After I succeeded in printing PLA I wanted to create stronger, robust, durable parts out of ABS. It failed whatever setting I tried. It didn’t stick to the platform or the part came off after 1mm height, warped. Then I consulted an experienced 3D printing guy:
- Higher temperature of the bed
- Higher temperature of the heater
- Keep the ambient temperature at about 80C
- Switch off the fan! Only stagnant air around the printing head.
- Use 3D LAC instead off glue, hairspray or ABS juice.
So, I should have bought the Snapmaker enclosure. I went to a shop and bought a€5 storage box and placed the Snapmaker in it.
To please the guy I bought the 3D LAC from him for €12,95. (It says “no warping” on the label.)
Switching off the fan is not possible. (I tried code M107 “Fan Off” in vain.) So I used the idea from ock10 for a fan deflector: a simple piece of paper taped with scotch.
To heat the ambient air I used a 1200W hair dryer: I put it into the box, closed the lid/doors and ran it for 10 minutes. After that I took it out again and started the print job with 250C for the first layer and 90C for the bed. The heater was already preheated by the hair dryer to about 50C and the bed about 70C, assuming the air temperature inside the box is around 60C.
It worked! (In my enthusiasm I opened the doors to look at it and the product jumped off! See keep the doors closed during printing.)
After the print is finished the product is stick to the bed very well but after cooling down it comes of quite easily, thanks to the 3D LAC.
The Snapmaker has not been optimised for printing ABS, but it is very well possible with some precautions: inside a preheated enclosure, without air turbulence around the nozzle, increased heater and bed temperatures.