parametric fin generator

Generator Approach

Instrument

Parameters

Set the parameters, then generate.

Foil family

Symmetric 50/50 foil for center fins

Flat inside Flat face for side fins

Cambered Curved for extra drive

Fin depth / height mm

Base chord mm

Rake / sweep angle deg

Tip lobe width (x base)

Leading-edge fullness

TE shape (concave to convex)

Section thickness t/c

Camber (cambered only)

Camber position

TE thickness (printability) mm

Tip thickness factor

Mounting

Tab system

None Flat base, no box

Dual FCS-compatible

Single Futures-compatible

Click FCS II-compatible

Tab fit offset mm

Click indent mm

Tab offset (fore/aft) mm

Tab offset (across) mm

Tab depth mm · blank = auto

Grooves

Grooves (count · 0 = off)

Groove surface

Outer · G1 Grooves on one face

Both · G2 Grooves on both faces

Groove length mm

Groove pitch mm

Groove width mm

Groove depth (x thickness)

Band start (x depth)

Output

Hand

Right Right-hand blade

Left Mirror image

Center fins are symmetric, so hand has no effect.

Split into printable halves

Error

Mesh drag to orbit · scroll to zoom

Area —

Aspect ratio —

Volume —

Sweep —

Export STEP STL GLB

Planform with control polygons and true-thickness section profiles. — Technical preview planform · sections

Guided

Find your fin

Preview Work in progress. The optimizer engine is built and validated; the compute hookup is being wired, so "Calculate" checks your profile but won't run a search yet. See where this is headed →

Your weight and how you want the fin to feel, then we'll suggest parameters.

Rider weight kg

Skill level

Cruiser Relaxed lines Intermediate Working on turns Advanced Top-to-bottom Pro Competitive

Fin configuration

Single One center fin

Twin Two side fins

Thruster Three fins

Quad Four fins

2 + 1 Sides + center

Print material

PAHT-CF Carbon nylon PET-CF Carbon PET

Mounting system

FCS II Click-in tabs FCS Twin tabs US box Longboard single

Ride profile drag the points