Free 3D Printing Tools

Need a part and don't want to spend an hour on a model-sharing site hoping something's close enough — or open a CAD program to make it yourself? Pick a tool, enter your measurements, get a part sized exactly to your job.

01 Generators

Hinged Box Generator

Need a hinged box in your own size and can't find one that fits? Generate one with the hinge built in — no screws, no glue, prints in one piece.

Cap Generator

Need a cap for a handle, tube, or post and don't want to spend hours searching for one that fits? Enter the diameter, get a press-fit cap sized to fit.

Hinge Generator

Need a custom hinge for a project and the ones online are the wrong size? Generate a print-in-place hinge with screw-mounting leaves, sized to fit — no CAD.

Ventilated Funnel Generator

Tired of a funnel glugging and burping when it's plugged into a bottle neck? Generate one with a built-in air-vent channel sized to your bottle, so it pours without air lock.

Sorting Tray Generator

Need a sorting tray for screws, beads, or small parts and can't find one that fits your drawer? Generate one with dividers exactly where you want them — stackable if you need more than one layer.

Lid Generator

Leaving a drink outside and worried about wasps or rain getting in? Generate a lid that rests on top of your cup or glass — measure the opening, print, done.

Card Generator

Need a personalized card, tag, or token and don't want to open a CAD program? Generate a credit-card-sized (ISO/IEC 7810 ID-1) blank with your own engraved text and a matching two-color inlay.

Name Tag Generator

Need a classic 'Hello my name is' badge and don't want to open a CAD program? Generate one with the red band, white Hello, and my name is baked in, plus your own name engraved below it in black — a three-color print.

Button Generator

Lost a button off a shirt or coat and can't find a matching replacement? Generate a classic sew-through button in your own size — 2 or 4 holes, print in one piece.

Name Keychain Generator

Want a name keychain with bold raised lettering, shaped to follow the outline of the word itself? Generate one with a built-in keyring hole — pick a font, print as a two-color piece.

Lace Charm Generator

Want a custom sneaker lace charm or shoelace tag with your own word on it? Generate a flat tag with two lace slots and engraved text — pick a font, print in one piece.

Threaded Jar Generator

Need a small storage jar with a proper double-lead screw-on lid instead of a friction-fit cap? Set your own diameter and height and get a working double-lead thread sized to fit.

Climbing Hold Generator

Want to print your own set of climbing holds? Generate a randomized rock-shaped hold from a seed and a difficulty grade, with an optional keyring hole, arranged in a printable array.

Envelope Generator

Need a small print-in-place envelope for a gift card, cash, or a personal note? Generate one with your own name or message raised on the flap, then fold it closed — no glue needed.

02 Calculators