Duel V3 Heat Creep Fix

A forum dedicated to the stock LulzBot TAZ 3D Printer
Post Reply
preteenpodcast
Posts: 2
Joined: Thu Aug 29, 2019 9:33 am

Duel V3 Heat Creep Fix

Post by preteenpodcast » Thu Aug 29, 2019 12:27 pm

Hey folks,

I know I'm late to the party, but I managed to fix my Lulzbot Taz 6 Duel Extruder v3 heat creep issues by replacing the 40mm fan that comes shipped with an 80mm fan from noctura. The modification uses all the same bolts as the original fan and secures the new fan to the converter with the rubber bits that come with it. I directly swapped the wires that went to the old fan into the new fan. Before this I spent several months tinkering with settings with no success but with this modification I got perfect prints in PLA and PVA with default settings in my first print. I have since run prints which continued without error for over 24 hours. I've attached the modification plans and the STL of converter/duct I am using on my printer. The one I have installed is printed in PETG.

Fan I used: https://noctua.at/en/nf-a8-5v

Let me know what you all think!
Attachments
80mm Duct v25.STL
(141.2 KiB) Downloaded 25 times
drawing.pdf
(116.22 KiB) Downloaded 30 times

JoeBowler300
Posts: 106
Joined: Thu Apr 28, 2016 12:20 am

Re: Duel V3 Heat Creep Fix

Post by JoeBowler300 » Sun Sep 08, 2019 8:36 pm

This is the best solution to the heat creep problem on the dual v3 and I’ve tried all the other solutions with little to no improvement. With this setup I was able to print through a whole role of PLA within a week and printing back to back to back! Previously I was practically guaranteed a print failure when printing back to back if the first print were successful. My dual v3 is reliable again! Thank you for posting this solution and uploading the 80mm duct.stl file and the link to the fan on Amazon.

preteenpodcast
Posts: 2
Joined: Thu Aug 29, 2019 9:33 am

Re: Duel V3 Heat Creep Fix

Post by preteenpodcast » Mon Sep 09, 2019 9:19 am

JoeBowler300,

You have no idea how many of your posts I read through searching for a fix. I am so pleased that your duel v3 is working now.

woodzy
Posts: 1
Joined: Wed Sep 11, 2019 5:43 am

Re: Duel V3 Heat Creep Fix

Post by woodzy » Wed Sep 11, 2019 9:40 am

I have printed the new fan duct and mounted the new fan and will test it out soon. I'm a machinist by trade and have access to some mold making materials. I would like to make the heat sink out of Ampco 940 which has a lot better cooling properties than stock Aluminum. Is there a drawing of this heat sink so I don't need to reverse engineer this. This would be very helpful.

JoeBowler300
Posts: 106
Joined: Thu Apr 28, 2016 12:20 am

Re: Duel V3 Heat Creep Fix

Post by JoeBowler300 » Wed Sep 11, 2019 1:09 pm

http://download.lulzbot.com/TAZ/accesso ... /heatsink/

Now you gotta send me the final product for “testing” purposes. :D

andru
Posts: 2
Joined: Tue Jul 02, 2019 12:35 pm

Re: Duel V3 Heat Creep Fix

Post by andru » Wed Oct 09, 2019 2:30 pm

I just used a spare 40mm 24v fan and had to wire the fan power into the power supply, I originally had issues with high temp filament so on all my printers they were converted to 24v cold end fans

Post Reply