The seven-minute abs workout was put together by fitness trainer ... I found that being asked to stick to the beat was a challenge, but one that motivated me to keep going with each exercise ...

[Chris] has been having some real problems getting PLA to stick to the build platform of ... made from saturating a bottle of acetone with ABS leftovers. In the clip after the break he shows ...

I tried this 7-minute abs workout that makes you do your reps to the beat of a Daft Punk song and it was a surprisingly good way to stay motivated.