Dual Extruder dummy plug for second connector

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b-morgan
Posts: 169
Joined: Fri Aug 11, 2017 8:53 am

Dual Extruder dummy plug for second connector

Post by b-morgan » Fri Jun 08, 2018 6:46 am

I installed a Dual Extruder (V2 and V3) so I have the second connector on the tool head mount. If I switch tool heads from the dual extruder to the single extruder without flashing the single firmware first, then I'm stuck. I have an error and the printer won't talk to anybody so I can't flash the firmware!

What I need is a dummy plug for the second connector with a 100K resistor across the thermistor pins so the dual firmware will be happy enough to let me flash the single firmware.

I'm guessing that I'd have to buy some minimum quantity of parts in order to make such a beast but I'll bet the folks at the LulzBot factory could throw some together and sell them on their website for an insane markup but a reasonable price for one.

Alternatively, can someone point me to the pinout for that second connector so I can carefully insert the ends of a 100K resistor?

kmanley57
Posts: 1060
Joined: Sun Feb 01, 2015 3:53 pm

Re: Dual Extruder dummy plug for second connector

Post by kmanley57 » Fri Jun 08, 2018 3:14 pm

Maybe the end with the two orange thermistor wires, at the opposite end from the red and white motor wires.
I will express my CRAZY ideas at any time! So you have been warned. None of my opinions are Lulzbots and can be wrong at any second.

kcchen_00
Posts: 1608
Joined: Thu Feb 19, 2015 12:42 am

Re: Dual Extruder dummy plug for second connector

Post by kcchen_00 » Fri Jun 08, 2018 6:31 pm

There was a PDF doc stored on the one of the Lulzbot sites with the pin information. I can't seem to find it again.

Best bet is to trace the wires from one of your toolheads... the V3 probably easiest since it has the molex connector in the wiring harness.

kmanley57
Posts: 1060
Joined: Sun Feb 01, 2015 3:53 pm

Re: Dual Extruder dummy plug for second connector

Post by kmanley57 » Fri Jun 08, 2018 6:49 pm

kcchen_00 wrote:
Fri Jun 08, 2018 6:31 pm
There was a PDF doc stored on the one of the Lulzbot sites with the pin information. I can't seem to find it again.
Maybe this one?

http://devel.lulzbot.com/TAZ/Juniperbus ... %203.0.pdf
I will express my CRAZY ideas at any time! So you have been warned. None of my opinions are Lulzbots and can be wrong at any second.

kcchen_00
Posts: 1608
Joined: Thu Feb 19, 2015 12:42 am

Re: Dual Extruder dummy plug for second connector

Post by kcchen_00 » Sat Jun 09, 2018 11:21 am

kmanley57 wrote:
Fri Jun 08, 2018 6:49 pm
kcchen_00 wrote:
Fri Jun 08, 2018 6:31 pm
There was a PDF doc stored on the one of the Lulzbot sites with the pin information. I can't seem to find it again.
Maybe this one?

http://devel.lulzbot.com/TAZ/Juniperbus ... %203.0.pdf
That would be the one!

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