Pancyprian TS Wood & Furniture III common mistakes
Pancyprian TS Wood & Furniture III · Understand the traps and how to avoid them.
When asked to identify a timber species from a written description, the candidate gives a single trade name (e.g. "mahogany") without stating whether it is a softwood or hardwood, its typical density range, and one working characteristic such as blunting of tools or movement in service.
Candidates memorise a list of names and a colour, but exam questions in this domain are usually framed around how the material behaves in the workshop, so a name alone cannot earn the marks allocated to properties and uses.
What to do instead
Build a one-page table per species with columns: botanical name, softwood/hardwood, density band, movement/shrinkage, durability class, machining and blunting behaviour, typical uses. Practise answering with three sentences: identity, property, consequence for the workshop.
The candidate designs a cutting list and then writes the finished sizes into the drawing, forgetting to add machining allowance for planing, saw kerf, and end trimming, so the completed component is undersize or the drawing does not match the list.
Working from the finished size feels natural and the allowance is invisible on paper; candidates also forget that rough-sawn stock must be bought oversize and that a saw cut removes material on both sides of the blade.
What to do instead
Always work in a fixed sequence: finished size, add joint and machining allowance, add saw kerf, then order stock. Write the allowance as an explicit column in the cutting list and check one component end-to-end before applying the method to the whole job.
In technical drawing answers, the candidate produces a pictorial or freehand sketch where a formal orthographic view is required, and omits hidden detail lines, centre lines, and a title block with scale and projection symbol.
Candidates are more confident drawing in 3D and underestimate how strictly the marking scheme rewards correct projection, line types and standard conventions rather than artistic quality.
What to do instead
Drill first-angle and third-angle projection with the same simple object until the view placement is automatic. Keep a checklist beside every drawing: outline, hidden, centre, dimension with arrows, projection symbol, scale, title block. Practise under time pressure so the checklist becomes habit.
The candidate names a hand tool but cannot describe its correct use, maintenance, or the sharpening angle and procedure, for example stating that a chisel is sharpened on a grinder only, or that a plane iron is honed with the bevel flat on the stone.
Tool knowledge is often learned by watching rather than by understanding geometry, so the relationship between bevel angle, honing angle, and the function of the tool is not internalised.
What to do instead
For each core tool, write the bevel angle, the honing procedure, the common fault (rounded bevel, dubbed edge, out-of-square blade) and the correction. Practise on a stone and describe the motion aloud as if explaining to an examiner.
When asked to set up a machine, the candidate lists the operations in the wrong order or omits the safety and verification steps, for example adjusting the fence after setting the blade depth, or failing to state that the guard and riving knife must be checked before switching on.
Candidates describe what the machine does rather than the setting sequence, and safety checks are mentally separated from setup instead of being part of it.
What to do instead
Learn each machine as a numbered setup routine ending in a test cut on scrap. Include isolation of power, blade or cutter selection, depth and fence setting, guard and riving knife position, push stick availability, and a verification cut. Recite the routine for planer, thicknesser, circular saw bench, spindle moulder and band saw.
The candidate draws a joint and labels it correctly but cannot justify the joint choice for a given application, or gives dimensions that are not in proportion to the stock thickness, such as a tenon one third of the width but with no shoulder or haunch described.
Joints are learned as pictures rather than as load paths, so the candidate cannot connect the joint geometry to the forces, the timber species, or the available glue area.
What to do instead
For each joint family, record where the load acts, the glue surface area, the weakening effect on the member, and one typical furniture application. Practise proportion rules (tenon thickness about one third of rail thickness, haunch for wide rails) with a sketch and a one-sentence justification.
The candidate answers a finishing question by naming a product without giving the preparation sequence, the reason for the chosen abrasive grit progression, or the recoat and drying conditions, and mixes incompatible products such as a shellac polish under a two-pack lacquer without mentioning a barrier coat.
Finishing is treated as product knowledge rather than as a process, and compatibility between coats is rarely taught explicitly, so the candidate does not see the failure mode coming.
What to do instead
Write finish schedules as numbered steps: surface preparation and grit sequence, sanding sealer or filler, stain, barrier or isolator coat if needed, topcoats with interval and conditions, rub-out. Learn which systems are compatible and test on an offcut before committing.
In furniture design answers, the candidate describes appearance only and omits ergonomic data, structural rationale, and the manufacturing constraints, so a chair design is presented without seat height, seat depth, back angle, or an explanation of how the frame resists racking.
Design is associated with drawing and taste, and candidates do not realise that marks come from justifying dimensions against anthropometric data and from showing that the piece can actually be made and will not fail.
What to do instead
For each furniture type, memorise a small set of key dimensions (seat height, seat depth, back rake, table height, knee clearance) and always pair a design answer with one structural statement and one manufacturing statement. Structure the answer as function, structure, production, aesthetics.
The candidate treats upholstery and interior fittings as soft furnishing only, omitting the frame, webbing or elastic suspension, stuffing build-up, and the fitting tolerances for doors, drawers and hinges, or gives a hardware specification without the associated clearance and adjustment allowance.
This domain is often the least practised, and candidates rely on general knowledge rather than on the sequence of building up a seat or on the millimetre clearances that make a fitted component work.
What to do instead
Learn the upholstery build-up as a layer sequence from frame to cover, with the purpose of each layer. For fittings, record the standard clearances for doors and drawers, hinge cup boring distances, and slide allowances, and apply them to a small practice carcass.
The candidate answers a costing question with a single selling price and no breakdown, omitting material wastage, labour time for setting and finishing, overhead recovery, and the difference between cost and price; quality control answers similarly list inspection without stating the tolerance or the measuring instrument.
Costing is attempted from intuition and the candidate does not have a template, while quality control is treated as a general attitude rather than as specified tolerances checked with named instruments.
What to do instead
Use a fixed costing template: material with wastage percentage, direct labour hours by operation, overhead percentage, margin, then price. For quality, always state the dimension, the tolerance, the instrument, and the acceptance criterion, and practise on a completed joint or carcass.