UART connection works fine, but X and Y endstops always show as "TRIGGERED". I am using my own customized version of marlin on RAMPS 1.4. M119 always returns TRIGGERED (or OPEN if I flip the connector) for Z min. When i press "home" in pronterface,the z axis goes UP just a fraction and stops,and will not go down. Once you change the switch position (EZABL Pro) or the wiring re-run the M119 test. I am using Marlin 2.0.6.2 that is from MKS site … I varied sensitivity from 0 to 250, but nothing changed. Y-Axis: Endstop is on the +Y side. I'm having a bit of trouble wrapping my head around the configuration of the marlin firmware. Steps to Reproduce. End stops are wired to C (COM) and NC. It also does not change when a switch is attached. I have a strange problem with the z-endstop,using mechanical switches. However, it does stop when I manually trigger the endstop when moving towards the -Y side. My first issue is the Z_MIN setting is always TRIGGERED when I run a m119 command. the endstop pull ups are needed if you use mechanical endstops, comment them out if you have optos if you use mech endstops, only use the 2 outermost connctors on the board (not the + pin) only S and - for optos use all 3 if you send M119 and all is high you need to invert the endstops in marlin Problem: The X axis Endstop is ALWAYS triggering, regardless of the switch state. In Pronterface sending M119 gives me x_min: open, x_max: TRIGGERED, y_min: open, y_max: TRIGGERED, z_min: open, z_max: TRIGGERED. (tried both states) Other 2 axis work find switching. Most recent Marlin 2.x bugfix G28 XY. Stops when it hits the endstop. When the LEDs on the sensor and EZABL board are on z_min should show TRIGGERED. When I send an M119 command it tells me X is triggered, even when nothing is connected. This is preventing the motor for moving the -X direction altogether. In open loop systems, endstops are an inexpensive way to establish the actual position of the carriage on all axes. Is it a firmware setting I need to modify? X-Axis: Endstop is on the -X side. When sending the m119 command.all switches show open except z min,which shows triggered. Re: Z Stop Always Triggered Post by Ryche » Fri May 06, 2016 5:32 am I talked to Customer Service and they determined the board had a bad pin (the Z-Min port). Notes. This will make the Z Endstop trigger. I can onl I am trying to run Marlin with Ramps 1.4 and three end stops (mechanical) and can't seem to get it configured correctly. When I send an M119 (endstop status code) I recieve: Send: M119 Recv: Reporting endstop status Recv: x_min: open Recv: y_min: TRIGGERED Recv: z_min: TRIGGERED And then when I press down the X endstop with my hand I get: Send: M119 Recv: Reporting endstop status Recv: x_min: open Recv: y_min: TRIGGERED Recv: z_min: TRIGGERED -No change. The results are actually: SENDING:M119 Reporting endstop status x_min: open y_min: open z_min: TRIGGERED I have tried changing the Z_MIN_ENDSTOP_INVERTING to true, did not work. It should look like the screenshot below: When the LEDs on the sensor and EZABL board are off z_min should show open. After this command endstops will be kept enabled when not homing. Jumpers on the SKR are closed any I ensured that there is an electrical connection between the DIAG pin and the endstop. This may have side-effects if using SD_ABORT_ON_ENDSTOP_HIT. It does not stop when it hits that end stop. I am also using an inductive sensor. If the endstop sw is pushed in by han Expected behavior: Axis home Does anyone have any solutions or suggestions? I have a 3DTOUCH probe as well. In the procedure known as “homing,” each axis is moved towards one end until the endstop switch is triggered, at which point the machine knows that the axis is at the endstop (home) position. 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