Circle Jig for Makita RT0700 Router (and most clones)

thingiverse

Edit 2020-02-19: Thanks to [p4nd4x](https://www.thingiverse.com/p4nd4x) for his [remix](https://www.thingiverse.com/thing:4170010)! He did a splitted version so you can print in two parts without support. Furthermore he created a printable slider so you need only two hex M5 screws instead of a part of flat aluminum or similar. Since all available designs for Makita circle jigs on Thingiverse didn't either look stable enough or needed parts currently not easily available I designed a new one. With simplicity and printability in mind I designed this one. Unfortunately this thing is unprintable without support but at least it does not waste to much filament and should not need much post-processing. Everything you need to complete is a piece of whatever (I used flat alumininum) with a profile of 20x5mm (max 6mm), a ~5mm thread on one side (slot is 5.5mm) and something pin-like on the other. If you keep a distance between pin and threaded rod of ~45mm you can create circles of ~8mm radius up to 200mm without a gap in between, depending on how much material you keep around the center-pin. You should keep some material (>10 mm) beyond the threaded rod to give the slider more stability when set to maximum radius. To avoid scratches on the surface make sure the threaded rod does not protrude. I used a M5x20 sunk head screw glued in with epoxy. The knurled grip for a M5 nut is available as my [Thing 3730440](https://www.thingiverse.com/thing:3730440). The design was based on [Thing 2611305](https://www.thingiverse.com/thing:2611305) and tested on a Katsu clone so it should fit the Makita routers as well as the clones.