Search found 38 matches

by killacycle
Sat May 14, 2016 10:35 pm
Forum: LulzBot TAZ
Topic: Successful Printing???
Replies: 9
Views: 1942

Re: Successful Printing???

Nozzle clogging with PLA is a common problem called "heat creep". There is a thread all about it: https://forum.lulzbot.com/viewtopic.php?f=29&t=4200 The Taz 6 abandoned the tiny blower and uses a huge 40mm fan to cool the heat sink. This works, but I think this 40mm fan is a bit overkill. https://d...
by killacycle
Tue May 10, 2016 11:29 pm
Forum: Filament
Topic: PLA Expanding in the extruder head
Replies: 10
Views: 2477

Re: PLA Expanding in the extruder head

The tiny blower is 5 volts. When I decided to build my heatsink duct, useing a 25mm fan, I bought a 25mm, 5 volt fan so it would simply swap for the stock 5 volt blower. It isn't clear what you what to do. If you want to do the 25mm fan and the duct I designed, then you will want to adapt the fan to...
by killacycle
Mon May 09, 2016 4:47 pm
Forum: Filament
Topic: PLA Expanding in the extruder head
Replies: 10
Views: 2477

Re: PLA Expanding in the extruder head

The Taz6 (and later editions of everything) have a single large connector for everything. Makes it less confusing. Nothing to mix up. You extract the pins that are for the fan, and replace them with the new ones from the new fan. The board is still a RAMBO board, so the fans should be compatible. Ha...
by killacycle
Sat May 07, 2016 10:26 am
Forum: Hardware
Topic: clog issue with hexagon hot end
Replies: 21
Views: 4346

Re: clog issue with hexagon hot end

You are very likely experiencing what has been called "heat creep". Heat creep is typically is not a problem in ABS, however. It is a more typical problem in PLA. ABS filament is less conductive and has a sharper melting point than PLA. The real problem turns out to be the ineffective heat sink fan....
by killacycle
Thu May 05, 2016 6:26 pm
Forum: LulzBot Mini
Topic: New User Questions
Replies: 4
Views: 1282

Re: New User Questions

We have a 450 KVA UPS and it carries the printer through "glitches" wonderfully. It won't last through a big power failure, but the glitches are far more common in our neighborhood than power failures. We get a glitch maybe one or two times per week, and a power failure maybe once every few years.
by killacycle
Thu May 05, 2016 6:22 pm
Forum: LulzBot Mini
Topic: New User Questions
Replies: 4
Views: 1282

Re: New User Questions

The blue printer's tape works great on most filaments. The slightly textured surface of the tape is mirrored in the part, however. Not a big deal for most prints. If you are printing NinjaFlex, you should do that on plain glass. ABS and Nvent print perfectly on the stock Taz heated plate surface, bu...
by killacycle
Wed May 04, 2016 1:59 pm
Forum: Filament
Topic: PLA Expanding in the extruder head
Replies: 10
Views: 2477

Re: PLA Expanding in the extruder head

You are getting what is called "heat creep". It turns out to be a common complaint with PLA. (No one tells you this. You have to figure it out yourself.) On the Taz6, they replaced the tiny blower that cools the heat sink with a 40mm fan and a duct. Cured the heat creep problem with PLA. The big fan...
by killacycle
Sun May 01, 2016 7:05 pm
Forum: Filament
Topic: Makergeeks PLA filament?
Replies: 43
Views: 16669

Re: Makergeeks PLA filament?

Here is the Lulzbot link to the Taz6 30mm fan heatsink duct:
https://devel.lulzbot.com/TAZ/Olive/pro ... t_v0.6.stl
by killacycle
Sun May 01, 2016 6:56 pm
Forum: Filament
Topic: Makergeeks PLA filament?
Replies: 43
Views: 16669

Re: Makergeeks PLA filament?

It sounds like you are going though the same difficulties we were. We actually broke an idler too. You are very likely experiencing what has been called "heat creep" in PLA. It can help a bit to reduce the retraction distance, frequency, etc. We discovered that the filament would grind/jam during th...
by killacycle
Fri Apr 29, 2016 11:08 pm
Forum: Filament
Topic: PLA Heat Creep - SOLVED
Replies: 41
Views: 18854

Re: PLA Heat Creep - SOLVED

All muffin fans are not created equal. What you look for is "ball bearing(s)" or Sunon's "vapo-bearing" instead of "sleeve" bearings or no specifications at all. Muffin fans without any bearing specifications are typically sleeve bearings, which are the least rugged, shortest lifespan, but are also ...