This Episodes Questions:
Hello,
I’m a dedicated listener of your podcast and I have a question that’s been on my mind regarding 3D printing materials. Nowadays, PETG is available at a price point similar to PLA, sparking a debate among enthusiasts. Many argue that PETG is superior in every aspect, rendering the use of PLA obsolete. However, my personal experiments, corroborated by various online sources, indicate that PLA exhibits greater tensile strength and, in some cases, enhanced impact resistance—especially PLA+. This does seem to vary across different brands.
While PETG undoubtedly outperforms in terms of temperature resilience and chemical stability, its reputed strength superiority is something I find quite perplexing. My theory is that PETG’s significant deformation under gradual stress, as opposed to PLA’s sudden failure under higher loads, might be influencing this common perception. I would love to hear your thoughts on this topic. Thank you for the consistently excellent content! Kelly
Hey guys love what you do, I’m listening to the “Worn Nozzle” Podcast. You mention the 3D Chameleon multi filament changer. You guys should try to get him on the show, https://www.3dchameleon.com/ . The inventor is Bill Steele (I may have misspelled the last name) and if you will look at the dates of releases, Bill’s invention predates all the multi filament changers even Prusa’s MMU, Bambu’s AMS, etc. He is up to version MK4 and this unit is amazing. Don’t dismiss it as a gimmick, it works better than all these others out there including the new “enraged rabbit carrot feeder”. Chris