Machine Pin Medium Short

@@ -2,7 +2,7 @@  Adom **machine pin** (Medium / Short) for the Adom modular electronics system. A machine **pin** (`MP`) seats in a plated through-hole and mates with a machine-**contact** (`MC`) on a stacked board (32mm scaffold grid). This page carries the corrected KiCad ++**contact** (`MC`) on a stacked board (medium-class 2mm grid). This page carries the corrected KiCad + **Fusion 360 `.lbr`** library and an interactive 3D insertion view.  ## Mounting: line-to-line in a plated hole@@ -31,6 +31,16 @@ Large machine pins are unaffected and remain press-fit (Ø3.6 body in a Ø3.45 h | Footprint pad | Ø1.6 mm | | Footprint drill (plated) | Ø1.2 mm | +## Grid spacing++Medium-class pins and contacts sit on the **2 mm** grid. Pins within a row can be **2 mm**+apart, but a separate row must be at least **4 mm** away to clear the workcell pincers, so+the minimum spacing is **2 mm x 4 mm**. Every Adom grid is an integer multiple of 2 mm; a+medium-class user scaffold typically picks a coarser multiple (8 mm and 4 mm are common).++The **32 mm** grid is the *large*-class convention (the base scaffold's 18x18 array of large+machine pin contacts), not this part's. See the Molecule Design white paper, Table 1.+ ## Files  - **Fusion 360 library:** `MachinePinMediumShort.lbr` (EAGLE/Fusion, round thru-hole pad + real pin outline symbol)