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.*
4S2P 18650 Frame-Strap Battery Box
A low-profile open-top tub for a DIY 4S2P pack of eight 18650 cells (18.4 x 65 mm) laid in two layers of two, with an internal bay of 134 x 39 x 39 mm. The outside measures 144 x 44 x 45 mm. Two 22 x 3.2 mm strap tunnels run through the 6 mm floor so velcro straps hold it to a down tube or frame triangle. There's a 16 x 10 mm main-lead notch at one end, an 8 x 6 mm balance-lead notch at the other, and four M3 heat-set columns to screw on a flat lid. It's for an e-bike, scooter or robot pack you build yourself.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.
Bar Load Cell Riser Mount With Overload Stop
This is a cantilever base for the bar-type strain-gauge load cells used with HX711 boards. A 40 x 30 mm riser holds the fixed end 20 mm above a 110 x 50 mm plate. Its 5.5 mm slot, with a hex-nut track underneath, takes M4 or M5 bolts in a 15–26 mm pattern, so you don't need a matching bracket. Under the free end is an M4 heat-set overload-stop post: a screw in it sets the gap so a dropped weight can't over-bend the cell. The plate fixes down with four 4.5 mm (M4 / #8) holes.
18650 Four-Bay Screw-Contact Test Sled
A sled that holds four 18650 cells (18.4 x 65 mm) in 19 mm open-top troughs on a 24 mm pitch, so you can test, balance or capacity-check salvaged cells without spot-welding. Each end wall takes an M3 brass heat-set insert (4.0 mm bore) on the cell axis. An M3 screw threads in to clamp the cell and make contact, with 3 mm of travel at each end. Footprint 100 x 87 mm, 20 mm tall.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.
Pi 4 And Pi Zero Nut-Track Project Box
A 120 x 80 x 32 mm project box. Its 4.2 mm floor has four captured M3 nut tracks spaced for both the Raspberry Pi 4 (58 x 49 mm hole pattern) and the Pi Zero (58 x 23 mm), so you can bolt a board anywhere along the tracks. It has cable notches in both ends, vent slots in the side walls and four M3 heat-set insert bosses (4.0 mm bore, 8 mm deep) for screwing on a flat lid.
Pan Servo Base Housing
This is the base of the 'MG996R Heavy Pan-Tilt Camera Gimbal' kit. It is an open-bottom box, 100 x 100 x 48 mm, with a 41.5 x 20.5 mm window in a 4 mm deck. One MG996R pan servo drops into the window and hangs by its tabs, held with M4 screws through four 4.5 mm slots. The deck also has six 4.0 mm M3 heat-set bores for three 624 roller thrust forks on r = 42 mm, and four 4.5 mm M4 bench-screw holes run through full-height corner columns. It prints deck-down with no supports.
Stewart Hex Base Plate
The foundation of the MG90S Six-Servo Stewart Platform kit. It is a 170 mm round plate, 5 mm thick, with 12 M3 heat-set insert bores (4.0 mm) for six servo cradles in three pairs on a 62 mm radius. It also has three M3 clearance holes on a 78 mm radius for the electronics-deck legs, a 56 mm cable pass-through, and a notched 3 mm underside stiffening rim, and it weighs in at about 90 cm³. It prints top face down with the rim up, so it needs no supports.
Biped Hip Servo Torso
An 80 x 70 x 32 mm open torso frame for a small biped robot. Both side walls have a 23.6 x 12.8 mm window with tab slots for a micro-servo (SG90 size) to drive each hip. Each side wall also has an M3 pivot hole for a follower link. The top deck has four 4.0 mm bores for M3 heat-set inserts, and the base plate has a lightening cutout to save weight.
18650 Battery Tail Cradle
A 78 x 46 x 33 mm bolt-on tray that holds two 18650 cells (18.4 x 65 mm) side by side on the back of a rover chassis. Three saddle ribs with 19.4 mm half-round channels locate the cells. Velcro strap slots and zip-tie slots hold them down, and the front wall has four M3 heat-set bores (4.0 mm) for mounting.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.
Inchworm Servo Pedestal Chassis
This is the rear body of the 'SG90 Sawtooth-Foot Inchworm Crawler' kit. It is a 136 x 60 x 4 mm deck with a grid of 3.4 mm holes on a 10 mm pitch, where the rear sawtooth foot mounts with M3 screws. It also has two 3 x 22 mm battery-strap slots and a hollow, ribbed pedestal 16 mm tall that holds an SG90 servo lying on its side. The servo sits between cradle walls 23.6 mm apart and is clamped through two M3 brass heat-set inserts in 4.0 mm bores. Two 3.4 mm deck holes take the idler pivot post with M3x12 screws and nuts.
Shoulder 60T Pulley Hub
This rotating shoulder hub is part of the 'NEMA17 Belt-Drive SCARA Drawing Arm' kit. It is a 52 x 44 x 38.5 mm part with a 60T GT2 pulley at the bottom (tip OD 37.69, 8 mm track between 1 mm thick, 44 mm OD flanges) and a 44 mm bolting flange at the top. It runs on two 608 bearings in 22.05 mm pockets (6.5 mm deep at the bottom, 7.2 mm deep at the top) on the base's 8 mm shoulder rod. The top flange takes four M3 heat-set inserts on a 34 mm PCD for the upper arm. A +X lug holds both ends of the open GT2 belt in 2.2 mm slots, each crossed by a 3.4 mm hole for an M3x16 pin screw.
150 mm Balance Tray Platform
This is the moving Ø150 x 3 mm top tray for the 'SG90 3-DOF Ball-Balancing Platform' kit. Its smooth playing surface prints face-down on the bed. On the underside, six Ø9 mm bosses stand 6 mm proud at radius 43 and 67 mm on the 90°/210°/330° spokes. Each takes an M3 brass heat-set insert (4.0 mm bore, 5.5 mm deep, blind) so the three Tray Ball-Stud Knuckles can bolt on with M3x10 SHCS. Three 3 x 6 mm radial ribs, a Ø24 mm hub ring and a 2.4 mm outer ring stiffen the tray so the PID loop sees no flex.
Turret Pan Turntable Disc
A 110 mm diameter, 6 mm thick rotating deck for the 'NEMA17 Geared Radar Scan Turret' kit. It bolts to the top of the 60T ring-gear hub with four M3x8 screws that sit in 3.4 mm counterbored holes on a 40 mm PCD. It carries the sensor tilt yoke on four M3 brass heat-set inserts in 4.0 mm bores at ±18 x ±12 mm. It also has a 12 mm cable pass-through, an 18 x 1 mm underside recess that clears the 8 mm rod end and the 608 inner race, six 20 mm lightening windows, and a 1.5 mm stiffening rim that helps resist warping.
2020 Slot-Keyed M3 Grid Adapter Plate
An 84 x 64 x 6 mm adapter plate that bolts to 2020 extrusion with two M5 T-nuts. A 5.6 mm key sits in the 6 mm T-slot so the plate stays square to the rail. It has a 20-hole M3 grid (4.0 mm bores for heat-set inserts, 10 mm pitch), so sensors, boards and brackets with any M3 pattern on that grid can be mounted without drilling the extrusion.
M4 Threaded Rod Micro Slide Carriage
A 44 x 30 x 14 mm slide carriage for small linear actuators. It is driven by M4 threaded rod through a drop-in M4 hex nut (7 mm across flats) and rides on two 4 mm guide rods set 30 mm apart. It's meant for camera sliders, gripper strokes and small robots driven by N20 or micro-stepper motors, where T8/NEMA 17 hardware is too big. Four M3 heat-set insert holes on an 18 x 10 mm pattern on top take the payload.
Under-Desk Keyboard Tray Slide Rail
A print-in-place dovetail slide that turns any flat board into a pull-out under-desk keyboard or mouse tray — 175 mm rail, 99 mm of travel, 27.5 mm total drop below the desk. The rail screws to the desk underside through four 4.5 mm ears (fits #8 wood screws, 4.2 mm shank, or M4 machine screws) and the 60 mm carriage takes three M4 heat-set inserts on a 20 mm pitch so the tray board bolts on from below. Print two, one per side, spaced to suit your board.
Miter Slot Featherboard With Wedge Lock
A 100 x 58 mm featherboard with 13 angled spring fingers that drops into the standard 3/4 in x 3/8 in (19.05 x 9.5 mm) miter slot of a table saw or router table and locks with a print-in-place expanding wedge — two M4 screws into M4 heat-set inserts (5.5 mm bores) drive the wedge up and spread a flexing 18.6 mm jaw against the slot walls, so no T-bolts or star knobs are needed. Fingers are 8 mm tall and flex in the print plane, keeping stock pinned to the fence without the usual slop of a printed miter bar.
8 mm Rod 12-Position Detent Knob
A print-in-place indexing knob that clamps to an 8 mm smooth rod and clicks through 12 positions, 30° apart — for manual pan axes, jig stops, selector shafts and hand-turned leadscrew axes that need repeatable increments instead of free spin. The bolt-down stator ring (Ø50 mm, four M4 clearance holes on 60 x 28 mm ears, 79 x 50 x 30 mm overall) carries the detent notches; the rotor prints inside it with two 2.5 mm compliant spring arms and locks to the rod with an M3 heat-set insert and grub screw.
AA Screw Terminal Battery Holder
A four-cell AA holder (98 x 74 x 20 mm) with snap-in open-top channels on 18 mm pitch for 14.5 x 50.5 mm cells, so you can see and swap cells without a tool. Each cell end gets a contact window plus an M3 heat-set boss (4.0 mm bore) on top of the 9 mm end wall, so brass straps and ring-lug wires bolt down with M3 screws instead of being soldered to flimsy tabs; four corner ears take M3 clearance screws for chassis mounting.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.
Under-Desk Dock Clamp Mount
A 150 x 44 x 42 mm under-desk mount with a print-in-place sliding jaw that clamps a USB-C dock, hub, mini PC or laptop power brick up to 90 mm wide and 30 mm thick, so it hangs under the desktop instead of sitting on the floor. Screws to the desk underside with four #8/M4 wood screws through 4.5 mm holes; the captive dovetail jaw locks with an M4 set screw threaded into an M4 brass heat-set insert (5.5 mm bore, 7.6 mm deep), and 6 mm lips on both jaws hook under the device so it slides in from the side and cannot drop out.
Bench Heat-Set Insert Press
A fully printed bench press that holds any soldering iron barrel 12–22 mm dead vertical so M3/M4 brass heat-set inserts go into printed enclosures square instead of crooked — no arbor press, rods or donor hardware. The 90° vee carriage rides a print-in-place dovetail column (0.45 mm clearance) and is strapped to the iron with a rubber band or zip tie in the 7 mm retaining groove; the 80 x 73 mm base has two insert trays and four M4 clearance holes to bolt it down. Overall 80 x 73 x 105 mm.
Monitor Top Webcam Clamp Shelf
A clamp-on shelf that straddles the top bezel of a monitor and gives a webcam, action cam or small light a solid 41 mm deep platform with a 6.8 mm obround slot for a 1/4-20 tripod screw (14 mm of fore/aft travel) and a 3 mm anti-slide lip. The 18 mm wide throat swallows panels from about 5 mm to 18 mm thick and locks with an M4 x 25 screw into an M4 heat-set insert (5.5 mm bore) in the rear jaw, so nothing presses on the screen; two M3 clearance holes in the deck take a light arm or adapter plate. Overall 78 x 34 x 42 mm, printed as a single profile with no overhangs or supports.
Desk Edge 2020 Post Clamp
A C-clamp that grips a desktop 12–30 mm thick and holds a vertical 2020 extrusion post at the desk edge, so you can mount a lamp, mic boom, webcam or a small shelf without drilling the desk. 99 x 38 x 30 mm body with a 20.4 mm square socket 40 mm deep (two M5 clearance holes for T-nuts lock the post) and two M4 heat-set inserts in the lower jaw for the M4x30 clamp bolts; the flat 38 x 30 mm upper jaw pad bears on the desk surface and the rear face registers flush against the desk edge. Prints flat on the plate, no supports.
NEMA 17 Slew Ring Output Hub
A print-in-place rotary output stage for a NEMA 17 stepper joint: a Ø52 mm race bolts to the 31 mm square M3 faceplate pattern and sits over the 22 mm pilot boss, while a captured rotor clamps to the 5 mm shaft (Ø5.3 bore, M3 grub screw in a radial heat-set insert) and carries the arm on four M3 heat-set bosses in a 16 mm square. The printed race takes the radial and moment load that would otherwise destroy the motor's own bearings; total height 25.5 mm, two pieces, no assembly.