CIRCLE-CAT Standard 3mm

The CIRCLE-CAT Standard 3mm has a, like the name says, 3mm thick main plate and uses 36x36mm plates as a top plate. You can print those, but here's a link to some good ones anyway: http://www.banggood.com/Flight-Controller-Protection-Cover-Plate-Damping-Plate-Controller-Board-for-Martian-Series-frames-p-1102552.html?rmmds=search

There are also more sturdy 4mm and 5mm options.
Search in my designs.

The Frame needs a 200x200x3mm space to print. Print with 100% infill.

Thickness: 3mm
Flight Controller: Standard size, 36x36mm
Print size: 200x200x3mm
Weight: 85g
Motor: 22XX
Prop: up to 4.5"