This latest eBook accompanies the new software and firmware, released in April 2026

Please check back. I do update the eBook with new information and user feedback. The ebook has been downloaded 6483 times, and this update was released in April 2026

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What’s in this eBook 6.5

This e-book covers the latest software and firmware. The Windows software is now called Grbl Hot Wire, using XYZA axes letters.
Grbl Hot Wire 6.4 update
Full instructions showing how to build the machine
An updated mechanical design from my original. I’ve made several modifications to make the build simpler. The new design is lighter and runs with stepper motors and controllers used in 3d printers. You can still use other stepper motors and controllers if you wish.
Links to the plans for the mechanical build. Full-size templates for all but 2 parts of the build. The plans are just $3.00
Detailed Electronics installation and configuration for Arduino Mega 2560 with a RAMPS 1.4, MKS Gen L V1/V2 and BTT SKR Pico (32-bit)
Using Marlin 3d Printer Firmware instead of a PC.
Part list required to build the machine.
Foams and Hot Wires. Calculating the Kerf Value.
G-code Generation update with several software options, including free
Tips for builders in the USA, where some metric parts are not economically available, with the inch equivalents that can be used.