Multiple Filament Dry Holder and Dispenser (Updated 9/19/2013)
by MarkTecWizard, published
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Update - I have three improvements See first two Pictures
1 - The changing of spools was difficult because one of the closet pole shaft holder is totally enclosed and the shaft would not lift straight up. I replaced the enclosed closet pole holder with a 1/2 enclosed pole holder with one from a second set. It is now much easier to change the spools.
2 - The spools would slide back and forth on the shaft during movement and once one of the spools started turning another spool while printing causing the other filament to unravel on the spool. I added tie wraps between each spool and left the tail on to keep the spools separate.
3 - I found when changing filaments the plug was hard to remove and replace. I drilled 1/4 inch holes in the top and added a 3 inch piece of teflon tubing secured with a tie wrap. (don't use 1/4 inch tube from Home depot it is HPFE and it has a lot of friction McMaster has PTFE tubing). When the filament is not in use I loop the end back into the tube which prevents it from slipping back into the bin.
I designed this holder to solve three problems. 1 - PLA needs to be stored in a dry environment to prevent moisture absorption into the PLA which cause printing problems 2 - The Replicator 2 needs to be moved and turned around to change filaments. 3 - The removal of the spool from the spool shaft is a struggle.
This design solves all three problems.
Materials and Price
KIS 17 Quart Omni Box Kmart Item# 011W845995110001 $6.74
Charlotte Pipe 1 in. x 2 ft. PVC Sch. 40 Plain End Pipe Model # PVC 04010 0200 $1.90
Closet Pro 1-3/8 in. White Metal Closet Pole Sockets Model # RP-0039-WT25 $2.72
Crown Bolt #6-32 x 1/2 in. Zinc-Plated Steel Round-Head Machine Screws (8-Pack) $1.19
Crown Bolt #6 Zinc-Plated Steel Flat Washers (30-Pack) Model # 19791 $1.19
Frost King E/O 3/4 in. x 10 ft. Rubber Foam Tape Model # R534H $3.48
Dry-Packs 1-Ounce Moisture Absorbing Silica Gel Indicating Packet B001UYEBNW $5.50
Super LubeÃÂÃÂ® Synthetic Grease (21030) Item no: 8138307 $7.49 (also used to grease z axis rod)
McMaster Carr - 5033K31 Extreme-temp Tubing Made With Teflon Ptfe 1/8" Id, 1/4" Od, 1/16" Wall, Semi-clear White, 10 Ft. Length $ 3.73 per foot
1 - Cut the PVC Pipe to 13"
2 - Mount the Closet Pole sockets in the center and as high as possible without the reel hitting the top lid (use a second open socket to allow for easier spool removal.
3 - Place the reels on the PVC pipe and insert into container and into the sockets. Add tie wraps between spools to stop shifting and spool to spool interference.
4 - Place the lid on the top and drill 1/4 inch holes at the center of each reel at the edge of the top of the container.
5 - Remove the lid and apply the foam tape to the lid at the edge where the lead meets the container.
6 - Add 3" piece of PTFE tube into each hole and thread the filaments through each of the tubes.
7 - Pull on the filaments and decide if grease is necessary. To apply remove the shaft and apply a small amount of grease to the shaft using a rubber glove. I used the grease and it made filament dispensing easier but it is a little messy when you change spools.
8 - If using the tubing this part is not needed. Print the filament holder plug and thread the filament through the plug small side down. This plug stops the filament from falling into the container and creates a seal when not in use The thing file has ears holding them together to prevent the parts from lifting courtesy of whpthomas Ear Raft - Makerware Print Aid thing 2872 . I use them all the time now to prevent small parts from lifting.
9 - Place the container at the back of the unit and position the filament to be used near the feed tube. I removed the feed tube and used a tie wrap to hold the tube in place. Align the tube to the hole and insure the filament feeds easily.
I love that my stock is stored in sealed dry containers and that I can have 3 to 4 colors readily available for printing.
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Multiple Filament Dry Holder and Dispenser (Updated 9/19/2013) by MarkTecWizard is licensed under the Creative Commons - Attribution - Share Alike license.
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