[EricH]

Originally Posted by ksafin

Thanks for the quick reply.

We use Slic3r Configuration Files provided by Airwolf 3D for use with the printer. I'd like to post them to see if you notice anything that should be tweaked, but i'm not at our workspace right now. I'll try to get them later.

I'm not familiar with Slic3r, so I'm not sure I could understand them. I noted that I use Skeinforge, which would probably have similar things, but in different places.

Speed may be an issue; it seemed to certainly be moving quite fast. I may not be recalling correctly, but 30 mm/s seems to stand out in my head.

That's... pretty fast. *reaches for Replicator/Skeinforge* *calls up the "fast" profile* On the other hand, we've been traveling at 38 and feeding at 34 (both mm/s).

What height above the platform should our nozzle be? What do you mean by tip thickness? I think our nozzle was something like half a centimeter or less above the platform during prints.

5mm? That's your problem right there. I looked at the Airwolf site, and the stock tip is 0.5mm (tip thickness). We run a 0.35mm tip (stock for our printer type), which they offer as an option. You want to run with the tip height above the printer at or below the tip thickness.

The other thing I'd look into is the tape. Kapton tape over aluminum over heating pad is what we've got on our Mendels; Airwolf suggests PET or Kapton tape. Kapton wears out its "stickiness" after a few hundred runs; I'm not sure about PET. If it's not as sticky as it should be, move the center of the run a few millimeters to one side and see what happens.

Roy, the "raft" option might work--but in my experience, it's not necessary for something that size. (The parts I sent you were all made without one, BTW.) I'm looking at the print head height as a primary culprit here because that part looks like the head is flying way high, and possibly not feeding fast enough in relation to movement speed.