Ok, so I’m going to start with the fact that 90% of my printing is with ABS, why because I have a business printing and my customer requires ABS and Low-flammability ABS (UL94-V0 to be exact) parts, plus I print a bunch of car parts and recently I’ve started printing a gun stock with ABS-pro filament.
So far I’ve had great luck printing PLA, this isn’t a complaint about that or about the machine in general, just issues that I’m having with ABS and seeing how many others print with it and if they are experiencing similar issues.
Now when I get to ABS I find that the snapmaker build surface doesn’t work, ABS won’t stick to it even after printing with PLA on the same surface. Has anyone else had a similar issue? I’ve switched to glass and Magigoo which works well on all my other machines.
Second thing that I’m finding is more worry some…ABS as we all know requires a heated enclosure, well to print without warping, especially with the UL94-V0 material which has a higher melting temp and needs a hotter buildplate and even worse for ABS-pro.
What I’m finding is that the machine gets too hot inside an enclosure, so much so that the linear rails and more specifically the stepper driver controllers built into the modules are overheating, shutting down causing axis shifts…that is bad. Yes I know I’ve modified my Y-axis (currently the dust covers are off so they should be cooling better than covered) but I’m getting X-axis shift with a brand new module from Edwin (previous one was doing the same thing because of a missing heat transfer pad)
Now, with this said, I don’t get this issue with PLA (did a bunch of 70+ hour prints) and the cabinet closed or open, because PLA doesn’t get the cabinet so hot, ABS on the other hand is getting the cabinet to around 40 degrees (which is great for ABS prints IMO) but the steppers are all getting hot to the touch, like burning to touch, I don’t have a temp gun or I’d get the temp. Unfortunately with my large ABS prints with the cabinet open in an attempt to keep the stepper controllers from overheating, I’ve had 3 failures due to warping, so it needs to be closed.
Unfortunately I’m at my wits end, my other printers all have separate stepper controllers with cooling fans that aren’t located in the hot enclosure, something I don’t see happening in my A350’s case.
Just wondering if anyone else runs ABS, if they’ve run into similar issues with heat in the enclosure and the steppers overheating.