Tutorials
Introduction to Displays 2
Much like the previous tutorial (how to use a 4-digit seven segment display), this time we’ve got only one seven segment digit, but with a strange number of pins!
Author: Dan
Technically a brain in a jar.
Tutorials
Introduction to Displays 1
Today we’re going to be playing with a 4 character seven segment display. It’s intended for displaying any number with 4 characters.
News
Win $100,000 for your school or university … with a Makelangelo?
http://robotart.org/ is a contest to give away $100,000 to the student team that makes art with a robot.
It’s crazy easy to make some quick cash. Andrew Conru says “The first five US-based teams that upload 6 unique artwork will receive a $2,500 donation to their school!”
The only other way to pull 2.5 gees that fast is in a jet, so unless your robot is a skywriting quadcopter (hmmm…), get our your robot and get in on this yesterday. If only you had a Makelangelo right now!
Registration must be by April 1st, 2016, so hurry!
Thanks to our facebook friends for the hot tip.
News
Jigsolve: Next up…
Next up I have to rotate the center of the gantry so that the bars are one above the other. Two reasons:
1. They will keep the pulleys at either end from bending inwards, which loosens the belt and causes movement problems.
2. When the end effector in the center is vertical, it will be much easier to make a system for lifting the nozzle. My first two lifting systems were not good enough, so this change doesn’t create new work for me.
Edit:
Tutorials
How To move a Stepper Motor with an A4988 driver and an Arduino
Making a stepper motor move is easy with an A4988 driver. They’re super straightforward and very versatile, making them very popular for 3D printers and other DIY CNC machines.
