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High-voltage build

High Voltage Wood Art

Start with the video, then use the science notes and recommended parts below to follow the idea behind the build.

High voltage
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How it works

What this project is testing.

High-voltage wood art makes branching burn patterns because current searches for paths across a damp, conductive surface. As one path chars, it changes the local resistance and steers the next branch.

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The science is a mix of electric fields, conductivity, heating, and runaway path formation. It is visually striking, but also extremely dangerous, so the useful takeaway is the physics of dielectric breakdown and branching, not a build recipe.

Current through resistive material turns electrical energy into heat.

Recommended parts

Products used in this project.

Affiliate links may earn Keystone Science a commission. Match ratings, values, sizes, polarity, and safety requirements to your own build before buying.

Amazon Basics 8-Pack 9V Long-Lasting Alkaline Batteries for Smoke Detector, Electronics & Audio, Reliable, 5-Year Shelf Life
batterypower

Amazon Basics 8-Pack 9V Long-Lasting Alkaline Batteries

$12.694.7(242K)

General electronics battery pick; choose AA/AAA variants when the circuit calls for them.

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EDGELEC 120pcs Breadboard Jumper Wires 20cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Multicolored Ribbon Cables
jumper wires / hookup wirewiring

120pcs Breadboard Jumper Wires, 20cm Dupont Cable Assorted Kit, Male to Female

$6.984.7(4,500)
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12V 2A Power Supply, AC 120V to DC12V 5.5x2.1mm Jack Converter, 12 Volt LED Driver 24W Adapter Transformer for Strip Lights, Surveillance Cameras, External HDD, Monitor, CCTV (Pack of 1)
transformerpower

12V 2A Power Supply, AC 120V to DC12V 5.5x2.1mm Adapter Transformer

$8.994.5(6,601)

General low-voltage transformer/adapter pick; match voltage/current and connector to the circuit.

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Pure Life Distilled Water 2.5 Gallon, 320 Fl Oz
waterfluid

Pure Life Distilled Water, 2.5 Gallon

$5.694.6(410)
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2 x 13.5 Pounds Arm & Hammer Pure Baking Soda (27 Pounds Total)
salt / electrolytechemistry

Arm & Hammer Pure Baking Soda, 2 x 13.5 Pounds

4.8(1,100)

For electrolysis demos, baking soda is often a safer electrolyte than table salt.

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Plywood Board 20PCS 12" x8" x 1/12 inch Basswood Sheets Thin Wood Sheets Perfect for Arts Crafts School Projects and DIY Projects,Baltic Birch Sheets Perfect for Wood Burning…
woodfabrication

Plywood Board 20PCS 12 x 8 x 1/12 inch Basswood Sheets for Arts, Crafts, School Projects, and DIY

$19.994.6(2,300)
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TOSHIBA EM131A5C-BS Countertop Microwave Ovens 1.2 Cu Ft, 12.4" Removable Turntable Smart Humidity Sensor 12 Auto Menus Mute Function ECO Mode Easy Clean Interior Black Color 1000W
microwave ovensalvage

Toshiba EM131A5C-BS Countertop Microwave Oven, 1.2 Cu Ft, 1000W

$148.994.4(32K)

Recommend only as an appliance; do not encourage buying a working microwave for disassembly. Review requirements and safety guidance before buying.

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NoCry Clear Safety Glasses for Men and Women with Anti-Fog and Scratch Resistant Wrap Around Lenses, Adjustable Temples and Nose Pads — ANSI Z87 Certified Protective Eyewear with 100% UV Shielding
safety glassessafety

NoCry Clear Safety Glasses with Anti-Fog and Scratch-Resistant Wraparound Lenses, ANSI Z87 Certified

$13.984.5(49K)
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MAGID Rubber Insulating Electrical Safety Gloves, Class 0 ASTM Compliant
glovessafety

MAGID Rubber Insulating Electrical Safety Gloves, Class 0 ASTM Compliant

4.5(955)

Safety-critical: verify voltage class and standards before recommending for high-voltage work.

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DEVMO DC 3V-6V to 400kV 400000V Boost Step-up Power Module High-Voltage Generator
high-voltage power supplypower

DEVMO DC 3V-6V to 400kV Boost Step-up High-Voltage Generator Module

$10.994.4(508)

Prefer low-current educational modules over mains-powered high-voltage supplies. Review requirements and safety guidance before buying.

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Goupchn Universal P6100 Oscilloscope Clip Probes 100MHz with Accessories Kit 1X 10X 2 Pack
test probes / leadstest equipment

Goupchn Universal P6100 Oscilloscope Clip Probes, 100MHz, 1X/10X, 2 Pack

$13.994.7(126)
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BOSOBO Paint Brushes Set, 2 Pack 20 Pcs Round-Pointed Tip Nylon Hair Artist Acrylic Paint Brushes for Acrylic Painting Oil Watercolor, Face Nail Art, Canvas, Miniature Detailing & Rock Painting, Blue
paint brushfinishing

BOSOBO Paint Brushes Set, 2 Pack 20 Pcs Round-Pointed Tip Nylon Hair Artist Acrylic Paint Brushes for Acrylic Painting Oil Watercolor, Face Nail Art, Canvas, Miniature Detailing & Rock Painting, Blue

$7.494.7(60K)
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Sand Paper, 48 PCS Sandpaper, 120 to 5000 Assorted Grit Sandpaper Sheets, 9 x 3.6 Inch Premium Wet Dry Sandpaper for Wood Fur
sandpaperfabrication

Fandeli Assorted Grit Sandpaper Sheets

$12.99
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11.25 oz Rust-Oleum 63081 Clear Watco Lacquer Spray, Gloss
clear gloss finishfinishing

11.25 oz Rust-Oleum 63081 Clear Watco Lacquer Spray, Gloss

$13.934.6(1,200)

Use only with ventilation and appropriate finishing safety.

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Project files

Prints, kits, and downloads.

Diagrams, printable files, kits, or companion downloads will appear here when they are ready to use.

Coming soon

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