Tyro 99 drone quadcopter arm replacement

thingiverse

I'm printing a replacement arm for my Tyro 99, which broke due to backordered parts. After a quick hover flight test, it appears to be holding up fine. Next, I'll try printing the part at 105% on X and Y axes, while reducing Z-axis to 98%. This will also involve annealing in the oven to see if it can minimize the flex inherent in PLA material. However, I suspect this may introduce vibrations. The updated version of the arm (V1.4) now features widened screw holes to prevent drilling issues. Additionally, V1.5 includes thicker versions with undrilled holes, ensuring full plastic strength and improved durability. Notably, the arm tends to break along the lines where the holes didn't fuse properly. Printing and drilling the holes can make it stronger. The annealing process has been tested in the oven, revealing minimal shrinkage of 1MM on the long side. The next step involves wrapping the part in plastic held by an aluminum foil plate and then quenching it in boiling water before submerging it in cold water to analyze the results.