Your latest test cube looks good to me. To add to the discussion on Marlin or 5D, I'll also say go with Marlin right away. There is no need for you to setup and mess with firmware which you won't be using in the end anyway. My experience was that I haven't had a single decent print with 5d EVER. But when I switched to Marlin and netfabb most of my problems just disappeared.
Also, I use hatching instead of contours almost all the time. I found it is much easier to dial in to get great results, and it produces stronger up and down skins, at least in my experience. Also I think the sagging issue wont be a problem with hatching, I used 2.5 mm infill spacing with three upskins successfully with a great finish and no sagging. Try it and see if it works better for you too.
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Finally got around to tightening the nozzle to try and eliminate the leak. Sadly, it’s better but not completely gone. I guess I will have to take the nozzle off and seal everything up with some plumbers tape.
I had a go at slicing the calibration cube using netfabb and the standard profile, unmodified. The result can be seen here
https://picasaweb.google.com/lh/photo/a ... directlink
The underlying spacing is visible through the top surface of the cube(I suppose sagging is to be expected with relatively sparse spacing) but I’m not entirely certain that the top surface is as it should be(I have nothing else to compare it with). So I’m posting the result here to inquire if netfabb has demonstrated that the printer extrusion is working as it should.
Thanks.
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