laser engraving jig

My first upload so be gentle guys. So, recently bought Crealitys new Laser Engraving Module and was quite blown away by it, HOWEVER, putting the piece you want engraving onto your bed was a bit of a nightmare. So I designed this pretty simple jig that sits on the corner of your bedwith a hole in the corner so you can slip a test piece underneath to focus the laser, therefore not get any mark on the piece you want engraving. Hopefully some of you find this handy, please feel free to play around with it if you like, just give me a mention please as I'm a complete novice at this, have fun people...