To develop through the use and adaptation of existing open source projects, electronics and software for controlling DC motors with feedback. Scope - consumer products, such as low cost mass production 3d printers, low-cost CNC machines for students and home use, various robotics projects.
Use existing open source development of electronics and software in this field, in order to reduce development time of first pilot version to a minimum.
Create a single electronic control board that will include servo drivers, feedback inputs, inputs from temperature sensors, outputs to extruder heaters and control of printing plate.
Number of drivers for controlling servo motors - 5
(including 5 inputs from rotary position decoders and 5 control outputs to DC brushed motors)
Number of inputs thermistors (temperature sensors) - 3
Number of outputs to сcontrol extruder heaters - 2
Number of outputs to control heating of the printing plate - 1
Type of connectivity to receive executable Gcode - USB
Ability to use BT connectivity BT for wireless control and data transfer
Ability to connect with existing reprap LCD smart display controller with rotary encoder (encoder to select from the menu) and an SD card reader
Use of the cheapest brushed DC motors from Mabuchi 280 and Mabuchi 540.
Use of the feedback device – off shelf, cheap, Chinese-made rotary position decoders.
Power supply for the entire system - 12V
Further details of the implementation to be discussed and finalized with freelancer.