I just recently received my Taz2, and have been working with it for a little over a week trying to sort out the one issue I’m having. I’m posting this under Hardware because I think it’s a hardware issue, but it’s strange enough that if it’s not, I’m hoping someone can move the thread.
I have a model that I built (http://www.thingiverse.com/thing:110721) and that’s I’ve printed several of on a MakerBot Replicator 1 in PLA at .2mm layers at 190 degrees. They print uniformly awesome on the Makerbot…solid, clean, all the lines sharp and the most important bit (the rails for the lid (http://www.thingiverse.com/thing:110710) are clean and strong. When I print the two pieces, they slide together perfectly.
But not on my Taz. I’m up to about 8 prints of the box, trying a variety of different settings. I’ve tried .1mm layers, .2mm layers, 200 degrees, 190 degrees. The bed seems to be dead level…I don’t have any issue with sticking/peeling, the bottom layer is great. What’s NOT great is the top layer, which is a wreck. The top 10 or so layers are just terrible, stringy. It looks like the very top layer isn’t even printing properly, because you can see into the structure on some of the prints, like the tops layers just aren’t being printed. The top layer is stringy, to the point where the rails of the lid are just loose threads, not even solid.
I’m slicing directly in the newest version of Slic3r, all my settings look right as far as temperature, diameter of filament, etc, and then loading and printing from the SD card. I’m beginning to think this is related to all the PLA difficulty that people are having with the Taz, given that it’s late in the print that things start falling apart…it’s about a 2.5 hour print at .2 layers and 50% fill, which seems pretty short to have that much heat creep, but it very well could be.
If anyone has any thoughts, I’m all ears. It’s driving me batty.