Hybrid Vented/Solid Betweener for JC's Creality K1 Lid Riser

The Hybrid Betweener Tired of having to swap betweeners depending on the material you are printing and its ventilation needs? And where do I keep the spare betweeners when they are not in use? This project aims to provide the only betweeners you'll ever need. These betweeners print in two parts – an outer shell that slots into the riser corner pieces, and an inner core that slots into the shell. The result is a betweener with ventilation holes that can be opened/closed easily by sliding a toggle. Printing: I printed these in PLA, but I expect other materials would also work fine. Each betweener is an assembly of two parts: Outer Shell: Print orientation: Because of its inside slot, the “shell” part must be printed in the vertical orientation. Supports: this part printed just fine without supports, though I did opt to add a brim to ensure good build plate adhesion due to its small footprint. Infill: I printed these at 100% infill, though you could probably reduce that without compromising the part. Wall Loops: 3 Inner Core: Print Orientation: The core should be printed laid flat on the plate, toggle fin facing upwards Supports: No supports needed Infill: I recommend printing these at 100% infill. Wall Loops: 3 Assembly: Pretty self explanatory. Just slot the core into the shell from the top, lining up the core's toggle fin with its cutout in the shell.