I have a bigbox dual printed with PLA 195°C I did the 10 cm correction, but seems like too much extrusion ? the underground is ok, but the top is not smooth Printed this https://www.thingiverse.com/thing:277394 Bigbox 1.1 rc6 Anyone can help me make it more smooth ?
Nozzle is 0.4 layer hight is 0.25 infill 50 % It is a new big box, just the fourth print. So standard settings Just put the new firmware.
There may be several things going on here. I'd start with the simplest likely thing which is probable over-extrusion. I like to do that 10 cm E-steps calibration a few times because, sometimes for no obvious reason, I have gotten a bad value. Did you measure your filament? Nominal 1.75 mm filament can be off by many percent. It's worth checking and comparing it to what the slicer thinks it is. Also in your slicer check for something like "extrusion multiplier". Usually it's set to something like 0.9. It's a fudge factor used to correct how much plastic is extruded. It can be used to correct for many things but mostly it's to correct for "die-swell". Die-swell is a sort of weird thing where the volume of plastic coming out of the hot-end is actually larger than the volume of plastic going in. If you look it up it's somewhat interesting.
From my experience you have the following issues: Lose belts Not calibrated esteps Dusty filament Overheating If you hear pops while printing your filament is also moist I also recommend greasing your bearings And if you dont mind please go to Marlinfw.org and update your firmware
