I had already set up OctoPrint on a Raspberry Pi for one of my 3D printers. After some tweaking and research, I realized that I could use the same setup to send G-code to my laser engraver. Since ...

Machine Grade Control, GPS, Laser & Other Match 3D Grade Control Solution to the Job Construction jobsite demands determine the best automated grade control solution for your earthmovers.

Once the laser is hanging off the fan port of your printer’s controller, you can turn it on with the normal GCode commands for fan control, M106 and M107 (to turn it on and off, respectively).

Here’s one alternative to consider: 3D printing an arcade controller housing. [Florian] already had experience building these using laser cut acrylic and MDF.

The Trimble GCS900 3D grade control solution is now available for Bobcat all-wheel-steer loaders, compact track loaders and skid-steer loaders.

Update: Prusa has released a new version of the MK4, the MK4S. It's an incremental upgrade but adds a lot of great features.