Laptop stand for 15 inchs. It's made so you can print different widens from total 200mm to 240 mm by increment of 10 mms. 

It can be assembled without any glue. It's very sturdy. It's made with 4 spacers, but I think you can use less. 

I have printed it  on af Prusa MKS3+ and it can just be on the build plate.