Here's a skateboard that doesn't need a hill (or a push-off from your foot)
for propulsion. James Howland and his project buddies, Pat Rimel and Nate
Davis, created a motorized mountainboard as a project for their mechanical
engineering class at Colorado
The gadget has a handheld speed control, and the team was able to get the board
up to speed of 13 miles per hour. The speed decreases while traveling up hills
but still has enough torque to conquer hills with ease. The mountainboard also
has buzzer on the nose that acts as a horn.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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