Difficulty sticking to the bed


Today we’re going to talk about warping or difficulty of adhesion to the plate or, if you prefer, to the bed. We point up that the suggestions that we describe are the results of our personal experiences and we’re just trying to give you a guideline for those who come across this problem. Difficulty adhering to the plate with PLA We usually print with PLA on a mirror or a glass which is fixed on the heated bed with four clips, like clamps, and we usually spray some hair spray a few minutes before the print, to let it dry a little bit.
There are many causes and many possible solutions to the very common problem of lack of adhesion.
The effects can be different, for example the difficulty can occur as soon as the print begins, the filament does not adhere to the plate and it starts to follow the hotend’s movements, in this particular case we can try to adjust the distance between the plate and the nozzle, making sure that it rests the same for all the four corners of the glass.
We can easily adjust the distance by using a sheet of paper, it has to barely pass between noozle and glass.
If instead the problem occurs after the beginnign of the print, or even in an advanced state, maybe the hair spray is not fixative enough, or maybe the first layer’s speed is too high.
 We can also try by adding 5/6 mm of BRIM especially if the piece that we’re going to print has a large surface that is in contact with the plate.
BRIM can be helpful because it creates a sort of frame around the object that we want to print, so it increases the size just of the first layer, increasing the adherent surface.
The frame will be easily removed after the end of the print with a simple cutter.
We’ve read that some people use a particular adhesive tape which is put on the bed, many use the coachbuilder’s tape, many others use a specific one called Kapton or BlueTape. We’ve never tried to use it so we have no personal experience, but we have read positive comments for both.
Difficulty adhering to the plate with ABS Causes, effects and solutions for printing with PLA are also usable for printing with ABS, but this kind of filament needs higher temperature for the plate. Keeping in mind the size of the object that we’re going to print and the filament’s diameter, we usually keep the plate’s temperature between 90° and 110° without using the hair spray which crystallizes at these temperatures and therefore becomes useless.

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