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Ultimaker Community of 3D Printing Experts


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  1. Thank you, that did the trick. Turns out I had the wrong variable. All good now, thanks again for fixing this!
  2. Well that's the issue, the preheat GCode is inserted by Cura before the "Start G-Code" entries in Machine Settings. One thing I have done is dialing back the temperature to undo Cura's preheating, but there is still a little bit of filament buildup in the nozzle. Here's my Start G-Code: M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration M205 J0.01 ;Setup Jerk M220 S100 ;Reset Feedrate M221 S100 ;Reset Flowrate M104 S12
  3. Actually the nozzle being hot or not won't matter at all, the expansion is very small. Furthermore, you only have to do it once. Mesh bed leveling helps in case the bed moves a tiny bit because of the springs and there is no need for nozzle to be hot at the time. The bed, yes, but not the nozzle. Other slicers don't preheat the nozzle if I tell them not to. Cura seems to add the M109 command before even processing the pre-print G-Code. So far I have resorted to editing the GCode every time and removing the offending part, but I want to find out whether that can be done through the slicer
  4. Here's the problem I am facing: Every time I start a print using Cura sliced g-code, the bed preheats and then the nozzle preheats before the pre-print code is run. My pre-print GCode does a full bed mesh checking using G29 (25 points), then homes once more, then prepares the actual print with a priming line etc. During all this time, the nozzle is preheated by Cura and oozes filament pretty much everywhere. I have found a setting called "Initial Printing Temperature" which I assume controls the initial temperature of the nozzle before the G-Code is being processed. Am I correct in m
  5. Anyone? I can't proceed with my print because of this crash and it's a multi-day print which eats up a lot of filament, I'd rather not risk it.
  6. Hi all, I have been commissioned to print a large model. This is the model and it needed to be resized such as the largest size should be 420mm. After resizing and arranging the model on the plate like a litophane, I started slicing. Sometimes Cura would not slice at all immediately saying `"Unable to slice", after moving the model back and forth by 1mm on the plate I try again and eventually it starts slicing, which takes a while. After it finishes, I can't preview the model. Cura crashes every time I try doing that. Below you can read the relevant log. Interestingly,
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