Hello. This is a remix of http://www.thingiverse.com/thing:1743397 done by dldesign. I have not changed the functionality of his design, I have however added a "junction box" on the right support intended to house a power switch and a second box on the left support designed to hold up to three accessory switches-- lid designs for the left box have been included with both 2 and 3 mounting holes on the lid.
The spool holder braces replace the spacers for the LCD board and can be used with or without the center filament guide. Guide cup is large enough to include a sponge if so desired.