Search found 328 matches

by jim2386
Thu May 30, 2019 3:58 pm
Forum: User's Gallery
Topic: What is Happening??? Lulzbot Taz 6
Replies: 2
Views: 449

Re: What is Happening??? Lulzbot Taz 6

You have layer shifting. Depending on how the part was oriented on the bed will tell you which axis is shifting. Usually this is caused by binding and the troubled axis skipping stepper motor steps.
by jim2386
Mon Apr 22, 2019 9:54 am
Forum: LulzBot Mini
Topic: Thermal Runaway Problem
Replies: 2
Views: 452

Re: Thermal Runaway Problem

When I had this problem, the power wires in the cable chain connected to the bed were broken. When the bed was in one position it would heat just fine, but when the bed moved, the wires would make/break contact and would throw up a thermal failure. I'd start there.
by jim2386
Mon Apr 22, 2019 9:52 am
Forum: LulzBot Mini
Topic: Filament goes wild on reel with long prints - Mini 2
Replies: 8
Views: 673

Re: Filament goes wild on reel with long prints - Mini 2

Is it possible your filament is twisting as it prints? I had this happen with ninjaflex using my old flexystruder toolhead. You can test this by taking the spool off the holder while it's printing and rotating the spool either clockwise or counter clockwise (not through the axis the holder goes thro...
by jim2386
Mon Feb 25, 2019 9:22 am
Forum: LulzBot Mini
Topic: Mini 1 stops printing in middle of print.
Replies: 14
Views: 1265

Re: Mini 1 stops printing in middle of print.

If it's a mini 1, most likely it's your heater wire in your cable chain connecting to your heat bed. I've replaced it 3 times on my mini 1. The third time I got the mini 2 cable chain and Lulzbot was able to make me a mini 2 cable with Mini 1 connectors on it for a fee. It's MUCH more robust than th...
by jim2386
Mon Feb 25, 2019 9:14 am
Forum: LulzBot Mini
Topic: Printer disconnecting mid print
Replies: 2
Views: 265

Re: Printer disconnecting mid print

In my history, this usually indicates a bad thermistor either in the toolhead or the heat bed or a broken wire in the two. The firmware tries to heat up the elements and if the thermistor doesn't respond as the firmware expects, it stops the print with a thermal runaway error service halted. It's a ...
by jim2386
Wed Sep 05, 2018 1:58 pm
Forum: LulzBot TAZ
Topic: Taz 6 Aerostruder Z Axis Won't Home
Replies: 6
Views: 794

Re: Taz 6 Aerostruder Z Axis Won't Home

I upgraded my stock taz toolhead to the aerostruder toolhead and updated the firmware for it. Now my Z Axis doesn't home. The z axis just goes up instead of down when above the z min switch. Has anybody else had this issue? I've tried all the latest firmware from 1.1.5 to 1.1.9. Did you make sure w...
by jim2386
Wed Sep 05, 2018 1:55 pm
Forum: LulzBot TAZ
Topic: Extruder Head encased itself in ABS overnight!
Replies: 5
Views: 408

Re: Extruder Head encased itself in ABS overnight!

There is an attachments tab next to the options tab.

In this case I'd say acetone is your only hope. Just remember all the other plastic pieces on your toolhead are ABS so you don't want to get those soaked. I mean....what's hte worst that oculd happen right? :)
by jim2386
Wed Sep 05, 2018 1:51 pm
Forum: LulzBot Mini
Topic: Printing issues after firmware update.
Replies: 3
Views: 483

Re: Printing issues after firmware update.

It may be nothing, but your Z offset is HUGE and has me suspicious. Typical Z offsets are usually 0.02.....0.1 mayyyyybe 0.15. Having it over 1mm makes me think leveling isn't working correctly or you're not setting your Z height correctly. Not an answer you're looking for, but it's something that s...
by jim2386
Fri Jul 27, 2018 10:27 am
Forum: LulzBot Mini
Topic: Flat Face Blues
Replies: 11
Views: 1098

Re: Flat Face Blues

That last picture, while flat, it borderline overextrusion which can lead to other issues depending on what filament you use. A good first layer should have discernible nozzle passes. If they're smooshed together too much, you're going to build up nozzle back pressure and risk grinding. Just somethi...
by jim2386
Thu Jul 26, 2018 2:01 pm
Forum: LulzBot TAZ
Topic: Filament grinding
Replies: 37
Views: 3587

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 ...