You can add my first QMX kit to the list of blown MPCs.? I believe that I caused the failure by testing out of the provided enclosure.? Pressing the encoders and buttons can flex the boards if not supported correctly.? My second one works as per specifications.? I am now cautious about supporting the boards when testing outside the enclosure.? I am looking into nylon standoffs to replace the screws that hold the mainboard to the display to see if that provides better board support.
The QMX is a very dense package with very little room for error.? It is GREAT if you want portability, not so if you do not need the small size.
Hans has put a lot of capability in a tiny package with several innovations that require new methods of construction and troubleshooting.? I believe that once learned, there is a much higher success rate.? Attention to detail and parts alignment are critical for this kit.? It's not one to be your first build.? I wish there were a "shack" or "+" version that would be about three to four times the size of the current QMX.? The QCX+ is a good example.
This is only 3 of over 1,000 kits sold, so it is not a high failure rate.? We are just the unlucky ones to be in the minority.
73
Evan
AC9TU
