Hey all.. I have ordered many pieces of V-Slot from openbuilds, but unfortunately I have received rail of different length. So to explain, I have three pieces of 20X20X500mm but all three pieces are not the same length, and the difference is up to 2mm between them.. I have also received other widths of multiple lengths.. mostly the difference is just in the 1/2mm to 2mm range.. This is causing several squaring issues.. So my question is: What would be the best, yet not too expensive tool for cutting my rail to the same length and ending up with square ends.. Although that sounds like a simple question, it actually isn't.. Miter boxes and miter saws have play in their 90 degree setting.. even with framing squares, you really can't be accurate in the mm range.. So, I wish to have the most accuracy over 1,500mm after cutting down my rail.. What have you, out there found to be the best device for making the rail square after cutting? Thank You in advance for your answers..