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It can be a real drag to fix a circuit board which has stopped working as intended, especially if you don’t have any reference material for the product. That’s the position that [Todd Harrison] found himself in when the controller for his mini-lathe gave up the ghost. He undertook and hefty repair process and eventually [...]

Tags:  repair board controller todd-harrison motor-controller-board mini-lathe hacks  

Tinywrench is [Tanjent's] take on a motor controller board. It aims to replicate all of the functions that a standalone motor controller chip offers at as low a cost as possible. Early results are in. It works, and as seen can be assembled for about $8. The top of the device offers a terminal block [...]

Tags:  controller tinywrench motor motor-controller-board controller-chip terminal-block microcontrollers  

This little rover gets around on rough terrain pretty well. [Dean Segovis] built it using parts from a Roomba. The Roomba uses wheels in conjunction with gearboxes that handle a lot of the dirty work in getting this prototype going. [Dean] grabbed four of them, as well as the motor controller board and batter, and [...]

Tags:  rover roomba terrain dean-segovis dean motor-controller-board gearboxes rough-terrain robots hacks