This partial calculator keeps equal-position count arithmetic and treats the entered index arc only as a selected angular window. It does not reconstruct the named small-driver and large intermittent wheel because pitch radii, center distance, tooth and notch profiles, engagement clearance and dwell restraint are not defined.
Partial · Ideal Count and Selected-Window Ledger
Compare equal-position count arithmetic with an entered angular window without inventing intermittent-gear geometry.
Equation Used
- Exactly one abstract follower count occurs per driver revolution.
- Follower positions are equally spaced.
- The entered arc is a selected schedule window only.
- Pitch radii, center distance, tooth and notch profiles, engagement clearance, dwell restraint, impact and safety are excluded.
The secondary figure uses separated schedule and count dials, not a meshing mechanism.
Supported count and selected-window arithmetic
For N equal follower positions, ideal step angle is 360/N degrees and N driver turns correspond to one follower revolution under the one-count-per-turn convention. An entered angular window alpha occupies 100alpha/360 percent of a turn, leaving 360-alpha degrees.
The N:1 result is an average event-count ratio, not an instantaneous motion law.
Use and boundary
Use the ledger to compare an equal-position count with a user-selected angular schedule. Do not use it to size or validate physical tooth contact, clearances, locking, impact or follower motion through engagement.
Ideal count and schedule identities
step=360/N; driver turns per follower revolution=N; remaining angle=360-alpha; selected share=100alpha/360.
Default selected-value example
For N=10 and alpha=60 degrees, ideal step angle is 36 degrees, ten driver turns correspond to one follower revolution, 300 degrees remain and the selected window is 16.7% of a turn.
Unsupported intermittent-gear claims removed
The former connected-wheel animation implied a complete index, engagement and dwell that notch count plus an entered arc cannot prove. The replacement uses intentionally separated schedule and count dials.
Questions
Is N:1 a physical gear ratio?
It is only the ideal average count ratio under one count per driver turn.
Is the selected window proven engagement?
No. It is a user-entered schedule only.
Are the dials meshing?
No. They are intentionally separated.
References
References & Further Reading
- Wikipedia contributors. Geneva drive. Wikipedia
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