HPE - Heggs Performance Engineering

Following on from last weeks blog on design from imagery , you may not be surprised to see that we have a new product to share with you, our first in fact. After finding the need to replace a broken swing arm infill on a Yamaha TZ250 C chassis; a replacement was designed in CAD software. This has since been edited and fettled to produce an economical replacement for the 40 year old factory part. The key was to produce something that was faithful to the original part whilst still being economical to produce using 3D printing. We will now take you through the process of designing this product before getting down to the specifications we finished upon. Process  The original part was produced in solid ABS using injection moulding. This is ideal for producing large numbers of a product but the production run here is unlikely to breach a few hundred so 3D printing is most suitable.   This comes with its own challenges and advantages. The initial costs and subsequent low vo...

From an evening chat to having a custom product in your hand the following day. The kind of thing formula 1 teams strive for can be achieved in just a few focused hours. This is a long read following the process of a custom build for a customer. Wit h people at home more than usual of late, we all find ourselves procrastinating and tackling all of those big projects we have sat around our workshops. One such task was Andy Green's (of Racing Green) A ermacchi which he is building up to compete in classic motorcycle racing. Among many other things discussed; the side fairing brackets needed looking into. The existing nylon ones he has fitted were profiled to an old fairing and appeared to have been held on by string through the drill hole and the fairing attached by an M6 bolt threaded into the nylon. Functional but we could do better. Design requirements Cutting or drilling the frame was out of the question ruling out any bolted or split pinned attaching devices. T...