Materials Required:
* Two ball point pen springs at least 23mm in length
* Thumbscrew & nut from a Viewloader elbow, Spyder feed neck or similar (recess for the nut measures 10.6mm corner to corner, screw hole is 4.5mm wide)
* Bench vise is recommended for assembly

Printing Instructions:
* Print the loader with supports
* Printing the loader at an angle will reduce the number of internal supports
* Print the button without supports

Assembly Instructions:
* Insert pen springs into the holes on each side of the button
* Insert the button and springs into the socket in the loader
* Using a bench vise (recommended), carefully press the button and loader together until the tabs on the button snap into place. Once the button is installed, it is nearly impossible to remove it without breaking the loader.