Ov
O.S. van de Ven
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A new approach to print head movement
Proof of concept for linear motor positioning in an Ultimaker 3D printer
Master thesis
(2019)
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Aaron Alkemade, Oscar van de Ven, Jo Spronck, Niranjan Saikumar, John van den Dobbelsteen
To push the performance of the next generation Ultimaker 3D printers further, a new positioning system is required to improve the printing speed, print accuracy and print repeatability. The expectation is that a linear motor positioning system will perform significantly better than a conventional belt driven system. For this reason, the aim of this MSc thesis is to demonstrate the feasibility of a low-cost linear motor positioning system for use in a 3D printer.
A single axis experimental set-up is realized to evaluate the performance of the positioning system using different linear motors, sensors, guides and controllers. Using a single sided ironless linear motor, Hall effect encoder, linear ball bearing and an open-source controller, a positioning system is realized that can reach a speed of 3.7 m/s, an accuracy of 14 µm and a repeatability of 3 µm. A 2DOF system using these components can be realized with an overall cost of € 854. ...
A single axis experimental set-up is realized to evaluate the performance of the positioning system using different linear motors, sensors, guides and controllers. Using a single sided ironless linear motor, Hall effect encoder, linear ball bearing and an open-source controller, a positioning system is realized that can reach a speed of 3.7 m/s, an accuracy of 14 µm and a repeatability of 3 µm. A 2DOF system using these components can be realized with an overall cost of € 854. ...
To push the performance of the next generation Ultimaker 3D printers further, a new positioning system is required to improve the printing speed, print accuracy and print repeatability. The expectation is that a linear motor positioning system will perform significantly better than a conventional belt driven system. For this reason, the aim of this MSc thesis is to demonstrate the feasibility of a low-cost linear motor positioning system for use in a 3D printer.
A single axis experimental set-up is realized to evaluate the performance of the positioning system using different linear motors, sensors, guides and controllers. Using a single sided ironless linear motor, Hall effect encoder, linear ball bearing and an open-source controller, a positioning system is realized that can reach a speed of 3.7 m/s, an accuracy of 14 µm and a repeatability of 3 µm. A 2DOF system using these components can be realized with an overall cost of € 854.
A single axis experimental set-up is realized to evaluate the performance of the positioning system using different linear motors, sensors, guides and controllers. Using a single sided ironless linear motor, Hall effect encoder, linear ball bearing and an open-source controller, a positioning system is realized that can reach a speed of 3.7 m/s, an accuracy of 14 µm and a repeatability of 3 µm. A 2DOF system using these components can be realized with an overall cost of € 854.