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Mounting Block — Bill of Materials (BOM)

The OpenPoleMount mounting block is fully 3D-printed. There are no proprietary, purchased, or non-printed components — the complete assembly is two printed parts plus filament. This keeps the whole part openly reproducible by anyone with a printer.

General-purpose hardware

This is general-purpose mounting hardware, not a medical device. See the Safety & Disclaimer page.

Printed parts

# Part File Qty Manufacturer / Part No.
1 Pole Mounting Block OpenPoleMount_Pole_Mounting_Block_V1.stl 1 Self-printed (open design — no proprietary part)
2 T-handle Thumbscrew OpenPoleMount_Pole_Mounting_Block_ThandleThumbscrew-V1.stl 1 Self-printed (open design — no proprietary part)

Consumable — filament

Material Spec Notes
PLA (validated) or PETG (stronger, lighter, more heat/creep tolerant) 1.75 mm filament, any reputable brand No specific brand required. Destruction testing was performed in standard PLA; PETG is recommended for higher-stress or warmer environments.

Measured filament use (single unit, sliced at 0.2 mm layer height on the recommended profile):

Part Filament (measured) Volume
T-handle Thumbscrew ~14 g ~11 cm³
Full v3 cradle (block + pocket) — reference ~109 g PLA ~88 cm³

PLA and PETG use near-identical filament volume; mass differs only slightly with density (PLA ~1.24, PETG ~1.27 g/cm³).

Bare-block-only figure pending

The full v3 cradle above is measured from a real slice (single unit, ~3 h 10 m print). The bare mounting block on its own has not been sliced separately — as a subset of the cradle it uses less than the full-cradle figure. (Pending a block-only slice for an exact number; your slicer's estimate is authoritative.)

The block is a load-bearing part; wall count and infill are safety-critical. Print both parts at or above the shared recommended minimums:

Parameter Recommended minimum
Material PLA (or PETG)
Layer height 0.2 mm
Walls 6
Top/bottom 2 mm
Infill ≥35 %, 3D honeycomb (non-concentric — not lines/grid)
Supports None required
Orientation Block: pole channel vertical (layers perpendicular to clamp load). Thumbscrew: flat, handle face down.

Full details and rationale: Print Guide.

Dimensions

Measured directly from the STL geometry:

Part Bounding size (X × Y × Z)
Pole Mounting Block v1 48.0 × 57.9 × 59.5 mm
T-handle Thumbscrew v1 102.0 × 53.0 × 16.0 mm

Source files

Editable source CAD (Blender *.blend) for both parts lives in the repository under stl/, available for remixing under the hardware license (CERN-OHL-W-2.0).

Fully 3D-printed — no BOM entries for purchased hardware. This documentation is provided for informational purposes only; verify every printed part before use.