It’s an aftermarket spindle, so Onefinity tech support deferred this question (I asked for that help first). I’m trying to pass the question to the forum, where there may be others with a similar question.
To be candid, I think the fact it’s an aftermarket spindle isn’t relevant…I think it’s an opportunity to discount my question. The spindle and its connections haven’t changed. Firmware changed. Also, the means of getting the .ngc file to the controller changed (but that’s because I suddenly lost WiFi connectivity). I’m still not certain that the cause for both problems isn’t related to the 1.6.6 firmware.
I have made no complaints about tech support, realizing that my choice to use an aftermarket spindle makes the problem mine alone. However, recently I contacted Tech Support to ask about compatibility of a Redline controller. There, the answer was similar because I don’t use a Redline spindle. A little AI time on the computer and a couple e-mails with Redline suggest that the controller could be entirely compatible. That’s a sale that could go forward if only for a bit of analysis by a person trained in automation and the proprietary knowledge of the companies.
Perhaps I posted my question in the wrong space; but I’ll follow your advice on getting it to the user community.