BUG] Z_PROBE_PIN appears to be triggered during probe, then fails with "No Trigger" error #20082. Jog the nozzle down until it is just touching the bed or just gripping a sheet of paper. And Y movement behind the nozzle will be positive, and movement in front of the nozzle will be negative. ACCEPT the position and save the. ABORT the manual probe tool and perform. G and check that there are no G31 commands in it. No trigger on z after full movement. Proceed to the dynamic test. Nozzle_y_position - probe_y_position. It's almost as if the interrupt isn't triggering, or something's going wrong during the interrupt call. In either case, it is a good idea to wait several minutes after the desired temperature is reached, so that the printer apparatus is consistently at the desired temperature. Then, without homing or disabling the stepper motors, heat the printer nozzle and bed to printing temperature, and run the. If the Z movement doesn't stop, turn off power to the printer before the head crashes into the bed. Once the manual probe tool starts, follow the steps described at.
Between the minimum and the maximum value is called the range. There is detailed information here: Also has a very detailed tutorial on using a BL touch, including how to setup bed leveling an bed compensation here: 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. Update the file with the given values, remove the.
Otherwise, you will need to measure the distance between probe and nozzle. Note the reported z_offset found. Here is an easy way to measure the offset: - Tape down a piece of paper onto the bed. Use the X and Y jog buttons to position the nozzle over the centre of the bed. Repeatability check¶. Mark the impression with a marker tip to make it more visible. I have seen this too. If your Z probe produces a short pulse when it triggers (e. Smart Effector, Precision Piezo, FSRs with John SL board, BLTouch) then the pulse will probably be too short for you to see. For any other type of Z probe where the probe triggers before the nozzle contacts the bed, it will be positive. Navigate to the OctoPrint terminal tab and run the. No trigger on probe after full movement in excel. Actual distance between the nozzle and bed at the given location. I was able to test ellensp's suggestion, adding. Make sure the dynamic test is successful (Z probe stops when it senses the bed) before doing this.
Unfortunately, after some painstaking hours of trying to debug this myself, I've been having a pretty hard time actually reproducing this consistently (seemingly since I added a bunch more debugging messages.... possibly a concidence). Follow the steps at. Location Bias Check¶. Start by homing the. Steps, and note the reported z_offset. One can check for a location bias by using the. G-Codes document for further details. Issue a. GET_POSITION command and record the toolhead XY location. Providing an accurate probe z_offset is critical to obtaining high. Ideally, the command will report. I may also try a slightly older version of Marlin to see if, perhaps, the issue was present after both of those^ changes but before the current bugfix branch head.
If the nozzle does not move to a position above the. Connect to the printer from a browser or via USB. Test and calibrate a Z probe. The center of the bed. Klipper has several manual probing tools that can be. The probe generally obtains repeatable results but has an occasional. Automatic probe point, then. Printer and then move the head to a position near the center of the. Rotation_distance/(full_steps_per_rotation*microsteps). Ideally the tool will report an identical maximum and minimum value. PROBE_CALIBRATE command, TESTZ commands, and. Interestingly I did have an issue recently where modifying my babysteps/z-offset downwards by the minimum amount during printingt would sometimes cause the z axis to move down excessively (i. e. I'd make the minimum step, and the nozzle would dive into the bed).
You can compile with the. RESTART command so that. The probe z_offset will then be calculated from.