Aiph5u
January 18, 2023, 6:56pm
38
Hey Fred11,
Fred11:
I have two questions:
between the two controller, onefinty and buildbotics controllers is it only the screen that has disappeared? I have one at home
The Buildbotics application…
evolved a bit further ([1] , [2] ), but some of its restrictions still remain compared to more professional CNC controllers.
But now it has nice new features like programmable G-code macros, remappable I/O ports, 5 V I/O (instead of 3.3 V), G-code is editable in the controller display, more VFDs supported, 0-10 V analog spindle control added (besides PWM and ModBus), better Modbus debugging, and it has a 15-pin Auxiliary motor control port which provides access to the step{X,Y,Z,A}, dir{X,Y,Z,A}, motor enable, and motor fault inputs to the four motor drivers. These lines provide the ability to bypass the internal motor drivers and control external drivers. This allows you to attach closed-loop stepper drivers like this one and to drive closed-loop stepper motors on the Onefinity classical series (like the Elite Series do).
Regarding the small LCD, if you locate it on the Buildbotics circuit diagram , it looks like it is a serial device that is attached to SDA and SCL (i2c bus) of the Raspberry Pi 40-pin header. But you would need the firmware to support it. Onefinity skipped this small LCD.
Top view of Buildbotics AVR Mainboard
On this i2c bus, there are also the main AVR and the TinyAVR (on the Onefinity controller as well).
Install what exactly where?