Dust collection blast gate. 3 inch PVC to 2 1/2 inch spiral hose

Blast gate to go from 3 inch PVC fitting to 2 1/2 inch spiral hose.
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updated October 10, 2023

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Adding dust collection to my woodworking shop using 4 inch PVC.  All my tools have ports for 2 ½ inch hose so I decided to opt to use 4 inch to 3 inch long sweep T-connectors from the main trunk of 4 inch PVC.  

These blast gates fit snugly into the 3 inch collar and the hose end is threaded to fit standard 2 ½ inch hose.  

I printed all the parts in PETG at 0.20mm layer height 4 walls, top and bottom, except the spacers. I printed the spacers at 0.16 mm layer height so they would actually print at 4.04 mm thick, giving a slight bit of relief so the blast gate can slide freely.

I installed 4 M3 brass insert and used 4 M3 x 12 mm bolts to assemble.  

The spiral connection is actually remixed from BootStraps 2 1/2 Hose End for Vacuum - 61mm https://www.printables.com/model/395967-2-12-hose-end-for-vacuum-61mm and is designed to work with this hose from Amazon. https://smile.amazon.com/gp/product/B001JBANX8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

The brass inserts can be found here: https://www.amazon.com/dp/B09TNK8GD6?psc=1&ref=ppx_yo2ov_dt_b_product_details and the M3 bolts here: https://www.amazon.com/dp/B09TNK8GD6?psc=1&ref=ppx_yo2ov_dt_b_product_details and are left over from building the Vision enclosure for my Bambu Labs P1P.

I've been really happy with using the SUNLU PETG for most of my projects. https://www.amazon.com/stores/page/F6BC391D-C19F-4AD3-B5E3-D51EF73282A0?ingress=0&visitId=60d58284-9be2-4d70-883e-187fbbe4cfdd&ref_=ast_bln

 

 

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