Shimano SPD cleat alignment jig for cycling shoes
A jig that holds a Shimano SM-SH51 or SH56 SPD cleat at a repeatable fore-aft position and angle while you tighten the two M5 bolts (14 mm apart), so a new pair of Shimano, Specialized or Fizik MTB shoes ends up set exactly like the old one. The base is a 90 x 60 mm plate with a pocket matching the cleat outline, a sliding rule in millimetres along the shoe axis and angle marks from 0 to 10 degrees, all raised 0.6 mm so they survive shop use. Print it flat in PETG.
Cleat position is personal and knee-critical, and a downloaded jig cannot know your measured offset. Give SpeakCAD your cleat model and the fore-aft and angle numbers from your bike fit, preview the jig free in the browser, refine the pocket in the chat, then download the STL.
Design a cleat alignment jig plate 90 x 60 x 5 mm with a pocket for a two-bolt SPD cleat 0.3 mm oversize, bolt slots on 14 mm centres, a raised millimetre scale along the long axis and angle marks from 0 to 10 degrees, 0.6 mm raised text.