H2D Build Plate & Vision Encoder holder protector

A functional build plate holder and protector for 4 build plates and 1 vision encoder plate, for H2D. Special designs of this print:Stability wings, hand tuned infill rate and patterns for stable storage. The bottom part has a higher infill rate, while the vertical part mostly relies on 1 extra internal wall to provide extra strenght, but no infill untill top.Vision Encoder slot with space allowing use of protection sleeve. The vision encoder plate is quite fragile, any scratch or bend can be catastrophic. And it's expensive. This design allows you to insert the vision encoder back to its protection sleeve, then put the whole sleeve into the rightmost slot with ease. No warp, no scratch, no oil or dirt. Just works.Integrated helper discs to avoid lifting from bed. This is a large print so bed adhesion is important. Many H2Ds might have a warp issue when printing large flat parts so I manually added helper discs (or mouse ears) to key corners, with 0 gap. Unlike slicer provided mous