Design available to download on Cults3d -Click Here
 
Model description
Build accurate, robust AH‑64 cockpit replicas with confidence.
This download provides parametric CAD and print‑ready STL files for the five pilot lighting‑panel knobs used in the AH‑64. Unlike generic knob packs, these models are designed so you can fine‑tune shaft/insert tolerances to your own printer and hardware—ensuring a snug, push‑fit that stays put yet can be removed without damage.
 
Why it matters:
Cockpit knobs are small, tactile parts; a few hundredths of a millimetre determines whether they wobble, seize, or wear out. With the included CAD, you can quickly nudge offsets (e.g., ±0.05 mm) before exporting fresh STLs matched to your machine, material, and environment.
 
What’s included
 
5 distinct knob models matching the OEM patterns used on the AH‑64 pilot lighting panel:
single‑head, double‑head, triple‑head, quadruple‑head, and a 7‑spline variant (the real aircraft uses mixed geometries for fast tactile identification).
Parametric CAD for tolerance edits (adjust shaft/spline/insert offsets in seconds).
Reference STLs to get you printing immediately (most users will still export fresh STLs after dialling their own offset).

Short fitment & print notes (see below).
If you prefer cast resin “production” quality knobs straight out of the box, you can buy them here:
AH‑64 Lighting Panel Resin Knobs – 737DIYSIM Webshop: https://www.737diysim.com/product-page/ah-64-lighting-panel
 
Key features & originality
Print‑and‑tune workflow: Created specifically for sim builders who want the right tactile feel without endless reprints. Adjust one parameter, export, done.
Faithful tactile patterns: The five distinct head/spline styles mirror the real panel so you can learn controls by touch, as intended in the aircraft.
Cross‑technology friendly: Works great with resin (crisp knurling, sharp legends) and filament (durable, fast). The parametric file means no single “universal” STL guesswork—you set the fit for your printer.
 
Recommended use & context
Use cases: Home cockpit builds, training rigs, museum displays, props, and restoration replicas where controllability and tactile differentiation matter.
Mounting/shafts: Designed for common hobby shaft/insert styles. If your panel uses a different shaft (diameter/flat/spline), simply tweak the offset/diameter in CAD and export a new STL.
 
Limitations & notes
Not a flight‑certified part. For simulation, education, and display applications only.
Hardware variation: Because shafts, set‑screws, and potentiometer flats vary, you may need to edit the parametric sketch and export new STLs for best results.
Printer variability: Resin vs. filament, slicer flow, and regional climate all influence final fit—hence the included CAD for quick tolerance tuning.
No electronics included. Knobs only.
 
Why is this essential for your build
Consistent feel across the panel so you can operate by touch—like the real aircraft.
Less waste, fewer reprints: Tweak once in CAD rather than trial‑and‑error sanding.
Future‑proof: Change hardware later? Re‑export a new fit in minutes.
 
What buyers say (fit tip in plain speak)

Many builders report success by offsetting the bore ~0.05 mm to match their machine and material. Start conservative, test one knob, then batch print. Snug = ✅; “hammer‑on” tight = ❌ (you’ll never get them off cleanly).
 
3D printing settings
Printing & fitment guidance
Fit target: Aim for a snug, not tight push‑fit. Do not force—if it’s tight, reduce the offset by ~0.02–0.05 mm and re‑export/print the insert bore.
Typical tweak: Many users find –0.05 mm (tightening the bore slightly) yields a perfect friction fit depending on resin/PLA shrink, humidity, and slicer compensation.

Materials:
Resin: Best surface quality and knurl definition. Standard grey or tough resin works well.
Filament: PLA/PETG print cleanly with a 0.4 mm nozzle, 0.12–0.16 mm layer height.
Post‑process: Light ream or burnish the bore if needed. Avoid CA glue unless you’re committing permanently.

Orientation: Print caps/heads face‑up for surface quality; support lightly to preserve detail.