Bambu Lab 3D printers rarely go on-sale, but Amazon has every version of the auto-leveling A1 deeply discounted right now.

We know many people who put much effort into building model train setups. But [Rambros] has an entire set 3D printed, and the files are open source, so you can print your own or modify it to suit you.

Simplify, reduce meshes or decimate. Choose your terms. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The best way to simplify a complex model ...