Following up from Day 4 we have some new-and-improved LEGO marble run pieces:
STL file: http://www.geekhaus.com/makerhome/day8_legomarble.stl
Tinkercad link: https://tinkercad.com/things/31fZLaKI5PM-day-8-lego-marble-run-chapter-2
Thingiverse link: http://www.thingiverse.com/thing:145842
Settings: MakerWare “low” with no raft and custom supports as described below, with two pieces printing in 37 minutes.
Technical notes: To make the supports easier to remove, with enough support to hold up the ramps but no support inside the “LEGO” part, I made a new slicing profile based on the “MakerBot Slicer Low PLA Template” where I changed the lines that initially appear as:
"bridgeAnchorMinimumLength": 0.8, "bridgeAnchorWidth": 0.8, "raftBaseDensity": 0.7, "doSupport": false, "supportDensity": 0.2, "supportExtraDistance": 0.5, "supportAngle": 68.0,
"bridgeAnchorMinimumLength": 0.3, "bridgeAnchorWidth": 0.3, "raftBaseDensity": 0.4, "doSupport": true, "supportDensity": 0.15, "supportExtraDistance": 0, "supportAngle": 80.0,
Still to come: More types of pieces – curves and corners, holes and spirals… ??
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