Dry Box Spool Holder with Integrated Hygrometer & Silica Bed 3D model preview
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About this 3D model

Here is the complete, Markdown-ready content for your Thingiverse post, formatted for easy copy-pasting. Dry Box Spool Holder for Lock & Lock 3.9L (HPL951) This is a high-performance, space-optimized spool holder designed specifically for the Lock & Lock 3.9L Cereal Dispenser/Rice Container (HPL951). This container is one of the most affordable and readily available airtight options in India. The design is unique because it positions the silica gel bed underneath the spool base. This maximizes the surface area of the desiccant and keeps the center of gravity low, making the dry box both more efficient at moisture control and more stable. Key Design Features Strength-Optimized Hygrometer Holder: The FY-11 hygrometer holder is a separate part. By printing it flat (horizontal), the push-fit tabs are significantly stronger than if they were printed as part of a vertical assembly. Minimal Support Spool Base: The main base is designed to print with minimal to no supports. Modular Base Pads: The bottom pads are separate STL files. This ensures a clean print for the main body and allows you to glue them on to create the necessary clearance for the silica gel bed. Universal Bearing Support: Designed for standard 608RS bearings for a smooth, friction-free filament feed. Bill of Materials (BOM) Required Hardware Container: Lock & Lock 3.9L Cereal Dispenser (HPL951) (https://locknlock.in/products/lock-lock-classics-cereal-dispenser-container-3-9-litres-clear) Bearings: 4x 608RS Rubber Sealed Ball Bearings (8 x 22 x 7 mm) Rod: 1x 8mm Smooth Rod (cut to length to fit the container width) Sensor: 1x FY-11 Digital Hygrometer (standard 48x28mm fit) Included STL Files SpoolBase.stl: The main structural frame. HygroMeterHolder.stl: High-strength horizontal print for the sensor. base bottom pad.stl: Feet to elevate the base above the silica gel. Smoothrod End Cap-BodyPocket.stl: Secure housing for the 8mm rod. Assembly Instructions Print Parts: Print the SpoolBase as oriented. Print the HygroMeterHolder and base bottom pads flat for maximum strength. Glue: Use a strong adhesive (like CA glue or a specialized plastic bonder) to attach the Hygrometer Holder to the front of the base and the Pads to the bottom four corners. Bearings: Press-fit your four 608RS bearings into the Spool Base slots. Integration: Snap the FY-11 hygrometer into the holder. It is a tight push-fit for a secure hold. Setup: Fill the bottom of the HPL951 container with silica gel, place the assembly inside, and insert your filament spool on the 8mm rod.