Noun suffix used to form compound nouns meaning a device or machine that makes something, e.g. アイスクリーム作り器 (ice cream maker).
このパン作り器はとても便利だ。
This bread maker is very convenient.
新しいヨーグルト作り器を買った。
I bought a new yogurt maker.
機 often implies a machine; 作り機 is an alternate spelling for the same suffix.
Standard kanji spelling for the suffix meaning '-maker'.
Alternate kanji spelling; 機 suggests a machine or device.
Compound of 作り (tsukuri, 'making') + 器 (ki, 'device').