Plastic Injection Molding Explained, and how Billiards and Elephant Ivory Lead to its Invention!

Engineerguy Bill Hammack gives an absolutely excellent walkthrough on how plastic injection molding works. He also gives a brief history of how that technology came to be, following a $10,000 prize in 1860s & ’70s dollars (now $3M) to invent what would become celluloid, which eventually aided the invention of plastic injection molding.

Bill’s walkthrough is one of the best explainer videos I’ve watched on this subject – from the animations to the terminology (check ring, parting line, hot runners, ejector pin witness marks, and more!) and techniques explained, simply and clearly. Watch it below!

billiard ball

injection mold patent

injection molding


lego brick

Join 4,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Learn “How Computers Work” with Bill Gates, Ladyada and more – From Code.org !

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

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 — Prototyping PCBs with Particle, a guide from a pro in the field #makerbusiness

Wearables — Learn about stretch

Electronics — Even lower power!

Biohacking — Nectome’s Brain Preservation and Backup Service Plan

Python for Microcontrollers — Scott (t[email protected]) on the Amp Hour podcast!

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.