Drag chains

There are two drag chains: one parallel to the X axis, and one parallel to the Y axis.

We start with the Y axis one. You can choose yourself if you place it at the right hand side or at the left hand side of the machine. Most people choose for the left hand side (when looking at the machine from the front), and the instructions here will do that as well:

Take one of the 3D printed plastic drag chain supports, a drag chain start element and three 15mm low profile M5 screws with 3 nylon insert M5 nuts: and attach it to the corresponding holes:

Then, prepare low profile 25mm M5 screws and post insertion nuts for the holes at the longer end of the 3D print:

Make these not too tight (you will otherwise not be able to use the post insertion nut properly when attaching to the rail):

And attach it to the front or the back of the left hand Y axis rail: the picture shows it in the bottom left corner – but if you like your cables to arrive at the top left corner, then you can also position it there:

Take again 3 15mm M5 low profile screws and 3 M5 lock nuts as well as a drag chain start element (different than the one you took for the previous setp) and the other 3D print:

And attach these:

Then take 2 low profile 20mm M5 screws and 2 M5 lock nuts:

And attach it to the left plate:

You’re all done for preparing the Y axis drag chain!

Now we move on the X axis drag chain:

Take a drag chain start element, a low profile 8mm M5 screw and a post insertion nut:

Put it in the central hole of the drag chain start element – but do not tighten it yet:

And attach it to the rail parallel to the X axis rail – now you can tighten the screw so that the post insertion nut will lock itself:

Now take the last 3D print and the last drag chain start element and again 3 low profile 15mm M5 screws, together with 3 M5 lock nuts:

Tighten these, and take 2 low profile 55 M5 screws, with two M5 lock nuts BUT BE VERY CAREFUL ABOUT THE ORIENTATION OF THE SCFREWS! THE LOCK NUT SITS ON TOP:

And attach that to the X axis carriage