Slider Block Clip

After having built an Ultimaker Extrusion after Jasonatepaint's great design, I found that my slider blocks wanted to shift and twist, probably due to the nature of either the blocks or the rails sourced from inexpensive suppliers. I made these clips to hold the blocks stable in anticipation of printing replacement blocks. However, they work so well, I may not have to. They are sized for 6mm rails.