1 · Cover

Project: Drone Flute Family (DRN-FAM-001)
Date: 2026-05-05 Builder: Tony Koop Shop: Maker Nexus

Four NAF-style drone flutes (Am, F#m, Em, Dm), walnut + maple, tunable drone block set per flute (U/5/8).

Materials $193 · Tooling $245 (one-time) · Total first build $438+

2 · Quick Start

Confirm walnut + maple acclimated 7 days.
Open Drone-Flutes-Design.xlsx, verify Master_Inputs.
Print cut-list.csv, tape to bandsaw.
Phase 1 → Phase 12 per assembly-manual.md.

3 · Design Intent

Open-open pipe + NAF K2 empirical correction
A=440 Hz concert pitch
68°F reference temperature
Octagonal body, 8 facets, walnut with hard-maple CNC inlay
Drone offset = global var; flips all 4 flutes in one edit

4 · BOM Summary

Group	Subtotal
Wood	$193
Hardware + finish	$78
CNC tooling + drills	$245 (one-time)
Total first build	$516

Full BOM in bom.csv.

5 · Sourcing

See sourcing.csv for live URLs and lead times. RFQs ready in supplier-rfq.md.

6 · Cut List Highlights

4 walnut body blanks (Am+F#m: 1.5×1.5×26; Em+Dm: 1.75×1.75×32)
1 walnut stick → 12 drone blocks (3/flute × 4)
1 offcut → 4 bird blocks
2 sheets 1/16" maple + 1 sheet 1/8" maple → all inlay

7 · Drawings + Tolerances

Feature	Tolerance
Hole positions	±0.020" (tuning-critical)
Drone tenon	±0.003" (fit-critical)
Wall at bore	≥ 0.20" (structural)
Splitting edge	knife-sharp (listen-test)
Inlay flush	< 0.005" proud/recessed

8 · Validation Targets

Member	f0	m3	P4	P5	m6	m7	oct
Am	440.0	523.3	587.3	659.3	698.5	784.0	880.0
F#m	370.0	440.0	493.9	554.4	587.3	659.3	740.0
Em	329.6	392.0	440.0	493.9	523.3	587.3	659.3
Dm	293.7	349.2	392.0	440.0	466.2	523.3	587.3

All values Hz. Tolerance ±5 cents. Record measured + cents-error in validation.csv.

9 · Shop Notes (write here)

Phase	Started	Done	Notes
1 — Stock prep	[ ]	[ ]
2 — Split-body CNC	[ ]	[ ]
3 — Glue-up	[ ]	[ ]
4 — Lathe	[ ]	[ ]
5 — Faceting	[ ]	[ ]
6 — Tone holes	[ ]	[ ]
7 — Window/edge	[ ]	[ ]
8 — Inlay	[ ]	[ ]
9 — Drone blocks	[ ]	[ ]
10 — Bird blocks	[ ]	[ ]
11 — Finish	[ ]	[ ]
12 — Tune + QA	[ ]	[ ]

10 · Risks Summary (top 3)

A-1 · Hole 6 (octave) running sharp — listen during tune-step.
A-2 · Drone-melody chamber leak — verify pre-glue + post-glue.
E-1 · Em/Dm reach for 5th-percentile hands — measure before delivery.

Full red-team list in risks.md.

Appendix · File Index

Drone-Flutes-Design.xlsx — Excel design source
design.md — physics narrative
family-spec.csv — auto-generator input
bom.csv · sourcing.csv · cut-list.csv · validation.csv
assembly-manual.md · supplier-rfq.md · visual-bom-brief.md · drawing-brief.md
risks.md — failure-mode walk
wolfram-starter.wl — Wolfram package
capstone-deck.pptx · capstone-deck.md
print-packet.md · print-packet.html · print-packet.pdf
capstone-manifest.json
drawings/ — per-key SVGs
inlay-patterns/ — 16 DXF + 16 SVG
sw-reference/ — SolidWorks ref doc
site/ — recruiter web page