We have developed our own post processor for SprutCAM software, which is fully compatible with our SourceRabbit GCode Sender. Since today (2021-04-20) you can download the SprutCAM 4-Axis GRBL post processor for free from our website's downloads section.
You can find the SprutCAM 4-Axis GRBL post processor under the Help Section on our website
After our engagement with GRBL for ESP32 we decided to expand the capabilities of our GCode Sender and create a new control software for 4-Axis CNC Machines. Our new GCode Sender 4-Axis , which is now available for purchase through our website, replaces our old 3-axis software, is fully compatible with the classic 3-Axis GRBL for AVR, the new Grbl_Esp32 and of course the SourceRabbit 4-Axis CNC Motherboard . We plan to implement many new tools and features to the GCode Sender 4-Axis. On our next update we will add a new better User Interface (UI). Stay tuned.