Wiring the E3D v6 Hotend to Replace Ubis

Part of a series on installing the hotend.

Thermistor Wires

They give you directions to use some ferrules, but you should solder those points instead. You've got a soldering iron so fix those conductive points like an adult. Remember to put heatshrink tubing (I used 1/4 of the provided tube on each point) on the wires before soldering. After you are done you'll have a crazy long cable for your thermistor

Solder the wires. Red and black don't matter here.

Cover the soldering with heatshrink tubing

Now trim each of those thermistor wires down to about 10cm. Keep the extra black and red wire around because you'll need it later. Strip your new wire ends a bit.

A lot of wire removed

Thermistor  Molex

We want our new thermistor wired exactly the same as our Ubis so we can easily swap it out.

Grab your Molex receptical (0436450200) and two female sockets (0430300003). Crimp your sockets onto the wires as tightly as possible and push the sockets into the receptacle. I used a needle nose pliers for the crimping but if you have a special tool or want to solder a little bit just to keep a solid connection that's fine.

The sockets that go into the receptacle do have a top and bottom so get to know your Molex.

Red wire connected.

Thermistor molex attached.

Heater Cartridge Wire

You've got a really really long set of blue wires connected to your heater cartridge. You'll want to chop them short. I left mine a little longer than necessary just in case. My shortened wires were just about 10cm, but I probably could have gone 8cm.

We don't need the protective red sleeve to be as long as it ships. It mostly just needs to cover the crimped wire underneath it, and it removes some of the flexibility. I slipped off the sleeve and made a cut at about 1cm then slipped both pieces back on.

And of course strip some of the wire. If you are sloppy like me you'll fray the blue covering a lot, but it doesn't matter because there is a more solid covering underneath that.

Looks real short doesn't it?

Heater Cartridge Molex

We want our new heater wired exactly the same as our Ubis so we can easily swap it out.

Grab your Molex plug (0436400200 or 0436400201) and two male pins (0430310003). If you only had access to the x0200 plug you should trim the wings off them now. Crimp your pins onto the wires as tightly as possible and push the pins into the plug. I used a needle nose pliers for the crimping but if you have a special tool or want to solder a little bit just to keep a solid connection that's fine.

The pins that go into the plug do have a top and bottom so get to know your Molex.

I bought 4 pins because I knew I'd screw up

The mounting points do remove quite cleanly

Wires Connected

Ready to find out if you've connected your wires properly? It is time to test your hotend.