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addaon
A lot of these tricks are used to print UAV / RC wings with internal structure, often out of foaming filaments to reduce weight.
beeflet
Why not use normal printing techniques with low or no infill? Or just design the parts with internal cavities
stevenhubertron
Vase mode has been around for quite some time and a very popular way to print quickly.
cyclotron3k
Interesting and useful article, but:

> If you are new to 3D printing and/or CAD for 3D printing, this is not the right article for you.

I feel like I would have been fine with this article about a week into my 3d printing journey.

VorpalWay
Original author of the blog post here. Cool to see that people like this post enough for it to show up on HN (never had a account here until now).

If you have questions related to the blog post, feel free ask.

mg
I often wonder if there should be something like a "folded outline" mode in slicers. For example, it would make the outer left wall of an object:

    │││││││
    │││││││
    │││││││
    │││││││  Inside of the object
    │││││││  is here
    │││││││
    │││││││
    │││││││
Look like this instead:

    ┌────
    └─────┐
    ┌─────┘
    └─────┐ Inside of the object
    ┌─────┘ is here
    └─────┐
    ┌─────┘
    └─────
The seam (where the print head moves up a layer) could then be on the inside of the object:

    ┌────
    └─────┐
    ┌─────┘
    └─────  <-- Print head moves up here
    ┌─────┘
    └─────┐
    ┌─────┘
    └─────
This might result in having no visible seam but instead evenly distributed vertical lines, similar to the horizontal lines that all 3D prints have. The horizontal lines look quite nice when the print is otherwise perfect. So maybe doing this and having horizontal AND vertical lines would look good overall?
exasperaited
This would work in theory but quality would be exceptionally reliant on a well-calibrated printer, because you are asking it to do the thing that introduces the most motion variation: abrupt changes of direction.