Please Help: PrusaSlicer vs. PrusaControl  

RE: Please Help: PrusaSlicer vs. PrusaControl

Posted by: TLowman92

So after the new PrusaSlicer launched, I started using that to slice my Prints. Though i began to notice a huge difference between when i used PrusaSlicer and PrusaControl (what I originally used). I liked the fact that in PrusaSlicer i was able to control a lot more than just the Layer Height and the basics. 

But my problem is becoming really irritating now... When I create a GCODE from Slicer and begin the print I get what looks like Burned extruded filament. I will be attaching images to give examples if i can. 

But when i take that same file and use PrusaControl, it comes out smooth for the first layer. almost 95% perfect. 

 

Does anyone have any tips they could share about settings to mess with in PrusaSlicer in order to get the first layer to cooperate ? thank you!

Attachment removed

This is the image I took while my printer was doing this same print from the PrusaControl GCode.

RE: Please Help: PrusaSlicer vs. PrusaControl

Hard to say exactly what the difference is. If you care to zip up and post both gcode files we can compare. Having said that, your Live-Z adjustment appears to be too low in both pictures. The nozzle is dragging through the filament. While it's "better" with the PrusaControl-sliced print, it's still likely to cause you grief down the road. Before you burn too many cycles worrying about the differences between slicers, get that critical first layer right. Try using Jeff Jordan's "Life Adjust" procedure for calibrating your Live-Z setting. It is much easier to use and understand than the on-board routine. In general, start high (less negative) and work lower (more negative) in large increments (e.g. 0.1mm) until the filament starts to stick on its own. When it's right, you should be able to gently rub it without it coming loose. Then start lowering (more negative) the level until there are no gaps between layers. When you've got your Live-Z setting adjusted properly, you should be able to gently rub the extruded lines without dislodging them. 

Also, your PEI surface is filthy. Even if you don't think this is the cause, it's always a good idea to make sure your PEI surface is clean before trying any other fixes. Do this before the Live-Z recalibration. Take it to the kitchen sink and give it a good dunk with Dawn (original formula, no vinegar or hand softener variants) dishwashing soap or your local equivalent (e.g. Fairy in UK). Use a clean paper towel to clean it off, and another to dry it. Avoid using any sponge or cloth that has been in contact with grease. Above all else, avoid touching the PEI print surface. Once it's good and clean, you should be able to use 91%+ isopropyl alcohol between prints, 100% acetone when that fails, and another dunk when acetone fails. Worst-case, use a 3M 7445 ScotchBrite pad or equivalent to give it a very light buff, but only infrequently.

RE: Please Help: PrusaSlicer vs. PrusaControl

Thanks man, I appreciate the feedback.

when I get home from work I’ll give it a shot, I’ve been cleaning the PEI bed regularly just that way, I just had done a couple prints prior to that picture. I’ll clean it and try it again when I get home. The print from the Prusa control is about finished also. And looks perfectly fine so far as far as layers.

my current Z height is (-0.505) 

a while back I was having issues where one side of the bed was reading as if it were higher than the other side. It’s still slightly like that but not as bad after doing a firmware update. 

I’m still very new to the 3D printing Universe, so thank you again!!

RE: Please Help: PrusaSlicer vs. PrusaControl

There is also a better auto calibration for the bed, before the print the pinda probe touches more points on the bed.

See settings in de printer settings.

RE: Please Help: PrusaSlicer vs. PrusaControl

Get the first layer very good, this is very important for the whole print.