Publication detail

Method of Multiaxis Three-Dimensional Printing with Intralayer Height Variation for Stairstep Effect Compensation

KRČMA, M. PALOUŠEK, D. KOUTNÝ, D. ŠKAROUPKA, D.

Original Title

Method of Multiaxis Three-Dimensional Printing with Intralayer Height Variation for Stairstep Effect Compensation

Type

journal article in Web of Science

Language

English

Original Abstract

The recent developments in multiaxis three-dimensional (3D) printing have got a large potential for expanding the capability of material extrusion based methods. Especially curved and nonplanar methods can improve buildability, surface quality, and mechanical performance. However, the challenges that arise from using them complicate their deployment. In this article, we propose a hybrid planar method, based on varying the layer height and deposition speed in combination with tool reorientation, that allows us to get a lot of the same benefits that come from using nonplanar layers. The goal of the method is to keep the deposition constant regardless of the overhang angle. This is achieved by simultaneous control of layer height, deposition speed, and tool orientation. The method is the most beneficial for large-scale, single-wall 3D printing, such as clay, concrete, and other composites. The main restriction of the method depends on the minimum/maximum ratio between the nozzle diameter and layer height. A description of the method is provided, and sample objects are evaluated either as trajectories or as test prints. The claims are confirmed by microscopy measurement of the contact patch width. The method as presented allows printing of overhangs up to 82.34 degrees, can be applied to complex geometry without difficulties, and further possibilities of limit expansion are discussed. The contact patch width decreases only by 20% at the 80 degrees of overhang.

Keywords

multiaxis; 3D printing method; variable layer height; intralayer height variation; process planning

Authors

KRČMA, M.; PALOUŠEK, D.; KOUTNÝ, D.; ŠKAROUPKA, D.

Released

20. 9. 2022

Publisher

MARY ANN LIEBERT, INC

Location

NEW ROCHELLE

ISBN

2329-7670

Periodical

3D Printing and Additive Manufacturing

Year of study

9

Number

6

State

United States of America

Pages count

12

URL

https://www.liebertpub.com/doi/10.1089/3dp.2022.0097

BibTex

@article{BUT180530,
  author="Martin {Krčma} and David {Paloušek} and Daniel {Koutný} and David {Škaroupka} and Johannes {Braumann}",
  title="Method of Multiaxis Three-Dimensional Printing with Intralayer Height Variation for Stairstep Effect Compensation",
  journal="3D Printing and Additive Manufacturing",
  year="2022",
  volume="9",
  number="6",
  pages="12",
  doi="10.1089/3dp.2022.0097",
  issn="2329-7670",
  url="https://www.liebertpub.com/doi/10.1089/3dp.2022.0097"
}