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Four-lobe lifting cam R12 → R26, 8 thick, Ø8 bore

What does the tilt-hammer cam look like? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: wiper cam, lifting cam, tappet cam, leva de cuatro lóbulos, Hebedaumen (vierfach)

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

length
48.86 mm
width
48.82 mm
height
8.0 mm

Notes

  • Four lobes, each rising from R12 to R26 over 70° with cycloidal motion and then dropping straight back: it lifts the hammer helve four times per turn and lets it fall freely.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Four-lobe lifting cam R12 → R26, 8 thick, Ø8 bore size chart

dimensionvalue
lobes4
riseR12 → R26 over 70°, sudden drop
boreØ8
thickness8 mm

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. 72: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

tilt-hammer-cam-4-lobe-r12-r26-bore8as drawn in the mechanism's own frameSTEP · 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.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=tilt-hammer-cam-4-lobe-r12-r26-bore8

Four-lobe lifting cam R12 → R26, 8 thick, Ø8 bore, isometric render of a generated part
Render of tilt-hammer-cam-4-lobe-r12-r26-bore8 from the free STEP; not to scale.

Fits with

Tilt hammer lifted four times per turn by a cam, isometric render of a generated part
Tilt hammer lifted four times per turn by a cam3 sizes★ 1 file

Questions

What does the tilt-hammer cam look like?

Four lobes, each rising from R12 to R26 over 70° with cycloidal motion and then dropping straight back: it lifts the hammer helve four times per turn and lets it fall freely.