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  1. Light weight chinese penhold with Stiga super carbon

    Find this 1979 Stiga Stellan Bengtsson super carbon from my vault and build a 167g Chinese penhold racket FH rakza7 1.8mm BH C-1 2mm.
  2. Let Detector

    For fun, I built an old school "Let detector" for my club. It consists of an accelerometer, an LCD, a micocontroller, and battery power source. The accelerometer hangs off the net, and an LED flashes when vibration of the net is detected. Sensitivity can be adjusted by a dial on the...
  3. Reverse pendulum serve: swing arm forward or backward ?

    There seems to be two schools of thought on RPS. There are Forward swingers: Matilda: Timo Boll: There are Backward swingers: Togami: See recent ATTU Fan Zhendong: 孙浩泓: in 5:43, he emphasizes backward swing for better spin production Zhang Jike: hard to tell, he has the least...
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