First off, I want to use sensorless, because I like to use stall detection. It's way closer to a switchwire than anything else. All 5 drivers set jumpers in UART mode and sensorless homing function only allows X-axis and Y-axis. That said I am going to install a homing switch eventually as they can be more accurate when using stall detection. The X axis just jerked once, the Y Axis moved to the far end of its travel (it’s supposed to go to the close end) and the machine jerked back and forth until I cut power. However, it works the same with all other axes (that require an end stop). If you are using a known hotend thermistor value select KNOWN_HOTEND_THERMISTOR option and enter the value below. Y_SH_CALIBRATION You will have to change the calibration setting to get the axis to home correctly. I use sensorless homing, but only for X and Y. 2_510-src which I modified for work with the hardware above and for sensorless homing: Configuration. I was determined not to install end-stops on this build, as I had them on my other printers and I just wanted to use all of the features my TMC drivers allowed me to. In the following table we can see a comparison with the previous models, it is necessary to emphasize how the RDSon value has descended with each generation of Please only include the diag pin numbers where you intend to use sensorless homing on that axis. For example, if you only intend to use sensorless homing/stall detection on driver 0 and driver 1, only include PA_6 and PB_1 in your board. The switch and DIAG signal are wired together so you must only connect one or the other. The endresult should look somewhat like this: Test setup needed to tidy up the wiring afterwards. If using the TMC2209 stepper drivers, use a small pair of wire cutters and remove the pin marked in purple. Make sure that none of the X, Y, or Z endstops are being pressed. I have installed this Firmware: firmware-ender3-bltouch-for-z-homing. Maybe there is a … I use sensorless homing on my machine for now. 5 with the exact same behaviour so it's not a 3. Take your new BTT TMC2226 (or 2209) and connect a female to female dupont jumper wire to the “PDN” pin. How can I do that? Configuration: axes: xyz. 0, and the CR-Touch from Creality on my ender 3 Pro. Sensorless Homing¶ Sensorless homing allows to home an axis without the need for a physical limit switch. HOMING_SENSITIVITY: The Sensorless Homing sensitivity can be tuned to suit the specific machine. (or any other stallguard supported driver) Config marlin to use TMC2130 and … Donald Papp. I am having some interesting issues with the homing. Instead, the carriage on the axis is moved into the mechanical limit making the stepper motor lose steps. The problem is, I have configured sensorless homing in marlin, the code has been uploaded, but the moment I start testing, it doesn't work. I was determined not to install end-stops on this build, as I had them on my … If you want to use sensorless homing on Y axis enable this option.
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