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Barrel & Grit Workshop

Plan it. Track it. Fix it.

Build a sensible load, keep every barrel organized and diagnose disappointing results with transparent, evidence-based guidance.

Saved privately on this device · no account required

Rock tumbler calculator

Calculate barrel fill, media, grit and the next inspection.

Build a working rock-tumbling schedule from the barrel rating, dry rock weight, material and stage. These are planning estimates; the machine and abrasive manufacturer’s instructions remain the first authority.

Free rock tumbling tools

One workshop for the whole four-stage process.

Rock tumbler load calculator

Estimate a practical working load, compatible media and a conservative grit starting point. Correct fill helps the stones cascade instead of falling or sliding.

Dull-rock troubleshooter

Work through common reasons tumbled rocks are not shiny, from unfinished coarse shaping to contamination and incompatible hardness.

Rock tumbling batch tracker

Save separate barrels, record notes, advance stages and export a backup. No account or cloud upload is required.

Learn the process: rock tumbler grit chart · rock tumbling stages and schedule · why stones stay dull

How the Workshop makes recommendations

It applies conservative, published rock-tumbling principles to the details supplied by the visitor. It does not claim hands-on inspection, automatically identify a mineral from color or replace model-specific instructions.