Remixed from the "HSW Angled Drill Holder" by kstuken on Printables.com - https://www.printables.com/model/498594. All I did was move the holes to accommodate Mutliboard snaps. I only remixed the wider of the two mounts from the original. The first version requires M3 screws about 14mm-16mm long and M3 Hexnuts required for assembly, as well as multiboard snap, of course. On 2024-02-19 I added a version which should work with Small-thread T-bolts as suggested by spikeon in the comments.