This is a super simple, small and quick bed aligner that works with any printer! Just attach some double-sided tape or glue to the bottom and you're good to go! There are liners for the side and corners, so no need to worry about the bed cable! Just don't put the aligner to far down on the bed, the printer may collide with it when doing the purge line or during a really big print.

You might want to scale it up a bit, but it doesn't need to be that big and it works perfekt for me.