Organ Workshop Planner Pro v6.0 · offline-first
Design and document a wooden organ-pipe rank for the street organ or seasonal vending-machine project. Estimates are for prototyping, not production cutting.
Enclosure dimensions are usable internal space. Width check assumes one straight rank, side by side. Wood estimate covers four rectangular body panels per pipe only, not feet, mouths, stoppers, bellows, finish or cabinet.
Offline-first: files stay on your device. No cloud or account required.
Feasibility and budget
Envelope dimensions and costs are screening estimates, not verified installation drawings or supplier quotations. Pipes may be split across sides/top of the cabinet, but that requires a separate layout design.
Placement exploration
Greedy allocation to top, left side, right side, then a straight internal rank. Each zone is checked independently; this is a preliminary packaging study, not a collision-free 3D CAD layout. The cabinet depth and wind chest must still be checked mechanically.
Prototype build sheet
Select a representative pipe, record actual tuning, and use measured corrections for the next iteration. Measurement entries are not automatically applied to other notes.
A calibration record is tied to the selected MIDI note and the current acoustic configuration. Enter both measured frequency and effective resonator length; the suggested correction is experimental, not transferable without validation.
Fabrication package · drawings, assembly & inspection
Parametric 1:1 mm SVG and ASCII DXF R12 blank-panel drawings. Geometry is based on the simplified square butt-joint body, not a fully voiced organ pipe. Cut files exclude mouth/foot/stopper machining and are NOT released for cutting until the prototype and construction details are independently verified.
Before cutting: validate resonator dimensions against a physical prototype; decide mouth/foot/stopper geometry, grain direction, glue-up sequence, tuning travel, stock thickness, and machine-specific tool compensation. Exported DXF is nominal geometry only, without kerf/tool offsets or CNC toolpaths.
Estimated body-panel material
| Note | Side panels (2) | Front/back (2) | Panel area (m²) | Body width (outer mm) |
|---|
Simplified butt-joint construction: two full-width panels and two panels fitted between them. All four use the estimated body-plus-allowance length. This is an illustrative material takeoff only; joint design, grain, feet, mouth openings, stopper, tuning travel, and saw kerf must be engineered separately.
Materials and procurement
Panel stock count is an area-only lower bound, not a nesting plan. Prices are editable assumptions, not supplier quotations. Verify grain direction, saw kerf, joint construction and actual board availability.
Procurement & build decision guide
Planning guide only. Quantities and prices above are provisional; supplier links are searches, not verified offers. Do not order the complete rank before testing one pipe.
| Component | What to specify / check | Decision |
|---|---|---|
| Wood for pipe bodies | Straight-grained, dry, dimensionally stable boards; verify actual thickness, flatness, glue suitability and moisture. Four body panels per pipe; feet, caps, mouths and stoppers are extra. | Buy sample stock first |
| Glue, seals and finishing | Wood adhesive compatible with the material, airtight joints, suitable stopper gasket, removable tuning stopper; finish must not obstruct mouth or air passage. | Prototype first |
| Wind chest and tubing | Airtight manifold, serviceable connections, pressure tap, tubing sized for simultaneous airflow and pressure loss. | Design before buying |
| Valves / pallet actuators | Check rated flow at operating pressure (60 mm H₂O default), response time, coil voltage/current, duty cycle and noise. Cheap water solenoid valves may be unsuitable. | Test one valve |
| Blower and regulator | Require pressure–flow curve at target pressure, not free-air rating; check noise, continuous duty, regulator and leakage margin. | Size after measurements |
| Controller and drivers | Arduino/ESP32 + 74HC595 logic only; separate appropriately rated MOSFET stages, flyback protection, fuse, power supply and emergency stop. | Prototype electrically |
| Measurement tools | Manometer for mm H₂O, frequency tuner, caliper, ruler, clamps, square and leak-test supplies. | Needed for calibration |
| Cabinet and mounting | Verify pipe layout, access, weight, vibration, moisture, clearance, wind routing and service access. Top/side placement is not a finished CAD layout. | Mechanical mock-up |
Sources and supplier research
Recommended sequence
- Build one representative stopped pipe and validate geometry and tuning.
- Measure pressure, frequency, leakage and real airflow at the valve.
- Revise drawings, cost and packing layout before ordering the full set.
- Confirm supplier stock, shipping, taxes and return conditions before purchase.
Arduino / MIDI valve map
MIDI note → sequential valve → 74HC595 logical register/bit. All numbering starts at 0. This is a software map, not a solenoid wiring schematic. 74HC595 outputs MUST drive appropriately rated MOSFET/driver stages, with flyback protection and a suitable separate supply.
| MIDI note | Frequency | Valve | Register | Bit |
|---|
| Note | MIDI | Hz | Inside width mm | Outside width mm | Acoustic body mm | Body allowance mm | Cut-up mm | Flow L/s | Valve |
|---|