Part 3 of Dave & David2 assembling the Inventables X-Carve milling machine. Bonus impromptu rant on the Batteriser for the first 30 minutes!

Time lapse footage of Dave & David 2 assembled the Inventables X-Carve cutting/milling machine. 6.5 hours of build footage in 2 1/2 minutes

Teardown of the new INDUAL 80W industrial LED high bay ceiling light from Lightinstar In particular a close-up look at the 150W 12×12 Chip-On-Board COB LED module from HongliTronic Datasheet UPDATE: Yes, they say they have fixed the issues of mounting and earthing. Forum HERE Podcast: Download

In this tutorial Dave explains how to precisely measure and calculate the remaining (or wasted) energy capacity in a battery using the graphical analysis technique using a spreadsheet. The differences between constant power and constant current loads and when to use them is discussed. Also, the importance of ESR and …

Dave does some more quick basic testing of the La Gard Basic digital safe lock, for any obvious power line exploits. Part 1 is HERE Forum HERE Podcast: Download