Buildplate Endstops for Qidi X-Plus 3

For the last few weeks I've been annoyed that 280x280 buildplates are only available from Qidi and not from third party.

But now I have found a solution to my problem.  

There is a plastic cover around the heatbed that is not needed and can be removed. After removing it, a normal 300x300 buildplate fits without getting in the way. Since I don't want to have to be careful every time I attach the plate, I printed 2 adjustable endstops. The endstops use the plastic cover screws + 2 washers and are adjustable depending on the buildplate used. Since it gets quite warm so close to the heatbed, you should use an appropriate filament. I used Qidi PET+CF for this.

I printed with 0,2 layerheight,4 walls and supports enabled.