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90° V block for two 10 mL syringes

How do I hold two syringes at 90° for an alpha Stirling layout? · Hardware · basis: Two sockets at the 10 mL barrel OD Ø15.9, axes at ±45°

Long Earth Society build part. Alpha demonstrator and the twin-crank for the two-spool alpha. 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
4 in table

Notes

  • A 70 × 24 × 40 block with two Ø15.9 sockets (fit: socket) for 10 mL syringe barrels, their axes at ±45° (90° between them).
  • The axes meet 4 mm below the block's base, too close for a crank under it: it is a layout piece for showing the V. The running V-twin is the alpha V-twin frame.

Sizes

parametervalue
block70 × 24 × 40
sockets2 × Ø15.9
angle between axes90°
axes meet4 below the base

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.

featureexactmates withfitfiles
V-block socketsØ15.910 mL syringe barrelsocketv-block-*

Where the files are

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

WikipediaStirling enginewebCC BY-SA 4.0 (text)
Long Earth SocietyEngine buildsweb, videoLES 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

v-block-90-2x-syringe-10mlfor a running V-twin use the alpha V-twin frame)STEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=syringe-v-block-90

90° V block for two 10 mL syringes, isometric render of a generated part
Render of v-block-90-2x-syringe-10ml from the free STEP; not to scale.

How it fits

Goes in or on

Plastic syringes 1–60 mL as pistons and cylinders10 mL barrels in the Ø15.9 sockets

Alternatives

Alpha V-twin frame for two 10 mL syringes at 90°the running V-twin frame

You might also need

Two-pin crank disc, pins 90° apart, 6 / 8 / 10 mm throw, isometric render of a generated part
Two-pin crank disc, pins 90° apart, 6 / 8 / 10 mm throw3 sizes★ 3 files

Questions

Can the V block run as an engine?

No: its axes meet 4 mm below the base, with no room for a crank. Use the alpha V-twin frame.

What fits the V block sockets?

10 mL syringe barrels, Ø15.9 outside.