Overhead Spool Holder, Enclosure and Under Shelf

My personal design for an overhead filament roller holder inside of Lack sized enclosure, or under a shelf that is over your print area. 

Utilizes the commonly found 90mm filament rollers designed to work with 608 bearings, so feel free to use ones you already have or print off the included ones in the file. 

Incorporates reinforcement rods to improve overall stiffness and prevent filament creep, mounted to the top of my enclosure with three pan head screws. 

This print is A1 Mini friendly and part of my goal to build out a true Mini Maker World. 

Bill of Material:

Filament, 75grams. 

One 3x350mm Rod (CF, Alumnim, Steel)

Three Screws for Mounting. 

Adhesive (CA or Epoxy)

Two 608 bearings (if not reusing an exiting roller).

Tools:

Cutting tool appropriate for the 3mm rod. 

Sand paper for keying, clean up.

Recommend gloves and goggles when working with adhesives.

Screw driver/power driver for mounting. 

Build Instructions:

Clean print of supports off of Hanging Assembly and inside of Roller Body, these should come off fairly easily. 

Cut 3mm rod into two pieces, approximately 130mm and 113mm. 

Insert the  3x130 rod into the Vertical Arm 3mm hole, this does not require adhesive as the bottom rod will lock it in place. 

Place Hanging Assembly upside down (roller support arm on top) and clean up the reinforcement rod channel on the bottom of the roller support arm so that the 3x113mm rod sits easily in the channel.

 Use sandpaper to scuff up side of the 3x113mm rod that will be glued tot he roller support arm, this is called “keying” and helps adhesives to adhere better. 

Once clean apply adhesive of your choice in the channel and install 3x113mm rod. 

Ensure that the rod is compressed tightly to the roller support arm until the adhesives sets, this time should be listed on your adhesive packaging, failure to do so can lead to delamination.

After the adhesive is fully cured you can install the roller into the Hanging Assembley. 

The easiest way to do this is to insert one end of the Roller with a 608 bearing into the bearing slot of the Vertical Arm, then gently press the other end of the Roller and second 608 bearing down and into place. This is a fairly tight fit so just go easy and it should pop in place.

You are not ready to mount your completed Overhead Filament Spool Holder.

The screws are set in a single 90mm line with one in the dead center at 45mm, that should help if you need to drill pilot holes into your enclosure/overhead structure.