Ideally, the probe z_offset would be a constant value at every printer. Repeat from step 5 two or three times to make sure that the trigger height is consistent. Used instead - see the Bed Level document for further. No trigger on probe after full movement key. Actual behavior: Sporadically, the z-axis will continue moving down, despite the probe being triggered and this being detected by the controller (since "Z_MIN_PROBE:1" is appearing in the logs). After recording the probe position, issue a series of G1 commands until the nozzle is directly above the mark on the bed. Note that if a change is made to the printer's motion system, hotend position, or probe location then it will invalidate the results of PROBE_CALIBRATE. Hold a suitable surface below the print head to trigger the Z probe.
For example, the probe may consistently trigger at a lower height when the probe is at a higher temperature. If your printer is Cartesian or CoreXY, home X and Y. For delta printers, try measuring the z_offset at a position near the A tower, at a position near the B tower, and at a position near the C tower. Y_offset is similarly the. Location Bias Check¶. As above, but either monitor the Z probe reading in PanelDue if you have one, or send G31 via USB every time you want to read it. For best results getting help with configuration and troubleshooting, please use the following resources: Hey, @ellensp. Automatic probe point, then. If the nozzle does not move to a position above the. No trigger on probe after full movement in excel. Hopefully won't take too long to reproduce if the issue does indeed exist back then. If your probe uses the nozzle tip, the X Y offset would be G31 X0 Y0. Unfortunately it only occurred to me after ordering that second BLTouch that I could have spent a little more and got an SKR Mini E3 bundled with a BLTouch to be a little more thorough in my testing, though that seems a little overkill and, given the weirdness I've sifted through so far, this seems, so far at least, to be a Marlin issue. You can compile with the.
ABORT the manual probe tool and perform. For example, if the probe mount tilts slightly when moving along the Y axis then it could result in the probe reporting biased results at different Y positions. Place a piece of blue painters tape (or similar) on the bed underneath the probe. If you have to move the nozzle farther away from the bed, decrease the G31 Z value by the amount of baby stepping used. Before starting this test, first calibrate the probe X, Y, and Z. offsets as described at the beginning of this document. The position directly above the mark, use the. No trigger on probe after full movement using. For cartesian, corexy, and similar printers, try measuring the z_offset at positions near the four corners of the bed.
After calibrating the probe X, Y, and Z offsets it is a good idea to. I can do a probe deviation test 50 times without issue but trying to complete a full G29 P1 results in a failure along the way where the probe will trigger but the z axis will keep moving down. Then, without homing or disabling the stepper motors, heat the printer nozzle and bed to printing temperature, and run the. When the probe is in front of nozzle the Y value is negative. This document describes the method for calibrating the X, Y, and Z. offsets of an "automatic z probe" in Klipper. Hi, I recently installed a genuine BLTouch v3. Navigate to the other XY positions, repeat these. If your Z probe is of a type that produces a continuous output when triggered (for example IR, inductive, capacitive and switch-type probes), hold a surface below the Z probe to cause it to trigger (or jog the nozzle towards the bed until it is close enough to trigger). This will deploy the probe (if applicable) and start the head descending or the bed rising. Update the file and issue a. 513198, standard deviation 0. The nozzle Z height.
JackNewman12 While the probe is moving down, the probe should turn red briefly, and then either retract immediately (so it would stay red then) or, if. After you've done the procedure above, you can fine tune your G31 Z value to get a good first layer. Place a mark on the tape directly under where the probe is (or use a similar method to note the location on the bed). Repeatability check¶. Proceed to the dynamic test. By all means, please correct me if I'm completely going in the wrong direction here, or if you have any more suggestions. Klipper has several manual probing tools that can be. If the probe has an X or Y offset and the bed tilt is changed (eg, by adjusting bed screws, running DELTA_CALIBRATE, running Z_TILT_ADJUST, running QUAD_GANTRY_LEVEL, or similar) then it will invalidate the results of PROBE_CALIBRATE. RESTART command so that. The nozzle over the location of the probe point, and start the manual. One can check for a location bias by using the.
G-Codes document for further details. Previously to that, I note that #18637 fixed a previous issue that appears to have exhibited very similar behaviour to what I'm now experiencing. It is also a good idea to reduce motor currents in case of a crash. Test and calibrate a Z probe.
Steps, and note the reported z_offset. "the paper test") to determine the.