The Rheoprinter: online learning of printability conditions


In this project we aim to build a system that "learns" optimum printability conditions on the fly for materials that are primarily utilized in additive manufacturing (AM). The micro-extrusion system measures printability using computer vision and searches for optimum machine parameters using optimization algorithms. Both tasks are happening real-time allowing the system to be both a measurement and a printing device in parallel. With this strategy, we introduce "printability" as an emergent material property that can be efficiently measured and not derived through time-consuming and trial & error parametric studies following classical rheological measurements. Such systems could potentially accelerate the development of novel materials for a wide range of applications.

Click here for on-going progress!


x-axis

Mini Linear Axes

CAD model

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on-going work| img updated 2018/08/28
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The Rheoprinter v1

CAD model

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on-going work| img updated 2018/05/27
rheoprinter-front

Rheoprinter v1 - Syringe Pump

showing a leadscrew-driven syringe pump along with a syringe loaded with a soft biopolymer composite

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on-going work| img updated 2018/05/27
rheoprinter-front

Rheoprinter v2 - Computer Vision

showing the usb microscope camera mounted below the printbed

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on-going work| img updated 2018/05/27
rheoprinter-front

Rheoprinter v1 - Front View

showing the syringe pump along with a syringe loaded with a soft biopolymer composite

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on-going work| img updated 2018/05/27
rheoprinter-front

Rheoprinter v1 - Top View

showing the syringe pump along with a syringe loaded with a soft biopolymer composite

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on-going work| img updated 2018/05/27
x-axis-better-stage better-stage

Rheoprinter v2 - Better Stage

showing the syringe pump along with a syringe loaded with a soft biopolymer composite

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on-going work| img updated 2018/05/27
rheoprinter-front

The Rheoprinter v2

showing the syringe pump along with a syringe loaded with a soft biopolymer composite

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on-going work| img updated 2018/05/27
async-motors

Async Motor Tuning

Asyncrhronous motor tuning using software interrupts triggered through the serial port

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on-going work| img updated 2018/05/27