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Tattoo techniques explained at the mechanism level

Tattoo techniques explained at the mechanism level, by Jingxi Gu — a working tattoo artist with 8+ years training apprentices in Los Angeles.

Cross-section of skin showing epidermis, dermis, and hypodermis, with a tattoo needle resting inside the dermis
May 15, 20268 min read

Smooth Shading Isn't a Technique — It's a Result

Smooth shading is not a mode you switch into. It is what you see when hand speed, needle depth, and gradual entry and exit all hold steady at once. Why chasing a smooth feeling keeps you stuck.

The needle's motion decomposed into a vertical depth component and a horizontal surface component — feathering shrinks the depth, speeding up only enlarges the surface travel
May 15, 20268 min read

Speeding Up Your Exit Doesn't Work for Smooth Shading

When you speed up your hand to feather a shading stroke, you are not feathering — you are whip shading by accident, and it leaves permanent horizontal needle marks. Here is the depth-versus-speed mechanism.