I have acquired our schools BFB 3000 which, to all intents and purposes has never been used. It does however have an issue I don’t know about how to resolve…
It lays down the first layer fine and X and Y movement produces a perfect layer. However, as it successively moves up the model, the layers are thrown along the X axis and layers are very quickly off of the raft and dripping out of the extruder. Belt tension seems ok, though I haven’t checked the teeth on the motors. There are two motors and it seems that the teeth on both would need to be worn for it not to jam. The manufacturer was bought out and offers no support for this older machine. It’s a huge shame… it’s pristene aside from this one issue.
Hello, Can you upload some pictures of the misprints?, but if I understand good what is the problem, it may needs some grease in order to slide fine, or something else blocks the free movement. I am not sure if I understood well the problem…so I think some pictures will help.
I have a BFB 3DTouch which is the “newer” model and is very similar to yours. Which slicer are you using? I would consider using something else than the Axon software they provide with. I use Kissslicer for this printer. The printing bed is also crap. I built a heated one out of milled aluminium.
The parts are really top quality elsewise. Its running since 2008 or so without any major problems.
What do you mean by the layers are thrown along the X axis and layers are very quickly off of the raft and dripping out of the extruder. ? Is it maybe that filament powder is clogging the extrusion part (the vertical screws)? The aluminium extruders are unmountable easy enough more or less…
A different slicing software could be the solution, I’ll give that a try ASAP. I’ll put up a picture of what I mean tonight, but in the mean time, each new layer is not position ontop of the last and is being extruded off of the X axis (so Y and Z are correctly dimensioned) meaning that the whole model comes out at a funny angle. But because a single layer is extruded correctly, I’m thinking the X axis motors are correctly able to drive the head back and forth accurately so it must be software related. Something must be telling the heads to put each layer in the ‘wrong’ location.
Interesting, I believe the school still have the printer. I’ve since purchased my own but I’ll pass on your advice and see if the department can make use of it still.
