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Dust Collector Blast Gate (4-inch)

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Creation quality: 5.0/5 (1 vote)
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  • 6.4k views
  • 12 likes
  • 247 downloads
  • 1 comment
  • 1 make
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3D design format
STL Folder details Close
  • Gate Body - 125-mm v1.stl
  • Gate Body 2.5-inch v1.stl
  • Gate Body v10 (Detented).stl
  • Gate Guide Spacer - 125-mm v1.stl
  • Gate Guide Spacer 2.5-inch v1.stl
  • Gate_Guide_Spacer_v9.stl
  • Side Piece (L) - 125-mm v1.stl
  • Side Piece (L) 2.5-inch v1.stl
  • Side Piece (R) - 125-mm v1.stl
  • Side Piece (R) 2.5-inch v1.stl
  • Side_Piece_L_v9.stl
  • Side_Piece_R_v9.stl

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Last update 2022-04-27 at 04:05
Publication date 2022-03-14 at 00:02
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Published to Thingiverse on: 2022-03-13 at 18:47
Design number 663885
spelchek

spelchek

3D printer file info

3D model description

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!

UPDATE: BLAST GATE VERSION INFO
Added Blast Gate v10 - this is an improved design that has two small landings that will bind slightly with the gate spacer and the side piece to detent the gate into the opened and closed positions. This is a significant improvement that allows things to stay put - either closed or open - but will still allow the gate to slide in and out freely. I removed the old version (v9) and replaced it with this one because it's a much better design. If you would still like v9, I can send it to you if you DM me. Thanks, and happy printing! :D

UPDATE: Added 125-mm and 2.5-inch versions upon requests from various users. Happy printing! :)

3D printing settings

Rafts: No

Supports: No

Resolution: 0.2mm

Infill: 15% Gyroid

Filament Used: Duramic 3D PLA+, Red

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