This is a set of connectors to magnetically attach dust collection hose to tools. This allows you to easily swap one hose between multiple tools without having to adjust hose clamps.

You'll need 16 circular magnets, 10x3mm, for each connector. I just use a two-part epoxy to stick the magnets into the shallow dishes in the face of the connectors. The indentations are sized to accept two magnets each. Be sure to use opposite orientations for the connectors on the tool side vs. the hose side so that they'll snap together. And be careful while testing the connectors before installation, the magnets are quite powerful and they can pinch a finger when snapping together.

Connect the dust collection hose to the hose-side connector by sliding it over the base and tightening a hose clamp over it. The tool-side connectors are designed with a split base that gives you just a little bit of flex. It should slide snugly over the tool's dust port where you can tighten it in position with a hose clamp.

Once everything is installed, the connectors should snap firmly into place. The tool side connectors have a ridge that meshes with an indentation on the hose connectors to properly align them and provide smooth airflow.

Notes on Sizing

The system is designed around a nominal 4" dust collection hose with an expected actual outer diameter of 100mm for the tool dust ports. Yours may vary slightly in practice, and if so you can either use step-up/down adapters or adjust the size of the base connectors (more on this later).

I provide the following pre-generated STL files:

hose_100mm.stl: This is the base connector for the hose. It should comfortably fit 4" flex hose.
tool_100mm.stl: This is the base connector for tools. I based the size on the SawStop PCS.
tool_103mm.stl: This is a step-up adapter I made for a bandsaw with a slightly larger dust port.
tool_122mm.stl: This is a step-up adapter I made to fit a Hammer jointer/planer with a dust port of ~5" nominal size.
tool_64mm.stl: This is a step-down adapter for tools with nominal 2.5" dust ports.

Magnetic Dust Collection Connectors

0.2mm layer, 2 walls, 15% infill

0.2mm layer, 3 walls, 15% infill

0.2mm layer, 3 walls, 15% infill