3D Printing Today #557

[3D Printing Tips and Tricks]

News:
AI Model Generation; Backflip
https://3dprintingindustry.com/news/markforged-founders-launch-new-ai-3d-model-generator-backflip-with-30m-funding-led-by-nea-and-a16z-235400/
Theia
https://spare-parts-3d.com
Segments:
Showing off Full Contact result, Looking for the strongest filament, Diagnosing a print fail

Thing of the Week:
USB cable Extender holder
https://www.thingiverse.com/thing:6888563

threedprintingtoday.libsyn.com or
Search for 3D Printing Today wherever you get your podcasts

[JanE]

Full Contant result...

I am now officially part of the Cult of Full Contact Supporters!

The first try was a success with Bambu AMS lite, PLA print with PETG support interfaces.

The part that was needing supports was not in 90 degree angle, but a bit sloped, so the print needed 4 x PETG support layers interfaces. That is 8 filament changes, so not a huge deal if you think of material purged.

The underside was BETTER THAN I expected, and support was easy to peel of. This print was tiny, but I am sure to use this method in larger prints where the shape of the object won't need hundreds of filament changes.

Sure, I see people printing prints with thousands of filament changes, but no... that is not me.

Still a tiny bit tweaking to do to find the best possible setting of support layer patterns etc.

But as I said, the underside quality was good. Not as good as the top layers, but something that could not be achieved with break-away supports.

Where can I get my COFCS membership diploma?

Best regards 

JanE from Finland

[Bryan Murphy]

Got a picture of the results?

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[Kurt The 3D Printer GUY!!]

Hey there JanE - maybe Andy will 3D Print a Diploma for you!

But, HEY - VERY Funny stuff! I'm glad you really liked the Full Contact Support methodology. Especially since Andy has brought it up so many times in the Podcast. Not that it's a bad thing to keep repeating. But, the fun part is Whitney ALWAYS Making some kind of joke about it. 

And, yup - I've also done it before. Actually - did a print for part of a HUGE Star Wars Speeder - at Essentium - in PLA & PETG - had GREAT Success. I should show pics of that...

-K

[Ed Street]

Okay, I will bite on this one. Bambu Studio does NOT do this correctly; it's buggy at best, and some elements are missing from the slicer, i.e. its crippled with the interface layers.

[Kurt The 3D Printer GUY!!]

Yeah JanE - What Bryan said!

-K

[Kurt The 3D Printer GUY!!]

I'm curious about your comment Ed! 

Is the crippling specific to Support structures?

If so, potential work-around is what Andy has previously suggested - where you actually Model the supports - and thus Bambu just treats it like another object! At least In Theory...

-K

[Ed Street]

That 'solution,' if you can call it that, is very limited in scope; try it with internal chambers, i.e., pipes, and you will quickly understand the problem.  Next, try it on joints, and your print will quickly become non-flexible.  The limitation is restrictions put in place by Bambu for some reason that I don't understand, i suspect it was there long before Bambu copied it from something else. It is also carried over in Orca Slicer, but there are tickets to get that fixed.

You want:

Top interface spacing 0

Bottom  interface spacing: 0

Interface pattern: I find rectilinear interlaced the best

Top Interface layers: 3 (the max and where the problem is at; it should be user input and not limited)

Bottom Interface layers: same as top layer.

Top Z distance: 0

Bottom Z distance: 0

Style: snug

Pattern angle: you set to change it as needed for that object.  You can also set modifiers for each object to have its unique angle.

Support/Raft base and Support/Raft Interface would be your support filament, like Aquasys, which works superbly with this.

[JanE]

Dunno if Bambu Studio is crippled and missing some slicer setting that other slicers have. For example, I could not find thus "Style: Snug" anywhere.
But the results turned out to be fine.

I used "Top interface spacing 0", " Interface pattern:  Rectilinear interlaced", " Top Interface layers: 2" and "Top Z distance: 0.0mm".
Definitely I need to tinker with these setting a bit. I just got to find a model that needs supports in every possible orientation and has a flat surface that needs to be supported.
The object I printed did not have a flat surface, but the angle was that close to 90 degrees and the object was so small that it was only 4 layers that needed support interfaces.

-JanE

[JanE]

Got a picture of the results?

Yes, attached!

This is a very small object, 15mm wide and 40mm tall. The supported section was 2-3mm wide.
But the underside is MUCH better than with break-away supports, it would be way more marred. And if you would increase the "Top Z distance" the quality would suffer. 

Closer to the top layer quality, I think you be improved with the settings. Just gotta try some bigger objects.

-JanE

[Kurt The 3D Printer GUY!!]

Hey Andy - did you ever show us pics of the part you printed with Full Contact Support? Even in the podcast - you said you would take a pic to share on the forum here!

Funny how you compared your part to a part printed on a Mojo - like what I own. 

-K