These 3D-printed holders are designed to mount posters or prints with a sleek, minimal aesthetic — perfect for modular wall art or multi-panel displays.

Each corner and connector piece is individually mounted to the wall using screws or strong adhesive.
Once installed, they hold a “sandwich” of materials such as (in my case):

• 3 mm MDF backing board
• Poster or print
• 1 mm acrylic cover plate

This setup creates a flat, frameless appearance that protects the poster while keeping it easy to remove or rearrange.
All holder parts are designed to handle a total material thickness of up to 5 mm.

✅ Features:

• Fits poster or plate setups up to 5 mm thick
• Clean, frameless wall-mount design
• Modular: works with single posters or tiled multi-panel artwork
• Easy to print and install (no supports required)
• Compatible with screws, nails, or adhesive mounting
• Ideal for posters, acrylic plates, photo boards, or decorative wall tiles

⚙ Recommended Print Settings

Auto arranging these models for a correct print orientation will put them in the orientation that they should be printed in. You need to print 1 middle part, 4 corners and 4 edges in order to wall mount 4 posters.

• Layer height: 0.2 mm
• Infill: 100 % (for durability)
• Supports: Not required
• Material: PLA or PETG recommended
• Wall attachment: small screws or mounting tape