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.
Barrel & Grit Workshop
Build a sensible load, keep every barrel organized and diagnose disappointing results with transparent, evidence-based guidance.
Rock tumbler calculator
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
Estimate a practical working load, compatible media and a conservative grit starting point. Correct fill helps the stones cascade instead of falling or sliding.
Work through common reasons tumbled rocks are not shiny, from unfinished coarse shaping to contamination and incompatible hardness.
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
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.