Quick mod to improve the basic SOVOL SV01 spool holder. I was never happy with the stock item, as filament spools are a poor fit for the spindle which hampers smooth rotation. This mod is adjustable for for a variety of filament spool sizes/diameters so is extremely flexible.

The mod consist of 3 pieces;

1. "Shell" - clamps around existing spindle to increase the diameter and remove the lip at one end. You will need to print x2 copies of this as they form two matching halves.

2. "Spool Insert" - inserts that clamp the filament spool to the spindle whilst allowing for easy rotation. Given the conical shape of the inserts they can easily accommodate a variety of spindle sizes/diameters by simply sliding them in/out. Print x2 copies.

3. "Spring Clip" - Sits on outside edge to hold everything in place. It's a quick release clip so is easily removed for ease of filament change. Best print this using 100% infill in order to provide sufficient springiness/strength for operation.

See the instructions.jpg for more details.