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Pick one of 14 patterns or upload your own SVG or photo and get a printable texture roller: the pattern wraps seamlessly around the cylinder, raised or engraved. Set the diameter, length, axle bore, repeats around and along, spacing, scale, brick stagger and pattern depth. An optional fork handle prints as a separate part — push a dowel through the bore and the roller spins. Prints upright on its end. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/roller

I recently completely revamped my website's design. I rebuilt the design system and modified almost all the code to ensure mobile responsiveness.

Please give it a try and let me know what you think of the experience!

Turn text, an SVG logo or a photo into a printable stamp: a raised relief on a rounded, sharp-cornered or round block, mirrored for a correct imprint, plus a mushroom knob that plugs into a socket in the back and prints as a separate part. Pick from nine fonts and set letter height, padding, block size and relief height. Works for clay, wax or ink. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/stamp

Type a word or upload an SVG and get a printable frame for a faux stained glass suncatcher: the design is cut through as open windows you seal on the back and fill with tinted resin. Letter centers and floating islands are held by thin auto-bridges, and a hanging ring can sit outside the frame or be built into it — one or two, top or sides. Set the size, lead width and thickness; it prints in one color. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/suncatcher

Sundown for Mac is out and running on macOS 14 or later, with a Classic build for macOS 12 and 13. It sits in the menu bar, and once you set a schedule it warms the screen at sunset on its own.

The warmth control is a Kelvin ladder from 6500K down to 500K in 100K steps, so you can pick a soft evening tint or go all the way to deep red. The screenshot above is the scheduling screen where those times are set.

For anyone coming from another tool, the site has a side by side of Sundown and Night Shift, and there is a write up of the research on screen flicker and eye strain that says plainly where the evidence is thin. Sundown is a paid app with a 7-day trial, made by Jack Richards.

Already have a stainless-steel pet bowl? Enter its body and rim diameter and get a printable stand it drops into, with a fit clearance you control. Choose a round, square, pentagon or hexagon base, set the height, add your pet's name, rings, ribs or a twist, and anti-slip feet. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/bowl-stand

Design a dog or cat bowl in the browser: pick a round, square, pentagon or hexagon shape, set the size, wall, floor and rim rounding, then style it — barrel or hourglass profile, facets, horizontal rings, vertical ribs or a twist. Add your pet's name raised around the side or on one face, in one of 9 fonts and its own color, and optional anti-slip feet underneath. No CAD needed.

Try it: https://3dgenapp.com/generators/pet-bowl

Upload one shape — an ice cube, a chocolate, a small figure — and get a grid of identical cavities. Two modes: a rigid tray you pour chocolate, wax, soap or resin straight into, or a box for pouring a silicone mold with multiple cavities. Set columns and rows, the gap between cells, wall and floor thickness, and see a material estimate. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/cast-tray

Upload a hollow vessel and get a printable housing for pouring a silicone mold around it: the vessel prints fused to the base, two wall halves (rectangular or round) lock around it with clips, and a core hanging from a spoked yoke on top forms the hollow of your casting. Set the silicone wall, margin, fit tolerance and core size, and see a silicone estimate before you pour. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/vase-mold