Prusament PC Blend Carbon Fiber Black, White Marks/Residue on bottom surface
Howdy, I've just started printing with Prusament PC Blend Carbon Fiber Black, Prusa recommend Satin or Textured sheet for printing.
Finish is great, and beds adhere well, but when removing parts there is some kind of a white residue on on the underside.
I use all kinds of material on both beds. Is this residue just leftovers from old prints? That will clean up with continuous printing, or is this bed material which will always be there on every print?
RE: Prusament PC Blend Carbon Fiber Black, White Marks/Residue on bottom surface
Did you use glue stick on the sheet?
RE:
No Gluestick, I just clean with alcohol each time
RE: Prusament PC Blend Carbon Fiber Black, White Marks/Residue on bottom surface
@ beegmouse: What kind of nozzle do you use - size and material? (Just interested as I have 3 spools of this material and not printed with it - are you using a 0,4 mm nozzle?)
Best regards, Clemens
Mini, i3 MK2.5S, i3 MK4, CClone (Eigenbau)
RE: Prusament PC Blend Carbon Fiber Black, White Marks/Residue on bottom surface
I printed a fair amount of PC-CF recently and never noticed a white residue so it may well be ghosts of prints past. @clemens-m, I used a 0.4 mm Obxidian nozzle. On my Mk3S printers, I have tungsten carbide nozzles.
Take a look with a strong hand lens; at the print sheet: if the marks are residue then there may be some remaining residue in the crevices on the sheet, if the marks are sheet material, pei, then there will be broken peaks and small bare patches on the sheet.
My bet is on residue, sticking with just one solvent selectively leaves whatever it can't shift. DO NOT use acetone on satin or textured sheets but it's worth switching between IPA and dishwashing detergent with HOT water from time to time just to take advantage of the different activity.
Cheerio,