Stories with Tag knobs

• Eurorack Knob Idea

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  Posted: 2025-04-25 13:19:02

  Verbose tl;dr

  This blog post details a proposed design for a Eurorack synthesizer knob with an integrated display. The author, mitxela, outlines a concept where a small OLED screen sits beneath a transparent or translucent knob, allowing for dynamic parameter labeling and value display directly on the knob itself. This eliminates the need for separate screens or labels, streamlining the module interface and providing clear visual feedback. The proposed design uses readily available components and explores different display options, including segmented and character displays, to minimize cost and complexity. The post focuses on the hardware design and briefly touches on software considerations for driving the displays.

  This blog post by user "mitxela" details a conceptual design for a novel Eurorack synthesizer module knob with enhanced functionality and visual feedback. The author proposes a digitally controlled knob that addresses several perceived shortcomings of traditional analog potentiometers in the context of modular synthesis. Specifically, the proposed knob utilizes a high-resolution rotary encoder coupled with a circular display surrounding the knob's shaft. This display allows for far more nuanced parameter control and feedback than a standard knob.

  The core innovation lies in the display's ability to visually represent various aspects of the parameter being controlled. It can display the parameter's current value numerically, graphically represent its position within a defined range using a bar or arc visualization, and even indicate the parameter's modulation depth when influenced by other modulation sources. Furthermore, the proposed design incorporates color-coding capabilities, potentially allowing users to visually differentiate between different parameter types or to highlight modulation activity.

  Mitxela envisions the knob being controlled by a microcontroller, enabling a multitude of advanced features. These include the ability to switch between different display modes, customize the visual representation of the parameter, implement features like snapping to specific values or scales, and potentially even integrate with a computer for more complex control and automation scenarios. The author also explores the possibility of using haptic feedback to enhance the user experience.

  While acknowledging the increased complexity and cost compared to standard potentiometers, mitxela argues that the enhanced precision, visual feedback, and potential for advanced features offered by this digital knob concept would significantly benefit Eurorack users, particularly in complex patches where precise parameter control and clear visual feedback are crucial. The post concludes with a call for feedback and suggestions from the Eurorack community, indicating that this is an exploratory concept in its early stages of development.

  • Eurorack
  • Synthesizer
  • Modular Synthesizer
  • knobs
  • DIY
  • Electronics
  • Hardware
  • Music
  • MIDI
  • Interface Design
  • human-computer interaction
  • Open Source Hardware
  • 3D printing

  Summary of Comments ( 109 )
  https://news.ycombinator.com/item?id=43793288

  Verbose tl;dr

  Hacker News users generally praised the Eurorack knob idea for its cleverness and potential usefulness. Several commenters highlighted the satisfying tactile feedback described, and some suggested improvements like using magnets for detents or exploring different materials. The discussion touched on manufacturing challenges, with users speculating about cost-effectiveness and potential issues with durability or wobble. There was also some debate about the actual need for such a knob, with some arguing that existing solutions are sufficient, while others expressed enthusiasm for the innovative approach. Finally, a few commenters shared their own experiences with similar DIY projects or offered alternative design ideas.

  The Hacker News post "Eurorack Knob Idea" discussing the euroknob project at mitxela.com/projects/euroknob generated a modest amount of discussion, with several commenters expressing interest and offering their perspectives.

  One of the most compelling threads revolved around the practicality and cost-effectiveness of the proposed design. A commenter pointed out that injection molding the knobs, especially with custom inserts, could be quite expensive for small production runs. They suggested exploring alternative manufacturing methods like 3D printing for prototyping or smaller batches, even though it might not achieve the same level of precision and finish. This sparked further discussion about the potential trade-offs between cost, quality, and the scale of production.

  Another commenter questioned the choice of material, suggesting that using a material with inherent grip, rather than relying on knurling, might be more beneficial. They also raised concerns about the durability of the proposed design, particularly in the context of frequent use and potential wear and tear in a modular synthesizer environment.

  Several users expressed appreciation for the innovative approach to addressing the common problem of loose knobs in Eurorack synthesizers. They praised the author for tackling a real-world issue within the community. One commenter even suggested exploring the possibility of adapting the design for other types of knobs and controls beyond Eurorack modules.

  A few commenters shared their personal experiences with similar DIY solutions, mentioning using Sugru or other moldable adhesives to improve the grip of their existing knobs. This highlighted the existing demand for a more robust and elegant solution like the one proposed.

  While there wasn't an overwhelming number of comments, the discussion provided valuable insights into the potential challenges and benefits of the euroknob design, touching upon manufacturing processes, material selection, cost considerations, and the practical needs of the Eurorack community.

• The subtle art of designing physical controls for cars

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  Posted: 2025-02-11 19:15:02

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  Designing physical controls for cars is a complex balancing act. It requires careful consideration of ergonomics, intuitiveness, and aesthetics, all while adhering to safety regulations and cost constraints. Good design prioritizes frequently used controls, placing them within easy reach and providing clear tactile feedback. Minimizing driver distraction is paramount, achieved through logical grouping, clear labeling, and controls that can be operated by feel. The article highlights the importance of consistency across models, offering familiar touchpoints for returning customers, and thoughtful integration of new technologies, ensuring a seamless and enjoyable driving experience.

  The blog post "The subtle art of designing physical controls for cars" delves into the intricate and often overlooked process of crafting the tactile interface within a vehicle's cabin. It emphasizes that these controls, far from being mere buttons and knobs, are critical components that profoundly impact the driving experience, bridging the gap between human intention and machine action. The author meticulously unpacks the multiple layers of consideration that go into seemingly simple design choices.

  The discussion commences by highlighting the paramount importance of providing drivers with a sense of control and mastery over their vehicles. This sense of agency, according to the author, is intrinsically linked to the feedback received through physical interaction with the car's systems. The tactile nature of these interactions – the satisfying click of a button, the weighted resistance of a knob – provides crucial confirmation that commands have been registered and executed, bolstering the driver's confidence and connection to the machine.

  A significant portion of the article is dedicated to exploring the delicate balance designers must strike between offering a rich feature set and maintaining an intuitive, uncluttered control layout. The proliferation of in-car technology presents a challenge in this regard, potentially overwhelming the driver with an excessive array of buttons and switches. The author argues for a thoughtful approach, prioritizing essential functions and relegating less frequently used features to secondary menus or voice control systems, thereby minimizing cognitive load and distraction while driving.

  The importance of haptic feedback is reiterated and further elaborated upon. The author explains how carefully calibrated tactile responses can communicate a wealth of information to the driver without requiring visual attention. This subtle language of resistance, clicks, and textures can signal the successful activation of a feature, the current setting of a control, or even provide warnings about potential hazards. This allows the driver to remain focused on the road, enhancing safety and minimizing the potential for distraction.

  Furthermore, the blog post emphasizes the crucial role of ergonomics and anthropometrics in the design process. Controls must be placed within easy reach of the driver, their size and shape optimized for comfortable and intuitive manipulation. This necessitates careful consideration of the diverse range of human body types and limb lengths, ensuring that all drivers can comfortably and safely operate the vehicle's controls regardless of their physical characteristics.

  Finally, the author touches upon the aesthetic dimension of control design, acknowledging the importance of visual appeal and integration with the overall interior design of the vehicle. While functionality remains paramount, the aesthetic execution of these controls contributes to the perceived quality and desirability of the car, enhancing the overall ownership experience. In conclusion, the article paints a vivid picture of the meticulous and multifaceted nature of automotive control design, underscoring its profound impact on the driver's interaction with, and perception of, the vehicle.

  • car design
  • automotive design
  • physical controls
  • user interface design
  • UX design
  • ergonomics
  • human factors
  • Automotive Engineering
  • knobs
  • buttons
  • haptic feedback
  • driver experience
  • car interiors
  • instrument panels
  • dashboard design

  Summary of Comments ( 78 )
  https://news.ycombinator.com/item?id=43017010

  Verbose tl;dr

  HN commenters largely praised the article for its thoughtful approach to car interior design, particularly its focus on tactile feedback and intuitive placement of controls. Several users shared anecdotes of frustrating experiences with touchscreens and overly complex digital interfaces in modern cars, echoing the article's points. Some highlighted the safety implications of poor control design, emphasizing the importance of minimizing driver distraction. A few commenters offered additional considerations, like the need to account for users with disabilities and the challenge of balancing aesthetics with functionality. One commenter appreciated the article's historical context, mentioning older cars with well-designed controls. The overall sentiment was strongly in favor of prioritizing physical controls and thoughtful ergonomics over flashy but less practical digital interfaces.

  The Hacker News post "The subtle art of designing physical controls for cars" has generated a moderate discussion with several insightful comments. Many of the comments focus on the shift away from physical controls to touchscreens in modern cars and the negative impact this has had on usability and driver safety.

  One highly upvoted comment expresses a strong preference for physical buttons, emphasizing the importance of tactile feedback and the ability to operate controls without looking. The commenter argues that touchscreens demand too much visual attention, increasing the risk of distraction while driving. They also point out that physical buttons can be differentiated by feel, allowing drivers to make adjustments without taking their eyes off the road.

  Another compelling comment echoes this sentiment, highlighting the efficiency and safety of physical controls. The commenter specifically praises the design of older cars like the Saab 900, citing the clear labeling and logical layout of the buttons. They lament the trend towards complex menus and submenus in touchscreen systems, arguing that these interfaces are cumbersome and distracting.

  Several commenters mention the problem of "screen glare" making touchscreens difficult or impossible to see in certain lighting conditions. They contrast this with the consistent visibility of physical buttons.

  One commenter draws a parallel between the decline of physical controls in cars and the shift towards touchscreens in other areas, like airplanes. They suggest that this trend is driven by cost-cutting measures and a desire for sleek aesthetics, rather than a genuine improvement in user experience.

  Some commenters discuss the role of government regulation in ensuring the safety of car interfaces. They suggest that stricter guidelines are needed to prevent manufacturers from prioritizing form over function.

  A few commenters offer alternative solutions, such as incorporating haptic feedback into touchscreens to mimic the feel of physical buttons. Others advocate for a hybrid approach, combining the benefits of both physical and digital controls. One commenter specifically mentions the use of rotary dials as a good compromise, offering both tactile feedback and precise control.

  While not all comments are critical of touchscreens, the overall sentiment appears to be one of nostalgia for the simplicity and practicality of physical controls. The discussion highlights a growing concern among drivers about the increasing complexity and potential safety risks associated with modern car interfaces.