Well I've progressed a little now but in some ways not.
I managed to damage the extruder assembly by getting it too hot, and it had been printed in PLA instead of ABS so it wasn't too pleased and mutated itself as a result.
Oops.
I managed to get it working again and swapped to PLA, plus fitted the proper tensioners to the belts etc.
The PLA prints to begin with were WAY more neat than the ABS ones, except for one problem I just cannot resolve so far.
I can't get the damn things to stick to the bed at all. :(
I might get 3/4 of the way through the 20mm box test with it looking great, then it suddenly comes free from the bed. It's not curling at all - it just suddenly comes loose.
I'm printing to kapton covered glass, and have wiped it with acetone. I've tried tons of variation in both extruder and bed temperatures, but all to no avail. I just can't get the sodding stuff to stick at all.
I've even removed the kapton from one half of the bed as I'd read it can work better that way with PLA but it's no different. The gap between the bed & extruder is maybe 1mm or so. It's pretty close.
Any good ideas?
I can't do much right now anyway as i need to build up the new extruder assembly my mate has made for me in ABS. It's very different to my current one, so I need to find suitably long M3 bolts etc to fit the filament clamp.
I managed to damage the extruder assembly by getting it too hot, and it had been printed in PLA instead of ABS so it wasn't too pleased and mutated itself as a result.
Oops.
I managed to get it working again and swapped to PLA, plus fitted the proper tensioners to the belts etc.
The PLA prints to begin with were WAY more neat than the ABS ones, except for one problem I just cannot resolve so far.
I can't get the damn things to stick to the bed at all. :(
I might get 3/4 of the way through the 20mm box test with it looking great, then it suddenly comes free from the bed. It's not curling at all - it just suddenly comes loose.
I'm printing to kapton covered glass, and have wiped it with acetone. I've tried tons of variation in both extruder and bed temperatures, but all to no avail. I just can't get the sodding stuff to stick at all.
I've even removed the kapton from one half of the bed as I'd read it can work better that way with PLA but it's no different. The gap between the bed & extruder is maybe 1mm or so. It's pretty close.
Any good ideas?
I can't do much right now anyway as i need to build up the new extruder assembly my mate has made for me in ABS. It's very different to my current one, so I need to find suitably long M3 bolts etc to fit the filament clamp.