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Messages - cairo2nz

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1
General Mach Discussion / z axis moving to far
« on: October 18, 2010, 08:13:31 PM »
Hi there,
First posted this in wrong place in Turn.
I have a small problem that is probably my own doing but I can't see how to correct it.I can be cutting wooden gears or any other profile fine for a few days, then for some reason  next time I try to start the Z axis runs to max plus. Nothing I do will stop it running to max.After messing around with mach3 for ages it will start behaving itself but I don't know why. Can anyone suggest what I am overlooking and how to correct problem. I am not all that familiar with mach3 as yet.
Thanks
Bernie Byers :-\

2
General Mach Discussion / Re: v3.042.033 still the best for turn?
« on: October 18, 2010, 07:55:34 PM »
Hi  there,
I have a small problem that is  probably of my own doing but I can't see how to correct it.I can be cutting gears or any other profile fine for a few days , then for some reason the next time I try to start the Z axis always runs to its  plus max instead of the program clearance say .5"nothing I do will stop it running to max .after messing around for ages it will start to be have itself. But i don't know why.Can anyone suggest what I am overlooking
Thanks
Bernie Byers :-\ 

3
General Mach Discussion / Re: limit switch triggered
« on: August 11, 2010, 02:47:15 AM »
Hi Angel tech,
Thanks again for your input, haven't had any trouble since i followed your first suggestion. As I mentioned before I put a .1 cond across the limit switch on the c10 and one across the estop terminals. saves me more hours
 of frustration
Best regards
Bernie.

4
General Mach Discussion / Re: Z stepper movement
« on: August 09, 2010, 10:23:12 PM »
Hi Rich thanks for your suggestion, here is what I have done.Removed z and x axis plugs
plugged x axis into z and typed in command g0 g20 z1, stepper moved approx 1/4" altered motor tuning by 1000 steps stepper responded to an increase in movement.
Next removed removed x plug from z axis and plugged z into x typed in same command  movement 1/4"changed motor tuning steps by 2000  movement still the same.??
Before I reconnected the steppers I rewired the Z axis one and changed over a pair of wires reversing it. on start up it moved 1" i thought my troubles were over when I went to calibrate it it reverted back to same problem. no response to motor tuning.looks like the stepper motor might be the problem what do you think?The DRO readout register the correct amounts.
Thanks again
Bernie

5
General Mach Discussion / Re: Z stepper movement
« on: August 08, 2010, 08:12:05 PM »
HI TWEEKIE,
SPENT A LOT OF TIME TRYING DIFFERENT IDEAS BUT NOTHING HAS WORKED. Z STEPPER STILL ONLY TRAVELS SAME AMOUNT NO MATTER WHAT MOTOR TUNING AS I MENTIONED BEFORE  X AND Y ARE  OK AND RESPOND TO ANY ALTERATION IN MOTOR TUNING.HAVE  ANY OTHER MEMBERS HAD A SIMILAR PROBLEM?
THANKS
BERNIE

6
General Mach Discussion / Re: limit switch triggered
« on: August 06, 2010, 07:14:38 PM »
Thanks angel tech,
yep i used ceramic ones.
Regatds
Bernie

7
General Mach Discussion / Z stepper movement
« on: August 06, 2010, 06:34:27 PM »
Hi again,
I fixed my limit switch triggering problem thanks to reply's from three members, everthing appears to be working fine except the z axis, doesn't mater what values i put into motor tuning the axis always moves the same amount. Enter 1" moves 1/4" 4" moves 1"No problems with X and Y What am i overlooking ?
Thanks
Bernie

8
General Mach Discussion / Re: limit switch triggered
« on: August 05, 2010, 06:13:30 PM »
Thanks  Tweekie-Fastest1 and Ezcyclone for your answers,I have the screened wirers earthed at one end to the frame. I connected a .1mfd cap across the limit and stop switch terminals on the Bob as suggested  this fixed the problem straight away. I noticed that when the limit switch trigger error happened the led on the diagnostic screen didn't flash this made me think it was some other fault.
Thanks again
Bernie Byers

9
General Mach Discussion / Re: limit switch triggered
« on: August 04, 2010, 03:39:11 AM »
Thanks tweakie,
I will try the condenser I have screened cables from the micro switches, but I earthed them one end of each to the frame of the router. I will change them to be earthed at the controller and see what happens.
Best regards.
Bernie

10
General Mach Discussion / limit switch triggered
« on: August 03, 2010, 09:52:20 PM »
Hi members,
I have a small problem  with a limit switch error, A short time after the cnc router starts it goes into emergency mode telling me a limit switch has been triggered. No limit switches have been triggered or emergency switch can anyone help please.
Thanks
Regards
Bernie Byers

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