The bad news is I’ve got no plans to restock. My day job has grown up and I’ve run out of capacity for this project, and I miss building things that aren’t Polargraph machines!
If you’re still in the mood for a drawing machine (and why wouldn’t you be?!) then I have long looked enviously at the work of Bart Dring (inventor of makerslide, buildlog.net, polarcoaster) who was making a beauty a little while back: https://twitter.com/buildlog/status/1131942367974576129 and is active on #plottertwitter and the drawingbots community on discord. Keep your eyes peeled for his work because it’s the best.
I have stopped making machines a few times before, and it hasn’t stuck so I might be back… But I’m not expecting it. I do have a fairly big stock of motor brackets left over, so drop me an email with your address if you’d like some.