T15 Tools and machines: quick comparisons (1–4 marks) · Industrial Technology Timber

T15 · Tools and machines: quick comparisons (1–4 marks)

Fits: 2025 Q13, 2024 Q13, 2024 Q14, 2022 Q11, 2021 Q11, 2018 Q11, 2017 Q11, 2016 Q14 · 292 words · 7 chunks

T15.1 · Band v tableBand saw versus table saw: the band saw is used for curves, irregular shapes and resawing thick stock. The table saw is used for precise straight cuts, ripping along the grain and cross-cutting large boards and sheets (describe uses, not looks: NESA 2025).T15.2 · Mitre sawsMitre versus compound mitre saw: a mitre saw pivots to cut angles across the face of a board, such as 45° picture-frame mitres. A compound mitre saw also tilts (bevels), so it can cut a mitre and a bevel at the same time, for example for crown mouldings or splayed legs.T15.3 · RouterRouter features: choose a plunge router for cutting stopped grooves and mortises in the middle of a board; a fixed-base or trim router is lighter for edge work. Variable speed lets large-diameter bits run slower to prevent burning, and a 12.7 mm (1/2") collet holds larger bits more rigidly than 6.35 mm (1/4").T15.4 · Dress + miscIndustry machine to dress timber: a planer/jointer (to face and edge) and thicknesser, or a four-sided moulder. Rebate for glass: router. Internal curve in plywood: jigsaw (or scroll saw).T15.5 · ChiselRestoring a chisel edge: grind the bevel at about 25° on a wet grinder or a bench grinder (dipping it in water to stop overheating and losing temper). Hone a micro-bevel at about 30° on an oil or water stone, then remove the burr on the back with a strop or fine stone.T15.6 · SquareChecking a frame for square without a square: measure both diagonals with a tape; if they are equal (and opposite sides are equal) the frame is square.T15.7 · DrawerMeasuring for a drawer: measure the carcase opening's internal width, height and depth at several points. Subtract the clearance needed for the drawer runners (from the runner manufacturer's specification) so the drawer fits and slides freely.

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