Welding, fabrication, and machining metal.
Tool ·
Size a shop's compressed air: the SCFM your tools need with their duty cycles, your compressor against it with tank pump-down and recovery times and starts per hour, pipe pressure drop for copper, black iron, aluminium or PEX-AL-PEX (Darcy–Weisbach and a rule of thumb), how much water the air drops and its dew point, and the motor's current and circuit.
Tool ·
Metal casting for a hobby foundry — an alloys table with pouring temperatures, shrink and hazards; metal needed from a volume, an STL or a pattern's weight (the wax-to-metal rule) with crucible size and number of melts; sand-casting allowances, Bernoulli choke area, pouring time, gating ratios and Chvorinov risers, flask and sand mix; investment powder and water and wax or PLA burnout schedules on a graph; lost foam; the energy, fuel and time to melt; a crucible-furnace build; and a printable safety checklist.
Tool ·
Icosahedral geodesic domes 1V–6V (class I) — whole spheres, 3V 3/8 and 5/8, 2V/4V/6V halves, or any hub ring — with strut types, chord factors, lengths and counts, hub types and the angles at them, dihedral angles, floor size, height, surface and volume, panel templates (fabric seam allowance or ply edge bevels), a cut list packed into your stock lengths, and a 3-D preview coloured by strut; plus Platonic solids and the truncated icosahedron as fold-up lamp-shade templates.
Tool ·
Primary and micro-bevel angles for chisels, plane irons, gouges, knives, axes, scissors and drills by steel (O1, A2, PM-V11, D2, HSS, carbon, VG-10, stainless); a honing-guide projection calculator with the geometry derived and calibration from your guide's chart; a printable projection jig and laser-cut angle gauge (SVG and DXF); JIS / FEPA / micron grit conversion; and knife-sharpener rod angles.
Tool ·
Nest DXF and SVG parts (or built-in shapes) true-shape onto sheets and remnants — quantities, gap and kerf, rotations, mirroring, grain lock, small parts inside holes — with a genetic search you can stop at any time, utilisation and cut length, and each sheet exported as SVG or R12 DXF with the original arcs.
Tool ·
Plan a workshop's circuits — US 120/240 V split-phase or UK/EU 230/400 V three-phase — with breakers, wire and run lengths, and the machines on each (table saws, dust collectors, compressors, welders, kilns, lasers, 3-D printers, heaters, lights): what can run at once under the 80 % continuous rule, which motor starts will trip the breaker, voltage drop running and on start, three-phase currents, and a load schedule to print. A planning aid, not a substitute for an electrician.
Tool ·
Wrap-around templates for coping (fish-mouthing) round tube onto round or box-section tube — any angle down to 15°, offset branches, and several branches into one node fitted against each other — cut to the inside, mean or outside diameter; mitres for round, square and rectangular tube; hole-saw sizes, notcher angle, offset and clocking for each pass; a 3-D preview; printed at real size (tiled PDF or print), SVG and DXF.
Tool ·
Anodizing and electroplating numbers: current from current density and the part's area, anodizing time by the 720 rule and a Faraday estimate, Type II / III ranges, dye and seal notes; plating mass, thickness and time by Faraday's law for copper, nickel, zinc, tin, silver and gold; surface area from simple shapes or an STL — with the safety notes, and no cyanide.
Tool ·
Beam solver for simply supported, cantilever, propped, fixed and overhanging beams with point, uniform, triangular and moment loads — shear, moment, slope and deflection diagrams, stresses from a section-property calculator, steel, aluminium, wood and 3D-printed materials — plus Euler and Johnson column buckling and a drawable 2-D truss solver with tension, compression and member buckling.
Tool ·
ISO 286 hole and shaft limits computed from the standard — H7/g6, H7/k6, H7/p6 or any class to 500 mm — with clearance, transition or interference drawn as tolerance zones; a size-range table; the ANSI B4.1 classes; thread dimensions for metric, UNC/UNF, BSP and NPT; a thread identifier; ISO 273 clearance holes; and the IT grade your 3D printer really holds.
Tool ·
Change gears for screw cutting on any lathe — simple and compound trains from your own gear set, the 127-tooth gear for metric on an inch leadscrew, and the error in ppm — thread-cutting passes and the 29.5° compound, clean knurling diameters, taper turning and Morse tapers, hardening and tempering O1, A2, D2, W1, 1045 and 4140 with temper colours, and a casting calculator for shrinkage, metal to melt and crucible size.
Tool ·
Turn an STL, 3MF, OBJ or STEP part into what you need to cast it — pick the process first: a printed rigid mould (automatic parting, keys, sprue, risers, vents, bolts, inserts), a silicone mould (a fitted pour box, a printed master, or brush-on silicone in a printed mother mould), a plaster slip-casting mould with printable case moulds, or a metal-casting pattern (lost-PLA investment pattern with sprue, feeder and flask, or a split sand pattern with match plate and core box) — with step-by-step instructions and quantities, exported as STL, 3MF, OBJ, STEP and DXF, laid flat on your printer's bed.
Tool ·
X/Y coordinates for bolt circles, partial arcs, rows, and grids — with a drawing, chord distances, CSV export, and a ready-to-run G81/G83/G73 drilling program.
Tool ·
Tightening torque and clamp force for metric (coarse and fine) and UNC/UNF bolts in ISO, SAE, socket-head, and stainless grades — by nut factor or by thread and under-head friction — plus the preload a given torque really gives, and a table for the whole series.
Tool ·
Involute spur gears with a live meshing preview, contact ratio and undercut checks, and SVG/DXF export; gear-train search for any ratio; and length, centre distance, and speed for timing belts (GT2, HTD, T, MXL, XL, L), V-belts, and roller chain.
Tool ·
Weight and cost of bar, tube, sheet, and structural shapes — round, square, hex, flat, tube, angle, channel, I-beam, tee — in 27 metals and plastics, plus steel, galvanised, stainless, and aluminium gauge tables.
Tool ·
Bend allowance, bend deduction, and setbacks; K-factors from a material table or a test bend; multi-bend flat patterns with a drawn profile and bend-line positions; press-brake tonnage and V-die sizing.
Tool ·
Spindle speed, feed rate, chip load, metal removal rate, and power for milling (with radial chip thinning), turning, drilling and reaming, and tapping — 18 materials with HSS, carbide, and coated carbide.
Tool ·
Helical compression, extension, and torsion springs — rate, stresses with the Wahl and curvature factors, allowable stress from the wire's real strength, solid height, buckling, natural frequency, hook stress, arbor clearance, and coils for a target rate.
Tool ·
Tap drill sizes with % thread engagement for metric, UNC/UNF, BSP and NPT (cutting and forming taps); clearance holes, counterbores, and countersinks; a searchable number/letter/fractional/metric drill chart; pitch diameter and three-wire measurement.
Tool ·
Starting settings for MIG, TIG, and stick welding by material and thickness; electrode class decoder; filler metal for same and dissimilar metals; heat input in kJ/mm; joint types and weld symbols.