Hi, I have upgraded to an A3 emblaser and am having troubles with the unit skipping steps and making horrible noises. I have been through the belt tension regime several times and although I now think this is my root cause, following the instructions in the manual is not eleviating the problem. I also feel I am putting too much tension on the second belt set up to achieve the goal of both stps hitting the end plate at the same time. I just tried sending a grid test and stopped it as I notice as the laser head got nearer the right hand side, the text was becoming out of register and not stayiong on a line. Pic attached. Help required as I've run out of ideas??????