Page 1 of 4

Budaschnozzle 2.0 PLA Fix

Posted: Mon Jun 24, 2013 3:16 pm
by Orias
As some of you may be aware, we've been looking into the reports that some Budaschnozzle 2.0 users have been encountering issues when printing with PLA, such as pooling on top of the heater block. Thank you for your help and patience while we looked into resolving this. We have three tested solutions. You will want to choose one based on how often you expect to change nozzles. More information can be found here: https://www.lulzbot.com/?q=support/buda ... a-solution. Thank you again!

Re: Budaschnozzle 2.0 PLA Fix

Posted: Tue Jun 25, 2013 7:27 am
by geneb
Why does using PTFE tape on the nozzle threads make it permanent? I ask because I JUST did that last night - the PFTE tape has no adhesive on it, so I'm not sure what makes it permanent.

tnx!

g.

Re: Budaschnozzle 2.0 PLA Fix

Posted: Tue Jun 25, 2013 8:23 am
by antfurn
I too, was wondering the same thing.

Antony (has an AO-101, but just ordered a Buda v2 and extra nozzles for it)

Re: Budaschnozzle 2.0 PLA Fix

Posted: Tue Jun 25, 2013 11:18 am
by 1013
someone suggested running ABS thru the nozzle first, to help seal it up...then use PLA. Does that work?
I have not tried PLA yet, but have been printing plenty of ABS and nylon.

And wasn't there an out-gassing issue with getting PTFE too hot. seems like the tape will be getting VERY hot.

Re: Budaschnozzle 2.0 PLA Fix

Posted: Tue Jun 25, 2013 11:39 am
by Orias
When we tested the PTFE tape on the threads for the nozzle we found that they would bind and made removal rather difficult.

Re: Budaschnozzle 2.0 PLA Fix

Posted: Tue Jun 25, 2013 12:03 pm
by geneb
I carefully grip the heater block with a pair of channel-lock pliers before I try to remove the nozzle and I haven't noticed any difficulty.

I've finally gotten all my "derps" fixed with my TAZ and I'm going to be running it hard for the next few days. I'll let you know how the ptfe at the nozzle works out. :)

g.

Re: Budaschnozzle 2.0 PLA Fix

Posted: Thu Jul 11, 2013 2:08 pm
by GjBob
I'm now only printing with pla. If i choose one of the tree solution will i have any problem if i decide to print abs?

Do you know a method to clean well the scrap pla that deposited all around the threads and the heater block?

Re: Budaschnozzle 2.0 PLA Fix

Posted: Fri Jul 12, 2013 6:05 am
by geneb
When I cleaned mine off, I brought it up to temperature and used a cotton swab to grab all the plastic out of the threads. It worked very well.

The teflon tape on the nozzle works great - zero leaks in about 10 hours of printing so far.

g.

Re: Budaschnozzle 2.0 PLA Fix

Posted: Sun Aug 18, 2013 2:44 pm
by Tom_Neverwinter
Why is this not done to the heater block right off the bat!!!


after using my new hot end, for a week now after finally hooking it all up, I notice that the extra material dripping down my barrel is actually a problem and a known problem at that.
so after reading through the forum I find this solution, however;
my heater block will not detach from the threaded rod.
it is at 160 C, I have also tried at 185 C

why was this problem not discovered before it was released to the public?

update;
make a picture depicting the heater block set screw!!!! and label in RED

Re: Budaschnozzle 2.0 PLA Fix

Posted: Mon Aug 19, 2013 2:58 pm
by Orias
In our testing of the Budaschnozzle 2.0 hot end we did not see the problems with PLA. Due to a number of users seeing the issue we presented fixes if they are seeing problems with PLA.

I would recommend retrying at 160C and moving it little by little, back and forth, you'll also want to make sure that the heater block set screw is loosened. If the heater block still cannot be moved and you cannot use any of the suggestions you can send an email to [url=mailto:support@lulzbot.com]support@LulzBot.com[/url] to start the exchange process.