Plastic Injection Molding

Nothing better after a day's work than to have dinner, pour a glass of wine and watch a video about plastic injection molding.

I made plastic injection molds for 35 years, and that was the most precise description of the process that I could wish for. Great work!

This guy is the David Attenborough of engineering!

I’m a maintenance mechanic at a plastic injection molding plant. I rebuild and maintain these machines. If someone asked to explain the principles involved I don’t think I would have done it as well. Our molds don’t have hot runners, or date stamps so I actually picked up some knowledge. Good video sir.

Absolutely agree with the Lego part. Our teachers often tell us how incrediblely complex and well-constructed the Lego parts are and what huge amount of engineering know-how went into making them. This year we even got the challenge to construct a mold for a Duplo part (A little bit easier but still great to build up knowledge as a student). On of our class even had to construct one for a Duplo slide. It took him and two teachers about 3 hours to find out how to construct the cavity in the mold in order to eject it from it.

I'd just like to add that the water pumped round the tool isn't always cold. Where I work we regularly use water anywhere between 20*C and 80*C depending on the mould size and the material used for that job. We've even had moulds go up to 130*C for glass filled lens housings.

Something about these videos is just so therapeutic and relaxing, yet so rich with information

After spending 200 years making injection plastic I can say for sure this guy knows what he's talking about!

Hey Bill. Thank you for returning to YouTube, I enjoy the way you explain things I normally don't think about. Have a fantastic day

This guy is THE epitome educator! Clear, concise, and informative! Always a pleasure to watch his videos!

I work in the Injection-mold department, assembling products. Love it!

I designed injection molded parts for over 38 years. This video is on of the most thorough presentations of the molding process. This video with help new designers and engineers explain why it will take weeks to complete a mold due to strength of the pressures and the precision, and complexity of cooling the mold. Hats off!

WOW...the dedication on the quality and details of this video is just amazing! You guys are true heroes to those who love to learn!

After spending over 25 years as an injection mould toolmaker I thought I knew just about all there was to know. This is an excellent educational video that I have benefitted from watching and learnt much more than I expected. Many thanks for posting this.

As an industrial designer, I wish they would have taught this information in college as thoroughly as this video did in less than 10 minutes… would have saved me the trouble of piecing it together on my own bit by bit over a couple of years.

I'm a mold maintanance guy for a local family shop after being an operator/processor for a few years, we make small car parts for tesla, toyota etc. Never thought id be watching injection molding after work. Interesting to see a more in depth look, i learned something new thank you

worked in a molding plant for 5 years, very good introduction.

As a kid, I studied the marks of injection molding on household objects without knowing how they were poured. Thanks for revealing the mystery.

As a process technician in Injection Stretch blow molding and Injection molding, this is such an informative and accurate video on our industry. Thank you.

I'm a mechanical engineer and I just discovered your channel with this video, I had so much fun watching it, the description so accurate, and it seems the only thing left for me to do now is to binge the rest of your content