hi ppl, im about to start my first build, it'll be a fixed gantry router with travel in x and y bein 500 x 500, it'll be mainly made from mdf for now (or whatever i can swipe from work lol) and used for cutting 3d into wood blocks, my buget is real tight so would m16 studding work instead of ballscrews (accuracy sacrifice i know but hey), an has any1 used rails made of ally angle with sealed bearings bolted to sides?