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Miykoll

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  1. This is maybe an old topic, but I want tot share my settings for if someone strumbles on this page. Steps taken 1. Generate Gcode by Cura with starting and end gcode presented below 2. Open Notepad++ and remove all code (I leave the comments) that Cura creates before my comment ; My edit. This enables heating the print bed and nozzle simultaneous. 3. Execute Gcode on Leapfrog. Cura printer profile settings I created a new printer setting called Leapfrog and used the following settings. [media=68396" size="medium][/media] Gcode Starting Gcode ; My edit M117 Heating... ;Put heating msg on screen M140 S60 ;Heat bed, do not wait M109 S210 T0 ;Uncomment to add your own temperature line M190 S60 ;Heat bed, wait till done G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode T0 ;T0 is right extruder, T1 is left extruder M107 ;start with the fan off G28 X0 Y0 ;move X/Y to min endstops G28 Z0 ;move Z to min endstops G1 Z30.0 F6000 ;move the platform down 30mm G92 E0 ;zero the extruded length G1 F200 E30 ;extrude some feed stock G92 E0 ;zero the extruded length again G1 F6000 End Gcode M104 S0 ;extruder heater off M140 S0 ;heated bed heater off (if you have it) G91 ;relative positioning G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure G1 Z+0.5 E-5 X-20 Y-20 F6000 ;move Z up a bit and retract filament even more G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way G1 Z180 F300 ; lower platform M84 ;steppers off G90 ;absolute positioning Other GCode This Gcode uses the variables from Cura, however it is written for old Cura version, so you have to tweak it before it will work. ;Sliced at: {day} {date} {time} ;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density} ;Print time: {print_time} ;Filament used: {filament_amount}m {filament_weight}g ;Filament cost: {filament_cost} M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line M109 S{print_temperature} T0 ;Uncomment to add your own temperature line G21 ;metric values G90 ;absolute positioning M82 ;set extruder to absolute mode T0 ;use first extruder M107 ;start with the fan off G28 X0 Y0 ;move X/Y to min endstops G28 Z0 ;move Z to min endstops G1 Z30.0 F{travel_speed} ;move the platform down 30mm G92 E0 ;zero the extruded length G1 F200 E30 ;extrude some feed stock G92 E0 ;zero the extruded length again G1 F{travel_speed} ;End GCode M104 S0 ;extruder heater off M140 S0 ;heated bed heater off (if you have it) G91 ;relative positioning G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way G1 Z180 F300 ; lower platform M84 ;steppers off G90 ;absolute positioning ;{profile_string}
  2. Thanks you for the response. This solves the drift, but is under extrusion also common with this problem, or might this be a temperature / speed problem? As you can see my speed is not that high, temp. is 210 C and using green Makerpoint PLA for 180-210 C
  3. Hello community, I got drift and under extrusion with the UM2 . The drift started yesterday and started with larger parts, but now also with smaller parts (sizes of 1/3 of the print bed). I just noticed the under extrusion and created a test file (test_square) to see the drifting and under extrusion. The pictures say enough. I got drift in both X and Y. I search the forum for drift and placed marks on the pulleys to see if they slip. However this did not occur. I did not extra tighten the pulleys, maybe I'm going to do that just for sake of completeness. Another point is lubrication, unfortunately I cannot test it now since I do not have lubrication at hand. Furthermore, the filament is sometimes retracted a lit bit, rotating the feeder actuator. I think that's because the filament roll is getting smaller, so the feeder requires more torque to overcome the friction force of the filament roll. No slip occurs, the feeder is just rotated backwards. Have anyone seen this before? I hope it is a bit clear what my problems are and that the pictures are sufficient enough. Just request for more information if it is not the case. - Michael To reduce the size of the post, I placed the images into an album, only have no clue how to include an album in here or refer to it by URL. So all the images are included in the post. Edit: A video of another design where the drift occurs around 0:26. You can hear it jamming.
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