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.*
Glass Shade Fitter Reducer Ring
Reducer ring that lets a 1-5/8 in neck glass shade (41.3 mm) hang in a vanity bar or fan light kit built for 2-1/4 in fitter shades (57.2 mm). The 56.8 mm sleeve drops up into the fixture's holder and is pinned by its existing thumbscrews; the 66 mm lip band below it has three radial 3.4 mm self-tap holes for M4 x 12 set screws that grip the smaller shade neck in the 42.5 mm bore. 28 mm tall; change BORE and SLEEVE_OD in the script for a 3-1/4 in to 2-1/4 in version.
Vanity Light Slotted Crossbar Adapter
A 120 x 22 x 7 mm crossbar that lets a new vanity or sconce light bar fit an old electrical box. The 4.5 mm end slots reach box-ear screws spaced anywhere from 64 to 96 mm apart, which covers both the 2-3/4 in and 3-1/2 in patterns. The 52 mm centre slot has an M4 hex-nut track on the back, so the fixture's two screws can land at any spacing from 0 to 52 mm and you don't have to drill into the drywall.