Work it out.
Calculators
Metal weight of sheet/part
Materialedata (massefylder, Engineering ToolBox / engineersedge.com)
Bend allowance (K-factor)
Pladebukning (bukketillæg via K-faktor / neutral akse)
Metal spinning – blank diameter
Geometri (overfladeareal-ækvivalens, D = √(d² + 4·d·h))
Truncated cone development (cone/funnel)
Geometri (keglestub-/frustum-udfoldning)
Cylinder – sheet length for the body
Geometri (neutral akse i midten af godset)
Pipe bending – developed length
Geometri (neutral akse i rørets centerlinje)
Electroplating – time
Faradays lov (elektrokemi, F = 96485 C/mol)
Thermal linear expansion
Materialedata (lineær udvidelseskoefficient)
Soldering/melting window for the base metal
Materialedata (smeltepunkter kobber/messing/bronze/tin + sølvlod/blødlod)
Material consumption including waste
Ratio arithmetic
Blank yield from sheet
Geometri (simpelt rækkegitter)
Pickling bath – acid treatment/pickle
Producentdata (Sparex-blandingsforhold) + forholdsregning
Density test – metal identification
Arkimedes' princip (hydrostatisk vejning)
Clinch nail – spacing and edge distance
Nagle-tommelfingerregel (deling 3–6×d, kantafstand ≥2×d)
Segment-bent pipe elbow – mitre angle
Geometri (segmentbukket rørknæ)
Funnel and hopper
Exact flat pattern
Edge profile — free bend profile in thin sheet
Exact flat pattern
Bent bracket
Exact flat pattern
Edge-bent panel
Exact flat pattern
Rectangular elbow
Exact flat pattern
Square-to-round transition
Approximate flat pattern
Rectangle-to-rectangle transition
Exact flat pattern
Truncated cone and reducer
Exact flat pattern
Nozzle in a shell
Exact flat pattern
Dished end cap
Approximate flat pattern
Tee and lateral
Exact flat pattern
Breeches piece
Exact flat pattern
Segmented pipe elbow
Exact flat pattern
Screw conveyor flight
Approximate flat pattern
Flat plate, flange and blank
Exact flat pattern
Tank support — saddle, legs and skirt
Exact flat pattern
Rectangular duct, straight section
Exact flat pattern
Cooker hood and process extraction hood
Exact flat pattern
Tub with fall and drain
Exact flat pattern
Channel and trough with fall
Exact flat pattern
Gutter — half-round, quarter-round and box
Exact flat pattern
Chimney flashing, 4-part
Exact flat pattern
Roof collar around a round pipe
Exact flat pattern
Vent cowl
Exact flat pattern
Part-cylindrical jacket
Exact flat pattern
Valley and ridge
Exact flat pattern
Window sill — bottom flashing
Exact flat pattern
Stair stringer
Exact flat pattern
Wheel arch repair panel
Exact flat pattern
Two-part valve cover
Exact flat pattern
Flange box
Exact flat pattern
Nozzle with tab collar on a flat wall
Exact flat pattern
Strip layout for a stamping die
Exact flat pattern
Cyclone and dust separator
Exact flat pattern
Five-pointed star
Exact flat pattern
Archimedean spiral
Exact flat pattern
Elliptical cone
Approximate flat pattern
Pipe-to-square transition
Approximate flat pattern
Orange-peel sphere
Approximate flat pattern
Spiral staircase
Exact flat pattern
Square tube cross
Exact flat pattern
Cable tray
Exact flat pattern
Roof surface covering
Exact flat pattern
Box and tray
Exact flat pattern
Tools that work in all subjects
Whatever your programme is called, these tools calculate the same — Pythagoras, area, percentages and units are not tied to one trade.
- Pythagorasa² + b² = c²Find the missing side, set out a right angle, check whether a room is square, and find the space diagonal.
- Area and perimeterm²Rectangle, triangle, trapezium, circle and composite shapes — area and perimeter.
- Volume and surface aream³ · lBox, cylinder, cone, sphere, pyramid, prism, pipe and frustum — also in litres.
- Percent%Percentage of, how many per cent, percentage change, discount and VAT.
- Scale and ratios1 : 50From drawing to reality, area and volume to scale, the rule of three and dividing in a ratio.
- Unit convertermm ↔ mFrom mm to km, Pa to bar and kB to GB — with the unit staircase.
- Time calculations and the clockt : minTime between two clock times, add time, and 1.75 h = 1 h 45 min for the timesheet.
- Slope and fall% · ° · 1:xFall from level to level, in per cent, per mille, degrees and mm per metre — and the height difference.
- Material consumption including wastem² + %Boards, paint, battens at c/c spacing and packs — for a composite surface or a whole room, with waste.