Your Designs.
Their Dimensions.

A parametric Li-ion cell caddy for 18650 and 21700 cells. Part of the battery-cell family — the cradle array shares the cell form-factor convention with the battery holder and media caddy, so a carrier sized here matches their cell pockets. Print a single-row caddy, a dual-row pack carrier, or a single-cell protective sleeve.

The light-stand spigot ("baby pin") — a 5/8" (16 mm) cylindrical stud that drops into the receiver on every photographic light stand, C-stand and grip head. Build a 5/8" spigot to a 1/4-20 thread, a 5/8" spigot to a 3/8-16 thread, or a double-ended spigot for stacking stands and heads.

An idler pulley that presses onto a standard 608 skate bearing (22 mm OD × 8 mm ID × 7 mm) and rides on an M8 shoulder bolt. The bearing carries the load; the printed part is the running surface and flanges — pick a flat-belt idler, a round-groove idler for cord or bungee, or the shoulder washer stack that sandwiches the bearing on the axle.

The ISO 518 camera accessory shoe — the ~18.7 mm rail with rounded-corner flanges that every on-camera light, microphone, monitor and flash slides onto. Build a male shoe foot with a 1/4-20 base, a female shoe socket that an accessory slides into, or a dual-shoe bar carrying two accessories.

Precision angle references for setting saw blades, bevels, miters and fences. A setup block stacks several known-angle wedges into one stepped tool; a protractor gauge fans reference edges from a common vertex; a saw gauge is a single-angle reference block. Angle set and size are selectable.

Rim-mounted hardware for a glass aquarium: a clip that hooks over the tank rim and cradles a filter hose or lily pipe, a feeding ring that corrals floating flake food, and a slim clip for a thin glass lily pipe. Sized by the tube diameter and the tank-rim thickness.

Coral propagation hardware for a reef tank: a mushroom-shaped frag plug whose stem pushes into a rack, a rack that stands a grid of plugs on the sand bed, and a stemless gluing disc for mounting frags straight onto live rock. Sized by the 25 mm disc / 6 mm stem reef-hobby convention.

An L-bracket for the Arca-Swiss 38 mm tripod quick-release standard. An Arca plate that wraps up the camera's left side so the same body drops into any Arca clamp in landscape (base dovetail down) or portrait (wing dovetail out) with no re-levelling. Every clamping face carries the same 38 mm dovetail with ~45° flanks, so it mates every Arca clamp, plate and ball head. Also builds a plain Arca QR plate and a long telephoto-lens foot.

The Arca-Swiss tripod quick-release standard — a 38 mm dovetail with ~45° flanks that most ball heads, plates and L-brackets share. Build an Arca QR plate with a 1/4-20 camera slot, a clamp jaw that grips the 38 mm dovetail, or an L-bracket for instant portrait mounting.

A cross-family bridge between the tripod world (Arca-Swiss 38 mm dovetail) and the action-cam world (GoPro finger clevis). One face is a 38 mm Arca dovetail that drops into any Arca clamp; the other is a GoPro finger bank (2-prong female or 3-prong male) that mates any GoPro accessory. So an Arca tripod head can carry a GoPro chain, or a GoPro cage can bolt to an Arca plate.

A positioning aid that holds parts in a repeatable location during assembly, welding, gluing, or drilling. A base plate carries locating pins in a selectable pattern, optional raised stops forming a corner reference, or a V-groove for round stock, plus mounting holes to bolt it down.

A grip aid that slips over a utensil, pen, or tool handle to enlarge it for users with limited hand dexterity. Choose a plain cylindrical grip, a mid-swell bulb for a relaxed power grasp, or add a strap slot. Sized to the handle it fits over.

The dome studs set into the base of a handbag or briefcase so the bag stands off the floor and the leather does not scuff. A foot is a shallow dome on a flange with a boss underneath that passes through a punched hole; a backing washer inside the bag spreads the load so the foot does not pull through. Two boss styles: a cosmetically threaded screw post, or two splayable prongs folded over the washer in the traditional way. This is the rigid hard good the Fashion Cabinet `bag-feet` notion places and bridges to here for its geometry.

A slide-on C-channel clip that reseals an open bag by trapping the folded edge, with an optional pour nozzle so you can dispense from the sealed corner. Sized to bag width; a wide variant covers cereal and freezer bags.

A ball-and-socket joint for adjustable arms — phone, mic, camera, and light mounts. A ball stud snaps into a socket cup whose opening is smaller than the ball, so friction holds any angle. Parts chain into arms of any length.

Cell holders that keep a set of cells captive in a printed carrier for a battery pack, with open contact slots at each end so bus strips or spring contacts reach the terminals. Pick the cell (18650, 21700, AA, AAA) and the bores land on the real cell diameter, spaced on a pitch that leaves a printable wall between cells. Row holder, thin indexing spacer grid, and a two-row series-pack holder.

An anti-slip LiPo tray / pad for FPV & RC craft, with strap channels so the battery strap seats flush and does not creep. Sized to the pack footprint. Choose a flat grippy pad with strap slots, a walled tray that captures the pack, or a wedge that tilts the pack to shift the centre of gravity.

A 3D-printed stiffener frame for an in-garment battery pocket. A soft pocket sewn into a heated jacket or a sensing vest sags around the pack, lets it rotate, and lets it slide out the mouth — and a lithium pack that rotates chafes its own leads. This rounded-rect frame is stitched into the pocket through perimeter sew holes and gives the pack a defined bay, with a retention lip stepping inward at the mouth and a depth skirt the pack registers against. This is the rigid hard good the Fashion Cabinet battery-pocket notion places and bridges to here for its geometry.

Insulating covers and boots for battery terminals, threaded studs and bolted lug joints - the short-circuit and accidental-contact protection that keeps a dropped spanner off a live post. The pocket lands on standard post / stud / lug sizes (SAE automotive posts 17.5/15.9 mm, M8/M10 studs), so a printed boot seats over a real terminal and its ring lug with a cable-exit notch. Includes a snap post cover, a threaded-stud boot, and a bolted bus-link cover.

Lab-glassware support hyperobject: an open C-ring clamp that hugs an Erlenmeyer or beaker body and locks onto a ring-stand rod, an inverted-neck drying holder sized to standard 34 mm flask necks, and a weighted rod-stand base. Sized to real borosilicate glassware and 12 mm support rods.

A parametric housing that seats a standard deep-groove ball bearing (608, 623, 625, 6900, 6902) in a press-fit bore with a shoulder so the bearing seats to a positive stop. The seat bore, seat depth, and shaft clearance come from the bearing table so the printed part fits a real bearing. Build a raised pillow block with a horizontal shaft axis, a flat flange mount with a face bolt pattern, or a bare press-fit insert ring.

The vacuum end-effector primitive: a flared sealing lip over a short convoluted neck. The convolutions let the cup collapse axially when vacuum is drawn, so it lifts a part off a surface without the whole tool moving down, and tolerates a part that is not square to the tool. Cup diameter follows the common 20 / 30 / 40 mm pick-and-place series, and the vacuum port is the shared barb series the rest of the soft-pneumatic family speaks.

A 3D-printed center-bar belt buckle — the rounded frame, its center bar, and the prong that curls around that bar and drops into a punched belt hole. This is the rigid hard good the Fashion Cabinet `belt-buckle` notion places and bridges to here for its geometry, for kilts, belted coats and waistcoat cinches. Sized so a garment's finished strap width drives the finding.

Belt-worn carry hardware sized to your belt width. A sprung belt clip that snaps over the belt, a device pocket holster with an integral belt loop, and a bare belt loop to graft onto anything.