I figured out a way to extend CHAOSDRUCKER’s CC-RS Rewinder System, a remix of Vincent Groenhuis’ Universal Rewind Spool Holder (MM) to be able to work with 2KG spools. This is a extended version of my Universal Rewind Spool Dry Box, Drybox mounted to Prusa XL / 3030 Frame Using Filler Brace.
I took my dry box bottom, a remix of K2ij3’s Filament Spool Storage Box as the foundation for this version but I extended the length of the base by 56mm to accommodate the thicker spool. It has the same PC4-M10 pneumatic connector but with the flexibility of a gyro base to allow the filament to move unheeded as it is fed into the printer as the 1KG version. This does let some air into the dry box but the unhindered filament feeding is more important then getting a filament jam. My first version of this with a fixed pneumatic connector, the filament got stuck in the dry box and would not feed to the printer. This version with the gyro base has not had any problems so far. I extended the height of the dry box bottom to accommodate 2KG Prusament spools. I printed K2ij3’s gasket in TPU and glued it in the dry box bottom groove.
The alternate window version for the bottom with a window and window frame to allow you to see inside. The window has a viewing area of 100mm x 35mm. This version uses an additional (8) M3x8 countersunk head screws and M3x3 brass heat set inserts to fasten the window frame to the bottom. I cut and snapped the 2mm acrylic that I purchased from a local hardware store. The acrylic was sanded to fit the window frame. Since, it was such a tight friction fit no glue was required. I also made yet another version of the window bottom but included an optional hygrometer to monitor the humidity.
I took my CC-RS Rewinder System for 2KG Spools, a remix of CHAOSDRUCKER’s CC-RS Rewinder System, a remix of Vincent Groenhuis’ Universal Rewind Spool Holder (MM) to be the heart of the rewinder system. This rewinder is great since you can change the tension on the spring by rotating the dial. I needed a way to mount this to the Prusa XL 3030 Frame. I used Dark_Asylum’s CC-RS Rewinder Adapter for Filler System as half of the solution. But I reduced the height the rewinder adapter to allow clearance for a removable desiccant container to be used. For the other half of the solution, I created a modification of Frol’s 2020/3030 profile brace for Filler Spool Holder - Parametric, a remix of HugoG’s Filler - Filament Holder by splitting the vertical brace for M4 in half and adding (4) holes for M3 countersunk screws in the top half and M3x3 heat set inserts for the back half that allows the dry box lid to be attached to the Prusa XL 3030 frame. The back half was also narrowed to match the profile of the 3030 frame and allow clearance for the acrylic frame I use to enclose the bottom half of my printer. This way the CC-RS Rewinder system has a way to be mounted to the dry box and the dry box has a way to be mounted to the Prusa XL 3030 Frame. The vertical brace has the same offset mounted to the dry box lid to center the spool inside as the 1KG version. So the lids from the 1KG can be used.
The alternate lid, desiccant container with cover allows the use of 2-5mm desiccant beads to help keep out moisture from the 1KG version can also be used. This version uses an additional (2) M3x10 socket cap screws and M3x3 brass heat set inserts to fasten the lid and desiccant container together. The desiccant container with cover uses (8) M3x8 screws and M3x3 brass heat set inserts. This will allow you to replace the desiccant container while keeping the lid attached to the Prusa XL frame. There are a total of (9) holes in the lid that was at first to hold brass heat set inserts. Initially, I just had a cover that went on the lid. This worked fine but I found that I had to remove the lid to replace the desiccant beads. So I adapted a removeable desiccant container with the original design and just use (2) of the brass heat set inserts to allow the lid to still be mounted when changing the desiccant beads. There’s about a 20 percent drop in humidity using the desiccant version.
The grill of the desiccant container bottom and top cover is slicer generated. In Prusa Slicer, import the lid cover as one object with multiple parts. Add an infill modifier for an infill of 30% with any pattern. I chose Honeycomb for mine. Also, add a layer modifier for top shell of 0, bottom shell of 0, and a layer of 0.2.
For either version, you will need to download my longer hub from CC-RS Rewinder System for 2KG Spools, 2x Nuts, 1x Clutch, 1x Adjustment Cover from CHAOSDRUCKER’s CC-RS Rewinder System and K2ij3’s Filament Spool Storage Box’s gasket and latches to use this. I used K2ij3’s original thicker box version as the base. The original Prusa XL spool hardware can be reused to mount the dry box.
I uploaded a Prusa Slicer 3mf file of everything to show orientation. The base, lid and window frame will require supports. The file numbering is in relation to what spool print position. Ex: Base Window 196 2 means windowed base for spool print position #2. I'm still new to creating files for 3D printing. This was cut, pasted and built in 3D Builder. The models are in several pieces as I noticed the more I merged parts the more distortion in printing. When importing the 3mf files in Prusa Slicer, I load the file as a single object having multiple parts and the file loads how it is supposed to look.
Max Spool Dimensions:
Diameter: 210mm
Hole Minimum: 30mm (diameter of CC-RS screw)
Width Maximum: 140mm (length of CC-RS screw)
Hardware and Materials:
Lid
(4) M3x40mm socket cap or button head screws
Optional Desiccant version - same as above with additional
(2) M3x10mm socket cap or button head screws
(8) M3x8mm countersunk screws
(10) M3x3 brass heat set inserts
Base
(4) M3x40mm socket cap or button head screws
(1) PC4-M10 pneumatic connector
(1) PTFE tube 4mm OD
(4) M3x12mm socket cap or button head screws
(4) M3x3 brass heat set inserts
Optional Window version - same as above with additional
(8) M3x8mm countersunk head screws
(8) M3x3 brass heat set inserts
(1) 103mm x 39mm acrylic (2mm thick)
Optional Hygrometer version - same as above with additional
(1) standard rectangular hygrometer (48mm x 28mm)
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CC-RS-Rewinder System for 2KG (For Each Spool)
(1) M8x190mm Threaded Rod
(2) M8 Flat Washer
(2) M8 Lock Nut
(2) 608-2RS Skateboard Ball Bearings
The author remixed this model.
Extended to fit 2KG spools with the modified CC-RS rewinder I remixed.