I've been struggling a little with the volcano 1.2mm as you may have read. What I didn't do is post the few things I posted with the volcano 1.2 that were truly awesome. Aside from all other issues you may encounter, one thing is certain; vases print beautifully with the volcano. That 1.2 mm wall is solid, looks great, and gives a really solid feel to the whole thing. Following someone else's lead, I printed the Koch Snowflake Fractal Vase: http://www.thingiverse.com/thing:37117 I printed this off first before I changed to the volcano, trying a couple of different settings, the switched to the volcano. From left to right here, we have volcano 1.2mm @ 0.6mm layer height, 0.4 standard nozzle at 0.4mm layer height (actually also with a daft setting of 0.6mm extrusion width), then on the right we have 0.4 standard nozzle with a 0.2mm layer So, I thicker layer, even with the same wall thickness adds solidity even without adding more total material, and then the 1.2mm volcano wall just looks completely solid. It feels a good deal heavier too. By the way, I think the volcano vase on the left printed in just 23 minutes. I tried water tests, partly for fun as I knew that one in the middle had holes In fact, the little volcano vase held water for a long long time, and only after spending the night in a little bowl, with the vase full of water, did the liquid finally find a way through. Those walls look good for holding water, but I think the construction of the base was the issue. I've considered spraying some Games Workshop Satin Purity Seal on it; some other time .... Happy with this, I printed one double the size, or at a full 10-% size: And tested with water No joy. This one leaked more quickly. There was actually a fault in the build (repaired with a little heat) but even so, the base was the weakness. I finally printed one last one at 140% height, but kept X and Y at 100%. Really nice, but unfortunately I forgot to photo it before giving it to my Mum over the weekend.