I have done a version of Sawyer conveyor belt:
I have enjoyed with the module , and the mechanism is great.
As mi collection is Technic sets from 2016 onward, I have replaced the 40 teeth gears and give the module a full technic style.
I have also used the PF IR speed control instead the 9v train control system.
This is the first GBC that I do, and as noob, has been difficult for me to do the input ramp without system parts, but I'm happy with the result.
Thanks @Sawyer for share the module.