Marble Run This simple-yet-elegant Ugears clock is

This simple-yet-elegant Ugears clock is driven by the force of gravity pulling down a weighted bag (you can fill the bag with sand or salt)

The Zeppelin could achieve a top speed of 80 mph (70 knots) at its maximum thrust of 2

She was originally known as the Pelican

blending into the textures for a hidden surprise

Marble Run This simple-yet-elegant Ugears clock isIntroducing the mechanical Marble Run Stepped Hoist, the second in a series of Ugears modular marble runs. This fun and fascinating wooden marble run features an ingenious 3 stepped alternating lift mechanism and a set of new features to hold your attention as you watch the marbles make their cyclical journey. Multiple tracks and elements are packed into a compact space in this DIY marble run. The model has a 3 stage alternating lift that hands the