Electrolysis rust-removal tank — 3D-printable model preview

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Finishing & painting Medium

Electrolysis rust-removal tank

Strip rust off old tools overnight with washing soda and a battery charger

The restorer's secret for rusty tools. Fill the tank with water and a tablespoon of washing soda per litre, slide scrap steel plates into the slots at each end and connect them to the + clip of a 12 V battery charger. Hang the rusty tool from a rod through the two top holes and connect it to the - clip. Tiny bubbles start at once, and by morning the rust has turned to loose black flakes that wipe off, leaving the clean metal and even the stamped markings underneath untouched.

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Size: 200 × 120 × 120 mm
Shape: Rectangular
Walls: 2.4 mm
Volume: 195 cm³
Est. weight (PLA): 242 g
Parts to print: 1
Category: Finishing & painting
Made by: Krypto
Built in: 41 steps

What’s in it

Rectangular, 200 × 120 × 120 mm, with 2.4 mm walls
4 dividers
2 holes in the walls
Raised text: “+”, “-”

How to print it

Outdoors or well ventilated only (it makes hydrogen). Never use stainless steel plates, never touch the clips while it is on.

Prints as shown on its floor, no supports.

Filament: at most about 242 g of PLA printed solid (roughly $4.83 at $20 per kg); normal infill uses less.

To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).

Questions

What size is the electrolysis rust-removal tank model?

The electrolysis rust-removal tank model measures 200 × 120 × 120 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Outdoors or well ventilated only (it makes hydrogen). Never use stainless steel plates, never touch the clips while it is on. Prints as shown on its floor, no supports.

How much filament does it use?

At most about 242 g of PLA (195 cm³ printed solid), roughly $4.83 of filament at $20 per kg. Normal infill uses less.

Can I change it?

Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.

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Make it fit your space

Change the size, walls, dividers, holes and labels of the electrolysis rust-removal tank model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model