I know someone who uses an older-than-methuselah cnc mill machine that takes instructions via rs232 or 1.44mb floppy.
While it isn't modern, they still very much use floppies.
this post was submitted on 14 Jan 2026
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I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy:
seeing this pic with the sd card, is there a way to make something similar to cassette tape adapters with an aux plug? like just put electromagnets over the read head and feed it data at the expected speed?