2015 Twin Cities makerspace workshop I designed and led: 7 friends, 16 hand-built ashiko drums, start to finish from raw lumber through goatskin head. Includes the table-saw sled jig for compound stave cuts, CAD geometry, build photos, and notes on running a multi-skill-level workshop.

Engineering documentation for a stave-built djembe — a technique I built drums with at Morgan Drums (St. Paul, MN) starting in 2008. Combines original college research on djembe acoustics, CAD geometry of the goblet body, and jig design for cutting the varying compound miters. Predecessor to ashiko-drum-workshop.

Frame drum construction across multiple methods and traditions: stave-built, steam-bent, wood-turned, CNC-machined, and inflatable-tire tuning (inspired by Feather Song Drums, NZ). Includes companion mallet and drumstick designs.

Stave-built dunduns — engineering documentation for the cylindrical dual-headed bass drums that anchor the West African djembe ensemble. Includes CAD geometry across the kenkeni, sangban, and doundounba sizes, cowhide head construction notes, and tuning math relating cylinder dimensions to ensemble pitch.

Stave-built didgeridoo design — 2013 acoustic study covering 25 musical keys (C1-C3, with build lengths from ~27" at C3 to ~107" at C1), frequency-to-length calculations, stave geometry across L:D aspect ratios 22:1 to 26:1, and design brainstorming for internal-rib patterns. Sister project to djembe and ashiko-drum-workshop.

Engineering documentation for stave-built fujaras — the deep, harmonics-driven Slovak shepherd's flute, traditionally 5-8 feet tall and tuned to play melodies from the natural overtone series rather than from finger holes. UNESCO Intangible Cultural Heritage. Includes a parametric design table from D2 to F#3.