You can now print your own (if you have a printer)
https://www.thingiverse.com/thing:4256474
The designer says: "Since the block piers have individual differences, I prepared models with different inner dimensions."
The download has files for three caps with slightly different geometry. I suppose you have to experiment to see which work best with your block piers, as explained in the video.
![[Image: image.png]](https://i.postimg.cc/g0P7VzVB/image.png)
https://www.thingiverse.com/thing:4256474
The designer says: "Since the block piers have individual differences, I prepared models with different inner dimensions."
The download has files for three caps with slightly different geometry. I suppose you have to experiment to see which work best with your block piers, as explained in the video.
![[-]](https://www.blueplastictracks.org/images/collapse.png)