Taz4 Hot end electrical connectors V2B or V2C

General LulzBot TAZ
1

I’m working on upgrading my Taz 4 to use the new hexagon hot end.

For the old style V2B you just need the blower adapter.
https://www.lulzbot.com/store/parts/internal-blower-harness-add
You also need a matching pigtail to get the blower circuit wires out to the print head connection point.
I can’t find where this pigtail is listed for sale?
Then purchase an extruder with the correct V2B end.
https://www.lulzbot.com/store/tool-heads/lulzbot-taz-single-extruder-tool-head-v2

V2C
Still need the internal blower adapter.
https://www.lulzbot.com/store/parts/internal-blower-harness-add
To replace the old style extruder electrical connections with the new V2C style there is a new harness that you can purchase.
https://www.lulzbot.com/store/parts/lulzbot-taz-5-v2c-tool-head-harness
And again purchase the correct V2C option on the extruder.
https://www.lulzbot.com/store/tool-heads/lulzbot-taz-single-extruder-tool-head-v2


So what am I to do if I want to build my own hot end and upgrade my system to the VC2 at the same time?
Blower connector. Check!
https://www.lulzbot.com/store/parts/internal-blower-harness-add
New wiring harness with compatible V2C connector. Check!
https://www.lulzbot.com/store/parts/lulzbot-taz-5-v2c-tool-head-harness
Now is where it gets tricky because I need a hot end with the V2C and I have to also wire in a stepper motor to that connector also.
The standalone hot end does not appear to have the V2C option.
https://www.lulzbot.com/store/parts/lulzbot-v2-hexagon-hot-end
Are the pinouts of the V2C posted somewhere?
What about crimp pins to adapt the stepper motor harness to the V2C?

2

The pinout and assembly instructions are available here in Step 11: https://ohai.lulzbot.com/project/taz-6-extruder-full-assembly/taz-6/ The pins will be listed in one of the Bill of materials files with an ods extension available here http://devel.lulzbot.com/TAZ/accessories/tilapia/

The ods files can be opened by microsoft excel. It looks like they contain the whole part set for the entire Taz though. Just digging around quickly it looks like the parts you need are going to be these:

RevB Stepper Motor JST 115mm Harness (EL-HR0096) - that’s the housing for sure
[EL-MS0014] Noninsulated Wire Ferrule, 16 AWG, .28" Pin Length - I think these are the blanking pins for allignment
[EL-MS0205] Molex-CONN TERM MALE 22-24AWG TIN - Reels of 20K - These may be the crimp pins
[EL-MS0251] CONN HOUSING 16POS .100 DUAL - This may be the opposite side
[EL-MS0351] JST - CONN TERM CRIMP PH 24-30AWG - 8,000 Unit Reel - these may be the other side pins or something else?
[EL-MS0355] CONN HOUSING PH 6POS 2MM WHITE - no idea what this is
Digikey should have those parts available.

I’ve never actually made the 6 style harness. I don’t like the lack of a locking latch. I will admit it looks better than the older ones, but I prefer the secure connection personally. I’ve not tried it though either so it may be a much firmer connection than I am thinking it is.

3

First one is the cable to connect to the Moon Motor(if you have one)
Next are used to connect the two cooling fans together then run up to the forth item which is the extruder connector housing
Third is right
Forth see #2
Fifth/sixth are the connector for the moon motor connector on #1.

4

well, that will teach me to try and guess parts.

5

So starting with step 6 https://ohai.lulzbot.com/project/LulzBot-Hexagon-Hot-End-subassemblies/ gives you wiring schematics for the different types of extruders.

The new style single connector for the extruders is a Molex 22552161.

So here is the revised shopping list for those playing along at home.
V2b
Blower Adapter (Internal) https://www.lulzbot.com/store/parts/internal-blower-harness-add
Blower Adapter (external) https://itworks3d.com/product/lulzbot-taz-4-5-harness-tool-head-micro-blower-external/
Turn key hot end. https://www.lulzbot.com/store/tool-heads/lulzbot-taz-single-extruder-tool-head-v2

V2C
Still need the internal blower adapter.
https://www.lulzbot.com/store/parts/internal-blower-harness-add
To replace the old style extruder electrical connections with the new V2C style there is a new harness that you can purchase.
https://www.lulzbot.com/store/parts/lulzbot-taz-5-v2c-tool-head-harness
And again purchase the correct V2C option on the extruder.
https://www.lulzbot.com/store/tool-heads/lulzbot-taz-single-extruder-tool-head-v2


So if you are building your own hot end and are trying to get things adapted it-works3d.com sells the connectors and pins.
V2C Connector https://itworks3d.com/product/molex-2-row-connector-lulzbot-tool-heads/
V2C Pins https://itworks3d.com/product/connector-pins/

V2b Connectorshttps://itworks3d.com/product/molex-1-row-connector-housings/
V2b Pins https://itworks3d.com/product/connector-pins/