About this 3D model

This is a remix from Spyda 500 made by Gyrobot, 5mm thick and with different arm holes (1inch x 1 inch) i did this to fit my arms enjoy! Update:Added 3mm version, 5mm seems to be way too thick xD!.. Update:Ive used 5mm for top and 3mm for bottom, great rigidity!! Update:Added, 5mm and 3mm with better bracing for holding batteries