Magic Bookmarks - FREE

4 FREE models of completely flat bookmarks with magic 'patterns'
When you look at them from different angles the surface reflects the light in different way making a nice effect

Full set of 30 bookmarks is here:
https://cults3d.com/en/3d-model/various/magic-bookmarks

Link to full 360 video
This set: https://www.instagram.com/p/Ci-SD9ANsI_/?img_index=2
Gold from full set: https://www.instagram.com/p/Ci3E6DztH1n/
Dual-color from full set: https://www.instagram.com/p/Ci47-b-toAJ/

There are three models versions
0.4mm and 0.5mm high - pattern only on one side
0.6mm high - pattern on both sides

All printed models with file names are on photos
Warning: models view in slicer will look different, use proper slice options (below) and see layer view then - you will get what you see on photos

Models made in Blender 3D
Printed on Voron 0.1 with 0.4mm nozzle with Silk Gold PLA from Devil Design
Blue ones were printed with dual-color filament (3DJAKE MagicPLA Metallic Emerald)
I'm recomending to use a simiar filaments for this models for a nice reflections on prints

More bookmarks in my collection:
https://cults3d.com/en/design-collections/c47/bookmarks

Update 31 V 2023
Added 0.5mm versions
Print it like 0.4 (first layer 0.2, rest 0.1). 3 top layers, instead of 2, will cover imperfections much better

Use a CONCENTRIC infill for first layer with 0.2mm height
Then change to 0.1mm layer height for next two layers with lines or zig-zag pattern
And then (if you print 06 models) 0.2mm layer height again with concentric infill again - In Cura you can easly use a 'Top skin pattern' for the last layer for this
Print on glass or simmilar flat surfaces (you can flip the model to have a pattern on top if you use some textured bed plate or your printer makes nice top layers and you want to have a nicer back - you can use ironing then too)

This way the bookmarks should be strongest and look best
You can print whole model with concentric infill too but it will be weaker

If there is no pattern shown in Layer View in PrusaSlicer you will need to change 'Slice gap closing radius' to 0. This should help

You will need a good bed adhesion, especially with some of the models
Flip models if you will have problems

You can use little highier flow for external walls on first layer. You will get rid of possible small gaps

One model on photos was printed flipped for a test (and I tested some 06 versions too)
It look a little worse on pattern side but I wonder if you see wich one it is :)