OCR As Design Engineering Paper 1 Mark Scheme

Download the official OCR AS Level Design and Technology: Design Engineering H004/01 Principles of Design Engineering mark scheme for the June 2025 examination series. This examiner-authentic OCR PDF contains complete marking guidance, worked engineering calculations, model answers, indicative content, level-of-response descriptors and official OCR examiner assessment criteria for the AS Principles of Design Engineering paper.

The mark scheme provides detailed examiner-approved answers for technological developments in games consoles, environmental impacts of gaming accessories, stakeholder testing, structural reinforcement in games controllers and product-testing methodologies. Students can study official OCR guidance for probability calculations, engineering-mathematics questions, CAE methods, bespoke prosthetic manufacture and industrial-manufacturing systems.

Engineering-calculation sections contain fully worked solutions for energy and power calculations, trinket-tray volume calculations, scaling-ratio mathematics, triangulation trigonometry, force calculations using Newton’s second law and statistical data analysis involving frequency tables and bar charts. The document additionally includes complete guidance for embedded microcontroller systems, MOSFET-controlled motor circuits, ring-and-pinion gear systems and mechanisms converting rotational motion into reciprocating motion.

The mark scheme explains OCR’s official level-based marking approach for extended-response questions involving environmental impacts of gaming accessories and computer-controlled industrial machinery. It also contains detailed indicative content for automated material-handling systems, robot arms, CNC manufacturing, helical sharpening-blade production and industrial quality-control systems.

Students can use this mark scheme to understand exactly how OCR awards marks for engineering calculations, technical communication, manufacturing analysis, systems thinking and evaluative discussion. OCR additionally explains official marking principles including benefit of the doubt, contradictory responses, follow-through marking, annotation symbols and level-of-response assessment methods used during live examination marking.

This OCR H004/01 June 2025 mark scheme is essential for self-marking, engineering-calculation practice, electronics revision, manufacturing-process analysis and understanding examiner expectations for high-band OCR AS Design Engineering responses. Perfect for students preparing for the 2026 OCR examination series, teachers designing mock assessments and tutors supporting OCR AS Design Engineering revision. Pair it with the matching OCR H004/01 June 2025 question paper for complete examiner-guided preparation and OCR-standard assessment practice. Fully compatible with desktop, tablet and mobile PDF viewing.

This document is designed for OCR AS Design Engineering students preparing for the 2026 examination series, especially candidates studying engineering mathematics, manufacturing systems, electronics, product design and embedded systems. It is particularly useful for learners aiming to improve technical problem solving, engineering calculations, evaluative discussion and understanding of OCR examiner expectations.

It is also highly valuable for teachers, tutors, revision-course providers and independent learners who require official OCR marking guidance, worked solutions and assessment criteria for classroom teaching, mock examinations, electronics analysis and targeted OCR Design Engineering revision.