0

Why are cans shaped the way they are? #makereducation

Real

This article from DataGenetics explores the reasoning behind can and food storage manufacturing:

f the goal was to purely maximize the volume of food that could be stored in a container, the result would be a spherical can. A sphere is the shape with the minimum surface area to volume ratio. It could contain the most amount of food for the least amount of can material. However, it would be totally impractical! It would not stay still on a shelf, making display and storage hard. How would you hold it? How would you open it? How could you manufacturer and fill it? When stored in packing boxes, even with hexagonal close packing there would be unused gaps in the storage boxes.

Clearly optimizing purely based on minimizing the material needed for an individual can is not optimal.

If we wanted to use a shape that packed perfectly efficiently, we’d use some kind of cuboid. These would sit and stack nicely on shelves too. They’d be easier to manufacture than spheres, but the edges would be stress points. You occasionally seen cuboid-like containers (corned-beef, spam and sardines are the first that come to mind). Rather than sharp edges, these have filleted (rounded) edges to reduce stress concentrations and to make them easier to manufacture.

Label

Read more.


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 12,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — SiFive is a startup to pay attention to. RISC-5 is here to stay.

Wearables — Swatch it up

Electronics — Code like everyone’s watching

Biohacking — Stroboscopic Visual Training

Python for Microcontrollers — CircuitPython takes flight! All aboard with datum, Bluefruit CPX, and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.