Abstract
| Original language | English |
|---|---|
| Title of host publication | High Tech Concrete: where technology and engineering meet |
| Subtitle of host publication | Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12–14, 2017 |
| Editors | D.A. Hordijk, M. Luković |
| Place of Publication | Cham |
| Publisher | Springer |
| Pages | 2474-2483 |
| ISBN (Electronic) | 978-3-319-59471-2 |
| ISBN (Print) | 978-3-319-59470-5 |
| DOIs | |
| Publication status | Published - 2017 |
| Event | 2017 fib Symposium, June 12–14, 2017, Maastricht, The Netherlands - Maastricht, Netherlands Duration: 12 Jun 2017 → 14 Jun 2017 https://fibsymposium2017.com/ |
Conference
| Conference | 2017 fib Symposium, June 12–14, 2017, Maastricht, The Netherlands |
|---|---|
| Country | Netherlands |
| City | Maastricht |
| Period | 12/06/17 → 14/06/17 |
| Internet address |
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A real-time height measurement and feedback system for 3D concrete printing. / Wolfs, R.J.M.; Bos, F.P.; van Strien, E.C.F.; Salet, T.A.M.
High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12–14, 2017. ed. / D.A. Hordijk; M. Luković. Cham : Springer, 2017. p. 2474-2483.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
TY - GEN
T1 - A real-time height measurement and feedback system for 3D concrete printing
AU - Wolfs, R.J.M.
AU - Bos, F.P.
AU - van Strien, E.C.F.
AU - Salet, T.A.M.
PY - 2017
Y1 - 2017
N2 - Recent years have seen a rapid growth of additive manufacturing methods for concrete construction. Generally, these methods are based on a linear sequence of design → print path definition → actual printer actions in a print environment. However, printing experiments show that a large number of parameters influence the printing process. Not all of these can be predicted accurate on forehand. Therefore, a method is introduced that allows real-time adjustment of the print process. As a proof-of-concept, a measurement system for the nozzle height has been developed and tested. Because this variable relates to machine properties, environmental conditions as well as material behaviour, it is a crucial parameter to control. In two case study prints, the effectiveness of the device was shown. In one study, the printer could follow a range of irregular curves in the print bed, whereas only a simple flat rectangular print path had been programmed. In the other, it was shown the print path could be adjusted to vertical deformation of the previous layers of printed filament in a tubular object of several dozen layers. Thus, premature failure through irregular loading of the object during printing was avoided. Further expansion of the use of real-time measurement devices may be anticipated in the future. Besides more advanced geometrical measuring, chemical and physical conditions such as concrete temperature (both before and after deposition), surface wetness, and environment humidity, can be recorded. Combined with the machine action log, this should result in a detailed set of as-built data of the printed object, allowing e.g. for a geometrical clash control with the design as well as other quality controls.
AB - Recent years have seen a rapid growth of additive manufacturing methods for concrete construction. Generally, these methods are based on a linear sequence of design → print path definition → actual printer actions in a print environment. However, printing experiments show that a large number of parameters influence the printing process. Not all of these can be predicted accurate on forehand. Therefore, a method is introduced that allows real-time adjustment of the print process. As a proof-of-concept, a measurement system for the nozzle height has been developed and tested. Because this variable relates to machine properties, environmental conditions as well as material behaviour, it is a crucial parameter to control. In two case study prints, the effectiveness of the device was shown. In one study, the printer could follow a range of irregular curves in the print bed, whereas only a simple flat rectangular print path had been programmed. In the other, it was shown the print path could be adjusted to vertical deformation of the previous layers of printed filament in a tubular object of several dozen layers. Thus, premature failure through irregular loading of the object during printing was avoided. Further expansion of the use of real-time measurement devices may be anticipated in the future. Besides more advanced geometrical measuring, chemical and physical conditions such as concrete temperature (both before and after deposition), surface wetness, and environment humidity, can be recorded. Combined with the machine action log, this should result in a detailed set of as-built data of the printed object, allowing e.g. for a geometrical clash control with the design as well as other quality controls.
U2 - 10.1007/978-3-319-59471-2_282
DO - 10.1007/978-3-319-59471-2_282
M3 - Conference contribution
SN - 978-3-319-59470-5
SP - 2474
EP - 2483
BT - High Tech Concrete: where technology and engineering meet
A2 - Hordijk, D.A.
A2 - Luković, M.
PB - Springer
CY - Cham
ER -