A do-it-yourself approach for developing a magnetic field mapping setup using a 3D printer

Abstract

Mapping magnetic fields is an important task for characterizing permanent magnets, their systems and the various devices that use magnets. However, commercial devices for this task are quite expensive and difficult to acquire. In this study, a design process for an automatized magnetic mapping setup utilizing a 3D printer was proposed through a do-it-yourself approach from common parts found in a laboratory. We used a 3D printer for two purposes: to create instrument parts to fix the Hall probe instead of the printer extruder, and use the same 3D printer as the position controller of the magnetic probe. We describe the process of device assembly, including hardware and software aspects. Several tests of assembled setup were performed using samples with different magnetic texture dimensions from several centimeters (graduated permanent magnet) to tens of micrometers (flexible magnet with planar Halbach structure and a 5¼-inch floppy disk). The spatial resolution was in the sub-millimeter range. The parameters of the mapping, such as the number of points and data acquisition time, were optimized for such samples.

Study on the noise reduction mechanism and application of the noise simulation analysis of care robots

“…Subsequent simulation analyses are conducted to compare noise sources, providing reference for equipment design modifications. Moreover, due to the limited space for noise reduction, custom-made acoustic materials are developed using 3D printing technology [3] to achieve the goal of noise absorption or insulation. The key novelty of this study lies in the integration of noise and vibration with simulation analysis techniques applied to robot noise reduction implementation.…”