10x11 Drag Chain Adapter Bracket for Ender 3 Linear Rail StealthySwiss
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Route wires from your linear-rail-mounted StealthySwiss toolhead and connect them to a 10x11 drag chain
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For all of your Ender 3 Linear Rail Stealthyswiss cable management needs
NOTE: The photo I took of my cable routing uses an earlier revision of the part. The current iteration is a little wider along the X axis among other changes.
An X-Axis Motor Cover Drag Chain Adapter is now available to complement this model.
The drag chain link is positioned slightly off center of the T-slot extrusion (towards the front of the printer by just 1.25mm) in order to maximize clearance against bolt heads and brackets connecting the gantry to the z-axis. This theoretically routes the chain flush to the front face of said extrusion.
The topmost bolt hole is for a Ruthex M3 insert. This replaces the original insert from the corresponding hole on my Stealthyswiss Mounting Bracket. To accommodate this, a variant of that bracket with a clearance hole instead of an insert in that spot is now available on the same page.
The bottom bolt hole is for a regular countersunk M3x5 machine screw to thread directly into the aluminum DD bracket . Access is pretty well obstructed by the gantry cross-members, but I found a ball-end allen key could reach it.
Be mindful of your print settings:
I used PETG for its toughness, which is essential for the fragile chain link ears.
I also printed this without supports. If you choose to do the same, make sure your bridging is dialed in. Printing a cross-section of the model to test the bridge layer might be a good idea.
If you decide you'd like to use supports, I recommend you limit them to "on buildplate only."
If you print this with the chain link pointing up (which is how I did it,) beware that the layer line orientation makes the ears especially fragile. I would create a modifier area in the slicer to print that section as slowly as possible and ensure maximum layer adhesion. What I actually did was force ironing on every layer, but this cost me dimensional accuracy.
During assembly, you would be wise to place a some kind of spacer between the ears while attaching your drag chain to prevent pinching them inwards and snapping them off. Let the injection-molded nylon links do the bending.
Good Luck!