Air Pressure not working for some STL files


I am new to 3D printing and working on a project for a college course. I am attempting to synthesize my own gel and have it 3d printed connected to a Allevi makeshift printer. However, I am having an issue where the air pressure only turns on for certain STL files - if I rotate or scale an object that works then the air will not turn on. I am sure this is not a hardware issue - something is happening during slicing or object importing. Any help would be greatly appreciated.


  • Since printers normally have no air pressure - how is that controlled in your case (gcode)?
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