Four-Channel Paintbrush Rest - STL and Editable Source

90 mm wide x 32 mm deep x 14 mm high. Four open trapezoidal channels: 14 mm opening, 6 mm bottom width and 6 mm depth. Rest dry brush handles across channels. Paint/solvent resistance and handle fit untested; not a food-contact item. Original AI-assisted design. Digital STL and editable OpenSCAD source only. Mesh and generic slicer checked; physical printing and functional performance untested. Preview colors show illustrative geometry shading.

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