LinuxCNC + Orange Pi (allwincnc)

Thanks. I did install a heat sink. Fan will be installed soon too. Power supply right now is a 10A bench power supply set to 5.1V. A 5V 2.5A power supply with Orange Pi specific connector is on the way.

For the image, I understand that there will be changes required from my configuration, but I also think there may be many that would like to try this project but may be intimidated. I intend a basic starting point with detailed step by step instructions for editing the configuration files to achieve a basic machine setup. I figure I'm going to image it anyway for my own backup purposes and would make it available on my google drive for anyone interested.

So while waiting for stuff to come in I have been thinking more. One thing I have always wanted to do is to CNC my small 9x20 lathe. But if I CNC the lathe I would absolutely want to have a spindle encoder so that I could do spindle sync to do threading operations. Is there anything on the Orange Pi implementation of LinuxCNC that would prevent spindle synchronized motion for threading, either on a lathe, or maybe also on a mill for tapping?

Also, for the lathe, I would like to put a pair of hand wheel encoders on, one for manually controlling the X axis and one for the Z axis. This would enable using the lathe like a pseudo manual lathe as well as for CNC. Would this also be possible?

Thanks.

Is there anything on the Orange Pi implementation of LinuxCNC that would prevent spindle synchronized motion for threading, either on a lathe, or maybe also on a mill for tapping?

Encoder feedback for closed loop was worked on. I have not tried it yet to see how far along he got. The only problem might be how fast can position info be passed back to the big ARM cores for closing the loop for spindle synchronization.

Also, for the lathe, I would like to put a pair of hand wheel encoders on, one for manually controlling the X axis and one for the Z axis. This would enable using the lathe like a pseudo manual lathe as well as for CNC. Would this also be possible?
 

It should not be a problem unless you are trying to hand turn and run a program at the same time with closed loop. Not that you would. In manual mode the drives are disabled so you can freely turn the hand wheels.

EDIT:  I found what I needed in some of the documentation and in this loooong thread.

BTW:  I think you misunderstood what I was talking about. My lather will not have any direct mechanical connection to handwheels.  I intend to use handwheel encoders, manual pulse generators, or whatever you want to call them to simulate the manual cranks on a lathe. They would be connected electronically to LinuxCNC and used in jog mode like the manual cranks would, but all motion would be done by LinuxCNC driving the stepper motors.

Thanks

I think this project is dead, it was never finished. I would look more at the STM build with Remora. I have an H3 2gb board just sitting if this does ever start back up.

Have you noticed that 109jb is trying to work on it and fix it?