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Test-tube marble engine base

Name: Test-tube marble engine base dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What base does a test-tube marble engine stand on? · Hardware · basis: My geometry: holes on the pivot posts' and crank stands' foot patterns, M3 nut pockets at the nuts' exact 5.5 AF

Long Earth Society build part. Base of the marble engine. The engines

Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features

sizes: 3 in table

Notes

438 × 100 × 8 (y −60..40). Two beam-pivot-post-60 at x 0, y ±10 (M3 × 12, nuts flush with the underside) and two crank-stand-80 at x 192.72, y −13.5 and −45.2 (M3 × 10, nuts 1 above the underside).

Sizes

feature	value
base	438 × 100 × 8
pivot posts	x 0, y ±10
crank stands	x 192.72

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.

feature	exact	mates with	fit	files
screw holes	Ø3.4	M3 clearance	designed	all
nut pockets	5.5 AF hex	ISO 4032 M3 nut	press	all

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Long Earth Society

Engine builds

web, video

LES site

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

marble-engine-base

base 438 × 100 × 8 (y −60..40): 4 × Ø3.4 for the two pivot posts and 4 for the two crank stands, each with an M3 nut pocket (5.5 AF) from the underside

STEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=marble-engine-base