[1mm nozzle advice]

geert, I will certainly keep posting results and thanks for the input.  Yellow, I think your idea makes sense to print a .3 height test to see if its under-extrusion.  Smart people on here eh?  Awesome advice all.

I am trying to eventually print nylon which adds another layer of complexity and I need a flexible nylon in particular.

My first print failed badly.  Lots of smoke of water vapor coming off during print and it was terrible results.  My tevo black widow couldn't maintain a 150 nozzle temp.  Gave me some kind of temperature fail message and stopped printing.

Guess I have to change my printer...

 

[1mm nozzle advice]

Slowed the print down from 25mm/s to 15mm/s and turned the coil fan speed up to 100%.  (it was at 50% but always seems to go at 100% no matter what I adjust it to)

 

kept all other settings the same as last print and here are the results.  Much better.

I have 2 prominent gaps on the walls and top is better but would hardly consider it neat.

 

So if you guys are up for some more questions:

1- are those gaps caused by under-extrusion and if so, why just at those 2 spots and the gaps go halfway around the cube.

2- would turning on combing significantly help the top layer cosmetically?  (I will just try turning it on and find out for myself)

3- do you notice any other issues I have not mentioned?  heat too high/low?

 

So I guess I'm just wondering about those gaps and if there is anything else I can do to clean up the print.

 

This was printed at:

15mm/s

.8mm height

1mm width

15% infill

2 walls

2 top/bottom layers

215 nozzle temp

60 bed temp

 

took 9 minutes to print.

 

[1mm nozzle advice]

Again, i cannot thank you guys/gals enough.  Will try everything you suggested

[1mm nozzle advice]

On 6/19/2019 at 10:19 AM, geert_2 said:

Two top layers is not enough to fill the roof smoothly. You probably need 4.

 

Further, on such a small object, I think it is not getting enough cooling: these thick sausages don't cool down and stay molten for too long, so they get dragged along and get deformed. Plus there is the hot nozzle sitting on top of this, radiating heat and preventing solidifying.

 

You will need to print multiple models at the same time, and bigger models. For a 1mm or 1.2mm nozzle, it will be hard to print details finer than ca. 1.5mm.

 

This is a guess, but it won't be far off, I think.   🙂

 

Lol “thick sausages”.  Makes sense but sometimes i am unsure if its not cooling enough or cooling too fast.  Will experiment with a fan for cooling.  Thank you for the advice and the chuckles.

will also try slowing down speeds and lowering the layer height as suggested.  

Thanks so much guys and i will update you on progress!!!

 

so nobody thinks this is an under extrusion issue?   My spool wheel is not smooth

[1mm nozzle advice]

On 6/19/2019 at 10:19 AM, geert_2 said:

Two top layers is not enough to fill the roof smoothly. You probably need 4.

 

Further, on such a small object, I think it is not getting enough cooling: these thick sausages don't cool down and stay molten for too long, so they get dragged along and get deformed. Plus there is the hot nozzle sitting on top of this, radiating heat and preventing solidifying.

 

You will need to print multiple models at the same time, and bigger models. For a 1mm or 1.2mm nozzle, it will be hard to print details finer than ca. 1.5mm.

 

This is a guess, but it won't be far off, I think.   🙂

 

Lol “thick sausages”.  Makes sense but sometimes i am unsure if its not cooling enough or cooling too fast.  Will experiment with a fan for cooling.  Thank you for the advice and the chuckles

[1mm nozzle advice]

My prints require speed vs detail so I changed my nozzle to 1mm.  Will consider 1.2mm if I can get this straightened out.

My prints are coming out horrific.  I have attached pics below.

my settings were:

1mm width

.8mm height

3 wall lines

2 layers top/bottom

215 nozzle temp 

60 bed temp

25mm/s print and infill speed

Any advice is greatly appreciated!!!

[Newbie test cube printing walls lines separated in pla]

Hello, I am following up with you regarding another issue.  You were so helpful last time thank you!

I switched my nozzle to 1mm because my prints need speed vs detail.

Not sure whats going on.  Is this under-extrusion again?

I printed a filament spoolholder but it's not so smooth and has to pull pretty hard for the spool to turn.

 

I printed at .8 layer height and 1 mm line width.  25mm/s speed, 215 nozzle temp, 60 bed temp, 15% infill, 3 wall lines and 2 top/bottom layers

Maybe that's a factor?  Any help is always appreciated!!!!

[Newbie test cube printing walls lines separated in pla]

Ok thanks again!!!!

-Paul

[Newbie test cube printing walls lines separated in pla]

I also increased the nozzle temp to 210.  Still to low?  Does the top layer seems lumpy on the perimeter lines?

[Newbie test cube printing walls lines separated in pla]

You are the best!  When I switched filaments I didn't tighten the feeder screws as much thinking I don't want to over-tighten.

The prints came out so much better now, but any other flaws in the print and/or advice you have is all greatly appreciated!

Thanks again so much.  I spent nearly a week changing cura settings....  I should have asked sooner.  Thank you again.  

[Newbie test cube printing walls lines separated in pla]

Thanks for the reply!!!!  I did loosen my feeder tightening screws and will try tightening them more and reprint.

Will follow up after re-printing!

 

[Newbie test cube printing walls lines separated in pla]

I had (somewhat) successfully printed a test cube with flexible filament but when test printing with pla, each wall line is completely separated from the other walls.  It looks like concentric infill vs a 3 line solid wall.  I did mess with cura settings in between the flex test cube and pla test cube.

I am using a tevo black widow with cura and the cube was downloaded from thingiverse.  

I have attached pics of the cube (bottom broke off) as well as pics of my cura settings.

Newbie question but appreciate any help!