I have finished my grblHAL CNC Motion Controller board for Teensy 4.1.
Completed board
Unkit Version
Features:
This runs grblHAL, a 32 bit ARM port of GRBL. The source code is here.
Schematics can be found here.
I've uploaded a shared board to OSHPark here.
Though, to be honest, it would be cheaper to take the gerbers and order the board from a Chinese fab like JLCPCB. Gerbers can be found here.
I have a small number of boards with all the surface mount components (except the eeprom) already soldered on - AKA the Unkit Version. If interested, you can get one here.
I have a manual near completion and will post it on the github page here when done. It includes a BOM and assembly instructions.
In addition, the PCB has the footprint for an Ethernet MagJack. The hardware works but Ethernet for grblHAL on the T4.1 is not completed. I am hoping to get that working within a week or so. Check the github page for status.
Completed board
Unkit Version
Features:
- 5 Axis control outputs – 5V compatible.
- Independent enables for each axis.
- 10 Opto-isolated inputs including standard GRBL controls and limit switches for all axes.
- 7 Relay Outputs – Spindle, Mist Coolant, Flood Coolant, Dust Collector and 3 auxiliary relays. Each output can control a relay coil directly or 5V TTL (SSR compatible) devices.
- Dust Collector relay support. Activated by spindle enable.
- Separate control of Dust Collector relay via pin header.
- Relay coil voltage switchable between 5V and 12V.
- Standard GRBL spindle control outputs – 5V compliant.
- 0-10V spindle control output for driving VFDs.
- Screw Terminals for reliable connections available for most I/O.
- 4 Digital Inputs – EMI protected, 15.9KHz low pass filter, Schmitt Trigger.
- I2C header.
- EEPROM footprint for SOIC8 devices.
- LED indicators for 5V and 12V.
- USB interface.
- Ethernet interface.
- Serial I/O Header
This runs grblHAL, a 32 bit ARM port of GRBL. The source code is here.
Schematics can be found here.
I've uploaded a shared board to OSHPark here.
Though, to be honest, it would be cheaper to take the gerbers and order the board from a Chinese fab like JLCPCB. Gerbers can be found here.
I have a small number of boards with all the surface mount components (except the eeprom) already soldered on - AKA the Unkit Version. If interested, you can get one here.
I have a manual near completion and will post it on the github page here when done. It includes a BOM and assembly instructions.
In addition, the PCB has the footprint for an Ethernet MagJack. The hardware works but Ethernet for grblHAL on the T4.1 is not completed. I am hoping to get that working within a week or so. Check the github page for status.
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