Geometry problem

[Jakub Podgorski]

I have a problem with creating the arc with create arc endpoints command. The point is that i would like to create it in 3d mode to make both endpoints on a different z depth. When i try to do that it creates me the arc wich is parallel to the current C plane and both endpoints are on the z depth of a first point which i snaped to and obviously, as a 2D distance between the points which i wanted to snap is smaller than the 3D one which is a radius which i want it shows me 4 arcs to pick one from instead of two.

[gcode]

you need to create a plane between the two endpoints..

 

draw a 3D line between the 2 points

 

break it in the middle

 

switch to 2d mode and set your Z depth at the midpoint

 

use the create line perpendicular command to create a line at the center of the 3D line

 

use the planes/ geometry command to create a plane and make it your consturction plane..

 

now drawing your arc is easy..

 

I'm sure there are better/easier ways to do it, but thats how I'd go about it.

[Dan_AKA_ROY]

That is a clever workaround. Good technique, gcode..

 

Of course, if you are attempting to create the arc between two endpoints of different arcs (arcs created on a different cplane) - you won't be able to fillet them, Jakub. In that scenario, try doing a blend splines function. May want to trim off a little from the arcs where they meet at the endpoint. The created spline between the endpoints will be "in 3D space". In other words, they won't lie on a construction plane.

 

Editing splines can be tricky in Mastercam. Takes some practice.