I've never cut a gear before, so it's time I tried! How many times can I mess up? Join me in my scary first attempt at machining a tiny pinion in my home shop.

A friend asked if I could make a replacement for a split plastic gear from an antenna rotator. Watch me try to understand the jargon and work stuff out. I'm sure any competent homeshop machinist can do this, but I'm famously incompetent in a huge range of human endeavour. Luckily I have no fear of failure, a large scrap bin and l love new challenges.

AIMEE my artificiallyintelligent machining and engineering expert offers helpful and kindly advice. She's edited this description again, hasn't she!

Tooling:
TK2.G.050.005.025NSR 0.5mm Simturn K2 Grooving & Profiling Insert (Simtek)
TK2.G.1212.A.14.04R 12mm Shank Simturn K2 External Tool Holder (Simtek)
MGMN150GH01 https://www.cutwel.co.uk/15mmh01ge...

Gear Calculator: https://evolventdesign.com/pages/gear...

Gear Images: NonInvolute Gearing, Function and Manufacturing Compared to Established Gear Designs. Stadtfeld and Saewe Gear Technology Jan/Feb 2015
https://commons.wikimedia.org/wiki/Fi...
Trochoid Const at Russian Wikipedia, CC BYSA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons

Music: Corncob is licenced to Youtube

Kerching sound: Benboncan

00:00 Gearing up