Router jig for concealed cabinet hinges

thingiverse

To make Blum type concealed cabinet hinges, you will need a jig that works well with your router. These specialized hinges can be easily found at many retailers, such as Ikea (Utrusta, Komplement and Integral). The design of the template assumes that your router guide diameter is 18.3mm and you're using a 9.5mm bit. However, this size can be adjusted if needed. Another variable to consider is the space between the mounting screws on the hinge; it seems that some hinges use 45mm while others use either 48mm or 42mm. If issues occur during customization due to screw holes conflicting with the main hole, you can resolve them by using a milling bit of larger diameter. While jigs from the market can achieve similar results, they often demand the use of a 35mm bit for drilling and might require drilling a deeper central hole - an issue especially prevalent when dealing with thin walls. On the other hand, this custom tool utilizes only your standard router, complete with its installed template guide, along with a cylindrical milling bit. Two 3mm screws hold the jig firmly in place as you work. Once completed, the screw holes can serve as guides for the hinge mounting screws. It is worth noting that newer Blum hinges employ a different fitting mechanism; they utilize a screwless pressure device rather than traditional mounting screws. This method still requires drilling an additional 8mm hole where the screws were supposed to go. When printing your custom jig, consider using walls with slightly increased thickness for added strength. Support structures are not necessary when creating this specific template, which indicates a straightforward design suitable for even more challenging tasks in wood working.