About this 3D model

The clamps i bought for the glass is too ugly, and it looks unprofessional. spent an hour trying to look for alternative online with no luck, so i have decided to design one myself. Detail: heated bed: MK2 from prusa mendel i2 kit(mixshop) glass: 7 3/4" square x 3mm thick corner hole diameter: 3mm one of my concern was that since the part is made of PLA, i was worried that it might warp/deform as it has direct contact to the heated bed. printed a few things and been working great so far. although the glass thickness is 3mm, i made the counterpart 2.8mm so it can be tightened. note that this only works if your glass size is exactly the same as mine 7 3/4" or 196.8mm, haven't really looked into the parametric function on this site. But i will do it upon request