The BirdBot’s project is open access, you can print a BirdBot leg, test the mechanism, and maybe tweak it ;) here you can free access to the CAD files : https://edmond.mpdl.mpg.de/dataset.xhtml?persistentId=doi:10.17617/3.ETFG41
Thanks to Alexander and Monica for sharing a free-access referral link that is available on the BirdBot webpage. You can read the paper and the supplementary materials for free. https://dlg.is.mpg.de/publications/bb01
