Search found 22 matches

by JRAlvarez
Fri Aug 10, 2018 9:31 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

Yeah I’m just saying that there’s been sooooo much discussion here on these forums about failed prints with PLA filament. Let’s understand that PLA has one of the lowest melting points of the most common filaments and is one of the cheapest filaments price wise. Unfortunately it’s melting point is ...
by JRAlvarez
Mon Aug 06, 2018 8:17 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

Cleaned the hobbed bolt with a brush and then a dental pick (gently) to make sure there wasn't anything stuck in there. I had the same thought about settings, So I reverted to default, had a worry that it wasn't properly resetting to default, then discovered that there was a newer version of LB cura...
by JRAlvarez
Mon Aug 06, 2018 7:26 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

Upgrade your print head to the Aerostruder and be sure to purchase and put on the silicone soc. I’m able to do 12 hour prints with PLA with this print head (and this is with a .2mm nozzle) Filament is really easy to load with the aerostruder print head too. The stock printhead would often fail in a...
by JRAlvarez
Mon Aug 06, 2018 7:25 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

What tool head are you using? Stock. Noctua has a 40x40x10mm (NF-A4x10 5V) fan that has a slightly higher output than the stock fan and a 40x40x20mm fan (NF-A4x20 5V) that is definitely higher output than the stock fan (but will require 10mm longer screws). The manufacturer of the stock fan has hig...
by JRAlvarez
Mon Aug 06, 2018 7:16 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

Working with PLA it honestly could just be an ambient temperature issue, PLA likes quite a bit of cooling and I'm not sure about where you are but it is still pretty dang warm out here and if the air surrounding the printer is especially warm it just won't be as effective at cooling the nozzle. I k...
by JRAlvarez
Thu Aug 02, 2018 11:48 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

To recap. I still haven't solved this issue. * Without the enclosure prints still fail. * If I point a rather powerful fan at the printer during prints I succeed. So, this is heat creep isn't it? Since the addition of extra cooling allows your prints to finish successfully it sounds pretty definiti...
by JRAlvarez
Wed Aug 01, 2018 9:28 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

To recap. I still haven't solved this issue.

* Without the enclosure prints still fail.

* If I point a rather powerful fan at the printer during prints I succeed.

So, this is heat creep isn't it?
by JRAlvarez
Wed Aug 01, 2018 9:20 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

Back off on your flow rate a few percent. One cause of filament grind is having your flow rate too high. I had this exact problem. Reduce your flow rate to the point where on your first layer each nozzle pass of filament just touches the one next to it. If you overextrude, nozzle pressure builds up...
by JRAlvarez
Wed Jul 25, 2018 10:59 am
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

you could try adding a small desk fan or possibly turning down your print temperature slightly. What brands of PLA have you tried? What settings were you using to print? So, the print that failed most recently with the enclosure removed. I tried that print again with a fan pointed at the printer, i...
by JRAlvarez
Wed Jul 25, 2018 10:56 am
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3013

Re: Filament grinding

I found it on thingiverse, and printed some out and changed all my extruders to use it last year. https://www.thingiverse.com/thing:2417662 Your fan can be picking up little strands of filament and wrap them around the shaft of the fan, which over time as they build up slows the fan down. Cool than...