The Next Byte Podcast · 25 Apr 2023 · 20m
Daniel and Forbode discuss a Columbia Engineering project that 3D printed a multi-ingredient cheesecake, leveraging FDM and SLS technologies to solve structural collapse issues. They analyze the engineering challenges of managing different material viscosities and the iterative design of support structures using graham cracker walls. The hosts highlight the potential for reducing food waste and creating palatable pureed foods for patients with swallowing disorders, while noting the current limitations of texture and complexity.
makers and hobbyists
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Jimmy Diresta, Bob Clagett, and David Picciuto discuss their experiences with 3D printing and CNC machining. They cover specific technical challenges, including extruder failures on a Delta Go printer, bed adhesion issues, and the design of a trike from found materials. The conversation explores the practical applications of 3D printing, such as making cookie cutters and camera accessories, while debating its role in modern manufacturing versus traditional methods.
Peter Griffin, a consultant at Slalom, discusses his journey into embedded systems and hardware design while building custom operant boxes and elevated zero mazes for his wife Gwen’s neuroscience lab. He details the mechanical engineering challenges of 3D printing, specifically dealing with tolerances and transitioning from Tinkercad to SolidWorks to ensure parts fit together reliably. Griffin also explains his strategy for making these devices accessible and reproducible through open-source designs and drop-shipping, while navigating the complexities of supply chain and manufacturing for non-standard components.
Hackaday editors Tom Nardi and Mike Szczys review weekly hacks, including a discussion on the trade-offs between resin and FDM 3D printing, a silicone injection molding machine, and a mechanical keyboard wiring project. They also cover a Raspberry Pi-based Sidekick clone, a 3D-printed thermal insert press, and a hydrogen-line telescope. The episode highlights the complexity of moving from FDM to resin processes, emphasizing the need for batch printing and post-processing care. Additionally, they discuss off-world cement testing on the ISS and a DIY wire-bending robot.
Greg Paulsen, Director of Applications, Engineering and Marketing at Xometry, discusses the complexities of rapid prototyping and the transition to mass production. He details the pros and cons of various 3D printing technologies, including filament-based FDM, powder bed fusion (SLS, MJF), and resin-based methods (SLA, DLS), explaining how each affects design constraints and scalability. Paulsen highlights common hardware horror stories, such as designing for 3D printing without considering injection molding requirements, leading to prohibitive costs and tooling issues. He emphasizes the importance of clear communication with manufacturers and using AI-driven tools to optimize designs for manufacturability early in the process.
Hackaday editors Elliot Williams and Tom Nardi discuss the upcoming Hackaday Berlin event and the return of the Voya badge. They review a collection of 21 printable sundials, analyze how filament color affects 3D print strength, and explore Michael Gardi's replica of the MCM-70E computer. The episode concludes with a look at an Arduino-based SDI video generator and the unexpected internet connectivity checks performed by smart ovens.
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