The FoxTrot Mk II
Description
Updated version of the original Foxtrot ( https://www.thingiverse.com/thing:5328487) that takes less time to print and works much better. Now it's even easier to make your bicycle sound like a horse, and more reliable as well! Based on the design at trotify.com, but with many improvements. Everything was created in Blender, with gear outlines created from gear generation utilities at otvinta.com (seriously, the resources at otvinta are amazing) Upgrades: - New symmetrical design that avoids the whole thing slipping off to one side and losing traction - Unified body that eliminates skipping when travelling over bumps - Symmetrical drive gears also prevent the main armature from skewing to the side Hardware:: - 3 5/16 or 3 M8 bolts - 6 5/16 or M8 jam nuts - 6 5/16 or M8 fender washers (optional but recommended) - 4 5/16 or M8 standard washers (optional but recommended) - 4 or 5 M4 bolts and nuts (depending on reflector mounting option) Assembly: Glue the two halves of the main drive wheel to each other. Do the same with the two halves of the tire wheel. Assemble with 3 M8 or 5/16 bolts and jam nuts on the axles and reflector mount, and 3 M4 screws and nuts for the "coconut" halves. Glue the top shell mount to the top armature, and the bottom shell mount to the main body. You will also need either the legacy reflector mount or one of the modern ones from the parts list, but not both. 1-2 additional M4 screws and nuts are needed for the reflector mount, depending on which one you choose. Washers on the axles are not a bad idea either. Use white lithium grease (or something slippery) on the eccentric wheel to avoid excessive friction against the main armature that might melt the plastic. Finally, a rubber band should be stretched across the top to keep downward tension on the main armature. When gluing, an acrylic solvent to seriously bond the parts is recommended, but not required. I personally use Weld-On #4. Please print the three test fit pieces to verify your printer's tolerances before printing the rest of these models. Print the fake coconut halves with "fuzzy skin" to add that silly touch to this otherwise totally serious and necessary machinery.
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