Snap connector

thingiverse

If you need to fairly permanently connect 2 separate prints with flat abutting surfaces here is a snap connector that may be of use. I use it to connect an auxiliary breakout box to a Pi case but it is a generally useful way to connect prints with relatively thin walls. (I use heftier pegs to connect more solid things. Since this is of no value unless incorporated in a larger design I have included the 123dx file. Print Settings Notes: I have used this with ABS. PLA might be too stiff. PETG would probably also be good.