Spool Mount for Prusa Original Enclosure Floor Position

There is a rectangle of M3-threaded holes on each side of the front floor of the Prusa Original Enclosure. And there is enough room there for most (all?) standard 1Kg spools to floor mount, even with increased size of the MK4S Nextruder.

This is a simple floor-mount spool holder with an adapter plate for those M3 mount points. Optionally, the spool holder can be mounted without the adapter plate, though in that case it will be held in place by only one screw.

Enables storing up to four spools in the front of the Prusa Original Enclosure, when used in combination with left and right top Prusa spool hangers. Lower spools align vertically with the upper ones, for a professional looking and space-efficient design.

NOTE: If installed as intended, it will be very close to each side wall and even closer to the front doors. You should be able to put spools in all spool holders including the original one, and slide the Nextruder all the way to both sides without any interference from the spool mounts. If this is not what you see, check the screw mounting positions.
 

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BOM: 

• Filament: https://amzn.to/3PUpk9X 
• M3 screws (2@40mm, 8@10mm per side): https://amzn.to/3zxFgtM
• 8mm ID x 14mm OD Flanged Bearing (optional): https://amzn.to/3CsU9iX 
   

INSTRUCTIONS:

• Print 2 of the "FloormountHalf" parts and either print the included rollers or use 80mm stainless steel shaft and one mount plate per side. Use of flanged bearings makes it look and roll nicer, though it appears to work well (if klugy) without them.
   
• Use 40mm M3 screws and nuts to mate the two sides. Your print should flex enough to get the spindles in after the sides are screwed together.
   
• The left and right mount points on the Prusa Original Enclosure are not symmetrical. See the photos and install such that the mount plate is about 1cm from the edge of the enclosure. 
   
• If not using the mount plate, fasten with a single 8mm screw through the front hole on the spoolholder that is away from the enclosure side panel, into the front threaded hole that is closest to the side panel.
   
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