Search found 1624 matches

by kcchen_00
Sat Nov 17, 2018 1:55 am
Forum: Filament
Topic: Surface Finish
Replies: 7
Views: 86

Re: Surface Finish

Glad it helped.

Reducing the flow rate too much can affect the layer adhesion and reduce the strength of the project - increasing extrusion temps by a degree or two can help. It can also affect dimensional accuracy (smaller dimension). I like to stay near 95% as a minimum.
by kcchen_00
Fri Nov 16, 2018 3:08 pm
Forum: Filament
Topic: Surface Finish
Replies: 7
Views: 86

Re: Surface Finish

Hmm... I'm still trying to figure out what that diagonal seam might be... It looks like the nozzle dragging across the surface, but that typically produces a straight line (well, more straight line). Turn the fan on to help set the plastic, if its not on already. I like 8-20% for ABS (past 4 layers ...
by kcchen_00
Thu Nov 15, 2018 10:40 pm
Forum: Hardware
Topic: When to replace the nozzle
Replies: 7
Views: 132

Re: When to replace the nozzle

Try adjusting your initial layer settings... usually there's a layer height setting which you can try reducing. You can try "rejuvenating" the PEI by roughing up the surface with fine grit sandpaper. I use a scotchbrite pad in a cross-hatch pattern. The alcohol cleans, but may leave a film/residue t...
by kcchen_00
Thu Nov 15, 2018 10:33 pm
Forum: Hardware
Topic: 1.75 mm Filament Options
Replies: 1
Views: 32

Re: 1.75 mm Filament Options

Buckling after the hobbed bolt will only happen when printing soft filaments. There are modified extruder bodies with the gap after the hobbed bolt. If you're using the PTFE tubing, it shouldn't extend into the hot portion of the hot end... it will only be in the body. With that said, its easy enoug...
by kcchen_00
Thu Nov 15, 2018 10:26 pm
Forum: LulzBot TAZ
Topic: TAZ 5 Dual Extruder Nozzle Leveling
Replies: 2
Views: 26

Re: TAZ 5 Dual Extruder Nozzle Leveling

I've found that rotating the right lead screw can also raise the second nozzle. CW raises, and CCW will lower. Try an 1/8 of a turn at a time (which would be ~.25mm).

Just be careful not to put too many turns which can make skew the x-gantry and cause binding.
by kcchen_00
Thu Nov 15, 2018 10:18 pm
Forum: Filament
Topic: Surface Finish
Replies: 7
Views: 86

Re: Surface Finish

More pictures may help... but that looks like overextrusion. Try reducing the flow rate to 95-97%.
by kcchen_00
Sun Nov 11, 2018 8:50 pm
Forum: LulzBot TAZ
Topic: Dual Head V3 opinions please
Replies: 1
Views: 47

Re: Dual Head V3 opinions please

The temp issue on the Dual V3 was due to the hotend thermister(s) being poorly crimped. The LB PSA has the range of serial numbers which were affected... call the store and ask them to provide the serial number. With that said, the thermister is easy to change out... ~15min. Remove toolhead, remove ...
by kcchen_00
Sun Nov 11, 2018 1:11 pm
Forum: LulzBot TAZ
Topic: Nozzle diameter, and diameter of extruded material
Replies: 2
Views: 55

Re: Nozzle diameter, and diameter of extruded material

That's interesting... Maybe its the precision of the digital calipers? Do you have metal feelers to check the calipers?

I'll have to try this sometime.
by kcchen_00
Mon Nov 05, 2018 2:58 pm
Forum: LulzBot TAZ
Topic: Taz 5 Stringy Print
Replies: 6
Views: 97

Re: Taz 5 Stringy Print

Definitely a lot more going on there than just stringiness... A mwester said, it looks like something is loose. It looks pretty extreme for z-wobble, but not ruling out. Check: - Toolhead secured to x-carriage - Grub screws tight on the lead screw couplers - GT belts on X and Y - TIghten x-carriage ...
by kcchen_00
Sun Nov 04, 2018 1:13 pm
Forum: LulzBot Mini
Topic: Mini 2 with OctoPrint?
Replies: 4
Views: 127

Re: Mini 2 with OctoPrint?

The LCD shouldn't affect Octoprint... and vice versa. They are completely different systems. Octoprint is just streaming/sending g-code to the printer. Its not an extension of the printer's firmware. While printing through Octoprint, don't use the LCD menu functions. Pause or stop the print in Octop...