@droftarts said in Support for AS5311 High Resolution Linear Encoder:
@Guus The controller board is interesting. It looks like it has an ARM MCU, and the encoder plugs in directly to that. The stepper drivers are standard 'stepstick' plug-in modules, and are probably Allegro A4988 drivers. I'd guess the firmware reads the motor position from the encoder, and maybe adjusts the position, but this isn't quite closed loop, as it's not taking the motor commutation into account, which allows for accurate positioning. The drivers on the Mini 5+, even though in open loop mode, will be nicer!
Interesting that there are 5 drivers on the motor board. I guess it uses three for X, Y and Z. Does it use the driver with 8 output pins for Y? What does it use the other drivers for? I did see it comes with other tools, eg paste dispenser and pick-and-place toolhead, so I assume those.
Ian
There must have been many problems with this early design of the machine. The manufacturer panicked and stopped the production and closed down his company.
By installing a Duet 3 mini 5+ in this machine I have the latest and greatest controller and support!!!!! Thanks!!!!!
I won't be using the linear encoder for the time being. I will install 3 end stops on the machine. And I will install 4 Duet 3 Expansion 1HCL boards and 4 Duet 3 magnetic encoders. This way I will have a closed loop. The machine has robust spindles and I think the linear encoders are no longer necessary. So no new c code is needed.
If this setup is not accurate enough, I will try to figure out how to add the linear encoders to the machine.
Guus