Solved Print bed lowers itself WAY too low at start of print

[Dalemaunder 1]

Hey guys,

I'm having a problem with my first ever print where at the very beginning it auto homes perfectly fine then it will lower the bed significantly, raise it a little bit again and begin attempting to print in mid-air (I have the filament retracted WAY back to stop it going everywhere while testing).

I have the same result whether I print directly from Cura(v 15.04), or if I print from an SD card in my controller.

Here is a video of the problem: Dropbox

And here is the start of the G code.

 

M190 S70.000000M109 S210.000000;Sliced at: Sat 28-11-2015 13:42:53;Basic settings: Layer height: 0.1 Walls: 0.8 Fill: 20;Print time: 50 minutes;Filament used: 0.472m 3.0g;Filament cost: None;M190 S70 ;Uncomment to add your own bed temperature line;M109 S210 ;Uncomment to add your own temperature lineG21        ;metric valuesG90        ;absolute positioningM82        ;set extruder to absolute modeM107       ;start with the fan offG28 X0 Y0  ;move X/Y to min endstopsG28 Z0     ;move Z to min endstopsG1 Z15.0 F9000 ;move the platform down 15mmG92 E0                  ;zero the extruded lengthG1 F200 E3              ;extrude 3mm of feed stockG92 E0                  ;zero the extruded length againG1 F9000;Put printing message on LCD screenM117 Printing...;Layer count: 336;LAYER:0M107G0 F9000 X91.796 Y93.521 Z0.300;TYPE:SKIRTG1 F1200 X92.616 Y92.868 E0.01972G1 X93.523 Y92.407 E0.03886G1 X94.466 Y92.139 E0.05730G1 X95.209 Y92.072 E0.07133G1 X95.757 Y92.063 E0.08164G1 X96.061 Y92.064 E0.08736G1 X96.110 Y92.062 E0.08828G1 X96.889 Y92.069 E0.10293

 

Any help would be greatly appreciated, thanks.

Edited November 28, 2015 by Guest

[Dim3nsioneer 557]

To me it looks as if the bed executes a controlled drive. I think something with the z steps per mm setting is wrong. Did you load the correct firmware? Maybe you should reload it (UMO+, not UMO in Cura!).

[tinkergnome 926]

Maybe you should reload it (UMO+, not UMO in Cura!).

 

Yep, if this is a "fresh assembled" printer - upload the correct firmware with Cura and don't forget a subsequent "Control" -> "Restore failsafe" and "Control" -> "Store memory" (on the UltiController).

This will set the correct values for steps/mm (amongst other things).

[Dalemaunder 1]

 

Maybe you should reload it (UMO+, not UMO in Cura!).

 

Yep, if this is a "fresh assembled" printer - upload the correct firmware with Cura and don't forget a subsequent "Control" -> "Restore failsafe" and "Control" -> "Store memory" (on the UltiController).

This will set the correct values for steps/mm (amongst other things).

 

Seems like the Restore failsafe and store memory fixed it, now I just need to work out the new problem of why the extruder is grinding against the filament and not feeding through the bowden tube. Thank you very much guys!

[rosshunter 1]

hi, im having the same problem. the ultimaker controller doesn't allow me to do what Tinkergnome suggests.

 

did you get to the bottom of it?

 

thanks