Prusa i3 MK2S KIT - I Ncreasing T He a Dhesion; S Elftest ( Kit O Nly)

unscented paper towel and wipe the print surface. The bed should be cleaned while cold for
the best results but it can also be cleaned when already preheated for PLA, just be careful
not to touch the bed surface or the nozzle. When cleaning at higher temperatures the alcohol
will evaporate before it can clean anything. Alternatively, you can clean the bed with warm
water and a few drops of a dish soap on a paper towel. Denatured alcohol is yet another
option.
The surface does not have to be cleaned before every print! It is just important to not
touch the print bed with your hands or dirty tools. Clean your tools with the same
solution as you would the bed and you will be able to start your next print right away.
You can leave small marks on the print surface with your nozzle or tools, they will typically
be shinier than the rest. It does not affect the functionality or adhesion. However, if you want
to have same surface look on the whole printbed you can resurface it. The easiest way is to
take a hard side of dry kitchen sponge and wipe the affected area with circular motion gently
few times.
The industrial glue which holds the PEI sheet on the heatbed itself softens when
temperatures greater than 110 °C are used. If higher temperatures are used, the
glue can migrate under the PEI and create slight bumps on the surface.
6.3.3 Increasing the adhesion
In some special occasions, like a tall object with a very small contact area with the print
surface, you might need to increase the adhesion. Fortunately PEI is a very chemically
resistant polymer and you can temporary apply other adhesion solutions without damaging
it. This also applies to materials which would not stick to PEI otherwise, like Nylon etc.
Before applying anything to the bed, consider using Brim option in Slic3r which increases
the surface area of the first layer.
For PLA and Nylon blends a simple glue stick does the trick. Glue can be later easily
removed by window cleaner or dish soap water.
For ABS prints, ABS juice can be used and later cleaned with pure acetone. Be very gentle
when applying the juice and do so while the bed is cold. Prints will attach very strongly.
Prepared juice can be also purchased in our e-shop. Unfortunately, UPS service
does not allow to deliver any acetone-based products due to shipping constraints. In
that case you get only the bottle and ABS from our e-shop and you have to source
the acetone locally.
6.3.4 Selftest (kit only)
The purpose of the selftest routine is to check most common errors when assembling and
connecting electronics and to help indicate any possible errors after assembly. You can run
the Selftest from Calibration menu on LCD panel. This should not be necessary on the
assembled printers as those are pretested.
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