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EMBODY³ ACADEMY · WITH SPOOLBERT

3D printing, explained.

One printing problem per episode. Why it happens, how to fix it, and a free model to test the fix yourself.

Start hereWhat's wrong with my print?
Free STLwith every episode
2–4 minone problem, one fix
3 new fixesevery week
8 languagessubtitled
Spoolbert

The learning path

Three steps, from your first print to designing your own parts. Jump in wherever you are.

Step 1

First prints

Get a good first print and understand your machine.

Start HereMachine Room
Step 2

Better prints

Fix failures, pick the right material, tune the slicer.

You AskedFail of the WeekPrint MathMaterial MatchMyth Busted
Step 3

Design your own

Design parts that print well, and finish them like a pro.

Can You Print This?Design ChallengeWorkshop

Nine series

Start Here

Your first weeks with a printer.

2 episodes

Machine Room

How printers work and how they differ.

1 episode

Print Math

Slicer settings, calculated.

1 episode

Material Match

Which filament for which job.

1 episode

Fail of the Week

One failed print, the cause and the fix.

1 episode

Myth Busted

Stubborn myths, put to the test.

1 episode

Can You Print This?

Designing parts that actually print.

2 episodes

Design Challenge

Clever printable mechanisms.

2 episodes

Workshop

Finishing: inserts, sanding, painting.

1 episode

You Asked

Real questions from makers, answered.

Coming soon

Latest episodes

Workshop #01

Stripped screw holes in prints? Heat-set inserts, done right

Screws straight into plastic wear out. A heat-set insert gives your print a real brass thread. The trick is the hole: a bit smaller than the…

Design Challenge #02

Snap-fits that don't snap off: make the arm longer, not thicker

Why do snap-fit hooks break? Bending stretches the arm's outer skin, and that strain grows with thickness but drops with the length squared.…

Design Challenge #01

Print a hinge that's already assembled (0.35 mm is the secret)

Can you print a hinge that comes off the bed already assembled? Yes — if you get one number right. Both leaves are printed inside each other…

Can You Print This? #02

Droopy sideways holes? Teardrop holes fix them (no supports)

Round holes that lie sideways print with a droopy ceiling: the top quarter of the circle hangs flatter than 45°, so the last layers are prin…

Can You Print This? #01

Same overhang, two results: why chamfers print and fillets droop

Both arms overhang the same 20 mm. The left underside is a 45° chamfer, the right one a fillet. The fillet becomes almost horizontal near th…

Myth Busted #01

Is 100% infill worth it? What the beam math says

Is 100% infill worth it? It is stiffer — but in bending, the outer skin carries most of the load. That's why beams are I-shaped and tubes ar…

What's wrong with your print?

Pick what you see. Spoolbert shows you the episode that explains it.

Why the bottom of your print is too widePrinting with a 0.2 mm nozzle: tiny details, new rulesStringingPressure advance: which calibration to trustWarpingMax volumetric speed: why a bigger nozzle is not faster

The model vault

Every model from every episode. Free to print, ready to slice.

Browse the vault (20)

No printer, or no time?

Spoolbert is made by EMBODY³, a 3D printing studio in Belgium. We print any model from the Academy for you, or design a custom version. Free quote within 24 hours.

Get a print quote

Questions

Is everything free?

Yes. Every episode, every model and every print sheet is free. Academy Plus will add extras later; the episodes stay free.

Which printer do I need?

Any FDM printer. Spoolbert explains how things work, not one brand. Settings are shown as they appear in Bambu Studio, with a note when other slicers name them differently.

Why is the video in English?

Spoolbert speaks English, and every video has subtitles in eight languages. They switch on automatically in your language.

Can I sell prints of the models?

The models are free for personal use (CC BY-NC 4.0). For commercial use, contact hello@embody3.com.

How often is there a new episode?

Three times a week: Monday, Wednesday and Friday at 17:00 (Brussels time).

Academy Plus is coming

Extended models, print profiles for your printer and early access to new episodes. Join the waitlist and be the first to know.

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