Free Downloads

Grbl Hot Wire Firmware and Software

This is the latest firmware and software for grbl, grblHAL and FluidNC. This was released in December 2025. It contains all the firmware and software in one download. See the post here for full details Grbl HotWire for CNC Foam Cutters

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GRBL Hot Wire Firmware and Software V2.51 1.77 MB 8638 downloads

This is the latest software and firmware for the CNC Foam Cutter version v2.51,…
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Kerf Test G-code (XYZA) 72.24 KB 1855 downloads

Please follow the instructions in the ebook in the section entitled Kerf  …

Axis Letter Change

In the previous version (5.13) of the software/firmware, the axes letters were XYZU, which originated from the original grbl firmware. However, to simplify the implementation of further developments on grblHAL firmware and 32-bit controller boards, I decided to switch to the more conventional XYZA axes letters.

G-code generators can configure their axes for different axes letters, If you’ve got some g-code that you want to convert to the new axis letters use the Windows utility below to convert to the new format.

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Change Axes Letter from XYZU to XYZA 617.93 KB 1504 downloads

This small Windows utility changes the axis letters from XYZU to XYZA. This will…

GRBL 1.1 Hot Wire Mega 5X

Development of this firmware and software has now stopped please use Grbl Hot Wire above which has support for 8 and 32-bit boards and several new features. It’s easy to upgrade from previous versions and retains all your settings follow the instructions here https://rckeith.co.uk/grbl-hotwire-for-cnc-foam-cutters/#upgrading-from-version-513

G-code files.

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G-code for Clark-Y (XYZA) wing 4.28 KB 1671 downloads

This is a Clark-Y test file for the Grbl HotWire Software using axes XYZA it can…
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Kerf Test G-code (XYZA) 72.24 KB 1855 downloads

Please follow the instructions in the ebook in the section entitled Kerf  …
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Clark-Y test file for Marlin Firmware XYUV axes 42.18 KB 1040 downloads

Use this file to test the foam cutter using Marlin firmware from https://github.com/rcKeith/Marlin …
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G-code Clark-Y (XYUV) 250mm Root chord wing – LinuxCNC 4.28 KB 1174 downloads

This g-code accompanies the article LinuxCNC for 4 Axis CNC Foam Cutters This…
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TriCopter Frame – LinuxCNC 33.46 KB 1003 downloads

This zip file contains the gcode for the TriCopter frame. It requires a 3mm bit and…

    G-Code Generators

    Using DAT files you can generate 4 axis g-code for wings.  Several files are included in the download and more can be found here  https://m-selig.ae.illinois.edu/ads/coord_database.html

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    DXFtoDAT Command Line 21.96 MB 920 downloads

    This is the command line version. The Windows app is just a front end to this. Just…
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    DXFtoDAT 4.00 KB 2463 downloads

    If you have Windows 11 and it does not work make sure you have Install .NetFramework…
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    Fusion 360 Post Processor for Foam Cutting 4.89 KB 1430 downloads

    This download contains the post-processor based on the grbl laser post-processor…
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    Wing G-Code (Windows 64bit Executable) 11.92 MB 3927 downloads

    This is the Windows Executable version of the Wing G-Code Python script. Just…
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    Wing G-Code (Python3 script) 33.38 KB 1526 downloads

    This script requires Python3 which you can find here https://www.python.org/downloads/ I…
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    Clark-Y DAT file 2.73 KB 1548 downloads

    This is a Clark-y dat file that should work with most applications …

      GRBL Mega 5X for 3 Axis Router/Mill

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      MKS GEN L V1.0 Firmware 3 Axis CNC Router 678.96 KB 1403 downloads

      This is the firmware I use on my OX CNC router with the MKS Gen L V1.0 board for…

      LinuxCNC Configs

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      LinuxCNC foam cutter hal file 4.54 KB 952 downloads

      Hal file to work with 4 axis foam cutter and TB6560 all in one board confgiured with…
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      LinuxCNC foam-cutter.ini 2.53 KB 875 downloads

      This is the foam cutter ini file for a 4 axis TB6560 …

        Diagrams

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        Homing and Limits 37.44 KB 2725 downloads

        This is the diagram on how to set up home and limit switches on the TB6560 CNC board…

          Priory Models Lancaster

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          Priory Models Lancaster Instructions 4.10 MB 1455 downloads

          These are a scanned copy of the original instructions. A few guys have contacted…