Dust Collector Blast Gate (4-inch)

cults3d

This shutoff/blast gate is designed to fit inside 4" flexible tubing for dust collectors. You'll need to secure the tubing using a band clamp to the outer portion of the circular extrusion. There are four main pieces - (1) the blast gate, (2) the spacer/middle section, and the (3) left and (4) right side pieces (these last two have the mating pieces for the 4-inch tubing). Some may choose to call them "top" and "bottom", rather than "left" and "right", but it depends on your setup and how you mount it. For my buddy, it was mounted in horizontally, rather than vertically. The gate is designed to be assembled with 4x #8 screws, 5/8" long, each with a #8 nut, which will be captured on the back side of the unit (on the "Right" side piece). In the photos, I was using an odd-sized screw/nut combo that was a bit longer than the prescribed screws (hey, it's what I had on hand!). An official #8 machine screw that's the right length should fit perfectly. :) NOTE: I designed the Fusion360 model in such a way as to make it easily scale down from fitting a a 4" tube to smaller one tube. I believe 2.5" is the other common size for dust collector tubing (?). If you are interested in me uploading a different size of tubing, please let me know! Drop a comment or a direct message to me. I'd love to hear from you! Please also post any makes! I'd love to see everyone's different setups!