Cutfoldtemplates.com offers a vast collection of downloadable templates for creating paper mechanisms. These range from simple pop-up cards and flexagons to complex geometric constructions, kinetic sculptures, and automata. The site provides free PDF templates, often accompanied by video tutorials, enabling users to explore the fascinating world of paper engineering and create intricate moving paper models. It serves as a resource for both beginners and experienced paper crafters, offering a wide array of designs with varying complexity and skill requirements.
A lonely giant sunfish at the Aquamarine Fukushima aquarium in Japan, who kept mistaking divers for jellyfish (its usual prey), has been given cardboard cutouts of humans for company. The cutouts, placed at the tank's viewing window, aim to acclimate the sunfish to human presence and prevent it from repeatedly bumping into the glass, injuring itself. Staff hope this will help the fish distinguish between humans and its food, improving its wellbeing in captivity.
HN users generally found the story of the lonely sunfish heartwarming. Some expressed skepticism that the fish recognized the cardboard cutouts as "friends," suggesting its behavior was more likely driven by curiosity or a general attraction to stimuli. Others pointed out the anthropomorphic nature of the narrative, cautioning against projecting human emotions onto animals. A few commenters shared personal anecdotes of keeping fish, emphasizing the importance of enrichment and speculating on the fish's potential loneliness. Several found the cardboard cutout solution clever and amusing, with one user jokingly suggesting adding a QR code for donations. The overall sentiment leaned towards appreciation for the aquarium staff's effort to improve the fish's well-being.
Designer and maker Nick DeMarco created a simple yet effective laptop stand using just a single sheet of recycled paper. By cleverly folding the paper using a series of creases, he formed a sturdy structure capable of supporting a laptop. The design is lightweight, portable, easily replicated, and demonstrates a resourceful approach to utilizing readily available materials. The stand is specifically designed for smaller, lighter laptops and aims to improve ergonomics by raising the screen to a more comfortable viewing height.
Hacker News commenters generally expressed skepticism about the practicality and durability of the single-sheet paper laptop stand. Several questioned its ability to support the weight of a laptop, especially over extended periods, and predicted it would quickly collapse or tear. Some suggested that while it might work for lighter devices like tablets, it wouldn't be suitable for heavier laptops. Others pointed out the potential for instability and wobbling. There was some discussion of alternative DIY laptop stand solutions, including using cardboard or other more robust materials. A few commenters appreciated the minimalist and eco-friendly concept, but overall the sentiment was that the design was more of a novelty than a practical solution.
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https://news.ycombinator.com/item?id=44020315
Hacker News users generally expressed appreciation for the intricacy and artistry of the paper mechanisms showcased on cutfoldtemplates.com. Several commenters highlighted the nostalgic connection to childhood paper toys and the satisfaction of building something tangible. Some discussed the educational value of these models, particularly for understanding mechanics and engineering principles. A few users pointed out the site's clever use of SVG for the templates and the potential for customization and adaptation of the designs. The practicality of paper as a readily available material was also noted. A recurring theme was the admiration for the creator's dedication and skill in designing and sharing these intricate paper creations.
The Hacker News post titled "Paper Mechanisms" links to cutfoldtemplates.com, a website showcasing various paper mechanisms. The comments section contains a diverse range of thoughts and observations about the website and the topic of paper mechanisms in general.
Several commenters express their fascination and admiration for the complexity and ingenuity of the paper mechanisms displayed on the website. Some highlight the educational value of these models, particularly for understanding mechanical principles and appreciating the art of design. They note how these physical models can offer a tangible learning experience that goes beyond digital simulations.
One commenter points out the connection between these paper mechanisms and the historical significance of automata, intricate self-operating machines often made from wood and metal. This historical context adds another layer of appreciation for the craft and artistry involved in creating such mechanisms, even in a simpler paper form.
Practical applications of paper mechanisms are also discussed, with suggestions ranging from educational toys to potential uses in low-cost robotics or even as inspiration for more complex mechanical designs.
A few commenters delve into the technical aspects of the website itself, mentioning the use of SVG for the templates and praising the clean design and functionality of the site. They appreciate the straightforward presentation of the templates and the ease of downloading and printing them.
Some commenters share personal anecdotes about their experiences with paper models, recalling childhood memories or expressing their intention to try building some of the featured mechanisms. This adds a personal touch to the discussion and reflects the widespread appeal of these intricate paper creations.
The overall sentiment in the comments section is positive, with many expressing their appreciation for the website and the ingenuity of paper mechanisms. The discussion spans from technical details to broader reflections on the art and science of mechanical design, highlighting the diverse perspectives of the Hacker News community.