Issues with prints

[jheikkila54]

Good Morning All!

OK so I posted here before about my issue with corners rounding. I have made adjustments and still have the issue. Here is what I have done:

tightened belts aswell as added belt tensionors
Slowed jerk down to 15
Slowed acceleration down to 500
Printing at 30mm/s

I am at a loss on what to do. I have attached two photos showing what is happening.

Help Obi Wan Kenobi, your my only hope...1.jpg2.jpg

[voodoo28]

What size filament , what temp and extrusion multiplier are you using?

[jheikkila54]

I am using 1.75 filament, at 210, with a .92 multiplier

[jheikkila54]

I also use a cooling fan that is on all the time

[voodoo28]

Try setting your:
Nozzle Diameter to :.35
Extrusion Multiplier: .90
Extrusion Width : .40

Turn off fan just to test..
Make sure your retraction settings are set as well.

[jheikkila54]

Just to be clear, I should set my nozzle diameter to .35 (.05 smaller then what I have)? What do you recommend for the retraction settings? I believe I have that set to 5mm I would have to check

[voodoo28]

yes, set it a bit smaller...retraction settings depend on your setup...I use E3d 1.75. My retraction is set to 2mm at 15mm/sec.

[jheikkila54]

Great! I will input these settings, and give it a shot tonight. I will report back with my findings. Thank you Voodoo for your help!

[kablahz]

Try setting your:
Nozzle Diameter to :.35
Extrusion Multiplier: .90
Extrusion Width : .40

Turn off fan just to test..
Make sure your retraction settings are set as well.

Voodoo why do you set the nozzle size .05 smaller than the actual size? I am curious as we have the same setup.

[voodoo28]

Voodoo why do you set the nozzle size .05 smaller than the actual size? I am curious as we have the same setup.

It will eliminate the back and forth filling between two thin walls..
I saw this on a video from 3d Hangouts..
see here for better explanation: https://youtu.be/grRQ8MWkf0A?t=26m