Modular No-Sew TPU Crossbody Bag (Flat-Pack Design)
Elevate your 3D-printed fashion with this completely no-sew crossbody bag. Designed to be printed flat and assembled in minutes, this bag is the ultimate fusion of utility and modular design. Whether you are looking for a sleek single-color accessory or a vibrant multi-color masterpiece, this file is optimized for high-end results.
Snapmaker U1: Optimized for multi-color TPU printing. Included project files feature modifiers to help you create stunning color patterns on the flap. Bambu Lab H model (AMS/AMS lite): Compatible with TPU printing setups for multi-material enthusiasts. I'll design and slightly smaller one to fit the 256x256 bed. Any 3D Printer: Can be printed as a stylish single-color piece on any standard machine capable of printing TPU.
Features & Specifications Completely Modular: Since the bag uses hardware instead of permanent rivets or stitching, you can swap the flap, strap, or base at any time to match your outfit. Dimensions: Approximately 7.5" W x 5" H when folded. No-Sew Construction: Simply fold the sides and "braid" the strap through the integrated slots—no needle and thread required!
Hardware & Assembly To complete the professional look, you will need the following: Twist Lock: I used these Chicago Screws: I used these (The holes are also compatible with rivets if you prefer a permanent bond).
What’s Included Main Bag Base, Flap, and Strap STLs. Project files with pre-set modifiers. Standalone modifier files for flap customization.
1/17/26 Bambu .3mf file added. It's basically the STLs shrunk to 92.34% and the strap printed at 19mm high. The same hardware all fits. 1/20/26 added images for Bambu prints





























