Quote Originally Posted by Blackrat View Post
i think this render explains it a little better

the gantry bearings are directly onto the Z bearings which is great ... but i can only lift the Z rails until they are level with the bearings, which stops Z clearance .... sheesh i feel like im speaking Chinese now
Why would you want to go higher than that you have shown, you can't go higher than the gantry so lower the bed. The Z rails (in my opinion) are better fixed on the plate that the spindle is fixed to as it helps to stiffen the plate etc. ..Clive