If you’re a fan of 3D printing, you really ought to be checking out 3D Printing Nerd on YouTube. Beyond also great reviews on printers, filaments, and so on, Joel Telling posts helpful tutorials. He’s definitely helped me learn a lot of techniques, from improving print quality to experimenting with materials. He covers everything in a way that is easy to follow and enjoyable, so whether you are just starting out or have been printing for a while, there are surely some great tips to learn
https://www.youtube.com/@3DPrintingNerd
Also, the channel Unnecessary Inventions is really fun if you’re into totally wild and creative product ideas. Matty Benedetto creates and 3D prints all kinds of off the wall inventions that are all useful and also funny to watch. His videos taught me tons about ideation and prototyping, they’re also really helpful because he breaks down entire build processes in a manner that’s both incredibly entertaining and really useful.
https://www.youtube.com/@UnnecessaryInventions
The Learning Repository 