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Crosshead yokes with a Ø5 stub wrist pin: Ø6, Ø8 and hollow Ø10 rods

Name: Crosshead yokes with a Ø5 stub wrist pin: Ø6, Ø8 and hollow Ø10 rods dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

How do I join a con-rod to a piston rod outside the cylinder? · Hardware · basis: Design values; Ø5 dowel (ISO 8734) stub pin with a 625 in the con-rod's small end

Long Earth Society build part. The crossheads of my performance engines. 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

A block on the rod's end with a Ø5 dowel pressed 6 mm into its side: the con-rod's 625 runs on the pin beside the block and a Ø5 shaft collar holds it. The rod's axis stays clear, so in the beta the displacer rod passes straight up through the hollow rod's yoke (and its 6 × 10 × 10 bushing guides it there).

Sizes

part	socket	pin height	block
yoke-rod6-m6	M6 × 12	15	14 × 14 × 24
yoke-rod8-m8	M8 × 12	16	14 × 14 × 26
yoke-tube10-m10x1	M10 × 1 × 16	22	14 × 24 × 30

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
rod sockets	M6 (Ø5.0 × 12) / M8 (Ø6.8 × 12) / M10 × 1 (Ø9.0 × 16)	rod ends	designed	all
stub-pin hole	Ø5 × 6	Ø5 dowel wrist pin	press	all
bushing seat	Ø10 × 10 at the top	6 × 10 × 10 sleeve bushing (guides the displacer rod)	press	yoke-tube10*

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

yoke-rod6-m6	crosshead yoke 14 × 14 × 24 for the rod6 rod: tapped socket from the bottom, Ø5 stub-pin hole 6 deep in the −Y face at 15	STEP · STL
yoke-rod8-m8	crosshead yoke 14 × 14 × 26 for the rod8 rod: tapped socket from the bottom, Ø5 stub-pin hole 6 deep in the −Y face at 16	STEP · STL
yoke-tube10-m10x1	crosshead yoke 14 × 14 × 30 for the tube10 rod: tapped socket from the bottom, Ø5 stub-pin hole 6 deep in the −Y face at 22, Ø7 passage and Ø10 × 10 bushing seat at the top	STEP · STL