Thingiverse
Filament Spool Tower
par ontherundesign
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The spool holder that came with the Lulzbot Mini is a rectangular bar bolted at one end. It seems ready to snap off any day. I wanted to design a better spool holder. These are the design considerations:
• tool-less installation & removal
• closer to center of the print head's movement
• supported at both ends for stability and strength
• small rod diameter to minimize friction
• minimal gap between rod and hub to minimize swinging motion
• maximum strength for minimum filament weight.
You will need three round rods half-inch diameter and eight inches long. You can buy steel rods, round wooden sticks, or aluminum tubing at Home Depot, Lowe's, or any other hardware store. You can even order rods and tubing at exact length on Amazon. I think aluminum tubing provide a good balance of weight and strength. There was no sag or sway even with 10 pounds of weight.
The half-inch rod/tubing works with any spool hub that has an inner diameter close to half-inch. The ideal inner diame
• tool-less installation & removal
• closer to center of the print head's movement
• supported at both ends for stability and strength
• small rod diameter to minimize friction
• minimal gap between rod and hub to minimize swinging motion
• maximum strength for minimum filament weight.
You will need three round rods half-inch diameter and eight inches long. You can buy steel rods, round wooden sticks, or aluminum tubing at Home Depot, Lowe's, or any other hardware store. You can even order rods and tubing at exact length on Amazon. I think aluminum tubing provide a good balance of weight and strength. There was no sag or sway even with 10 pounds of weight.
The half-inch rod/tubing works with any spool hub that has an inner diameter close to half-inch. The ideal inner diame
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