Z-probe commissioning problem
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I removed the bed to check on the fans in the control box. After re-installing,, the homed Z-height now reads 441.39 and it reads 9.39 when touching the bed.
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Mhh, the override File looks okay to me.
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It really has me confused!
Even more so - I've now deleted that deployprobe.g file and it now runs G30 OK!
Homed, Z-height is 441.39, touching bed it is 0 so that looks OK to me.The only thing still worrying me is that the G30 leaves the nozzle set at -0.1 - how do I change that so that it retracts and clears the bed afterwards?
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The G30 is only going to probe once. That is all. G32 time.
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Hooray! That seems to be working well now. Thank you so much!
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What do you have in your bed.g file?
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Bed.g
[[language]] ; Auto calibration routine for delta printers ; Before running this, you should have set up your zprobe Z offset to suit your build, in the G31 command in config.g. M561 ; clear any bed transform, otherwise homing may be at the wrong height G31 X0 Y0 ; don't want any probe offset for this G28 ; home the printer ;*** Remove the following line if your Z probe does not need to be deployed ;M98 Pdeployprobe.g ; deploy the mechanical Z probe ; The first time the mechanical probe is used after deployment, it gives slightly different results. ; So do an extra dummy probe here. The value stored gets overwritten later. You can remove this if you use an IR probe. ;G30 P0 X0 Y0 Z-99999 ; Probe the bed and do 6- or 7-factor auto calibration G30 P0 X-73.6 Y-42.5 Z-99999 ; X tower G30 P1 X0 Y-85 Z-99999 ; between X and Y towers G30 P2 X73.6 Y-42.5 Z-99999 ; Y tower G30 P3 X73.6 Y20 Z-99999 ; between Y and Z towers G30 P4 X0 Y67 Z-99999 ; Z tower G30 P5 X-73.6 Y20 Z-99999 ; between Z and X towers G30 P6 X-36.8 Y-21.25 Z-99999 ; half way to X tower G30 P7 X36.8 Y-21.25 Z-99999 ; half way to Y tower G30 P8 X0 Y42.5 Z-99999 ; half way to Z tower G30 P9 X0 Y0 Z-99999 S6 ; centre, and auto-calibrate 6 factors ;*** Remove the following line if your Z probe does not need to be retracted ;M98 Pretractprobe.g ; retract the mechanical Z probe G1 X0 Y0 Z150 F15000 ; get the head out of the way of the bed -
That should work just fine. Those are points for a 200mm bed though, If you ever want to probe further out, just add in more G30 P* lines.
You can now add a M557 R180 S20 (might need a larger S number with firmware 1.19) to the bottom of your config.g file and run a bed mesh calibration after your auto calibration to see a graphical view of your bed.
Edit: Maybe a smaller R number so you are not probing at the edge of the bed,
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Also, M665 and M666 will show you the values that the auto calibration came up with after the probing. M500 will save them to your config-override.g file for you.
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Thank you so much, number40fan - I will do that tomorrow.
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Richard
run the script at http://www.escher3d.com/pages/wizards/wizardbed.php using the params for your bed and it will generate a BED.G For you but edit the supplied file replacing the S6 at the end of the last G30 line with S8 so that it adjust for tilt as well.
Doug
