Work it out.
Calculators
Wood moisture
Procentregning · veje-tørre (DS/EN 13183-1)
Timber shrinkage across the width
Lineær proportion · TRÆfakta (Træ.dk)
Organ pipe – pitch
Akustik · stående bølger (resonansrør)
Weight of timber
Densitetsberegning · Træ.dk (træarternes densitet)
Adhesive consumption for surface bonding
Producentdata · Titebond teknisk datablad
Clamping force when gluing
Producentdata · Titebond teknisk datablad (psi-anbefaling)
Oil consumption for surface treatment
Producentdata · Osmo teknisk datablad
Wood dust relative to the limit value
Arbejdsmiljø · Arbejdstilsynets grænseværdi for træstøv (1 mg/m³)
Permitted time for noisy machine work
Arbejdsmiljø · Arbejdstilsynets støjbekendtgørelse (3 dB-reglen)
Organ pipe – scale (diameter scale)
Orgelbygning · Töpfers Normalmensur
Organ pipe tuning at temperature
Akustik · lydhastighed ved temperatur + cent
Alloy for organ metal
Orgelbygning · legeringstyper (tin/bly)
Veneer consumption for a surface
Geometri/Forholdsregning
Mitre angle for a polygonal frame
Geometri (regulær polygon)
Sheet consumption for a project
Forholdsregning · standard pladeformat 2440×1220 mm
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.