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Trident printing in the air

Dmitriy

Member
Printer Model
Trident (300x300)
Extruder Type
Clockwork 2
Cooling Type
Stealthburner
I just completed the assembly of a Trident. It took way more work than I had expected :( But it didn't catch on fire the first time I turned it on. :) The printer is as stock as it gets with a Formbot kit: Z-endstop + Omron. I followed all the setup instructions including Z Offset Adjustment: z-endstop_calibrate -> I got the nozzle on paper -> Accept _> Save_Config. There is a "position_endstop = 0.900" at the end of my printer.cfg. But with my first print, the printer is printing very high in the air (at least a full 1 mm) above the bed. Maybe even more. There is only very minimal filament oozing on the nozzle at it goes to touch the Z endstop. I use a handheld brush to wipe the nozzle just as it begins to move back towards the z endstop switch. The gcode I am printing calls the PRINT_START macro. Somehow the position_endstop adjustment is not taking effect or I measured it way wrong. What I am doing wrong? Please help. I know I can start messing with these values manually and get the bed up closer. But I am hesitant to mess something up. I want to understand what's wrong here.

printer.cfg and gcode
 

Attachments

  • printer.cfg.txt
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I just completed the assembly of a Trident. It took way more work than I had expected :( But it didn't catch on fire the first time I turned it on. :) The printer is as stock as it gets with a Formbot kit: Z-endstop + Omron. I followed all the setup instructions including Z Offset Adjustment: z-endstop_calibrate -> I got the nozzle on paper -> Accept _> Save_Config. There is a "position_endstop = 0.900" at the end of my printer.cfg. But with my first print, the printer is printing very high in the air (at least a full 1 mm) above the bed. Maybe even more. There is only very minimal filament oozing on the nozzle at it goes to touch the Z endstop. I use a handheld brush to wipe the nozzle just as it begins to move back towards the z endstop switch. The gcode I am printing calls the PRINT_START macro. Somehow the position_endstop adjustment is not taking effect or I measured it way wrong. What I am doing wrong? Please help. I know I can start messing with these values manually and get the bed up closer. But I am hesitant to mess something up. I want to understand what's wrong here.

printer.cfg and gcode
This problem has been solved. I neglected to add a G28 in the PRINT_START macro after Z_TILT_ADJUST. I had one before. But I didn't have one after. A Discord member offered a solution.
 
You can just do a G28 Z after the z_tilt_adjust; your X & Y axes will still be homed ok, so that can save some time & wear on the printer.
 
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