This will fail after timing out waiting on the Z endstop you don't have. Normally open means the switch closes the circuit when triggered, and in Marlin this seems to be the default in Configuration.h. With Marlin and you're not using the max endstops, did you disable the max endstops? Hi friends, I have assembled the endstop version of MPCNC , and tested each endstop in repetier and I get the TRIGGERED status when pushing by hand and checking m119. The unused extruder driver/s are used for the extra stepper/s. Mechanical endstops are connected to the signal and ground pins filtered or optical endstops use all three pins, connect these with extreme caution. I am trying to use Repetier-Firmware on a 3D printer with no endstops. I tested each one individually and I get the correct axis triggered when I push by hand, but , the thing is they wont make the motors stop , they keep pushing against the end. It is quite difficult to do manual homing. I am using a regular limit switch with NC going to the signal pin and the other to ground. I have an old Solidoodle 2 that I bought broken from a garage sale that I am converting to use RAMPS 1.4 with Marlin Firmware. Attempt to use the "auto home" function in the Marlin firmware. They are mechanical endstops and they keep saying triggered and even if I trigger the endstops or untrigger them they say they are triggered no matter what. In general, on deltabots the probe should be connected to the unused Z-Min endstop pin (if there is one). calibration TOUCH_SCREEN_CALIBRATION If you want to control Marlin … Marlin also has support for software endstops. Suggested Fix. load or back up SPI Flash and SD. nozzle PARK_HEAD_ON_PAUSE ... sdcard HAS_SPI_FLASH SDSUPPORT MARLIN_DEV_MODE M993-M994 - SD / SPI Flash. #define min_software_endstops false There are many different types of hardware endstops, but there are only two ways for the switch logic to work, either Normally Open (NO) or Normally Closed (NC). People new to the CNC world should not use this, this is a advanced technique. That’s just a guess. Disable endstops and keep them enabled when not homing. 1.1.7 debug HAS_TRINAMIC_CONFIG M122 - TMC Debugging. I tried to activate all 4 endstops … My support for this will be limited.-You can now use the machine in two ways. All the motors work correctly, I am just having issues getting the endstops to work. A software endstop tells the machine that it should not attempt to travel beyond a limit defined in software. I guess it possible that the dual endstops mode in marlin just not designed for homing to max. I am trying the following: G0 S1 – disable checking endstops ... My opinion just use Marlin firmware, I have been printing without endstops for years without problems on Marlin . On machines that use Z-min for an endstop, the Z-Max pin is recommended next, so this is set as the default alternative on most boards. First, most jobs will not benefit from using endstops. mikej (Michael J) November 23, 2019, 10:37am #8. It might, but the motion feedback in grbl is totally different. I don’t know anything about carbide motion but if it’s grbl compatible, it probably won’t work for Marlin. Marlin has the dual endstops. Inverting those booleans did not do the trick, it just made so I needed my switches soldered to the opposing pins(NO/NC). Getting the machine close and just running a quick one off carving or sign has no need to go through all the extra steps. I am suggesting that there should be a way to disable the Z MIN endstops if the "laser" function is enabled, so that the firmware will not timeout with a "printer killed" message. Marlin provides reasonable defaults, but they will not apply to every situation. For our analogy about the room above, if stumbling into the wall is our mechanical endstop then our knowledge about the opposite wall being +5 away would be a software endstop . I’ve successfully tested every possible combination of M119. Marlin’s extruders=0 or remapping of pins is used in the firmware to allow the use of all the control boards drivers. Get TMC Debug Info. ( Michael J ) November 23, 2019, 10:37am # 8 endstops Disable. To be the default in Configuration.h not benefit from using endstops, this is a advanced.! To travel beyond a limit defined in software that it should not use this, this is a technique... That the dual endstops mode in Marlin just not designed for homing to max be limited.-You can now use machine! 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