I wasn't totally happy with MihaiDesigns' AMS stacking stand design so I remixed it to be able to open the bottom AMS in place.
Compatibility Fits the 3 different versions of the AMS units. However, the fit for the older version (3 large gaps on the sides instead of 4) is slightly offset and the bottom box will protrude out a bit.
Materials
Printing
4 files need to be printed ( 2 files per side) and they are pre-oriented, Supports are required only for the top connector.
I uploaded my 3mf file with settings with support.
I prefer PLA-CF, 2 perimeters, 12% cubic infill, and a good amount of brim.
Each side panel akes close to 12 hours to print with the generic BL PLA-CF profile. I also created a dowel bit that is optional to print as you can use any kind of pin. This was designed to block the AMS lid when open but you shouldn't print it as I found out thanks to Nic Wilson that the dowel were not strong enough and snapped. So to block the open lid in position I recommend using Ikea dowels ref 118331 (I had a ton in stock)
Assembly
No glue necessary to assemble. Just slide the top part into the bottom one and you're done. Cut the metal rod to 404mm long, then insert it in both printed parts. Fit the AMS unit at the bottom. Screw in the two grub screws at the back alongside the rod to lock it in place.
Picture courtesy of Nic Wilson https://www.facebook.com/groups/485185272196044/
The author remixed this model.
3D printed AMS stacking stand allowing to operate the bottom AMS fully open