Well I think I hold the record for the longest build in history. I was able to finally raise the X axis to keep the rails from hitting the table. I also added a bed to be able to clamp down material. After installing everything back I ran into a little problem. I was able to square the gantry at the back having both raisers touch the bumpers together. I wanted to see how it is when I move the gantry to the front bumpers. The left side is off by 3mm when the right side touches the right side. I have included pictures to illustrate my problem. Where did I go wrong? What can I do to fix this problem? It’s strange because with the gantry all the way to the back both sides touch the bumpers evenly but as I move the gantry to the front bumpers their off by 3mm. All help is greatly appreciated.