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/thing:2829145


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IMPORTANT:
I have had a chance to work on my second copy, and I noticed the the bottom of the pusher piece was causing friction that could cause it jam. There's a straight spot on the bottom from (around the oval opening) that needs to be rounded out. Also of note is that the fit on the pusher gearbox isn't perfect, and I recommend gluing some 1/16" foam on the bottom (but under the pusher arm) to get it in there nice and tight.

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Minor tweaks to th