This modular mountable build plate holder keeps your spare plates organized and off your workspace. Designed for under-mounting but works equally well for side-mounting, it uses 6 #8 screws (3 per side) for secure installation.

The holder fits 220mm build plates (like those used on Creality Ender 3 S1 printers), but its two-piece design allows for width adjustment. This flexibility means it can accommodate larger plates if you don’t mind a slight overhang. It features slots for 4 build plates, keeping them secure and easily accessible. The open front allows plates to slot in smoothly, while the closed back ensures they won’t slide through or fall out.

Print Settings:

• Nozzle: 0.4mm
• Layer Height: 0.2mm
• Infill: 20% (strong near screw mounts, can lower if tightened gently)
• Orientation: Print with the slots facing down as the STL files are oriented.
• Supports: None required.
• Brim/Raft: Added mouse ears to the open ends and middle to prevent warping. Trim and file post-processing.

If you need a custom size and aren’t familiar with CAD, reach out, and I’ll help adjust it for your build plate dimensions!

Upcoming Version: I will be designing and posting a separate version where each side will be two smaller but seperate smaker sections, instead of one long one, making it fully adjustable to fit any plate size. Link will be added below shortly.