UM2 starts shipping with Olsson block included!

[korneel 176]

well @cloakfiend , the nozzle size basically specifies the speed of the extruder.. large nozzle = more filament, smaller nozzle = less filament.

so by running a 0.4 at the 0.6 setting you are overextruding

[ultiarjan 1,223]

Next to the speed it's also determining the path..... wider nozzle is less lines needed in a surface.

When you run a 0.4 at .6 settings your surface lines will not connect....

[cloakfiend 995]

I'm loving it! the quality is much better and i get my print quicker!! more internal stringing but better overhangs and overall quality for some reason, i may try 0.5 instead of 0.6 as i see some non important anomalies. i had a feeing it was just extruder speed related rather than diameter related as all the surfaces are perfectly smooth. Seeing as the um2+ had heavier objects compared to the um2, is it overextruding compared to the um2?

So basically if you see this, you are over-extruding, definitely better than under-extruding!!!

I'm now very happy with my upgrade!

EDIT: the flat surface lines under closer inspection indeed do not connect as ultijan said, but walls connect, so for organic stuf, this is a fantastic time saver, but for flat horizntal stuff no good if you want it perfect. Is there a way of increasing the flow in cura to increase it a touch as i dont like using that setting on the pinter? i only adjust temps live, flow and speed i stay away from ad they make weird noises when you change them.

Edited February 12, 2016 by Guest

[cloakfiend 995]

Here is a blue over-extruded one, exactly the same settings as the red, 0.4 nozzle with 0.6 selected from cura. dutch orange is more runny, meaning it doesnt handle overhangs very well but surface looks good am currently printing slightly lower and dropped it too low at one point so i got some under-extrusion, but that was experimenting to see how low i could go, but lower temps with runny filament doesnt help that much from what i see...

ill post a finished pic for comparisons, but now i think i don't even need the new fan shroud for the ob, this one appears to do the job just fine with minor adjustments to the shape.

[cloakfiend 995]

Here are the finished OB print tests. I lowered the temps too much at the start of the dutch orange, hence the underextruded layer which broke off when I was taking it from the plate. other than that I think the ob is fine for my purposes, I still have one more delicate test but so far so good.

[LePaul 326]

The surface of the blue and red look great

[cloakfiend 995]

The blue is the best quality in my opinion. but they are all good for .04, overhangs did well, all the surfaces are very smooth, its only on the horizontal part of the base that you see the over-extrusion, i didnt relevel or do any atiomic pulls either which is nice as it saves me time.