, leadscrews etc. and find any inconsistencies and remedy them. At the same time to install a dedicated PC running Mach 3 only and checking it with the Drive Test software. I did all this. The slides run smoothly and no virtually no backlash exists The readings now indicate practically zero on the Y axis but almost no change on the X axis.
I've tried to use various settings in the config/backlash settings in the correct procedure and motor velocities etc. I'm thinking that the problem lies in the software! I don't think the controller is faulty.
Can anyone please help?

4

Forum suggestions and report forum problems. / Re: Mach 3 under Windows 7

« on: April 22, 2010, 05:45:54 AM »

Hello
I'm new to CNC and I've been trying to sort out the problem on my Promica kit using a dedicated computer running windows 7. I thought the problem was due to backlash. It appears that It's related to pulsing problems. Running Drive Test, the spikes are too high and random. I've tried to partition the hard drive and install XP - the mother board doesn't want to know! I guess I'll have to give up and get another computer that will run XP. Any advice out there?