This is the research repository for Desktop Electrospinning: A Single Extruder 3D Printer for Producing Rigid Plastic and Electrospun Textiles. It contains the 3D printer firmware and control electronics set-up for the printer characterized in the publication that can perform rigid plastic FDM 3D printer as well as melt electrospinning. More information about the work can be found here.
The publication is also freely available here.
This 3D printer uses a modified version of the Repeiter Firmware (v0.92) that includes add-ons for controlling high voltage via an infared signal. It also include firmware for two slave Arduino Nanos. One receives a high/low voltage signal from the 3D printer and sends out a corresponding an IR signal; the other Nano receives the IR signal and triggers a mechanical servo to open/close a connection to the high voltage ground on the 3D printer's build plate as well as toggle a solid-state relay that is connected to the high voltage power supply's AC-to-DC power adapter as shown in the simplified diagram below:
- High Voltage Power Supply, HV350REG(+), 5-35kV up to 1mA Positive (+) x 1 - From Amazing1 Output
- Arduino Nano x 2 - From Amazon
- IR Receiver Diode - can use TSOP38238
- IR LED 950nm x 1 - From Sparkfun
- Servo S90 x 1 - From Amazon
- Solid State Relay, 40A (3-32V DC Input) x 1 - From Sparkfun
- Resistors - From Amazon
- 330 Ohm Resistor x 1
- 470 Ohm Resistor x 3
- Servo - From Amazon
The necessary electrical connections are shown in the circuit schematics below.
Note: RAMPS 1.4/Arduino Mega Pin out diagram can be found here.
Michael L. Rivera and Scott E. Hudson. 2019. Desktop Electrospinning: A Single Extruder 3D Printer for Producing Rigid Plastic and Electrospun Textiles. In CHI Conference on Human Factors in Computing Systems Proceedings (CHI 2019), May 4–9, 2019, Glasgow, Scotland UK. ACM, New York, NY, USA, 12 pages. https://doi.org/10.1145/3290605.3300434
Copyright (c) 2018 Michael Rivera
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