Silicone moulds to make washer rings and bushing
thingiverse
Make your own O-ring and rubber bushings The rubber parts can be made easily by filling the 3d printed parts with any silicone like window sealant, also known as Silicone Caulking. This silicone rubber has a 25+year outdoor life and can be found in many hardware stores alternatively RTV silicone the type used for molding models will also work. You will need to pour / inject or paste the silicone into the mold then carefully scrape any excess over the top of the mold. it makes a 40mm x 3mm O-ring and a 20x20mm cube with 10mm dia hole. includes an aplicator. **Full Instructions** This is part of an instructable called ONE PERSON SOLAR PANEL INSTALLATION KIT https://www.instructables.com/id/One-Person-Solar-Panel-Installation-Kit/
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