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adds note to loosely tighten zip ties on head for better strain relief
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docs/semi-assembly-3-1/wiring-3-1/index.md

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@@ -65,17 +65,22 @@ In this step, you will mount and connect all the wiring and pneumatic tubing.
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![Looping zip tie](images/zip-tie-1.JPG)
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![Looping second zip tie](images/zip-tie-2.JPG)
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16. Find the cable labeled `LM`, route it over the top of the Z motor, and secure it in place with the zip tie on the left side of the X gantry.
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16. Find the cable labeled `LM`, route it over the top of the Z motor, and **loosely** secure the zip tie on the left side of the X gantry.
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![LM cable](images/zip-lh-1.JPG)
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![LM cable secured](images/zip-lh-2.JPG)
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!!! danger "Secure zip tie loosely"
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When tightening the zip tie, do **not** tighten it fully. Tighten until there's about a 15mm diameter opening as shown below. If the zip tie is tightened too tightly, it can cause excessive wear to the cabling.
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![LM cable secured](images/loose-zip.jpg)
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17. Fit a zip tie through the outer slot on the left Z gantry.
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![Zip tie installed into Z gantry](images/zip-lh-3.JPG)
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18. Plug the cable labeled `LM` into the left motor on the X gantry. This cable is inserted from the bottom.
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1. Plug the cable labeled `LM` into the left motor on the X gantry. This cable is inserted from the bottom.
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![Left motor cable plugged in](images/plug-lh.JPG)
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19. Tighten left Z gantry zip tie to secure the LM cable in place.
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1. Tighten left Z gantry zip tie to secure the LM cable in place.
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![Zip tie securing left motor cable](images/zip-lh-4.JPG)
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@@ -84,15 +89,19 @@ In this step, you will mount and connect all the wiring and pneumatic tubing.
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![incorrect cable mounting](images/incorrect-cable.jpg)
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20. Find the cable labeled `RM` and secure it in place using the zip tie on the right side of the X gantry.
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![Secured RM cable with a zip tie](images/zip-rh-2.JPG)
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2. Find the cable labeled `RM` and secure it in place using the zip tie on the right side of the X gantry.
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!!! danger "Secure zip tie loosely"
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When tightening the zip tie, do **not** tighten it fully. Tighten until there's about a 15mm diameter opening as shown below. If the zip tie is tightened too tightly, it can cause excessive wear to the cabling.
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![LM cable secured](images/loose-zip-right.jpg)
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21. Fit a zip tie through the outer slot on the right Z gantry.
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3. Fit a zip tie through the outer slot on the right Z gantry.
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22. Plug the cable labeled `RM` into the right motor on the X gantry. This cable is inserted from the bottom.
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4. Plug the cable labeled `RM` into the right motor on the X gantry. This cable is inserted from the bottom.
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![Plug in Right motor cable](images/plug-rh.JPG)
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23. Tighten the right Z gantry zip tie to secure the RM cable in place.
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5. Tighten the right Z gantry zip tie to secure the RM cable in place.
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![Right motor cable secured with zip tie](images/zip-rh-3.JPG)
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@@ -101,18 +110,18 @@ In this step, you will mount and connect all the wiring and pneumatic tubing.
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![incorrect cable mounting](images/incorrect-cable.jpg)
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24. Trim the excess zip ties from the LM and RM cables.
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6. Trim the excess zip ties from the LM and RM cables.
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![Clipping zip ties](images/lh-trim.JPG)
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![Motor cables connected](images/head-trim.JPG)
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25. Find the two pieces of tubing labeled `LH` and `RH`, and insert `LH` into the left motor, and `RH` into the right motor. Make sure that the tubing is in between the `LH` and `RH` cable harness going to the motors as shown in the image below.
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7. Find the two pieces of tubing labeled `LH` and `RH`, and insert `LH` into the left motor, and `RH` into the right motor. Make sure that the tubing is in between the `LH` and `RH` cable harness going to the motors as shown in the image below.
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![LH and RH tubing](images/tubing.JPG)
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![LH and RH tubing installed](images/tubing-inserted.JPG)
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!!! Note
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If you ever need to remove the tubing, press down on the blue plastic circle while pulling upward on the tubing.
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26. Your X gantry should look like the image below.
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8. Your X gantry should look like the image below.
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![Final X gantry](images/finished-head.JPG)
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1. Take the print attached to the wire exiting from the middle of the cable chain, and align it with the back of the X motor as shown in the image below.

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