extruder mount for Ender 3 v2 cable chain

extruder area mount for the cable chains used in the original model I remixed, with easy assembly and snaps.
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updated September 23, 2024

Description

PDF

Introduction

My ender 3 v2 had its cables drag on the print bed in the lower layers and sometimes got stuck in the gap between the bed and the bed cables. Obviously, I didn't like it and looked for a solution, which turned out to be in the form of cable chain. I printed the parts, assembled it and unfortunately it still hadn't lifted the cables enough to prevent them from dragging on the build plate. I looked for solutions here and the best I found was an extruder mount that fit narrower chains (most likely too narrow for the hot end and cr-touch cables) and required a long disassembly to install it. I decided to make a model that would take use of the parts in the source model and would have a simple assembly.

About the mount

I tried to model a part that would fit all my criteria: simple assembly, utilizing both the chain links and the chain links covers, and would have places for zip ties. I believe I succeeded at those goals. The assembly process takes 4 very simple steps, the mount has places for 3 zip ties with the dimensions of 1.1*3.6 mm (or smaller of course) and uses the parts explained above. Side note: I have the red metal extruder (dual drive gears) and I assume it should fit every extruder type (if anyone have problems with that, I would like to know in order to make a better mount).

Assembly process

  1. After printing and removing supports unscrew the 2 screws connecting the z axis nut to the x axis.
  2. Slide the extruder cable chain mount on the z axis screw and place on the bracket.
  3. Screw the 2 screws back.
  4. Connect the cable chains from the base attachment to the extruder mount (I used 22 chain links) and to the right (I used 11 chain links and 1 end chain link from https://www.thingiverse.com/thing:4812822). I also used 12 chain links and 1 end chain link for the printing bed. I placed chain links covers every 2nd chain link (except the chains that pass near the z axis motor/ coupler and may get stuck on them if they have the link cover). I locked the cables in the mount with 2 chain link covers.

Remarks

• Be careful where you place the chain link covers between the base attachment and the extruder mount – so it won't get stuck when the x axis is going up/ down.
• When printing you only need supports for the overhang part (if you print the part in an orientation where the cuts for the zip ties face up and the holes for the 2 screws and z axis screw are in the top of the print). Use support blocker everywhere else that has supports.
• I've uploaded .stp files of the extruder mount and the assembly including the extruder, the extruder mount, the cable chain links and cable chain links covers in case that anyone would like to take measurements of the mount/ extruder and compare them to their printer.

Print Settings

filament: PLA

Supports: required (use them only for the overhang area if you orient the model so that the 3 holes (1 big and 2 smaller) are on top of the print).

Tags



Model origin

The author remixed this model.

Cable Chain End Link
by nhorney (thingiverse.com)
 

Differences of the remix compared to the original

The original model includes the chains and base mount, however I found it didn't hold the wires to the hotend area high enough for me and therefore I modeled and adaptor that uses as much possible of the original model's parts.

License


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