3piece cross puzzle

3piece cross puzzle
https://ttbbsky.net/3d%E3%83%97%E3%83%AA%E3%83%B3%E3%82%BF%E3%83%BC%E3%81%A7%E5%87%BA%E5%8A%9B%E3%81%99%E3%82%8B%E3%83%91%E3%82%BA%E3%83%AB%E3%82%92designspark%E3%81%A7%E4%BD%9C%E3%82%8B%EF%BC%81/