binary stl file �? � pB �A \� pB �A � B �A �? � B �A \� pB �A \� B �A �� � B \� B � pB � �� � pB \� B \� pB �� \� B �A \� B � B �A �� � � B �A \� B � B �� � � \� pB �A \� pB \� B �A �� \� B �A \� pB \� B �? � pB �A � pB \� pB �A �? \� pB �A � pB \� pB �? � � B �A � B � pB �A �? � pB �A � B � pB