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Printing issues ...
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I have "Detect Bridging Perimeters" selected, and the infill is set to concentric for both top/bottom and normal fill. Which is strange, as the zig-zags don't look very concentric to me!
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UnlikelyBarley
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Slic3r
Right then, I've been experimenting with bridging on my Mendel90. I've successfully printed a the bridge touture test (http://www.thingiverse.com/thing:12925), but the hollow cube (http://www.thingiverse.com/thing:30171) is causing problems. It appears to be a problem with Slic3r, as the image shows the paths for the bridge layer do not make sense. It is starting paths in mid air I've played wit
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UnlikelyBarley
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Slic3r
Thanks Durke. I played around a bit, recalibrated my bed (amazed how far it had moved, and not sure why) and experimented with temperatures. Got fairly reliable printing now.
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UnlikelyBarley
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Printing
Has anyone added the optional bed fan the the Mendel90? I have got hold of an appropriate fan, but have no idea how I might be able to connect it to the Melzi board. I'm aware that the Melzi has a single fan output, which is occupied by the extruder fan. I saw that nophead once did a hack on a Sanguinololu board to take an extra fan, is this also possible on the Melzi?
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UnlikelyBarley
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Mendel90
I'm new to 3D printing, I've printed a few bits and bobs with my Mendel90. Followed nophead's instructions for bed levelling and calibration. My first few prints came out quite well, but tonight I've been trying to print the RPI bracket and it's failed twice. The first attempt, sliced with Skeinforge using nophead's PLA0.3 profile, came out very "stringy" with the layers not really such together.
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UnlikelyBarley
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Printing
I initially had problems getting PLA to stick to my bed, albeit a heated bed. It was down to surface contamination, a tiny amount of dust and/or grease is enough. I now use supermarket branded vinegar based glass cleaner and kitchen roll before EVERY print.
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UnlikelyBarley
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Printing