💰 Expensive for a Reason? Rizium COC-CF & COC-GF Tested

In this video I test Rizium COC filaments by Palitra — including COC-CF and COC-GF, along with their dedicated support material. At $90 for a 0.5 kg spool, this is one of the most expensive filaments I’ve tested so far. The question is simple: is there a real reason behind the price? I go through the full evaluation: brittleness, printability, support removal, shrinkage, and a complete set of mechanical tests including tensile strength, layer adhesion, shear, torsion, creep, impact, and bending (including a new bending method). Product links: COC-GF: https://www.palitra3d.com/product/pal... COC-CF: https://www.palitra3d.com/product/pal... If you want to support my work and get more value: On Patreon you get early access to some videos and access to my comparison spreadsheet with all previous test results using the same methodology.   / mytechfun   Chapters: 0:00 Introduction 0:54 Specifications 2:45 Unboxing 3:16 Filament brittleness 4:55 Slicer settings 5:18 3D printing 5:38 Support material 8:41 Shrinking 8:55 Tensile test 9:34 Layer adhesion 10:01 Shear test 10:34 Torsion test 11:28 Creep test 12:53 Temperature test 13:11 Impact test 13:56 Bending test 14:31 New bending test 16:12 All results 16:50 Conclusions #3dprinting #filament #engineering #materials #COC #carbonfiber #glassfiber #3dprintingtest