![](http://www.ecns.cn/hd/2023/05/09/4e71e8e50d06493fbabce5f8291f0e8c.jpg)
A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)
Once completed at the end of July, the building will house computer servers in Heidelberg.
![](http://www.ecns.cn/hd/2023/05/09/eb044d9bd0a9412e9e7de6aabf5b8a07.jpg)
A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)
![](http://www.ecns.cn/hd/2023/05/09/46551a5da65240bfa304aab7625f7531.jpg)
A robot arm with the head of a 3D printer piles concrete layers to build the "Europe's largest 3D-printed building" in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)
![](http://www.ecns.cn/hd/2023/05/09/ab2f40baaaf14a17a4fb026ea264b97e.jpg)
Aerial view of the construction site of the Europe's largest 3D printed building in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)
![](http://www.ecns.cn/hd/2023/05/09/3ab664a4109f4c3288d0e9061bd509f2.jpg)
Aerial view of the construction site of the Europe's largest 3D printed building in Heidelberg, Germany, May 5, 2023. (Photo/Agencies)