https://cosnfx.store/fab/news/Notes + guides from Fabrication Benchen https://cosnfx.store/fab/news/living-hinges.htmlhttps://cosnfx.store/fab/news/living-hinges.htmlThu, 05 Nov 2026 15:25:40 GMTA living hinge is a lattice of links that bend by twisting: Fenner's math (w·cos θ + T·sin θ per link), the app's 23-link worked example, and the honesty labels on the tuned values. https://cosnfx.store/fab/news/finger-joints.htmlhttps://cosnfx.store/fab/news/finger-joints.htmlThu, 05 Nov 2026 15:25:40 GMTThe odd-fingers rule (100 mm at a 10 mm target = 11 fingers of 9.09 mm), clearance as c/4 per boundary, the lid play sourced to boxes.py's 0.05 × T, and the hinged lid's pin math. https://cosnfx.store/fab/news/engraved-photos.htmlhttps://cosnfx.store/fab/news/engraved-photos.htmlThu, 05 Nov 2026 15:15:23 GMTLine interval as DPI (0.1 mm = 254 DPI), the BT.601 luma weights, four error-diffusion kernels by name (Floyd–Steinberg, Jarvis, Stucki, Atkinson), and the per-material presets labelled as starting points. https://cosnfx.store/fab/news/kerf-measure.htmlhttps://cosnfx.store/fab/news/kerf-measure.htmlThu, 05 Nov 2026 15:15:23 GMTThe beam burns K/2 from each edge; cut ten squares and the kerf falls out of the arithmetic (K = S − M/N, worked to 0.16 mm); the printed fit gauge runs T − 0.25 to T + 0.20 mm and answers the clearance directly. https://cosnfx.store/fab/news/never-cut-list.htmlhttps://cosnfx.store/fab/news/never-cut-list.htmlThu, 05 Nov 2026 15:15:23 GMTPVC, vinyl, polycarbonate, ABS, HDPE, polystyrene, fiberglass — the materials that never go under a diode laser, what the makers' tables carry, and the joules-per-millimetre rule that predicts fire. https://cosnfx.store/fab/news/pen-language.htmlhttps://cosnfx.store/fab/news/pen-language.htmlThu, 05 Nov 2026 15:15:23 GMTThe vocabulary of drawing in plastic: the ~0.7 mm bead a hot pen lays, the lanes that let colors butt, the infill that stiffens, tack-downs, anchors, and the numbered panel seams the pen welds. https://cosnfx.store/fab/news/test-grid.htmlhttps://cosnfx.store/fab/news/test-grid.htmlThu, 05 Nov 2026 15:13:14 GMTSettings are inherited, work is local: the maker's parameter rows (Creality, xTool), the checksums that keep them honest, and the test-grid method that turns a borrowed row into your own. https://cosnfx.store/fab/news/welcome.htmlhttps://cosnfx.store/fab/news/welcome.htmlThu, 05 Nov 2026 15:12:02 GMTWelcome to the machines bench — what is free here, and what the apps add. https://cosnfx.store/fab/news/spool-weight.htmlhttps://cosnfx.store/fab/news/spool-weight.htmlThu, 05 Nov 2026 15:12:02 GMTWeigh the spool, read the metres: 1.75 mm PLA runs about 2.98 g per metre (a kilo ≈ 335 m), and 2.85 mm weighs about 2.6× per metre — the app's tare-list math in the browser. https://cosnfx.store/fab/news/first-layer.htmlhttps://cosnfx.store/fab/news/first-layer.htmlThu, 05 Nov 2026 15:12:02 GMTThe first layer decides the print: a clean bed, a level build plate, the right squish, a slower pass, and dry filament — the habits the printing communities agree on, plus where wet material shows up first. https://cosnfx.store/fab/news/scrap-nesting.htmlhttps://cosnfx.store/fab/news/scrap-nesting.htmlThu, 05 Nov 2026 15:12:02 GMTPhotograph the laser bed with a bank card in frame (85.60 × 53.98 mm, ISO/IEC 7810 ID-1), mark four corners for a transform accurate to 0.2 mm on a test photo, and nest the next job on the offcuts — with the app's own honesty about photo error. https://cosnfx.store/fab/news/wet-filament.htmlhttps://cosnfx.store/fab/news/wet-filament.htmlThu, 05 Nov 2026 15:12:02 GMTThe hiss at the nozzle is steam: what moisture does to a melt, why the print goes stringy, the drying table the app's timers run (PLA 50 °C · PETG 65 °C · ABS 80 °C), and the warm-bag rule that ends the cycle.