Title:
Influence of Toolpath Design on the Structural Performance of 3D Printed Concrete Gyroid Walls
Author(s):
Caleb Lunsford
Publication:
Web Session
Volume:
ws_S24_CalebLunsford.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/24/2024
Abstract:
A gyroid is a triply periodic minimal surface that efficiently distributes stress under compression loading in all orientations. Using a 2-component system with an in-house developed flowable mixture and with injection of accelerator at the nozzle, we have previously demonstrated our ability to print these complex geometries. In this work, we have evaluated the influence of open versus closed tool path designs. In an open tool path design, the nozzle's printing direction reverses with every layer thus changing the interlayer time gap along the length of the layer. On the other hand, a closed toolpath results in a similar interlayer time gap but leads to an increase in the total amount of material needed to close the tool path. We will present the data resulting from the testing and analysis of walls with two different toolpaths.