Product Deconstruction and Review: Rexona Spray Can (2022)
dienamics.com.au
dienamics.com.au
It's deeply knowledgeable about an area, communicates it clearly, without surplus yackery (though I'm a bit prone to my mini-rants about things), and good images explaining what they mean.
It's not a 45 minute video, at hundreds of megabytes, with 25 minutes of fluff, and 20 minutes of very low density content.
For 3d printing there so many caveats to make something easy to print. But for molds that seems to be on a different level.
How you they now the plastic goes everywhere? Do they use flow simulations or is it experience?