Hi

In the instructions, you are now putting the Z axis motors on their mounts, the Y axis motor on its mount and putting the Y bed together.

The instructions go through a bunch of stuff about getting the Z motor mounts right at 55 mm. Don't sweat it. The mounts could be another 5 mm higher and not have a real impact on much of anything. It *is* worth getting them low. It's not worth going crazy to get them to 55 vs 56 mm.

When you go to put the Y bed together, you suddenly come up against a gizmo called an eccentric. If you have never seen one of these before, stop to take a look at it. There is a hole in the middle that is offset compared to the main axis of the part. When you rotate the part, the hole moves around. Later on you will be using it to adjust the tension on the rollers. In order to do that without going nuts, you need to have some idea where the thin side and fat side of the exocentric is. All you will be able to see is the walls of the hex outer part. Grab a marker and put some marks on the part. You need one (say a dot) to show the skinny side. You need another (say a line) to indicate the fat side. That leaves 4 of the 6 sides with no marks. Grab all of the eccentrics in the hardware pack and mark them now.

The hardware that goes through the rollers is a bit tricky to get set right. To tight and the roller starts to bind. To loose and it is going to wobble or the eccentric will slip. Spend some time getting it right. Twist the roller to be sure it runs free. Tighten some, check it again. Once you feel it start to drag, back it off to just the point that the drag stops. Get it within an eight of a turn.

At this stage do not worry about getting the table on the printer tight. Just get it on so it does not rattle around. You do *not* want to play with both rails. Only adjust the right rail. Leave the left rail at the location you measured it to be at.

Yes, the top of the frame is still sitting there. The X carriage needs to get done first. Until the top frame is on the printer, there is not a lot of use getting everything lined up perfectly. There is a whole process to getting that done.

Bob