Volumetric helical additive manufacturing  

作　　者：Antoine Boniface Florian Mattre Jorge Madrid-Wolff Christophe Moser 

机构地区：[1]Laboratory of Applied Photonics Devices,School of Engineering,Ecole Polytechnique Fédérale de Lausanne,CH-1015 Lausanne,Switzerland

出　　处：《Light(Advanced Manufacturing)》2023年第2期48-56,共9页光（先进制造）（英文）

基　　金：the Swiss National Science Foundation under project number 196971-“Light based Volumetric printing in scattering resins”European Union’s Horizon 2020 research and innovation programme under grant agreement No 964497;the free or open-source tools(and their contributors)which were used in this work,including Tinkercad.com,FreeCADweb.org,Inkscape.org,Python.org,PyTorch.org,and Thingiverse.com.

摘　　要：3D printing has revolutionized the manufacturing of volumetric components and structures for various fields.Thanks to the advent of photocurable resins,several fully volumetric light-based techniques have been recently developed to push further the current limitations of 3D printing.Although fast,this new generation of printers cannot fabricate objects whose typical size exceeds the centimeter without severely affecting the final resolution.Based on tomographic volumetric additive manufacturing,we propose a method for volumetric helical additive manufacturing(VHAM)multi-cm scale structures without magnifying the projected patterns.It consists of illuminating the photoresist while the latter follows a helical motion.This movement allows to increase the printable object’s height.Additionally,we off-center the modulator used for projecting the light patterns to double the object’s lateral size.We demonstrate experimentally the interest of using these two tricks for printing larger objects(up to 3 cm×3 cm×5 cm)with fine details(650μm)and short print time(<10 min).

关 键 词：Volumetric additive manufacturing PHOTOLITHOGRAPHY Light-based 3D printing TOMOGRAPHY 

分 类 号：O43[机械工程—光学工程]