Prusa i3 MK3 - I Ncreasing​ ​ T He​ ​ a Dhesion

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 temporarily 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 or PrusaControl
which increases the surface area of the first layer.
For Nylon blends a simple glue stick does the trick. Glue can later be 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 also be purchased in our e-shop. Unfortunately, UPS service
does not allow us 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.
Initiating this routine performs a series of tests. The progress and results of each step are
displayed on the LCD. In case of errors found, the selftest is interrupted and the reason for
the error is shown to guide users in troubleshooting.
The selftest is just a diagnostic tool, the printer will still attempt to print even after
the test fails. If you are absolutely certain that the affected part is correct, you may
continue with the print process.
The test consists of
● Extruder and print fan test
● Heatbed and hotend proper wiring
● XYZ motors proper wiring and functionality
● XY axis length
● XY belts tension
● Loose belt pulley test
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