Day 2 - Voronoi box

One of the new Community Shape Scripts on Tinkercad is a very nice Voronoi diagram maker by Brandon Cole (including the code!). As a sort of random test of what sorts of angles we can get away with when printing without supports, here is a trinkets box with Voronoi sides made from Cole's shape script.

STL file: http://geekhaus.com/makerhome/day2_voronoibox.stl
Tinkercad link: https://tinkercad.com/things/hvi2X7DGbgI-day-2-voronoi-box
Thingiverse link: http://www.thingiverse.com/thing:142100

Settings: Standard MakerWare "low" setting with no raft and no supports, on blue painter's tape. Print time 48 minutes.

Technical notes: The Replicator 2 did a good job printing without supports on all but the most extreme overhangs, and an especially nice job of bridging along the top border. The model is a good sample set of what the printer can and cannot handle well. Obviously if you want to make a nice copy of this model then you should use some supports. The edge thickness is 2mm everywhere and fairly sturdy.

Day 1 - Coin traps

For the first day, a simple coin trap for nickels or quarters which we designed in Tinkercad.

STL file: http://geekhaus.com/makerhome/day1_cointrap.stl
Tinkercad link: https://tinkercad.com/things/bJOfGp1qKt7-day-1-coin-trap
Thingiverse link: http://www.thingiverse.com/thing:142078

Settings: We printed these on the MakerWare "low" setting with no raft and no supports on blue painter's tape. Halfway through the print you can pause and drop in the coin, which then gets trapped by the rest of the print. Each one took 20 minutes to print with these settings.

Technical notes: Use "pause" rather than "cold pause", and drop in the coin as quickly as you can. The PLA will continue to extrude out a bit during the pause. In "cold pause" this results in some filament being missing from the next layer of the print, and an unstable print. In "pause" this makes a small bump on the model but that helps to keep the filament inside the extruder.

Stuff you might want to change: The trap is larger than needed for nickels but a little bit too small for completely free movement of quarters. Suggest scaling down/up accordingly for better fits.