Uploaded January 2017 | Updated September 2026, 4 hours ago
A huge thank you to community member Keith Selbo who rewrote the mathematics which define the machine's motions to correct for the tilt of the sled. I had mentioned in a forum post that it was an important unfinished part of the software and Keith took it upon himself to solve what turns out to be quite a difficult mathematical problem in an elegant way.
The effect of of Keith's solution is that as the router sled tilts, the spindle remains perfectly positioned. As nearly as I can measure this means that a line cut from one side of the eight foot plywood to the other is straight.
You can see the new math in action in the video.
A huge thank you to community member Keith Selbo who rewrote the mathematics which define the machine's motions to correct for the tilt of the sled. I had mentioned in a forum post that it was an important unfinished part of the software and Keith took it upon himself to solve what turns out to be quite a difficult mathematical problem in an elegant way.
The effect of of Keith's solution is that as the router sled tilts, the spindle remains perfectly positioned. As nearly as I can measure this means that a line cut from one side of the eight foot plywood to the other is straight.
You can see the new math in action in the video.
