Since the H2C arrived a week ago, I've immersed myself in the technology of 3D printing. I had to learn a whole 'nuther language! Also, I'm finding that many of the designs available on the various sites don't meet my standards, so I am designing most things I print from scratch, which takes a lot more time. Following up on my previous post, I've figured out multi-material printing and TPU printing (not as simple as other materials). Here's my finished spare tire bumper with a plug for the end: I used PTEG HF for the main portion, and the top and bottom are TPU 95A HF, and I really customized the slicing. The top was TPU for some give against the tire, and the bottom was TPU because it works with the plug to seal the bolt and sleeve inside from the elements. Both filaments were thoroughly dried prior to printing. The TPU got slightly stringy on my at the very end of the print. I plan to post more about my design process on my build thread when I get a breather from 3D printing.