I used shield to covert a manual Bridgeport to a CNC. I also used the Isolation board to add the limit switches.

He was very prompt in answering a couple questions. They were both easy to assemble.

I added two 3D printed bridges between the four holds on the shield so I could strain relief the wires going to the terminal blocks.

I had 12 volts in my control box for a fan so I used a car USB converter to get the 5V to drive the isolation board in addition to the Mega Arduino 5v..

A pleasure to deal with and the products exactly met my needs.

Paul | Sept. 8, 2020

made cnc wiring easy

For GRBLDuino Mega Lite-GRBL 1.1 Arduino CNC Shield

Like the screw down wire holders. Being able to easily clone a drive. Easy to assemble. Guide could be more detailed on which way capacitors & resistor are placed for us rookies. Working great in my cnc.

Peter | July 25, 2020

Great controller for upgrading our (used) CNC router

For GRBLDuino Uno Lite - GRBL 1.1 CNC Controller

We bought a used CNC milling machine without a USB port (with an LPT port).
Because the machine is also in good condition, we have made it up-to-date with this upgrade. Shipping to the Netherlands took a while, but we received everything neatly packed.
Soldering was easy and finished quickly. Recommended!

George | March 25, 2020

GRBLDuino Uno Lite - GRBL 1.1 CNC Controller

For GRBLDuino Uno Lite - GRBL 1.1 CNC Controller

What a great little device. Easy to assemble and it worked first time. Unlike some other boards I bought on Tindie the limit switches worked first try. I also have used the E-Stop, Abort, Hold and Resume. I'm having some trouble with the Z Probe but I think it's the UGS Platform software and not the GRBLDuino.

All in all a very good buy at an excellent price!

Corey | March 8, 2020

Outstanding Product

For CNC Optical Limit Switch Isolator - GRBL

This is my first CNC build. I bought these cancel the limit switch noise and they work great. I have home built cnc that I built and it has ran flawless! Awesome price and nicely labeled. I am alittle on the new side of electronics so the paper work felt more advance to me being new to Arduino. But the help at the forum was awesome. I would definitely recommend this for anyone.

George | March 3, 2020

Great Little Optical Limit Switch Isolator

For CNC Optical Limit Switch Isolator - GRBL

This board was easy to assemble with good instructions. It worked the first time without a hitch. After having problems with false positives this cured the situation up. Thanks for making a great little product!