Closed-Loop Control of 3D Printers via Webservices Felix Baumann and - PowerPoint PPT Presentation

01 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work ZEUS 2017 - Lugano, Switzerland 2017-02-13 Closed-Loop Control of 3D Printers via Webservices Felix Baumann and Dieter Roller Wintersemester 2017 / 2018 Betreuer: Univ-Prof. Hon-Prof. Dieter Roller Koordinator: Dipl.-Inf. Felix Baumann 13. Februar 2017 Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

02 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Table of Content Motivation and Goals 1 Benefits and Drawbacks 2 Future Work 3 Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

03 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Author Information Research group at Univ. of Stuttgart, Germany Computer aided product development Additive Manufacturing applications Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

04 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Additive Manufacturing/3D Printing Additive Manufacturing/3D Printing: ⊲ Creates physical objects from digital models ⊲ Layer-wise addition of material ⊲ Variety of material (e.g., plastics, metals, ceramics) ⊲ Summarises technologies: � Electron Beam Melting (EBM) � Fused Deposition Modeling (FDM, also Fused Filament Fabrication FFF) � Laminated Object Manufacturing (LOM) � Stereolitography (SLA) � Selective Laser Sintering/Melting (SLS/SLM) � 3D Printing (3DP) ⊲ Uses STL (STereoLithography) files, tesselated object description Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

05 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Motivation ⊲ Lacking quality in results ⊲ Errors and failures during fabrication ⊲ Material and component wastage ⊲ Lacking quality control Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

06 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Lacking Quality in Results ⊲ Objects detach ← vibration ← collision ⊲ Material cut-off ⊲ approx. 22 mm/s movement speed Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

07 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Proposed System ⊲ Externalised intelligence (service) ⊲ Control by service via adaptor ⊲ Direct machine-code streaming Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

08 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work General Basics – CPS ⊲ Cyber-physical system = real world object + digital representation → Influencing object via actuator(s) ← Acquiring information via sensors Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

09 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Benefits ⊲ Extensible → new 3D printer ⊲ „Profiles“ (fast, expert user, ...) ⊲ Shared data (collaboration) ⊲ No modification of hard- or software ⊲ Re-manufacturing, non-planar surface ⊲ Adaptive slicing/manufacturing Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

10 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Drawbacks ⊲ Requires uninterupted Internet connectivity ⊲ Low latency ⊲ Fast roundtrip (within one instruction: 0.14s) ⊲ False positive (robustness) Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

11 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Closed-Loop Control ⊲ Positional/state data from 3D printer ⊲ Accurate position data: expensive, requires modification ⊲ Sensor data: requires analysis and statistical models Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

12 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Components ⊲ 3D printer (requires controllable interface) ⊲ Service (storage, processing, management) ⊲ Adaptor (mediator between service and 3D printer) ⊲ Sensor nodes ⊲ User (distinction in proficiency) Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

13 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges 3D Printing Model ⊲ CAD model, STL model, machine code - vs - ⊲ (Expected) sensor reading ← User input (quality rating) ← Machine learning Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

14 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Example Sensor Data 800 600 400 ADXL345 Accel. Sensor on Printhead 200 18:15:47.620317 18:22:26.782612 0 -200 -400 -600 18:08:00.000 18:10:00.000 18:12:00.000 18:14:00.000 18:16:00.000 18:18:00.000 18:20:00.000 18:22:00.000 18:24:00.000 18:26:00.000 18:28:00.000 tic Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

15 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Processing Flow Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

16 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Benefits Challenges Challenges ⊲ Latency in communication ⊲ Auto-connection (user-friendly) ⊲ Loss of control for customer Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

17 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Summary Contact Future Work ⊲ Model creation (requires more data) ⊲ Testing and evaluation ⊲ Predictive maintenance Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

18 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Summary Contact Summary � Outline of work-in-progress of 3D printer control with REST � Motivation � Architecture based on REST API � Advantages and disadvantages Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller

19 / 19 2017-02-13 Baumann and Roller Closed-Loop Control of 3D Printers via Webservices Motivation and Goals Benefits and Drawbacks Future Work Summary Contact Contact � University of Stuttgart � Universitaetsstr. 38, 70569 Stuttgart, Germany � Felix Baumann, baumann@informatik.uni-stuttgart.de � Q & A Institut für Rechnergestützte Ingenieursysteme Universität Stuttgart Prof. Dr. Dieter Roller