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FDM Printing With Polycarbonate

FDM Printing With Polycarbonate

Rich was curious about printing with polycarbonate (PC), but couldn’t find any definitive answers to his questions online. So he bought a roll of 1.6mm PC filament and started experimenting, and his reports are fairly glowing. PC melts hotter than ABS or PLA, is more rigid, and comes out of the printer cloudy, which some have suggested may be due to atmospheric moisture.

Ping Pong vs. an Invisible Opponent

This gadget, shaped exactly like a ping pong paddle, allows the user to play a rousing game against an invisible opponent.

The Self Table Tennis senses how hard you are swinging and plays an appropriate volume sound to match. There are three game styles- easy and hard rally and rhythm mode. I’m still a little unclear (even after watching the video) how you win or lose points but it looks like fun to just swing the racket around and hit invisible balls around.

It looks pretty neat, but seems more like a technical challenge to me. A microcontroller and an accelerometer could have any seasoned maker heading in the right direction toward a DIY version of this. [via Craziest Gadgets]

Math Monday: Candy Pi Calculator

Math Monday: Candy Pi Calculator

There are many ways to calculate an approximation to pi, but rarely is math as delicious as in this idea from Davidson College professor Tim Chartier. Make a quarter circle in a square of graph paper and place chocolate chips on the squares that lie inside the circle. If you now count the chips and compute four times the number of chocolate chips divided by the total number of squares, that will be approximately pi.

E-Textile Lounge: Lynne Bruning

Lynne Bruning’s E-Textile Lounge at Maker Faire Bay Area 2011 is a place where anyone can learn to incorporate electronics into their fashion. The techniques she teaches include sewing, soldering, circuit building. The results are beautiful and creative wearables. Watch more videos from Maker Faire Bay Area. Subscribe to the Maker Faire podcast in iTunes, […]