Mounting expansion boards, pysense and pytrack into a case, what drill holes diameter is used M3,M2.5?

[lollisoft]

Just looked into the expansion board documentation and it is not documented well. Won't buy M2,5 if M3 matches for all these boards :-)

https://www.amazon.de/Aussel-Schwarz-Schraubenmutter-Standoff-Sortiment/dp/B01DW1Y1VC/ref=sr_1_1?ie=UTF8&qid=1502653393&sr=8-1&keywords=platinen+abstandshalter

Thanks, Lothar

[robert-hh]

@lollisoft M3 matches the expansion board. Looking at the pitctures in the docs, PySense and PyTrack seem to have 2mm mounting holes.

[dbrgn]

Yes, mechanical specifications for the microcontroller boards and expansion boards are missing. Would be nice to have mechanical drawings of all aspects of the boards.