Centroid Community CNC Support Forum

Well I got an error this morning. I just reset it and turned the feed down. and re-homed it.
I did Pump a lot of way lube out the Z slide just to check that.
I will reset tools I will be using to ensure correct offset.

You might consider lubricating/replacing the Z+ home/limit switch. Make sure it is a little lower than the hard stop.
That "differs by X number of counts" is that the last time the control stored the number of counts between when the mechanical switch was tripped and the Z axis encoder index has changed by the number of counts displayed. Make sure mechanically all pulleys and belts are snug.

You might also run into this if your Z encoder index pulse is close to where your limit switch actuates. If this is the case, simple things like temperature difference can affect where your limit switch trips by a small amount making what used to be a small turn to the encoder pulse now almost a full turn.

The fix is easy - just disconnect your motor from the ballscrew and rotate the motor 1/2 turn and reconnect it. You'll get the encoder counts message the first time you home it afterwards, say yes, and hopefully you'll never see the message again.

I just looked at the SYSTEST.OUT file found in the report. ASSUMING these are the results of your Systemtest conducted on 1/4/2018
Seems as it never passed the system test. So you are probably getting a white box on power up saying System test not completed and to Contact your dealer?

Here is your SYSTEST.OUT file:

-------------------------------------------
Starting system test
-------------------------------------------
Version Information
$Id: systest.cnc,v 1.1.1.1 2006/01/05 14:30:21 kdennison Exp $
;;;;;;;;;;;;;;;;;;;;;;;
System is NOT configured for ATC

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Checking travel limits and home set
Travel limits set and machine is homed.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Starting home switch testing
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 1 minus
1 / 8 turn distance is 0.0246
7 / 8 turn distance is 0.1722
full turn distance is 0.1969
Off switch| error | home | error | differnce
-0.1290 0.0000 0.0000 0.0000 0.1290
Off switch Max Min Difference
-0.1290 -0.1290 0.0000
home posiiton Max Min Difference
0.0000 0.0000 0.0000
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 1 plus
1 / 8 turn distance is 0.0246
7 / 8 turn distance is 0.1722
full turn distance is 0.1969
Off switch| error | home | error | differnce
39.6927 0.0000 39.5675 0.0000 0.1252
Off switch Max Min Difference
39.6927 39.6927 0.0000
home posiiton Max Min Difference
39.5675 39.5675 0.0000
Axis has both minus and plus home switches
-Distance between home positions is 39.5674
-Distance between travel limits is 39.6250
-Difference between distances is -0.0576
*** FAILURE Travel limits set incorrectly
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 2 minus
1 / 8 turn distance is 0.0246
7 / 8 turn distance is 0.1723
full turn distance is 0.1969
Off switch| error | home | error | differnce
-19.5429 0.0000 -19.4909 0.0000 0.0520
Off switch Max Min Difference
-19.5429 -19.5429 0.0000
home posiiton Max Min Difference
-19.4909 -19.4909 0.0000
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 2 plus
1 / 8 turn distance is 0.0246
7 / 8 turn distance is 0.1723
full turn distance is 0.1969
Off switch| error | home | error | differnce
0.0800 0.0000 -0.0000 0.0000 0.0800
Off switch Max Min Difference
0.0800 0.0800 0.0000
home posiiton Max Min Difference
-0.0000 -0.0000 0.0000
Axis has both minus and plus home switches
-Distance between home positions is 19.4909
-Distance between travel limits is 19.4770
-Difference between distances is 0.0139
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 3 minus
1 / 8 turn distance is 0.0116
7 / 8 turn distance is 0.0811
full turn distance is 0.0926
Off switch| error | home | error | differnce
-19.7498 0.0000 -19.6715 0.0000 0.0782
Off switch Max Min Difference
-19.7498 -19.7498 0.0000
home posiiton Max Min Difference
-19.6715 -19.6715 0.0000
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Homing axis 3 plus
1 / 8 turn distance is 0.0116
7 / 8 turn distance is 0.0811
full turn distance is 0.0926
Off switch| error | home | error | differnce
0.0722 0.0000 0.0604 0.0000 0.0118
Off switch Max Min Difference
0.0722 0.0722 0.0000
home posiiton Max Min Difference
0.0604 0.0604 0.0000
Axis has both minus and plus home switches
-Distance between home positions is 19.7320
-Distance between travel limits is 19.6500
-Difference between distances is 0.0820
Finished testing home/limit switches
*** FAILED SYSTEM TEST ***

Note that the reason for failing the system test was an X travel limit 0.057" too long, and not the marginal Z+ homing search distance.

cncsnw wrote: ↑Mon Nov 22, 2021 10:48 pm Note that the reason for failing the system test was an X travel limit 0.057" too long, and not the marginal Z+ homing search distance.

Yes, I failed to mention that....