3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Friendly reminder to print awkward models on an angle (aussie.zone)

submitted 3 days ago* (last edited 3 days ago) by [email protected] to c/3dprinting

21 comments fedilink hide all child comments

This is a battery cell case that was a pain last time I printed it with supports

Model: https://www.thingiverse.com/thing:5240533/files

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[–] [email protected] 6 points 2 days ago* (last edited 2 days ago) (1 children)

How? What mechanisms, conditions, etc, are we manipulating which produce such a significant effect? After a bit of searching I found this write up:

https://thor3d.ca/wp/the-effects-of-print-orientation-on-strength/

Is this what we're referring to? To summarize (if I've understood this properly): Printing at 45 degrees ensures none of the print's three axes are aligned with the printer's least accurate axis of movement.

[–] antimongo 2 points 1 day ago

Similar, but I believe the strength addition is also because it changes the directions of the Z-axis layers.

Most filament is rather strong in tension. If you imagine printing a regular cube, without rotation, it’s going to be strongest stretching or compressing the sides of the cube.

But if you pulled the cube apart from its top and bottom, the only adhesive strength is the fused connection between layer heights. Which is super weak.

By printing at an angle, the layer heights may be in a direction that doesn’t receive tensile load, making it functionally stronger.