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The nozzle is almost flat and I seems to pick up any loose strand it can find.
I have a Replicator and it has a sharp nozzle. anyone try this or maybe there isn't one available for this machine. I know most choices seem to be for 3mm filament...

bplemmons wrote:The nozzle is almost flat and I seems to pick up any loose strand it can find.
I have a Replicator and it has a sharp nozzle. anyone try this or maybe there isn't one available for this machine. I know most choices seem to be for 3mm filament...

My MAX's little brother ( a mendelmax) has the budaschnozzle. It picks crap up just as much. If your filament is sticking to your nozzle and not the bed, I would re-check hot z=0, tinker with the first layer width setting, and/or burn anything out of your nozzle that may be trying to force the filament to curl.

What temp are you printing pla with? I checked the inside of my extruder and it is almost dead on. I take it I should set the temp so the nozzle doesn't weep plastic when it is not moving, Is this a good technique?
This puts me at 190. I have a 1/4 inch piece of tempered glass and I heat the bed up to 50 and I tried 0. The filiment wants to curl up and catch the nozzle.

I don't remeber seeing the setting you mentioned. Is that under the slicer config?

Bill

bplemmons wrote:What temp are you printing pla with? I checked the inside of my extruder and it is almost dead on. I take it I should set the temp so the nozzle doesn't weep plastic when it is not moving, Is this a good technique?
This puts me at 190. I have a 1/4 inch piece of tempered glass and I heat the bed up to 50 and I tried 0. The filiment wants to curl up and catch the nozzle.

I don't remeber seeing the setting you mentioned. Is that under the slicer config?

Bill

In slic3r it's under the print settings tab, advanced section IIRC. Your temp may be a little high for PLA if it's dead on. I shoot for 180-190, but plastic varies a lot. The nozzle will continue relieve pressure after it stops extruding, this is ooze (retract settings help to redece this pressure and therefor reduce ooze). If your temp is too high you will see liquid plastic drip from the nozzle, this is not normal behavior for quick jumps during printing, but may appear if you pause a print or leave the printer sit idle at printing temps for an extended period of time. Dripping during the print cycle should be fixed by reducing your nozzle temp. If this is the issue, try bumping it down 5 degrees.

Also, PLA seems to stick to blue painters tape and PVA (Elmer's) glue that has been watered down. Either is fine, I use tape because my kids hog all the glue.

Elmer's glue? You water it down and brush it on the glass and let it dry?
I may have to try that, it sounds easier than dissolving ABS in acetone.

Eaglezsoar wrote:Elmer's glue? You water it down and brush it on the glass and let it dry?
I may have to try that, it sounds easier than dissolving ABS in acetone.

I've also tested glue-sticks with awesome results, though the finished product was sticky on the bottom (I suspect that was because I was using cheap old gluesticks which were mostly dried out)