4" Blast Gate to 2-1/2" Hose

Allows you to go directly from a 4 inch blast gate in your dust collection system to a 2-1/2 inch hose in one step.

I've added a small groove around the 2-1/2 inch end to help hold the flex hose in place under a hose clamp. No more hose slipping off.

To strengthen the part for use in a workshop environment, I used ABS and then applied acetone with a brush. If using PLA make sure the layers are bonding well as it is being formed.

https://youtu.be/PkN-zmxHiRk