Ender 3 NG v1.2 toolhead accessory cable mount and breakout for BLTouch
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Use your BLTouch with your Ender 3 NG v1.2
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This is a toolhead accessory cable mount and breakout the includes a configuration designed for using a BLTouch sensor. This is what I believe is the most common setup when converting an Ender 3 into an Ender 3 NG v1.2 (including me), but I didn't see a part for this, so I built my own.
The hot end heaters can take quite a bit of current. JST XH connectors are designed to carry 3A per pin, which is 72W at 24V. A lot of hot ends demand more power than this (like my Volcano ACE), so I am using a 4-pin connector for my hot end to split up the heat and ground pin in parallel. On paper, this will make this connector support 6A, or 144W.
I also made a little cutaway under the cable mount to allow the cables to run directly behind the mount to the backs of the connectors. Please note that this part is custom to this breakout, and will not fit the original Ender 3 NG v1.2 breakouts. If you want to use this shroud with original breakouts, see this version here.
Here is the arrangement that I recommend using this breakout:
- Left part fan, heatbreak fan, right part fan
- BLTouch probe, Y stop sensor
- Hot end heater (4 pins), hot end thermocouple