A 3D Printer for Interactive Electromagnetic Devices

We introduce a new form of low-cost 3D printer to print interactive electromechanical objects with wound in place coils. At the heart of this printer is a mechanism for depositing wire within a five degree of freedom (5DOF) fused deposition modeling (FDM) 3D printer. Copper wire can be used with this mechanism to form coils which induce magnetic fields as a current is passed through them. Soft iron wire can additionally be used to form components with high magnetic permeability which are thus able to shape and direct these magnetic fields to where they are needed. When fabricated with structural plastic elements, this allows simple but complete custom electromagnetic devices to be 3D printed. As examples, we demonstrate the fabrication of a solenoid actuator for the arm of a Lucky Cat figurine, a 6-pole motor stepper stator, a reluctance motor rotor and a Ferrofluid display. In addition, we show how printed coils which generate small currents in response to user actions can be used as input sensors in interactive devices.

[1]  Sean Follmer,et al.  Makers' Marks: Physical Markup for Designing and Fabricating Functional Objects , 2015, UIST.

[2]  Martin Schmitz,et al.  Capricate: A Fabrication Pipeline to Design and 3D Print Capacitive Touch Sensors for Interactive Objects , 2015, UIST.

[3]  Mark A. Skylar-Scott,et al.  Laser-assisted direct ink writing of planar and 3D metal architectures , 2016, Proceedings of the National Academy of Sciences.

[4]  Min Cheol Lee,et al.  Cooperative Tool Path Planning for Wire Embedding on Additively Manufactured Curved Surfaces Using Robot Kinematics , 2015 .

[5]  Ivan Poupyrev,et al.  3D printed interactive speakers , 2014, CHI.

[6]  Steve Marschner,et al.  On-The-Fly Print: Incremental Printing While Modelling , 2016, CHI.

[7]  Ivan Poupyrev,et al.  Printed optics: 3D printing of embedded optical elements for interactive devices , 2012, UIST.

[8]  Björn Hartmann,et al.  Sauron: embedded single-camera sensing of printed physical user interfaces , 2013, UIST.

[9]  Patrick Olivier,et al.  Making 3D printed objects interactive using wireless accelerometers , 2014, CHI Extended Abstracts.

[10]  R. B. Wicker,et al.  COOPERATIVE FABRICATION METHODOLOGY FOR EMBEDDING WIREON CURVED SURFACES , 2014 .

[11]  Scott E. Hudson,et al.  A Layered Fabric 3D Printer for Soft Interactive Objects , 2015, CHI.

[12]  Yunbo Zhang,et al.  RevoMaker: Enabling Multi-directional and Functionally-embedded 3D printing using a Rotational Cuboidal Platform , 2015, UIST.

[13]  Daniela Rus,et al.  Printable hydraulics: A method for fabricating robots by 3D co-printing solids and liquids , 2015, 2016 IEEE International Conference on Robotics and Automation (ICRA).

[14]  SaariMatt,et al.  Fiber Encapsulation Additive Manufacturing: An Enabling Technology for 3D Printing of Electromechanical Devices and Robotic Components , 2015 .

[15]  Chris Harrison,et al.  3D Printing Pneumatic Device Controls with Variable Activation Force Capabilities , 2015, CHI.