MHP Pusher

I HIGHLY RECOMMEND THAT YOU USE THE NEW PUSHER DESIGN OVER THIS. Many improvements have been made, most of all is proper mounting and gear interaction.

https://www.thingiverse.com/thing:3134538


These are the internal pusher parts for the MHP 15. They need to be printed pretty high infill (65%+), and are oriented properly for maximum strength.
Many, many thanks to those who are smarter and better designers than me for making an auto pusher possible at all.

https://www.thingiverse.com