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2.5 in Shop Vac Hose Wye Splitter
A 50° Y-fitting that lets one shop vac serve two tools, for example a table saw and a miter saw. All three ports are tapered friction sockets that take male hose cuffs and tool ports from 57 mm (2-1/4 in) to 60 mm OD. If a cuff is smaller, wrap it with a turn of tape. The splitter is 133 mm wide and 134 mm tall, has a 54 mm flow bore and 2.2 mm walls, and stands on an 80 mm foot ring so it prints upright without supports. It pairs with a 2.5 in blast gate on each branch.
4 in Dust Hose Cam Lever Cuff
One-hand quick clamp for nominal 4 in flexible dust hose and tool ports: a 104 mm ID, 20 mm tall band with a 2.4 mm flexing wall and a print-in-place cam lever that draws the ears ~4 mm together, so it grips hose measuring 100–107 mm OD without a screwdriver. Replaces an expensive large-diameter worm clamp that kinks thin-wall hose; the spiral cam slot detents at the closed position and the lever pivots on a captured 5 mm pin.
Shop Vac Blast Gate 2.5 in
A print-in-place slide blast gate for 2-1/2 in (63.5 mm) shop-vac and dust-collection duct — the gate plate rides in a 45° dovetail channel so nothing needs supports and it can't lift out, and a moulded floor ridge snaps it at the closed position. Body is 133 x 92 x 13.4 mm with a 63.5 mm through bore and four 4.5 mm M4 clearance holes on a 64 x 82 mm rectangle for screwing to a duct flange, backing board or machine port.
Shop Vac 2.5 To 1.25 Adapter
A one-piece dust-extraction adapter that joins a 2-1/2 in (63.5 mm) shop-vac hose to a 1-1/4 in (31.75 mm) power-tool dust port — a 64.0 mm socket with an internal 45° stop shoulder steps down through a tapered cone to a 31.4→30.6 mm friction spigot with a seating flange. 79 mm tall, 78 mm across the three grip ribs, with a 3.4 mm M4 self-tapping screw hole through one rib so the hose can be locked instead of pulling off mid-cut.