and a long-running thread over on the FliteTest forum that chronicles the needle cutter’s “out in the open” development over the years…
It’s strictly DIY (i.e. no kits) but it’s an inexpensive build (< $20 or so) with parts and materials you’ve probably already got. It can be a bit fiddly to get dialed in… but works well when it is. Being chronological, the most current information in the thread is more toward the end of the thread rather than the beginning.
I’m out of that “game” now but the most active needle cutter activity is probably around Edward Chew’s TimSav machine. It’s a “minimalist” machine that he did “kit” out until the pandemic hit. He’s also got a long thread on FliteTest as well as an active FB group…