M3 Rosettes for Spring-loaded Platform Adjustment (Q43059)

Rosettes for M3 nuts that make spring-loaded leveling easier. A lot easier. I even reach in and give them a quick tweak while the first layer is printing. I made these a few months ago and forgot to post them. Aside from the rosettes, my leveling method is darn close to haqnmaq's recent Thing: http://www.thingiverse.com/thing:6558 The rosettes are useful anywhere, of course, but I made them specifically for leveling the build platform on my cupcake. The gist: • Three screws instead of four (with four screws one nut always seems to end up loose) • Conical springs (I kept bottoming out on one side. Conical springs can collapse almost flat) and M3 thin nuts to keep the platform from getting too tall. • Flathead screws to avoid collisions with the extruder nozzle. I ordered my conical springs from McMaster. They're very nice, just the right size, and strong....but $14.73!? For three springs?!?! Later I realized that I was surrounded by conical compression springs: anything that takes AA batteries will have a double set of them just the right size, so raid your junk drawer.