Thanks... we printed the plastic parts on a Makerbot Replicator 2 in PLA, using mostly standard settings.
I really like how the 3DR works - after the initial problems sorted out, I find no serious weak points in the design. The only thing I currently plan to modify is to build a weight optimized platform: a one piece printed part which integrates platform, j-head holder and fan mount.
Now what's left (and really bothers me) now is the well known problem of oozing bowden extruders. Tried countless slicer settings, retract strategies and parameters, nozzle temperatures, all of which could reduce but not really cure the problem. Will try a different extruder (the planetary one Johann uses for his Mini Kossel) next, also various nozzles (currently a chinese 0.4mm J-Head).
I really like how the 3DR works - after the initial problems sorted out, I find no serious weak points in the design. The only thing I currently plan to modify is to build a weight optimized platform: a one piece printed part which integrates platform, j-head holder and fan mount.
Now what's left (and really bothers me) now is the well known problem of oozing bowden extruders. Tried countless slicer settings, retract strategies and parameters, nozzle temperatures, all of which could reduce but not really cure the problem. Will try a different extruder (the planetary one Johann uses for his Mini Kossel) next, also various nozzles (currently a chinese 0.4mm J-Head).