Timestamps for various topics: 0:00 Minimum requirements for meshing to work at all
7:20 Gear ratio selection restriction
9:07 Binding due to insufficient backlash
12:29 Screw pump working
13:12 Pressure angle tradeoffs
13:45 Effect of shaft-shaft distance on backlash for different pressure angles
14:48 Effect of pressure angle on tooth strength
16:43 Force driving the shafts apart, and effect of backlash on this force
18:37 Failure of WiFi tank drivetrain due to this force
20:12 Conclusions on pressure angle
21:02 Standard values for pressure angle
21:51 Tradeoffs between module and number of teeth
22:58 Larger module is more tolerant for shaft-shaft distance errors
24:26 Undercutting, why it’s necesary, and why it’s bad
26:35 Concentricity error or runout error gives same type of problem as shaft-shaft distance error
28:47 Why m=3 for the screw pump?
31:51 Outer diameter of a gear
I don’t think any of the files in this video are interesting enough to share. If you would like to see one of the files, leave a comment below.
I have made extensive use of these two references, which treat a bunch more topics that I didn’t discuss here, such as contact ratio, profile shifting, and wear resistance:
If you have any questions, comments or suggestions please leave those down below.
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