Created today
Description
A flat, no-fuss line-follower deck in the spirit of a bare-bones racing sled: one smooth plate, wheels tucked at the rear, and a sensor bracket reaching out front. Built around an Arduino Uno, with four solid standoffs matching the Uno R3 hole pattern.
Photos
Technical views

What it's for A line-follower chassis plate with N20 motor cradles, an adjustable-height front sensor tray, an ESP32 mount, a battery holder, a driver mount, a rear caster tab and an LED hole. Dimensions Overall: about 130 × 198 mm, under 25 mm tall (the plate sits 8 mm off the ground). Motor cradles: 12.2 × 24.7 mm pocket for a 12 × 10 × 24.5 mm N20, with a shaft notch and two M2 holes each. Wheel cutouts: sized for 34 mm wheels with more than 2 mm clearance to the plate. Sensor tray: 126 × 26 mm board shelf, two vertical M3 slots in the riser for height adjustment. ESP32: four standoffs for a 48 × 26 mm board, plus two zip-tie slots. Battery: 68 × 18 × 19 mm pocket along the axle line, two strap slots. Driver: two zip-tie slots for a 21 × 18 mm module. LED: 5 mm hole near the rear edge. Wiring: two 10 mm slots between the motor mounts and the electronics. Remix ideas Add a cover clamp across each motor cradle using the M2 holes. Change the caster tab hole spacing for a different caster. Add a second sensor tray for a different board width.
U-shaped holder for a 25 mm paddle shaft with a rack-and-pinion lock driven by a 12 × 10 mm N20 geared motor (3 mm output shaft). Laid out as separate flat parts for printing. What it fits 25 mm round paddle shaft in a 27 mm U-slot. N20 motor body 12 × 10 × 24 mm, in a pocket with 0.2 mm clearance per side. Motor retainer plate 24 × 14 × 3 mm, in a recess with 0.2 mm clearance. Check before printing Confirm your N20's body length and shaft length. Body length is a parameter. The shaft passes through a 5 mm hole (1 mm radial clearance), which also clears the gearbox boss. Not included No limit switches or stall sensing. The motor needs one or the other. The slot is open through in Z, so paddle support depends on the mounting. Parts Housing, sliding rack, pinion, motor retainer plate and guide cover plate, spaced at least 10 mm apart. PETG or ASA recommended.

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.
OO scale bay window body, 36 mm wide, 13 mm deep and 40 mm high, with 13 mm of brickwork at the base and three window openings above. Three open window frames print separately on the plate for painting and gluing into the openings. Scale: OO gauge (4 mm to 1 ft) Overall size: 36 × 13 × 40 mm Brickwork: 13 mm high, horizontal courses with staggered joints Front window: 24 mm wide opening; two angled side windows about 14.3 mm wide Frames: 1.6 mm thick with 1.6 mm borders and a through-opening Fit: frames sized with clearance to their openings Back: open, for gluing to a wall
Two tiled OO-scale roof slopes, two slated roof slopes, five brick chimneys and a downpipe, all laid out to fit a 256 × 256 mm bed in one plate. Remix hooks Layout: the four roofs sit side by side along X, with chimneys and the downpipe in the strip on the right. The whole set spans about 240 × 156 mm. Tiled roofs: 46 × 156 mm slab, 3 mm thick, 4.5 mm radius ridge tile wrapping 135°, half-round gutter with 2 mm opening and 0.8 mm walls, closed ends and a 2 mm outflow hole. Slated roofs: 46 × 130 mm, 30° pitch, 2.5 mm courses, 7 mm slates, no gutter. Chimneys: 7 × 7 mm, 16 mm tall, base cut at 30°, printed upside down. Change the height or the cut angle for other roofs. Downpipe: 2 mm × 110 mm solid rod. Lengthen it or add brackets. Pairs well with a printed wall or building shell that matches the 30° and 45° pitches.
Pare-chocs avant 141 mm pour MN82 LC79 à l'échelle 1/12, avec un bull bar pleine largeur et des cages de protection devant les phares principaux. Largeur du pare-chocs : 141 mm, profondeur 14 mm, hauteur 16 mm (estimées) Bull bar : montants à ±40 mm et ±65 mm, traverse haute à 37 mm, traverse basse Cages de phares à ±55 mm, 16 mm de large et 14 mm de haut Ouvertures d'antibrouillard et creux central conservés, sans grilles Matériau conseillé : PETG ou nylon