Pumprake with swappable 3D printed rake adapaters

Halloween is about a month away and stores will be lined with these electric pumpkin carving tools.

I thought it was time I revisited a project I started Halloween of last year. The below is the story and build, but the TL;DR can be found in this video.
 
I created a 3D printed part that allows you to swap rakes in the Pumpkin Master electric pumpkin carver.

You can check out the video then jump to the STL file and print your own: https://drive.google.com/open?id=0BzY3yLosRyyxMzAxdFo3Y3ZHTUU 

You can find the Pumpkin Masters electric carving tools on Amazon, but I generally find them cheaper at CVS and Walgreens. https://www.amazon.com/Pumpkin-Masters-Halloween-Activties-Easy-Grip/dp/B0160EH5PM

Want to know more, keep reading after the break.