Yamaha YDS 2 & Yamaha YDS 3 Brake Bracket Aluminium Casting (Part 2)

Background: This is an update to an ongoing project to Reverse Engineer and re-manufacture brake and clutch brackets with levers for Yamaha YDS 2 and YDS 3 motorcycles. Creation of Digital Twins of the original parts and manufacture of the patterns for these were covered in a previous post. A few weeks ago Harling Foundries …

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Rex’s Speed Shop Kawasaki Triple Stator

Rex’s Speed Shop (RSS) had a requirement to create a digital twin of some of their products. This digital information could then be used to manufacture parts, produce installation and instruction manuals, integrated parts catalogues and other promotional materials. RSS manufactured the physical parts but didn’t have all the digital twin data. As part of ongoing …

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Yamaha YDS 2 & Yamaha YDS 3 Brake Bracket Aluminium Casting (Part 1)

Background: Yamaha YDS 2s and YDS 3s were sold in the early to mid 1960s. These bikes, had a cable operated clutch and front brake. They used very similar brake bracket castings for both but were sided due to the brake lever pivot bolt holes. There is a slight difference between the YDS 2 and …

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Yamaha XT 600 Cylinder Reverse Engineering

Background: This project started out as part of a Yamaha XT 600 – 660 ‘Frankenstein’ motored (bottom end from an XT660 but top end from an XT600 as we wanted to keep the air cooled look) flat track framer bike. The original intention was to cast a new cylinder with modified, more symmetrical, fins that …

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1929 Douglas DT5 Speedway Frame

Background: Apparently, in 1923, sport of Speedway began in Maitland, Australia. However, other reports claim the sport began in South Africa in 1907.  American Board Track racing, held on oval tracks made from timber planks, some up to two miles in length, was certainly a precursor to Speedway. Board Track racing was dangerous and, in …

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