Created 8 days ago
Description
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.
Images

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.

Standard bell nozzles are a rigid compromise—they only hit peak efficiency at one specific altitude, meaning they waste fuel everywhere else. The aerospike solves this by turning the engine inside out. The exhaust plume expands against the central spike on the inside and the atmosphere itself on the outside, automatically adjusting its own expansion ratio as pressure drops. This is a functional model of an annular aerospike, heavily optimized for FDM printing. It uses a mathematically derived 1.5-power-law curve for the central plug, which efficiently redirects the radial flow from the combustion chamber into pure axial thrust. Engine Specs Throat Gap: 2 mm annular clearance around the base of the spike. Truncation: The spike is cut at 80% of its theoretical ideal length. This flat base eliminates dead weight while retaining roughly 99% of the full-spike efficiency, thanks to base-pressure recirculation. Support Structure: 6 internal struts carry the outer cowl load across the combustion chamber. Printability: Fully print-in-place with no supports required. The base sits flat, and the steepest overhang in the combustion section is well within safe limits.
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.
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.

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.
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