3d Contour not tangent to line

[n_tydingco]

Hey folks,

 

Using X4 MU3 to generate a 3-d contour (chained a single, sloping line entity.) During the verification, it appears that the point of tangency does not shift as the part starts up the slope. I tried to attach the file, but received an error, so here are some of the settings:

 

Contour (3D)

Cutter Comp (Left); Type (Wear); Tip Comp (Tip)

Max depth var. (.0005)

Lead in/out: Tangent (50%, 50%, 90deg, .05 Helix ht.)

 

I can e-mail the file if needed.

 

As always, your help is greatly appreciated!

 

-Norbert

[email protected]

[Guest]

Hey folks,

 

Using X4 MU3 to generate a 3-d contour (chained a single, sloping line entity.) During the verification, it appears that the point of tangency does not shift as the part starts up the slope. I tried to attach the file, but received an error, so here are some of the settings:

 

Contour (3D)

Cutter Comp (Left); Type (Wear); Tip Comp (Tip)

Max depth var. (.0005)

Lead in/out: Tangent (50%, 50%, 90deg, .05 Helix ht.)

 

I can e-mail the file if needed.

 

As always, your help is greatly appreciated!

 

-Norbert

[email protected]

 

 

Project, Project, Project

 

3D contour does not maintain tangency, it only follows the line

[n_tydingco]

Project, Project, Project

 

3D contour does not maintain tangency, it only follows the line

 

Jim, Thanks The user tells me he used to be able to do it in V9, but I tried the same thing and he is incorrect. So, Project it is!

[Guest]

Jim, Thanks The user tells me he used to be able to do it in V9, but I tried the same thing and he is incorrect. So, Project it is!

 

Technically, it "can" be accomplished with a 3D contour BUT, you'd need to do it as a project first and save the tool path as geometry, then chain the saved geometry and a 3D contour could "appear" to respect a 3D surface.

[Richard Thomas - Mastercam UK]

I've done it before, theoretically...

 

If the contour slopes in Z as it travels along the X axis, then you can use Xform Offset Contour while in the Front Cplane (looking at your profile side on). Offset upwards by the tool corner rad. Then back in the Top Plnae, you can 3D contour the new profile with Tip Comp set to Centre and the Depth set to zero.

 

Backplots great but never ran it on a machine!