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by zemlin
Thu Mar 25, 2021 5:28 pm
Forum: Troubleshooting and Bug Reports
Topic: Top layer perimeter shell gaps
Replies: 10
Views: 913

Re: Top layer perimeter shell gaps

The issue with speed is the cumulative effects of the heating power in the hot end, thermal conductivity of the nozzle, thermal conductivity of the plastic, and the volume of plastic being pushed through the nozzle. Going from a .4mm to .6mm nozzle diameter increases the amount of material being ext...
by zemlin
Wed Mar 24, 2021 9:46 pm
Forum: Troubleshooting and Bug Reports
Topic: Top layer perimeter shell gaps
Replies: 10
Views: 913

Re: Top layer perimeter shell gaps

I think it's unlikely to see features like pressure/linear advance in a slicer due to the complexity of the G-Code required to replicate what's being done in firmware. My printers are direct rather than bowden. I replaced my controller boards this summer with Duet Wifi boards and the pressure advanc...
by zemlin
Mon Mar 22, 2021 4:12 pm
Forum: Troubleshooting and Bug Reports
Topic: Top layer perimeter shell gaps
Replies: 10
Views: 913

Re: Top layer perimeter shell gaps

Why bother asking questions when you think you already know everything? 3D printing isn't a perfect process. There are a bazillion variables. Sometimes you need to tweak things to get the best results. As far as stretching, look at the diameter of the bead as it exits the nozzle. It will be larger t...
by zemlin
Sun Mar 21, 2021 4:52 pm
Forum: Troubleshooting and Bug Reports
Topic: Top layer perimeter shell gaps
Replies: 10
Views: 913

Re: Top layer perimeter shell gaps

Was the cura part printed with the same size nozzle? The perimeters don't span nearly the same width.
by zemlin
Sun Mar 21, 2021 3:20 pm
Forum: Troubleshooting and Bug Reports
Topic: Top layer perimeter shell gaps
Replies: 10
Views: 913

Re: Top layer perimeter shell gaps

I always run the extrusion width 115-125% of the nozzle diameter. With them equal you're stretching the filament while printing. If you have solid infill printing slower, it could be that you're printing the perimeters too fast. I find some materials do better when I reduce the extruder multiplier o...
by zemlin
Fri Mar 19, 2021 5:40 pm
Forum: General Discussion and Tips
Topic: Wall Print Order - Inside-Out Inconsistent
Replies: 2
Views: 345

Re: Wall Print Order - Inside-Out Inconsistent

Please share your factory file. Without seeing the part and how you have it set up, not much to offer.
by zemlin
Wed Mar 10, 2021 10:07 am
Forum: General Discussion and Tips
Topic: New printer can't handle unsupported overhangs
Replies: 8
Views: 1076

Re: New printer can't handle unsupported overhangs

For significant overhangs, I keep the layer height below 50% of the extrusion width. With PLA I would definitely have the fans running full bore on overhangs.
by zemlin
Fri Mar 05, 2021 3:08 pm
Forum: Troubleshooting and Bug Reports
Topic: Updater broken.
Replies: 3
Views: 863

Re: Updater broken.

#sarcasm perhaps?
by zemlin
Wed Mar 03, 2021 2:41 pm
Forum: General Discussion and Tips
Topic: Nozzle diameter impact on Extrusion multiplier
Replies: 8
Views: 679

Re: Nozzle diameter impact on Extrusion multiplier

20181105ok wrote:
Wed Mar 03, 2021 1:10 pm
This seems to need some careful balance.
It's going to depend on how much power you have on your hot end, and could be impacted by PID tuning.
by zemlin
Wed Mar 03, 2021 12:51 pm
Forum: General Discussion and Tips
Topic: Nozzle diameter impact on Extrusion multiplier
Replies: 8
Views: 679

Re: Nozzle diameter impact on Extrusion multiplier

In my experience, a large (0.6+ mm) nozzle often allows larger layer height, but the speed need to be slowed down. The net result is often lower resolution and almost the same print time. I'm curious about why you still want to use a large nozzle. Thank you! That is not my experience. When required...

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