Practical guides on tattoo geometry - line width, spacing, blowouts and stencils.
The millimetre thresholds that decide whether a fine line holds or blurs, and how to check yours before you tattoo.
Blowouts and blur are usually geometry problems you can see in advance. Here is what drives them and how to preflight for them.
A stencil is only useful at the exact size you tattoo. Here is how to lock the real size and keep your linework safe.