They had a submission 8 years ago[1] but I came across the YouTube announcement[2] of their new 4.1 Kickstarter campaign[3]. It only seeks $16,000 of which they've currently raised $249,000 based in no small part that they've already shipped several successful releases, I'd guess
Their project is open source[4], GPLv3 for the on-device software and CC-BY-SA 4 for the cad files
1: https://news.ycombinator.com/item?id=12705546
2: https://www.youtube.com/watch?v=I5bZfNOZi-A
3: https://www.kickstarter.com/projects/maslow4/maslow41-access...
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