Anycubic Kossel heated bed clips

I was inspired by these [bed clips](https://www.thingiverse.com/thing:2078581) designed by [JamesWhite](https://www.thingiverse.com/JamesWhite/about). Those clips were designed for a 220mm heatbed and 240mm glass plate.

The heated bed that came with my linear plus was 240mm, so I designed a similar clip but with only one holder for the 240mm heated bed and ultrabase. This is the result, so far it seems to work well.