Create an involute spur gear as a solid in FreeCAD. Specify tooth count and module; adjust pressure angle, internal/external profile, and placement for meshing pairs.
Apache 2.0
日本の住所⇄郵便番号を変換。表記ゆれも吸収。Japan address ⇄ postal code, handles messy input. Free tier, no API key.
Korean addresses to official English: road address, postal code, romanized unit; validated vs gov DB