Has anyone tried a surfacing bit?

I know it wouldn’t make it completely flat as a surfacing bit is supposed to but would it or does it work at all at helping flatten a surface out or does the fact that it is riding on the material f that up?

Caleb Yager wrote:

I know it wouldn¢t make it completely flat as a surfacing bit is supposed to
but would it or does it work at all at helping flatten a surface out or does
the fact that it is riding on the material f that up?

The fact that you are riding on the material means that as soon as you have cut
enough for the sled to tilt and fall into the already cut area, the surfacing
bit will dig in at an angle and give you problems

the top of the material is the reference surface, the fact that it’s referenced
by the entire sled, not just the bit means that small dips can be ignored, but
it does mean that you can’t use it to resurface the board.

David Lang

what you could do is setup wood rails as you would if you were going to flatten
a board with a router (long rails going down the length with a sled that lets
the router move side to side) and then have the maslow pull the router back and
forth across the board to do the tedious cutting. but you would have to watch
out that the intermediate sled does not jam.

It would be an interesting thought to try and setup a mode for the maslow that
would support this. I could see something where the maslow gets rotated 45 degrees with anchors on the moving sled and the ends, something like:

This would need different kinematics as the top and bottom anchors move with the maslow. I think this is a common enough task that this would be a useful thing to do at some point, but it would really change the calculations.

This setup would also be really useful for drilling dogholes in a workbench or things like that.

It would also have a chance of making a decent setup for other cases where a gantry system is needed (and makes FAR more sense than the usual approach of leaving the anchors in the corners, although it’s possible that could still work)

@bar is this something to consider at some point? I think it would force us to make a proper kinematics module (which we really should do anyway) so it’s not a trival change and would require a lot of steps of prep/cleanup work before we did so.

2 Likes