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Grooved heart cam (face cam), uniform motion, 20 mm stroke

What is a grooved heart cam? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: grooved cam, face cam, heart cam groove, positive drive cam, leva de corazón ranurada, Herznutkurve

Exact dimensions. True size, with no printing tolerance added.

length
102.0 mm
width
102.0 mm
height
10.0 mm

Notes

  • Ø92 × 10 disc with a 10 mm wide, 6 mm deep groove in its face: the groove's centre line is a heart (radius 20 → 40 mm over 180° and back), so a Ø10 roller in it is driven both ways — no spring needed. Ø5 bore.
  • Groove walls are the centre line offset ±5 mm (the roller radius); uniform speed out and back, reversing at the cusps.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Grooved heart cam (face cam), uniform motion, 20 mm stroke size chart

dimensionvalue
discØ92 × 10 mm
groove10 wide × 6 deep
stroke20 mm, uniform velocity
boreØ5

Where the files are

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

Henry T. Brown (1868, public domain)Five Hundred and Seven Mechanical Movements — scan on archive.orgwebPublisher's page; dimensions are facts
507movements.comBrown's movement No. 97: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

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

grooved-heart-cam-r20-h20face cam, groove on the top faceSTEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
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Plain text: sheet.txt · JSON: /api/geometry?object=grooved-heart-cam-r20-h20

Grooved heart cam (face cam), uniform motion, 20 mm stroke, isometric render of a generated part
Render of grooved-heart-cam-r20-h20 from the free STEP; not to scale.

Fits with

Grooved heart cam (face cam) with roller follower, isometric render of a generated part
Grooved heart cam (face cam) with roller follower4 sizes★ 1 file

Questions

What is a grooved heart cam?

Ø92 × 10 disc with a 10 mm wide, 6 mm deep groove in its face: the groove's centre line is a heart (radius 20 → 40 mm over 180° and back), so a Ø10 roller in it is driven both ways — no spring needed. Ø5 bore.