The Original Prusa magnetic heatbed is designed to hold a removable double-sided flexible spring-steel sheet, designed specifically for easy removal of printed objects from the print surface.
|Textured Sheet (color may differ from yours)||The underside of a printed object|
The powder-coated sheet, also referred to as the textured sheet, has its surface covered with a special polymer (Ultem PEI) to ensure perfect adhesion. These have been used in our print farm for many years and are perfect when printing a lot of high-adhesion filaments like PETG, and are also ideal for printing flexible filaments (TPU). It has a rougher texture than the Satin sheet and is more durable with some filaments than the smooth sheet .
We have done a lot of testing and compiled our results for you to use. To easily see how to prepare your sheet for any filament type, please see our Material table.
If your print surface is perfectly clean and all grease has been removed by wiping it with a paper towel soaked in isopropyl alcohol ~90%. Also, make sure the first layer height is set up perfectly.
If your prints still do not adhere reliably to the print surface, try to wash the sheet in warm water (not hot!) with a few drops of liquid dish soap (not hand soap). This should not be done often, and do not submerge the sheet completely in hot water, bu this can clean away oils/sugars that are not affected by rubbing alcohol. However, the textured sheet is not water-proof so consider this a last resort which should not be done often.
For more info on how to deal with adhesion issues, please see First layer issues.
If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.