3D-printable automotive, RC & hobby parts
Car inserts, RC bumpers, slot-car bodies, drone guards and hobby parts with real dimensions. Browse what makers built, or describe the exact part you need and Printy makes it.
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20mm Suction Cup Feeding Ring
A 70mm floating feeding ring designed to corral flake food and keep it clear of the filter intake. The unit anchors to the tank glass via a single suction cup mount and features a fully enclosed hollow 12mm rim to maintain permanent buoyancy. Fitment details: Mounting standard: Mates with a standard 20mm aquarium suction cup. Neck clearance: 6.5mm center bore with a 2.5mm side entry slit. Slip the rubber stem through the channel rather than forcing the nub through a rigid hole. Incompatibilities: Will not fit oversized heater-mount cups or miniature 4mm airline tubing clips. Verify the neck diameter of the suction cup before printing.
Cristal 10mm Tubo 40mm Caja Sump
Caja de decantación y filtrado mecánico para instalación en el sump del acuario, diseñada para tubería de bajada de 40mm y calcetín estándar de 100mm. El enganche trasero asienta directamente sobre el borde del cristal (hasta 10mm de grosor) y utiliza un sistema de raíles prolongados y pasadores. Esto permite colgar el cuerpo principal completamente por debajo del borde del cristal del sump, dándote margen para ajustarlo exactamente al nivel de agua que necesites. Especificaciones de encaje Tubo de bajada: Paso libre de 42mm en la tapa para tubo estándar de 40mm. Filtro mecánico: Aro portacalcetín a 140mm de altura, compatible con calcetines de 10cm / 4 pulgadas. Cristal del sump: Garganta del colgador diseñada para grosores de hasta 10mm. Desborde: Ventanas de alivio perimetrales a 155mm de altura para evitar desbordes generales si se satura el calcetín. Tornillería: Sistema de anclaje mediante pasadores integrados en el soporte; no requiere tornillería extra.
Skimmer Inlet Mesh Cap
What it's for A friction-fit cap designed for the Octo Reef Classic 110-S skimmer nozzle. It features a hexagonal mesh face to maintain water flow while keeping snails out of the inlet, and solid walls to grip the fitting securely. Dimensions Inner diameter: 32 mm Total height: 20 mm Mesh openings: 5 mm circumscribed hexagons (roughly 4.3 mm flat-to-flat) Wall thickness: 2 mm Print notes The model is oriented to print upside down with the mesh resting on the bed, requiring zero supports. An interior chamfer on the open end helps it slide smoothly onto the nozzle. PETG is recommended for longevity in aquarium environments.
T3 Transporter Double Cab
A stylized, single-piece model of the classic T3 Transporter double cab (Doka). It captures the signature wedge front, the shortened rear bed, and the boxy utility stance. The geometry is built specifically to sit directly on the build plate. The wheels share a flat contact patch at ground level, and the window angles act as self-supporting bridges, making it a reliable print-in-place model. Integrated base: Flat-bottomed wheels keep it stable during printing. Recessed trim: Windows and grill are built as internal blocks to give depth to the side panels. Drop-bed: The rear bed is recessed 5mm behind the cabin to mimic the real utility platform.
T3 Transporter Double Cab
A stylized, single-piece model of the classic T3 Transporter double cab (Doka). It captures the signature wedge front, the shortened rear bed, and the boxy utility stance. The geometry is built specifically to sit directly on the build plate. The wheels share a flat contact patch at ground level, and the window angles act as self-supporting bridges, making it a reliable print-in-place model. Integrated base: Flat-bottomed wheels keep it stable during printing. Recessed trim: Windows and grill are built as internal blocks to give depth to the side panels. Drop-bed: The rear bed is recessed 5mm behind the cabin to mimic the real utility platform.
1/400 Widebody Jetbridge
A static 1/400 scale airport jetbridge model, dimensioned specifically for widebody aircraft like the Boeing 777, 787, and Airbus A350. The model is scaled so the cab floor rests roughly 11.5 mm off the apron, translating to a 4.6-meter door sill height in real life. Features: Rotunda: 20 mm tall pivot base to anchor against terminal buildings. Tunnels: Fixed stepped sections showing the inner and outer telescopic sleeves, topped with low-profile AC units. Bogie: Quad-wheel lift mechanism bridging the ground and the junction. Cab: Angled head with a protruding bumper seal to interface with the aircraft fuselage. Designed with robust 1.5 mm minimum strut thicknesses to survive FDM printing at this scale. Resin printing is recommended for the sharpest results on the wheels and AC boxes.
Waist-Level DSLR Viewfinder Hood
The glare off a DSLR screen in bright sunlight ruins focus pulling, and laying on the dirt to look at a fixed screen is worse. This builds a classic waist-level finder enclosure that mounts directly to the back of a Canon 650D. The mirror kicks the screen image up at 90 degrees, passing it through a top-mounted Fresnel lens, while four overlapping panels fold out to block the sun. Mechanical Details Clearance: 0.5mm on the hinge knuckles. Use a piece of 1.75mm raw filament as the hinge pin for all four folding panels. Optics: The 45° mirror tray accepts a 64x64x1.2mm flat mirror. The top frame holds a standard flexible Fresnel magnifier sheet. Both trays slide out for cleaning. Print Orientation: The parts are laid out flat in the STL. The main enclosure is rotated to print like a cup, entirely without supports. The LCD window bridge has an internal chamfer to ensure the overhang prints cleanly. Fitment: The internal dimensions match the 650D's 3:2 screen (68x46mm opening). Add a 1mm adhesive rubber gasket to the recesses on the camera face to prevent plastic-on-glass scratching.
Tapered 6x9 Speaker Packout Spacer
A tapered mounting spacer designed to fit a 6x9 speaker into the lid recess of a Milwaukee Packout compact case. The ring compensates for the natural lid tilt, ensuring the speaker sits level, and clears the internal lid structure. Footprint: 236 mm x 166 mm. Taper Profile: Slopes from 26.5 mm at the front latch side down to 10.0 mm at the rear hinges. Clearances: 38.1 mm spacing on the underside grid channels to clear standard Packout lid ribs. Hardware Interface: Slotted bolt pattern set at 166.5 mm x 118.5 mm centers with recessed head pockets.
Round Magwell Concept
A generic flared magwell concept with a circular outer profile and a standard rectangular double-stack magazine track. Outer Profile: Circular, flared cone Inner Track: Standard double-stack rectangular cutout Mounting: Rear grip plug with a horizontal retention pin hole
VW Beetle Wheel With Tire
A bare steel wheel sitting on a desk is basically a heavy paperweight waiting to scratch the finish. This adds a classic 165R15 rubber tire profile around the 1974 VW Beetle 15" rim, giving it a proper footprint so it stays put and stops dinging the furniture. Dimensions & Fit Rim Specs: 15" x 4.5J (ET34 offset, 4x130 lug pattern, 80mm bore). Tire Specs: Classic 165R15 profile, roughly 640mm overall diameter. Printing: A full-scale print of this assembly will require a massive print volume. Scale it down to use as a coaster, display piece, or RC car wheel.
Dished Lattice Dashboard Pad
A low-profile grip pad designed to keep items secure on the dashboard during sharp turns and sudden stops. Built with a gentle center depression, it encourages phones, sunglasses, and loose change to settle inward rather than spilling off the edges into the footwell when navigating roundabouts or braking. Diamond lattice surface: Provides fine-grained traction for smooth items. Dished profile: Recessed center counteracts momentum to keep items contained. Solid rim: Encloses the textured grid and maintains the structure of the 120x80mm footprint. For optimal performance, print this part in a flexible filament like TPU to maximize surface grip against both the dashboard and the stored items.
Flush-Edge Bike Reflector Bracket
A robust, print-in-place mount for securing a 25x35mm front-facing bike reflector to a 12.5mm handlebar. Designed for maximum structural integrity, the mount prints entirely on its side. This orientation aligns the extrusion paths parallel to the flexing motion of the C-clamp, ensuring it can safely snap over the bar without delaminating. The clamp itself is shifted flush with the bottom edge of the mounting plate, allowing the entire assembly to sit perfectly flat on the print bed without requiring supports. Design Notes Glued Mount: The front plate features intentionally sharp 90-degree edges to perfectly frame the reflector while providing a flawless adhesion surface. All other exterior edges are softened. Hardware: The clamping mechanism accepts a standard M4x15mm screw and hex nut. Orientation: Prints as provided. The hex nut recess is oriented to bridge cleanly across the top flat.
Apache 3800 to VD-8 Speaker Spacer
Spacer ring designed to adapt a VD-8 speaker to an Apache 3800 waterproof case. This maps the flat 217mm outer flange of the VD-8 directly onto the ribbed exterior of the Apache 3800 lid. Fitment Specs Speaker Bore: 191mm (190mm + 1mm clearance). Bolt Pattern: 203.5mm bolt circle with eight 4.5mm holes. Countersinks are 8mm diameter and 2mm deep to keep hardware flush. Case Mating: Relief cuts on the bottom face clear the stock Apache ribs (spaced 42mm x 44mm). Cutouts are drafted to 2.8mm wide and 3.2mm deep. Thickness: 12.0mm overall standoff. Note: The rib relief pattern is centered perfectly on the speaker bore. If you mount this off-center on the Apache lid, the ribs will bind.
Ruggedized Kicker Contour Spacer 4800 grid
A 6mm custom spacer for mounting a Kicker 47KBRW10 10-inch passive radiator inside an Apache 4800 equipment case. Features precision cutouts tailored to the exact internal ribs of the Apache case, allowing the spacer to sit flush without modifying the box itself. 271.8mm outer diameter / 233.4mm inner cutout. 8-hole mounting pattern on a 252mm circle. 3mm rounded channels above and below the center axes. 1/4-inch stepped reliefs along the outer edges for the bottom 3mm only.
GM 20218853 Molding Clip
What it's for Replacement wide trim molding retaining clip for 1981–1987 Buick Regal 2-door models (including Limited and Grand National). Designed to replace GM part #20218853, it secures the vinyl top and side wide molding directly to the roof and side pillars. Dimensions Width: 44.5 mm (1.75 inches) Height: 23.2 mm (0.915 inches) Base Profile: 1.6 mm sheet thickness Assembly The clip slides sideways over the factory body weld studs, locking in place via the 15-degree center tang. The side wings feature stress-relief slits and 35-degree downward-angled locking barbs. These flex inward as the metal trim presses down, then snap outward into the rolled inner lip of the molding to maintain constant spring tension against the body. Must be printed in PETG, ASA, or ABS. Standard PLA will shatter under installation pressure or warp in the sun.
Snapping Front Reflector Clamp
A sturdy, support-free front reflector mount designed for an 11mm handlebar. The clamp prints vertically, keeping the layer lines parallel to the main body to allow the rear hinge to flex open without snapping during installation. Mounting: Friction fit for 11mm bars, secured with a 15mm M4 bolt Interface: Flat 25x35mm front plate for gluing a standard reflector Durability: The screw tabs are fused directly into the clamp body to prevent stress fractures Hardware: Recessed hex trap for a standard M4 nut allows one-tool tightening
powerbox modular
A sloped-console enclosure for a custom battery power box. The case features a sloped front panel for mounting a DSN-VC288 volt/amp meter and a generic battery level indicator, positioning them at an ergonomic viewing angle. Outputs: Four 14 mm barrel jacks on the front panel. Inputs: One 14 mm barrel jack and a 17×12 mm power switch cutout on the rear. Internals: A segregated 70×60 mm battery compartment with retaining walls. Assembly: Four M3 corner bosses meant for heat-set inserts, securing a drop-on top plate.
5/16x14 Cue Joint Protectors
A matched set of joint protectors for pool cues using the 5/16x14 piloted joint standard, heavily used by Schon and similar makers. Includes a female cap to protect the exposed butt pin, and a male plug to seal the shaft insert. Both feature fluted outside edges for easy threading and unthreading. Remix Hooks Cue Diameter: Default is 21.5mm OD. Thicker cues might want 22mm; older cues might sit closer to 21.2mm. Clearance: The female thread (butt protector) is oversized by 0.6mm, and the male pin undersized by 0.2mm to survive FDM printing tolerances. Dial these in depending on your printer's flow rate. Pilot Recess: The butt protector has a 13.5mm diameter x 3.5mm deep recess to clear a standard Schon pilot collar. Grip Profile: The 4mm semi-circle edge flutes can easily be swapped for a knurled mask or flat-cut hex sides.
Domed 10-Inch Kicker Grill
A heavy-duty 10-inch subwoofer grill featuring six interwoven 1/2-inch round bars. The bars rise into a central dome for maximum excursion clearance, with the outer bars plunging smoothly along a spherical radius to anchor seamlessly into the mounting ring. Clearance: High-arched dome design to prevent cone slap on high-excursion 10-inch drivers like Kickers. Mounting: Standard 8-hole pattern on a 246mm (9-11/16") bolt circle. Hardware: Counterbored mounting holes accept standard socket-head cap screws flush with the face. Printability: Modelled completely face-down so the intricate bar crossings print flat against the glass with zero supports required.
60mm Functional Open Differential
A complete 60mm mechanical open differential and display stand. It separates the internal components—four spider gears on a central cross, two side gears, and a carrier housing—exactly as they sit in a full-scale axle. The carrier housing splits cleanly in half to accept the cross and side gears, bolting together to secure the assembly. Three hex-driven input and output axles press-fit into the gears, allowing you to turn the pinion by hand and watch the side gears rotate independently through the spider gear array. Assembly Notes Hardware: Requires four standard M3 screws to clamp the carrier halves together. The lower carrier is sized for self-tapping, while the top has clearance holes and countersinks. Gears: The bevel gears are toleranced for FDM with an 0.4mm nozzle. Press the three hex axles into the pinion and the two side gears. Stand: The entire assembled carrier and pinion assembly drops into the U-slots on the display stand. No glue required.
47x42x50mm Robot Arm Base
A simple 5-sided enclosure acting as the first axis base for a robotic hand. The box provides a sturdy foundation with 2.5mm walls and a chamfered exterior. Outer Dimensions: 47mm (X) × 42mm (Y) × 50mm (Z) Wall Thickness: 2.5mm on all closed sides Configuration: Open on the top face for inserting motors or wiring Features: 1mm external chamfers for printability and handling comfort
10-Inch Kicker Subwoofer Spacer 4800 ribs
A precise 6mm-thick mounting spacer for a 10-inch Kicker subwoofer, designed to match the 47KBRW10 frame. Features Bolt Pattern: 8 holes starting at the 11:30 position and distributed uniformly clockwise around the 252mm BCD. Cable Routing: Four dedicated horizontal underside rib channels. Fitment: Engineered with accurate 1-inch offsets for structural routing to avoid pinching or sealing issues along specific axes.
Apache 4800 Kicker Sub Spacer
A custom 6mm spacer for mounting a Kicker 10-inch subwoofer frame inside an Apache 4800 hard case. Features specific underside relief channels on the top and bottom edges (holes 1-2 and 5-6) so the case lid ribs can slot directly underneath without interfering with the mounting face. The top surface remains perfectly flat to ensure a flush seal with the speaker basket. Pattern: Standard 8-hole (252mm BCD) Clearance: 3.2mm wide by 3mm deep horizontal channels on Z=0 Thickness: 6mm overall
MoogMatch — Vertical 6HP Pod
A 6HP Eurorack extension pod designed to match the 20-degree panel slope of the Moog Mother-32, but modified with straight vertical front and back walls to eliminate printing overhangs. Features Perfect Pitch: Maintains the exact 20° slope of the Moog tier system. Support-Free: Vertical exterior walls drop straight to the desk, meaning this prints flat in one go. Integrated Rails: Features 2.5mm continuous slots built right into the lip for standard M3 self-tapping screws.
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