Hobby & Craft Helpers

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Rock Tumbling Grit Log – Days per Stage & Grit Usage

Track which stage of tumbling your rocks are in, record grit amounts, and get reminders for when to advance to the next grit.

Hobby grit rock tumbling tracker

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Miniature Contrast Painter – Online View Zenithal Highlight & Wash

Simulate zenithal priming and contrast/speed paints over a 3D bust. Understand light and shadow placement before you paint. Great for tabletop miniatures.

Hobby contrast miniature painting zenithal

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Airbrush Paint Thinner Calculator – Online Acrylic/Enamel Ratio

Select paint type and brand to get the recommended thinning ratio for airbrush. Achieve smooth, clog-free spraying.

Calculator airbrush ratio thinner

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Plastic Model Cement Selector – Online Glue Type by Material

Choose your model's plastic type (PS, ABS, resin) to find the correct cement or adhesive. Avoid melting or weak bonds. Essential for scale modelers.

Guide cement model kit plastic

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Ham Radio Q-Codes Cheatsheet – Online Quick Reference

Searchable list of Q-codes with meanings. Also includes RST system. Prepare for license.

Hobby ham radio Q code reference

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LEGO Color Chart & Hex Reference – Online BrickLink Colors

Browse all official LEGO colors with names, years, and hex codes. Sort by hue. Perfect for builders.

Hobby chart color LEGO