snapping spool holder

myminifactory

This is my entry for the 3DPrintingNerd challenge, carefully designed in Autodesk Inventor. I also conducted a thorough stress analysis, which yielded impressive results. To test the spool holder's durability, I applied three distinct forces of 50N each, simulating two critical scenarios. Firstly, assembling the holder proved straightforward, as it easily clips onto the wooden bar. Initially, I was perplexed by a discrepancy between my calculator's measurement and the drawing's dimensioning – 3/4 inch equating to 19.05 mm. Nevertheless, after accounting for this minor difference, the assembly proceeded without issue. Notably, during assembly, the rear part of the holder flexes slightly, prompting me to recommend printing it with PETG for added reinforcement. Fortunately, its design compensates for this flexibility. The second scenario involves actual usage of the spool holder, where the spool's force is aligned with gravity. Under a 50N load (approximately equivalent to 5kg of spool weight), the stress on the holder remains remarkably low – boasting a minimum safety factor of 4.2 at the rear and 6.08 in the front. Removal of the holder is effortless, achieved by bending back its small notch and gently prying it off. I am eager to see this design benefit others and prove itself an indispensable tool for 3D printing enthusiasts.