November 20, 2025
Description
This is a 3 Way Corner for Schedule 40 PVC pipe. It has a friction-fit socket that maintains a strong hold on the pipe under normal use. It may also be glued for a permanent fit that will hold up to just about anything. It is designed with a corner gusset that helps support the elbow if any loads are applied to its members.
This connector is part of the Mattformed Structural PVC Framework, my complete collection of 3D-printable parts for building with PVC pipe. All parts are designed to be strong, easy to assembly, and easy to print with minimal supports. This collection started with the idea of building a super cool fort for my 4 year old son.
This model page includes models for all common Schedule 40 (Sch 40) pipe sizes. Each size is separated into it's own print profile with a single build plate.
Please check out the assembly guide and dimensional drawings to help assist with your design! I've included a snippet of the dimensional drawing below:
Almost all materials will work. The parts in this collection were designed and tested for use with PETG, which provides good flexibility and weather/water resistance. Different applications may call for different materials, and you can choose just about whatever you'd like for this system.
Find my growing collection of PVC pipe connectors here: https://makerworld.com/en/collections/15461894-complete-pvc-connector-library
See some of the connectors I have planned:
1. Basic Connectors
2. Planar (2D) Connectors
3. Spatial (3D) Connectors
4. Angled & Adjustable Connectors
5. Mounting & Accessory Connectors
6. Adapters & Reducers
Let me know if you have any more requests/suggestions!
Why are the sockets not circular?
I've chosen to prioritize printing without supports. In order to print dimensionally (and aesthetically) sound circles horizontally, I've used a 30 degree angle on the upper and lower sections of the circle. This doesn't affect the functionality whatsoever, and gives us a much better and dimensionally accurate socket to fit our pipes!
I really appreciate the time you've taken to read this far! I love making detailed designs and working with people to bring their ideas alive. If you'd like to support my work, leave me a comment and a photo of your print! I love seeing how these prints come to life. If you want to help me buy some filament for future projects, feel free to give me a boost!
Boost MeThanks so much for your support!Not for use with liquids. These connectors are for structural projects only.
License:
Standard Digital File License