Thanks for the design and sharing the FreeCad file! Some small adjustments to the constraints were enough to make it compatible with MakeDo screws. The toy's motor is barely powerfull enough to actually screw the MakeDo screws in more solid cardboard, but it makes removing the screws more fun for the kids. Printed with the smaller side down and with Prusa rPLA. I was about to post it as a remix, but I'm not sure what the requirements are for calling something a remix (besides, it feels weird to take credits for just a few minutes of making adjustments)