Height lock (V1 recommended) • Primary lock: 10 mm ball-lock pin through hole pattern • Secondary: hand clamp knob (anti-rattle) • Hole pitch (first pass): 50 mm increments • Show a typical hole zone spanning 305–2135 mm up the outer tube.
Swivel handle assembly (critical feature) • One handle per post • Handle pivot point located on a bracket attached to the inner tube so it moves with height. • Handle pivot point offset from post centerline: +120 mm (X direction) so knuckles clear the post. • Bracket vertical position = pivot height range 305–2135.
Free-swivel callout text (must be on GA):
Handle rotates freely 360° No indexed rotation.
Handle dimensions (to show on GA) • Grip length: 150mm • Grip diameter: 30–35 (reference only) • Clearance circle around handle (dashed): 200mm “sweep zone”
3) HAND POST MODULE (HPM) — SIDE ELEVATION — GA-001-HPM-SE
Purpose
Shows forward/back clearance and confirms handle offset. • Base 450mm shown again • Post centerline • Handle offset 120 • Optional: show an additional dashed handle position as a “neutral line”
⸻
4) FOOT PLATFORM MODULE (FPM) — FRONT ELEVATION — GA-001-FPM-FE
Purpose
Defines base, column, height range, and platform size.
FPM platform top height range • Min platform top height: 305mm • Max platform top height: 1220mm
FPM base • Base footprint (from top view): 700×500mm • Base thickness placeholder: 80mm overall height (ballast inside) • Underside: non-slip rubber pads or sheet
5) FOOT PLATFORM MODULE (FPM) — SIDE ELEVATION — GA-001-FPM-SE
Purpose
Shows platform depth and confirms base depth. • Base depth: 500 • Platform depth: 200 • Show platform centered on column
⸻
6) KEY NOTES BLOCK (put on GA sheet verbatim)
Functional / safety notes 1. “All modules are free-standing and must resist tipping during asymmetric loading.” 2. “All exposed edges to be deburred; minimum edge radius R1.5.” 3. “Pinch points: design gaps 10 mm in moving zones.” 4. “Height adjustment must have positive engagement and anti-rattle measure.” 5. “Non-slip floor contact required; no metal-to-floor contact.” 6. “Free swivel handle: continuous rotation 360°; no pinned/indexed rotation.”
Prototype notes 7. “All dimensions shown are GA / first-pass for layout and quoting; detail drawings will finalise sections, thicknesses, and hole patterns.”
8) WHAT FILES THE CAD PERSON SHOULD OUTPUT (from this brief)
Ask them to deliver: • GA-001.pdf (A1/A2) • GA-001.dwg (AutoCAD) • GA-001.step (optional for 3D reference blocks) • Simple 2D blocks for HPM and FPM footprints
**PLEASE BEAR IN MIND I AM NOT A DESIGNER AND HAVE DONE MY BEST TO BE ACCURATE**
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