First few layers of a print are rough
Hi - I've just moved from an UpBox printing ABS to a Prusa Mk4 with PLA and am slowly trying to get to grips with the settings to get a good quality print. With the ABS/UpBox, I printed a raft and the model detached from the raft very cleanly leaving a smooth surface. I have tried the PLA/Prusa with and without a raft but I get the sort of surface shown in the photo (although the rest of the print is OK). Can you please suggest settings that will result in a smooth base of the model. I'm running 0.2mm layers but left the first layer at the default 0.35mm. Perimeters 30mm/s.
Thanks
Richard
RE: First few layers of a print are rough
Hello Richard, I see that you are printing ABS. That usually requires a heated enclosure as ABS warps easily.
RE: First few layers of a print are rough
Hello Richard, I see that you are printing ABS. That usually requires a heated enclosure as ABS warps easily.
OP is printing PLA on the Prusa, so enclosure is not required (although it will be for ABS of course).
OP - the first layer should be completely flat - seems like you do not have enough 'squish', although the MK4 should do this automatically. Does it go through the calibration and bed probing successfully before the print begins?
RE: First few layers of a print are rough
Make sure the part is flat on the plater.
Hi - I've just moved from an UpBox printing ABS to a Prusa Mk4 with PLA and am slowly trying to get to grips with the settings to get a good quality print. With the ABS/UpBox, I printed a raft and the model detached from the raft very cleanly leaving a smooth surface. I have tried the PLA/Prusa with and without a raft but I get the sort of surface shown in the photo (although the rest of the print is OK). Can you please suggest settings that will result in a smooth base of the model. I'm running 0.2mm layers but left the first layer at the default 0.35mm. Perimeters 30mm/s.
Thanks
Richard
RE: First few layers of a print are rough
If by "heated enclosure" you mean actively heated enclosure, no - absolutely do not need a heated enclosure. I have hundreds of hours printing ABS without a heated enclosure. A enclosure yes - but not an actively heated enclosure. ABS is the recommended filament in Voron builds and most of us are using Voron's with just a standard non-actively heated enclosure to print ABS.
As to the OP - does this first layer issue happen with your other prints? As others have already mentioned - if you've gone through the calibration process, you should then get pretty much spot on first layers. If its isolate to this print only with PLA - and that looks like prusament galaxy PLA - I would start looking at things in your slicer