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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Newest
Flat pack Lego style cab based loosely on the BR Type 47 diesel
Brute is a hollow, LEGO-compatible cab modelled loosely on the British Class 47 locomotive. It is six studs wide and four deep, with a closed floor that carries a grid of sockets so it presses onto a standard baseplate. Two studs on the nose give a place to clip on headlight pieces. Features Raked twin windscreens and side door windows Flat, smooth roof at five-brick height Two studs on the front face for headlights Lamp recess centred between the headlight studs 6×4 socket grid under the floor Dimensions Width: 47.8 mm Depth: 31.8 mm Height: 48 mm to the roof Headlight studs: 4.8 mm diameter, 8 mm either side of centre Print notes Print upright on the floor plate, or flipped onto the roof for a clean top surface. Hollow underneath and open at the rear.
1:37 Tiger I 8.8 cm KwK 36 Barrel
A static 1:37 scale 8.8 cm KwK 36 L/56 gun barrel for the Tiger I, with a muzzle brake and a rear mounting stub. Fitment Scale: 1:37. The tube is 133.2 mm long (4,930 mm full size) and does not include the muzzle brake. Bore: 2.38 mm (88 mm full size). It is modelled as a recess in the brake end, not a through bore. Rear stub: stubd is 6 mm and stubl is 6 mm. These are placeholder values. Measure the mantlet hole on your own kit and set both before printing. Does not fit: any kit with a different mantlet bore. It also does not fit other 88 mm guns such as the KwK 43 or the Flak 36. Details Tapered tube profile, from a thick breech end down to a slim muzzle end. Three reinforcing rings along the tube. Double-baffle muzzle brake with side slots, fused to the tube. Check before printing The mantlet bore diameter. Print the barrel standing upright or lying flat, depending on your printer and the fine detail you want to keep. The brake slots are the finest features.
Formica — Gestufter Ameisen-Napf
Ein kompakter, standsicherer Futternapf für Ameisen und andere kleine Terrarientiere. Die Form ist auf minimale Ertrinkungsgefahr und leichten Zugang optimiert: Mehrstufiger Rand: Erleichtert den Ameisen den Halt und Zugang zur Flüssigkeit. Sanfte Vertiefung: Keine scharfen Innenkanten, sodass Futterreste leicht gereinigt werden können. Flacher Boden: Verhindert ein Umkippen im Terrarium. Der Napf lässt sich ohne Stützstrukturen direkt drucken.
Janome RE10B Hoop Frame
A stripped-down, standalone frame replica for the Janome RE10B embroidery hoop. This is purely the central retaining ring with all machine-mounting hardware, tabs, and locking screws removed, leaving a clean, continuous loop. Dimensions Inner Opening: 100 mm × 40 mm Outer Envelope: 112 mm × 52 mm Depth: 7 mm Verify the 100x40 mm inner bore before printing to ensure your fabric setup will fit correctly. The edges are filleted vertically to recreate the capsule-like profile of the original part.
25mm Tactical Tabletop Tokens
A complete set of nine 25mm wargaming tokens tailored for tabletop tracking. Designed with a clear separation between the base and the raised lettering, making them perfectly suited for a mid-print filament swap or a multi-material system. Specifications Dimensions: 25 mm diameter, 4 mm overall height. Tolerances: The raised text and outer rim sit exactly 1 mm above the base layer, creating a clean Z-height transition for color changes. Printability: No supports required. The bottom edges feature a 1 mm chamfer to prevent elephant-foot distortion on the first layer, ensuring the tokens remain perfectly circular and easy to pick up from flat tables. Layout: Arranged in a flat 3x3 grid for immediate batch printing. Can be split into individual models in the slicer if needed.
67mm Lens Cap Strap Clip
Pinching off a lens cap and immediately dropping it in the dirt is an avoidable mistake. This clip mounts directly to a camera strap to hold a 67mm pinch cap securely while the lens is in use, keeping it out of your pockets and off the ground. Strap slot: 42mm wide with a 3.2mm clearance and a diagonal slip-channel, letting it twist onto the webbing without unthreading the strap. Cap receiver: 67.5mm internal groove catches the cap's pinch prongs, with an angled lip to lock them in place. Tether loop: 6mm bore on the side to run a backup paracord lanyard. Print orientation: Internal overhangs are angled to print support-free when placed face-up on the plate.
Captive Tire Deflator
A two-piece threaded cap and deflator button for standard Schrader valves, designed to bleed tire pressure without needing a separate tool. The hex-bodied cap threads securely onto the valve stem while housing a captive push-button mechanism. Assembly Drop-in fit: The plunger is designed to be dropped into the open bottom of the cap before threading it onto the tire. Captive design: Once screwed onto the valve, the tire stem itself traps the flange of the plunger against the ceiling of the cap, keeping it permanently secured. Print orientation: Both pieces sit completely flat on the build plate, needing no supports or brim to print cleanly.
RC Car Bevel Gear Rear Drive
A rear-axle drive for an RC car where the motor shaft has to turn 90° into a cross-car axle without the gears skipping or the motor shifting. This set uses a 12-tooth pinion and 24-tooth crown gear (2:1) on a 103.9 mm × 6 mm axle, with an open motor cradle instead of a closed box. Key numbers Gears: module 1.5, 20° pressure angle, 4 mm face width, 90° shaft angle Pitch cone angles: 26.57° (pinion) and 63.43° (crown); cone distance about 20.1 mm Pinion bore 2.1 mm, crown bore 6.2 mm, both with M3 set-screw holes in the hubs Axle supports: 6.4 mm through-hole plus a 17.3 mm seat for 606 bearings (6×17×6) Base: 84 × 92 × 5 mm, M3 holes (3.4 mm clearance); cradle slots allow forward and back adjustment Motor cradle parameters at the top of the file: mw, mh, wall, saddlel, saddley. Measure the real motor and edit them Cover is open at the bottom, with two M3 ears at the rear Printing Print gears with the hub facing up or down on the bed; PETG or nylon preferred Cover prints open-side up without supports Axle is a separate 6 mm steel rod; M3 screws hold supports, cradle, straps and cover
Vented 50mm Speaker Basket
A custom 3D-printable 50mm speaker basket designed for custom driver assemblies. It provides a rigid framework linking a standard 50mm top surround ring to a tailored bottom magnet housing. This version features a completely hollow core: Pass-Through Bottom: The central pole has been deleted and the floor bored out to 25mm, allowing full clearance for a voice coil and T-yoke assembly. Magnet Seat: Leaves a 3mm resting lip for a standard 31mm ring magnet. Acoustic Venting: Four structural struts anchor the assembly while maximizing rear airflow.
Vented Acoustic Basket
A skeletal mounting chassis designed to hold a custom 50mm driver assembly. The aggressive cutouts strip away unnecessary mass, leaving four sweeping struts that provide rigid support while entirely opening the rear wave to prevent acoustic reflections. The base houses a precision-cut cavity tailored to scavenged PC fan magnets, complete with a vented central pole piece. Acoustic Details Rear Ventilation: 50-degree windows cut low into the voice coil gap ensure maximum airflow and heat dissipation. Magnet Housing: A 28.5mm OD x 5mm bottom slot sized specifically for standard 120mm fan ring magnets. Mounting Interface: 50mm outer diameter upper ring with a 2mm wall thickness for standard cone attachment.
NAJMA
A compact, single-piece delivery truck chassis designed as Part 1 of a commemorative desk model. Engineered to print in place with zero assembly required for the base. Integrated Wheels: Solid cylinders fused into the chassis base for a robust, no-moving-parts foundation. Rear Platform: Provides a flat bed with two precisely placed alignment pins to locate a custom cargo box. Commemorative Markings: Features embossed text on the cabin roof celebrating the occasion. Built to be fully printable without supports, keeping the underside flat and stable.
Drone Frame For 8mm Motors
A quad frame for 8 mm motors with a 14 mm wide, lattice-cut camera mount on the top deck. Fitment Motors: 8 mm, in 8.4 mm bore cups. Does not fit 7 mm or 11xx motors without resizing. Camera mount: 14 mm wide extender and slanted plate, with a single vertical wall at the low end and a 7 mm lens hole. Frame: 4 arms, 58 mm guard rings with two curved sticks each, raised deck, hollow pointed legs. Check before printing Measure the camera body width. The 14 mm wall suits only nano-size FPV cameras. Known limits No flight-controller holes in the deck. The camera has no retaining feature. Use a strap or glue.
1/2" Pitch 24T Solid Blank Sprocket
A solid 24-tooth bicycle sprocket designed for standard 1/2" pitch, 3/32" wide chains. Fitment Pitch: 1/2" (12.7 mm) Chain Width Compatibility: 3/32" (Teeth are chamfered down to ~2.2 mm at the edges to clear the narrow rollers) Overall Plate Thickness: 3/16" (4.76 mm) for rigidity Center Bore: Completely solid blank (0 mm) — designed to be custom drilled or machined to fit your specific motor or prop adapter. Overall Diameter: ~104.9 mm The solid center provides maximum material for custom mounting solutions. Print with a high infill and robust walls if this will see significant torque.
Deflettore Angolare Modulare 218mm
What it's for Deflettore d'aria angolare modulare progettato per ammorbidire un angolo di 90 gradi e ridurre le turbolenze nei condotti (come i condotti reflex). La geometria della curva è ottimizzata per garantire la massima robustezza alle estremità e resistere alle alte pressioni d'aria, mantenendo un accoppiamento a filo sulle pareti. Dimensions Lunghezza: 218 mm. Profilo di base: 20x20 mm. Raccordo: Curvatura calcolata per unire le pareti con un angolo smussato ma senza finire a lama sottile. Assembly Il design include un pin di centraggio maschio e un foro femmina alle estremità, permettendo di impilare saldamente più deflettori in serie. Una volta inserito in sede, lo spigolo blocca la rotazione dei segmenti.
High-Walled Mammal Litter Box
A heavy-duty, high-walled litter enclosure designed for small mammals. The solid base limits scattered bedding, while the dropped, U-shaped front entry provides easy access. The entire perimeter—both the upper walls and the entryway lip—is finished with a full-radius bead to eliminate sharp edges and ensure comfort. Dimensions: 220mm x 160mm x 100mm Entry Height: 25mm from the floor Wall Thickness: 4mm solid perimeter Edge Treatment: 20mm internal radiused corners, full round top rim
500x350mm Footprint | Small Mammal Pan
A wide-entry litter pan scaled for small mammals. Fits a standard 500x350mm floor space, replacing the tall cat-style entry with a broad cutaway for easier clearance. Fitment Footprint: 500x350mm Entry Width: 440mm Step-in Height (Lip): 40mm Total Wall Height: 200mm
Duo Gear — 30T and 15T Spur Pair
Duo is a matched pair of spur gears at a 2:1 ratio: a 30-tooth gear measuring 90 mm across the tips and a 15-tooth partner, both 10 mm thick. Tooth size is shared, so they mesh directly and are laid out at the correct centre distance. Features 30-tooth gear: 90 mm outer diameter, 10 mm bore 15-tooth gear: same tooth pitch, 8 mm bore Both 10 mm high, flat on the bed Pre-positioned in mesh Print notes Print flat, no supports. Adjust bores to fit your shafts.
Seatbelt Buckle Holder with Snap Clips
A twin seatbelt buckle holder with two separate snap clips. Each clip bridges the top of a pocket and clicks into grooves on the sleeve, so the buckle can't tip out. Remix hooks Bar width (8 mm): widen it for a firmer hold, or narrow it for easier buckle removal. Groove height (18 mm up the sleeve): move it to change how far the clip sits above the pocket. Barb depth (about 1 mm): increase it for a stronger snap, or reduce it if the arms feel stiff in your filament. Arm thickness (2.2 mm): thinner flexes more, thicker holds more. Pairs with: the original 33 x 53 mm pockets, 28 mm sleeves, and 130 x 64 mm footprint, all unchanged. Print the clips flat as laid out, with the bar on the bed. PETG flexes better than PLA for the arms.
Published
A dashboard phone cradle perfectly sized for an iPhone 15 Plus in a standard case, built with a heavy-duty vent mount clip. Center Star Motif: A single crisp five-point star punched through the bottom face. Vent Clip: Uses cross slits for a snug friction fit on standard car air vent louvers. Side Access: The midsection is cut away, leaving only top and bottom cuffs so your side buttons remain entirely clear.
Double Seatbelt Buckle Holder, Backseat
Two seatbelt buckles flop around and fall into the seat gap, so this holder stands both upright side by side in the backseat of a Toyota Sienta. Each 33 x 53 mm pocket goes straight through the base, so the buckle and webbing pass through with nothing blocking the bottom. Pocket size: 33 x 53 mm each, sized for a 31 x 51 mm buckle Sleeve height: 28 mm above a 6 mm base Overall footprint: 130 x 64 mm Centre screw hole: 4.5 mm Print flat on the base, no supports needed
Holder
A rigid dash mount built to exactly fit an 80x160mm phone. Features a minimalist capture system: the phone slides in vertically and is retained by four small 11mm corner cuffs. The cuffs feature a deeply cut geometric star framed by a shallow 0.5mm engraved swirl. A rigid 2mm backstop spans the bottom cuffs to prevent the phone from slipping through. Footprint: 80x160mm exterior Retention: Four slim corner cuffs (top-loading) Mount: Standard 17mm ball joint (fits common dash and vent sockets) Detailing: Engraved swirls over star cutouts
Squarebody Pickup Frame and Shell
A slab-sided late-70s Ford pickup shell in the squarebody mould, paired with a 4x4 ladder frame. The body has a flat hood, upright windshield, boxy cab with a flat roof and a straight-sided bed, with square wheel openings at both axles and a slotted grille. Design notes Body prints separately and sits over the frame on four pinned mounts Underside is open so it drops over the rails Frame has arched rails, shock towers, battery cradle and electronics plate Pairs well with a two-tone paint job
Phoen
A car phone holder built around a robust 12mm deep five-point star backplate. Fully rotating via a standard 17mm socket ball, this cradle features deeply pocketed bottom hooks and wraparound side arms designed to safely encapsulate heavy devices like an iPhone 15 Plus. Fitment: Wide 88mm interior span fits iPhone 15 Plus with standard cases. Mounting: Standard 17mm ball joint interfaces directly with generic dash and vent sockets. Restraint System: 4-point captivity (two lower shelves, two wraparound side grips) stops forward-tip during hard braking. Orientation: Rotates 360 degrees on the mount ball for landscape or portrait viewing.
Passat B6 Console Cup Holder 1.2v
A drop-in dual cup holder insert designed to fit the console space next to the handbrake in a 2006 Volkswagen Passat B6. The wedge-shaped body maintains a flush, horizontal top surface while following the sloped floor of the compartment underneath. Fitment: 180mm x 105mm footprint, tapering from 90mm down to 55mm in height. Capacity: Two 75mm diameter slots. The forward slot runs 75mm deep, and the rear slot sits 60mm deep to accommodate the console's slope. Features: Flared top lips for easy alignment, internal bottom fillets, and 5mm center drainage holes to handle condensation. Tolerances: Generous minimum wall and floor thicknesses (≥4mm throughout) ensure structural rigidity without requiring internal supports.
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