ABS warping and lifting
I’ve got a rectangular part (9 volt battery holder) that keeps lifting up off the bed at one end. It’s about 80mm long by 30mm wide and the end peels up before the print gets 2mm thick. I’ve read about ABS juice and understand we’re not supposed to apply it to the coated steel bed plate. What’s the best way to use ABS juice on a MK3?
RE: ABS warping and lifting
Try use brim, put 5mm brim. It could keep corners on bed. after print you just cut them out.
RE: ABS warping and lifting
Thanks milannxt... I did have a 5mm wide brim... brim stuck, but the part didn't.
RE: ABS warping and lifting
Are you using a heated enclosure ? Thats pretty much the only way for abs not to warp and lift. I'd have said sure way but I've seen it warp even in an enclosure, its one reason I dont use it.
RE: ABS warping and lifting
Thanks Neophyl! I don't have a heated enclosure, but did build a wood frame around the printer and covered it with plastic sheet (mostly to keep dust off it). I could heat this and would be willing to try it. What temperature should I try to keep?
Don't want to fry the printer electronics! I also thought about lowering the melt temp and raising the bed temp to max. Has anybody tried that with success?
RE: ABS warping and lifting
Do you actually have a MK3 ? I ask as this is posted in the Mini forum. The bed temp for ABS is 110 degrees C, you want your enclosure to be as warm as you can get it. Unless you are actively heating it using an external source the best to hope for is around 45-55C from the printer.
As you are already aware these sort of temps aren't good for the electronics so moving them outside of the enclosure is recommended. The other thing is that while the Mk3 will reach ABS printing temps there are certain, erm issues with doing so. The majority of printed parts are of PETG, with the parts fan being printed in ABS. Protracted printing at ABS temps causes these parts to deform and sag. The PINDA probe mount being the first to be affected as its quite thin, but many of the other extruder parts will also have problems. That's why those who regularly print high temp materials tend to reprint the extruder parts in a higher temperature material like PC (Polycarbonate) as these can take the higher ambient temps better. There are also other modified extruders that have separated parts that allow the most vulnerable areas to be printed in higher temps.
One other problem is that the V6 coolend is air cooled, and has a rated working temp of up to around 40C. When your ambient goes up towards this it leads to heatcreep. Not as much a problem with ABS admitted but its something to bear in mind.
There are several threads dealing with high temp printing already on the forum so it might be worth doing a search and having a read of those.
RE: ABS warping and lifting
Ugh - many apologies!!! - this was my first post. Yes it's a MK3. Thanks for the info - I'll poke around the forum on high temp printing per your suggestion and experiment with PETG - think I have a spool.