The robot, which will cost about $80 in parts, uses two stepper motors for greater movement precision than could be had with normal DC models. Regular DC motors can have mechanical friction and electric resistance differences. This can cause performance differences. As a result the robot will not move in a straight line. This bot…
It can be controlled through logic levels to set the speed and the direction of the rotation of CC brushed motors and stepper motors; outputs have LEDs indicating the rotation direction. The circuit board we are presenting this time is based on the dual-bridge driver L298N, in a traditionally mounted version in a…
Using an Arduino Micro for control, the instructables user Joebarteam came up with a way to biometrically secure his garage. What could be better than using your fingerprint to unlock your garage? To this end, Joe’ came up with a system that unlocks his door using a fingerprint scanner, and a bistable relay to disable communication between…
Using an Arduino Nano and two rotary stages, this Maker hacked together a panoramic thermal imaging camera. After ordering and finally receiving an infrared thermometer in the mail, the author of this project set to work to construct his own scanning thermometer. This type of setup acts like an IR camera, but instead of taking one instantaneous…
Assuming that time is linear, Jonathan Odom has decided to create a clock illustrating time’s linearity. He built a beautifully crafted clock that uses two rack and pinion assemblies to move a line of numbers for hours on top of another line signifying minutes. He made it using every machine at Pier9 workshop (3D printer,…
A maker named Aldric Négrier has designed and built several 3D printers, many of which he has shared on Instructables. Their latest is the RooBee One, an aluminum-frame SLA-DLP printer named for its bright red color. The design is based on two other open source machines: the Cristelia LCD SLA 3D printer and the Vulcanus MAX, and…
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