Apparently this is a product for sale in Japan.
The following link is a Google translation of their product page:
?
It has lots of pictures showing lots of details.??
If nothing else, it is inspiring me to start with Mark's files and add in some of the features of this kit.
Yet I am a total novice when it comes to CAD so it may be many months before I have something useful.
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Regards,
Dave, N1AI
Dave, N1AI