This 1x5 gridfinity module holds is designed specifically for the 20cm Shahe calipers, found on Aliexpress.

https://www.aliexpress.com/item/1005006338954271.html (versions 5000-200, 5100-200, 5112-200). 

It may work with some other 20cm calipers too, but I haven't tested that yet.

I made 2 versions. One with some extra storage and one for only the caliper. 

Although this model is almost 30cm long, it can be printed with a printer with 24x24cm baseplate. You just have to rotate it 45 degrees.

Based on the Gridfinity System from Zack Freedman: https://thangs.com/designer/ZackFreedman 

#gridfinity