Supporting > Casting

What Fillament, wall thickness and fill percentage for Patterns?

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Jasonb:
Can I ask what Fillament people are using for their patterns as well as the wall thickness and percentage of fill.

These are for patterns that will be sent to a foundry so may not be handled quite as gently as ones cast at home. Sand will be Airset. Castings upto about 2.5kg (5lbs) in iron.

Had a few failures of the first patterns off the Bambu P1S particularly when the 0.2mm nozzle was used. I'm not doing the printing so it's a bit third hand but will try and get the settings used.

Twizseven:
Jason,
I will check what my settings were. I’m pretty sure I just took the defaults that Prusa gave me for the last patterns I did for Graham
Colin

Jasonb:
Thanks Colin.

Twizseven:
Jason,

I was using the standard defaults,I did not change anything.  So : Prusa PETG filament on a Prusa I3 MK3, Infil was 15%, Print Settings 0.05mm ULTRADETAIL

Colin

AOG:
The thing to remember is that 3D prints are basically a semi-monocoque structure. The majority of the strength is in the walls. For anything non-tooling my general settings are .2 layer height with 25% infill. 7-10 layers for the top, bottom and side's. For better dimensional accuracy on the top of the print increase the infill percentage near the top. It doesn’t make the print that much stronger but the reduced spacing between the infill pattern reduces the bridging when laying down the first top layer. That reduces sag on the top layer and increases accuracy.

Tony

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