@
Phil2008
To start off with your first layers are not sticking to the bed. You don't have to lower the temps when you slow it down.
If you can zoom in on the bad part as I can't make out what's wrong. But you are getting there
I have finally got the ABS sticking to the bed, as people say on other forums, ABS need a hot bed so it can stick, and I have noticed when the prints are done, they are stuck real solid to the bed,, but as the bed cools, I hear poping, cracking sounds and Im guessing thats the plastic shrinking and comming unstuck from the bed, because once the temps drop below about 90c from 115c, everything is then unstuck from the bed.
If I do long prints, the things that are towards the front of the bed comes unstuck more at the corners then the things that are printed at the middle or back of the bed. Im guessing this is down to the draft as the door has gaps all the way around... Since I have figured ABS needs a hot bed for it to stick, I have been keeping the door shut while its printing aswel.
I am printing another with the same 3 object but with the 2 at the back of the bed and the 1 at the front. Its been printing for about 3-4 hrs now and has another 3hrs to go, and so far no lifting,, but if it does lift I will post a zoomed in pic, but I think if its because its drafty more at the front and the bed cant keep the temp constant at the front and the plastic shrinks and pings of the bed.
I could be totally wrong about my theory, but people even has made air tight boxes for their printers to stop the corners from curling up on their prints?
Ah yeah, I have also figured out printing with 1 head, if I have the 2nd nozzle hot during the prints its less likely to crash into the prints. About the 2nd head, my mate and I managed to get it unblocked and now its working again, but the spring that I have found for the lever isn't strong enough to keep the plastic flowing during prints. But I have found someone who strips these printers down and sell the parts, so I am hoping he will sell me a few part, so the printer should be fully working again.... But I doubt I'll use the 2nd head much even when its working again, like that might be the reason why it got blocked up because it wasn't used much. Every so often I am going to pass some filament out of the 2nd nozzle to stop it blocking up again, or thats the idea.
.
