cardboard filament spool - Thingiverse
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LYMAN CARDBOARD FILAMENT SPOOL Construction Manual For use with Lyman / Mulier Filament Extruder V5 and Earlier Versions, 3, 4, & 4.1.
This Cardboard Filament Spool is an alternate to the 3D printed spool shown and illustrated in the Lyman / Mulier Filament Extruder Manual and other Lyman Extruders It is less costly and is easy to make. The life expectancy will no doubt be less than the 3D printed one. I have made several , filled them with filament, but have only emptied one.
No liability is accepted for errors, omissions and the use of this Manual or Product. Users use at their own risk.
The Lyman Cardboard Filament Spool is an open source product licensed under http://creativecommons.org/licenses/by-sa/3.0/
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CONSTRUTION COMMENTS: The spool is made up of 7 parts. The Discs are made with double thick cardboard with a thickness of near 1/4”. The Core is a 3” ID shipping tube. The shaft is a 3/8” wood dowel. The last part is a 3D printed pulley. The inside of the spool width is 3”. The spool will hold 1 kg of filament. Spool Discs Layout: The outer (large) discs are 8” in diameter snd requires two each. The inner discs are the size of the tube core OD, two required. Mine was 3.315” in diameter. The hole in the center is the diameter of the wood dowel, mine being 3/8” diameter.
Cutting the Discs: Fortunately I have a Full Spectrum Laser which I used to cut the discs with. It was set at a speed of 25% and the power was 100%. I guess they could be cut with a CNC router. Otherwise use an Xacto knife.
Tube Core: The tube I used is a heavy wall disc, as that is what I had. The thinner wall tube is fine, but size the inner hole of the large disc for it to fit in. I cut mine to length with a cut off saw for a square cut. The length of my tube was 3.25”. This ends up making the inside dimension of the spool 3”.
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Spool Parts: This picture shows all of the parts except the pulley. The small solid disc is a spacer cut out of a thinner piece of cardboard. I is the same diameter as the Tube Core and is used to hold the tube up from the edge of the disc about 1/8. The wood dowel is 6.5” long.
Pulley: I forgot to take a picture of the pulley before I assembled it, so this picture shows it after assembly. It is 3D printed with 0.85 infill as the hole will need sizing after printing.
Start of the Assembly: First, not shown, the spacer disc is set inside of the large disc. This holds the tube half way into the large disc. Holding it in position the tube is then glued to the disc..I use hot melt but other glues will work such as thick CA glue.
Tube Glued to Disc: This picture shows the tube as glued to the disc. Now turn it over and glue the other large disc to the other end in the same way.
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Assembly Continued: Next turn the first assembly over and glue the second disc to the tube in the same way. Then set the small disc into the large disc hole. It will go in about half way. Glue the small disc to the large disc. Again hot melt works the best for me. Turn it over and glue the other small disc in the same way.
Insert the Wood Dowel: Insert the dowel so it protrudes from one side of the disc 1.5”, the other side will be less. Now glue the dowel to the spool on both sides.
Attach the Pulley: Last step is to attach the pulley. I sized the pulley hole so it would slip onto the dowel with ease. Then I glued it to the dowel with hot melt glue. The outer face of the pulley is 1.375”from the small disc.
Completed: Nice job, you are done. Now wasn’t that fun. You now have a good spool that should last for many reels of filament. However, this design was developed for use with Lyman’s Filament Extruders Versions 3, 4, 4.1 & 5. For other spool winders this may help in the design.
LYMAN CARDBOARD FILAMENT SPOOL Construction Manual For use with Lyman / Mulier Filament Extruder V5 and Earlier Versions, 3, 4, & 4.1.
This Cardboard Filament Spool is an alternate to the 3D printed spool shown and illustrated in the Lyman / Mulier Filament Extruder Manual and other Lyman Extruders It is less costly and is easy to make. The life expectancy will no doubt be less than the 3D printed one. I have made several , filled them with filament, but have only emptied one.
No liability is accepted for errors, omissions and the use of this Manual or Product. Users use at their own risk.
The Lyman Cardboard Filament Spool is an open source product licensed under http://creativecommons.org/licenses/by-sa/3.0/
Page 2
CONSTRUTION COMMENTS: The spool is made up of 7 parts. The Discs are made with double thick cardboard with a thickness of near 1/4”. The Core is a 3” ID shipping tube. The shaft is a 3/8” wood dowel. The last part is a 3D printed pulley. The inside of the spool width is 3”. The spool will hold 1 kg of filament. Spool Discs Layout: The outer (large) discs are 8” in diameter snd requires two each. The inner discs are the size of the tube core OD, two required. Mine was 3.315” in diameter. The hole in the center is the diameter of the wood dowel, mine being 3/8” diameter.
Cutting the Discs: Fortunately I have a Full Spectrum Laser which I used to cut the discs with. It was set at a speed of 25% and the power was 100%. I guess they could be cut with a CNC router. Otherwise use an Xacto knife.
Tube Core: The tube I used is a heavy wall disc, as that is what I had. The thinner wall tube is fine, but size the inner hole of the large disc for it to fit in. I cut mine to length with a cut off saw for a square cut. The length of my tube was 3.25”. This ends up making the inside dimension of the spool 3”.
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Spool Parts: This picture shows all of the parts except the pulley. The small solid disc is a spacer cut out of a thinner piece of cardboard. I is the same diameter as the Tube Core and is used to hold the tube up from the edge of the disc about 1/8. The wood dowel is 6.5” long.
Pulley: I forgot to take a picture of the pulley before I assembled it, so this picture shows it after assembly. It is 3D printed with 0.85 infill as the hole will need sizing after printing.
Start of the Assembly: First, not shown, the spacer disc is set inside of the large disc. This holds the tube half way into the large disc. Holding it in position the tube is then glued to the disc..I use hot melt but other glues will work such as thick CA glue.
Tube Glued to Disc: This picture shows the tube as glued to the disc. Now turn it over and glue the other large disc to the other end in the same way.
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Assembly Continued: Next turn the first assembly over and glue the second disc to the tube in the same way. Then set the small disc into the large disc hole. It will go in about half way. Glue the small disc to the large disc. Again hot melt works the best for me. Turn it over and glue the other small disc in the same way.
Insert the Wood Dowel: Insert the dowel so it protrudes from one side of the disc 1.5”, the other side will be less. Now glue the dowel to the spool on both sides.
Attach the Pulley: Last step is to attach the pulley. I sized the pulley hole so it would slip onto the dowel with ease. Then I glued it to the dowel with hot melt glue. The outer face of the pulley is 1.375”from the small disc.
Completed: Nice job, you are done. Now wasn’t that fun. You now have a good spool that should last for many reels of filament. However, this design was developed for use with Lyman’s Filament Extruders Versions 3, 4, 4.1 & 5. For other spool winders this may help in the design.
