A 2.4 Metre Glass Sculpture in a Busy Courtyard
Level 2 sculpture candidate Tama proposes a 2.4 m high work for the school courtyard: a welded steel armature with 14 sheets of 4 mm glass slotted between the ribs, lit from below. His 24 cm maquette, made from card and acetate, is well resolved and shows a twisting sequence of ribs. He has made one full-size joint test in pine, which held under hand pressure. The courtyard is used daily by students from Years 9 to 13, and the work would stand on a paved area with no fixing points. Tama's workbook shows research into site-responsive sculpture and an established sculptor who uses industrial materials, but contains no structural calculations, no risk assessment, no installation plan and no decommissioning plan. The HOD must decide whether to approve fabrication in the five weeks before external submission, and what evidence the standard needs. Tama has a budget of $180 and access to the technology workshop.
1. Should the HOD approve fabrication? Give a conditional decision and explain the factors that outweigh Tama's strong maquette.
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Decision: do not approve the work as proposed; approve a modified version with conditions. The quality of the maquette is not the issue. The issue is that the proposal cannot be built, installed and removed safely within the constraints.
Factors that outweigh the maquette. Four millimetre glass at 2.4 m in a courtyard used daily by Years 9 to 13 is a serious hazard if it breaks or if the armature moves. There are no fixing points on the paved area, so the work could be pushed or blown over. The pine joint test does not prove a welded steel and glass joint, because the material, load and connection are different. The budget of $180 is unlikely to cover steel, glass, cutting, welding consumables and lifting. Five weeks leaves no time for engineering review, fabrication, testing and installation.
Conditions for approval. Replace glass with polycarbonate or laminated safety glass; reduce height or design a anchored base plate; obtain a structural check from the technology teacher or an engineer; produce a written risk assessment and installation sequence; name a supervisor for all workshop and site work; plan decommissioning. A 1.2 m free-standing version using the same rib logic would preserve the idea and be achievable.
2. Explain how the maquette functions as evidence and where it cannot substitute for full-size testing.
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What the maquette proves. It shows that Tama can conceive and resolve a three-dimensional idea: the twisting rib sequence, the spacing, and the relationship between the frame and the infill panels. It is evidence of spatial thinking, proportion and joinery logic at small scale. That is valuable for the standard.
What it cannot prove. A card and acetate maquette does not show how steel behaves under load, how glass tolerates movement, how the base is fixed, or how the work reads at 2.4 m. Gravity, wind and public contact scale up in ways that a 24 cm model cannot predict. The pine joint test is a start, but it tests a different material and connection, so it does not validate the proposed joint.
What would count as testing. A full-size section of the armature with the actual joint and infill material, a base plate test on the paved surface, and a dry-run installation with the lifting method. Photographs and measurements of those tests belong in the workbook.
Why it matters. The assessor needs to see that Tama understands the relationship between scale, material and site, not only that he can make a nice model.
3. What should Tama add to his workbook to show understanding of sculpture conventions, and why does each item matter for the grade?
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Site analysis. Annotated photographs or sketches showing sightlines, foot traffic, sun direction, surfaces and fixings. Why: site-responsive sculpture depends on reading the site, and the assessor needs to see that the work is not a studio object dropped outdoors.
Material tests. Samples of polycarbonate or laminated glass, edge treatments, fixing methods and a steel offcut with the proposed weld. Why: material properties are a sculpture convention. Testing shows that Tama's choices are based on evidence, not preference.
Structural sketch. A simple diagram of loads, base plate, anchor and wind pressure, even if approximate, checked by the technology teacher. Why: at 2.4 m, structural logic is part of the work's meaning and safety.
Risk and installation plan. A written sequence for fabrication, lifting, fixing, daily inspection and removal. Why: public sculpture carries responsibilities that the standard expects students to recognise.
Reflection on the established sculptor. Two paragraphs on what Tama has borrowed and what he has changed. Why: it shows critical understanding rather than imitation, and it distinguishes his work from its source.