EMI - Science, Voodoo or DooDoo?
A way forward to deal with EMI. I've been building CNC machines for more than 20 years and while the technology has changed a lot, one...
So, what's wrong with Grbl on the Arduino?
Arduino Uno vs Pico Smackdown? In a word, nothing is wrong with the Uno. But, there is nothing wrong with the original IBM PC. Though, I...
Which breakout board should I use?
OR Having 2 different boards has lead to a number of people asking which one they should use. Hopefully I can help you work through this...
A Peek at the PicoCNC
I've been designing a new CNC controller breakout board based on the Raspberry Pi Pico. We are calling it the PicoCNC. This is a very...
Using Relays with grblHAL and the T41U5XBB or PicoCNC
I regularly get questions about using relays. So, this blog entry's goal is to make it easier to understand. Relays are often used in CNC...
Logic Relays on the screw terminals?
The screw terminals on the breakout board are used to drive relay coils. As such, they are set up as an open collector output and used...
Using the grblHAL Web Builder
Terje at io-Engineering has created a fantastic builder for grblHAL. This allows you to build custom firmware files with no software...
Making sense of Feeds and Speeds
When I started out, one of the more confusing aspects of CNC machines was the concept of Feeds and Speeds. It seemed like a lot of math...
Networking the T41U5XBB and PicoCNC
Ethernet is a great feature of the T41U5XBB and PicoCNC. It is very easy to set up and use. Because the Ethernet interface uses...
Building the Breakout Board
In pictures - an assembly guide for the T41U5XBB. This guide assumes you have bought the optional assembly kits. Though it should be...
