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33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
xbrd - Expansion board design for M1r4 (and beyond)
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This is only a draft and may change quite a bit in the future.
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Top view:
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http://downloads.qi-hardware.com/people/werner/tmp/xbrd-top.pdf
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The parameters are as follows:
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Label Description Type Value
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------- --------------------------------------- ------- -------
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B Baseline between J21 and Jxx typ 45 mm
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CB Clearance, back max 22 mm
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CF Clearance, front max 10 mm
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CL Clearance, left (seen from front) max 5 mm
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CR Clearance, right (seen from front) max 15 mm
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FB Baseline to front wall typ 15 mm
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FW Front wall thickness typ 3 mm
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HL Header length (long side) typ 900 mil
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HW Header width (short side) typ 200 mil
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In the drawing, all dimensions are in mm.
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Typical dimensions would be things we decide in the design.
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Maximum dimensions would be limits for the expansion board
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designer (e.g., to avoid bumping into other components or
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walls).
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Unlabeled dimensions are calculated from the parameters and
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have only an informational character.
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