Bicycle Modeling

Bicycle Modeling

Bicycle Modeling Modeling a vintage 1980’s Supercycle bicycle using Solidworks software. In order to become more proficient in general CAD modelling, I deconstructed major components of my commuter bicycle and modeled them into major sub-assemblies. For added practice, components that would be interfacing such as bearings were given realistic dimensioning and tolerancing that would result in the types of desired fits for the given application (e.g. sliding fit, forced fit, etc.). Repeatedly disassembling and reassembling the bicycle also exemplified the importance of a design’s ease of assembly, especially in the case that it is mass produced. The vintage logos and stickers on the bicycle were also recreated via Adobe Photoshop to add to the model’s authenticity. Frame Every aspect of the frame sub-assembly, from the embroideries to the decals were taken into account. From here, each of the other bicycle sub-assemblies would stem from this when forming the bicycle’s final assembly. Within the head tube exists the upper and lower bearing races, which contain their respective retainers and ball bearings. Wheel Modeled below is an XRim X404 front wheel. The first image shows an exploded view of how the retainer, bearings, bearing covers, threaded rod, inner locking nut and outer jam nut all fit into the wheel’s hub. Again, for added detail, the tire’s tread design was included on its outer...
3D Printer Design

3D Printer Design

3D Printer Design Designs are conceptualized to create a functional, budget-conscious 3D printer. In the spring of 2014, Nathan and a team of three colleagues at UofT were given the task of conceptualizing a relatively inexpensive 3D printer as part of a course project. The primary function of any hobbyist PLA or ABS plastic 3D printer is to extrude successive layers of molten material, beginning at the base and finishing at the top, to form the desired 3D-printed object. His team researched existing 3D printing technology, both currently on the market and hobbyist-created. As somewhat of a product benchmarking exercise, this allowed the team to get a gauge on the types of strategies that hobbyists and companies used to manufacture their components, as well as the types of features that the average printer might possess. Nathan began by selecting the materials to be used and each individual component’s dimensions such that they adhered to operational, cost and tolerancing constraints. Prior to any time spent on CAD, how individual components would interface and be assembled was fleshed out through the use of rough sketches. Nathan then modeled and assembled each of the design’s components using Solidworks software. Special consideration went towards material weight, speed & fluidity of movement, and every decision’s inevitable material and production costs. Nathan worked with his teammates to form tolerancing and functional calculations validating that the design would perform to the degree required, and a final conceptual product design was soon reached. The team collectively presented a final report, where the utilization of individual components, materials, processes, etc. were discussed and...