Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Open-Bottom Low-Voltage Splice Hood
A one-piece rain hood for wire-nutted 18–22 AWG low-voltage splices, such as sprinkler valve wire, landscape lighting or doorbell cable. It mounts open end down so water drains out instead of collecting. The cavity is 60 x 38 x 70 mm, with two ribs inside that have zip-tie slots for strain-relieving the bundle and a rear notch for a cable running along the wall. Overall it's 90 x 44 x 72 mm and fixes with four #8 wood screws through 5 mm ear holes.
1/2, 3/4, 1 in Knockout Blank Plug Set
A set of three snap-in blanking plugs for unused electrical knockouts: 1/2 in trade (22.2 mm hole), 3/4 in trade (27.8 mm) and 1 in trade (34.5 mm). They print on one snap-off sprue about 121 mm long. Slotted spring fingers with a 45° barb push in from the front, grip steel box and panel walls about 1–2 mm thick, and leave a flush flange 4 mm wider than the hole on every side.
Universal Smoke Detector Box Adapter Plate
A 130 mm ceiling adapter ring, 6 mm thick, for fitting a new smoke or CO detector to an old electrical box. The counterbored box slots sit on a diameter and run from 66 to 94 mm hole spacing, which covers 3 in round, single-gang (83 mm) and 4 in octagon (89 mm) boxes. Four radial M4 slots for the detector have a captive-nut track underneath and reach 64–116 mm screw spacing, and a 50 mm hole in the middle lets the wiring through.