[Joesph Jackman]

i have a solid model with an angled hole. i used create curve on one edge to extract the wireframe but it extracts a nurb spline instead of the curve i want. here is the file. had to change file extension to zip to up load. to open mastercam file change file extension to .mcx

[WallyL7]

Seems there is something wrong with your file...but have you tried "CONVERT NURBS" OR "SIMPLIFY"?

[Joesph Jackman]

Seems there is something wrong with your file...but have you tried "CONVERT NURBS" OR "SIMPLIFY"?

i tried simplify. it did not covet the nurb spline to an arc. i did not try convert to nurbs because the end of the hole is already nurbs and i want it to be an arc.

[WallyL7]

Well, like I said, I can't open your file. You may just have to create your WCS in the view of the angled hole and draw a circle. Pretty simple and quick.

[Joesph Jackman]

Well, like I said, I can't open your file. You may just have to create your WCS in the view of the angled hole and draw a circle. Pretty simple and quick.

did you try to change the file extension and replace it with .mcx? i had to change the extension to upload the file. i just tried downloading the file and changing the extension and it opens with no problems

[WallyL7]

Ok - Not wanting to spend too much time on it I just didn't fiddle with trying to get it open. After changing the extension it did open.

But now I really have no clue what you are trying to do. You have an arc on the flat/perpendicular side to the hole...and obviously a spline where it breaks through a non-perpindicular wall.

I can't see what you are trying to do with this part. If you are drilling or milling it, then use the arc that is there.

Like I said before, you will at least have to create a plane (tool plane/work plane) for that view anyway, and then you can use the arc that is already there. Whatever arc you create on the "spline" side won't help much IMO.

[WallyL7]

Let me know exactly what you are trying to do and I can see if I can get you going in the right direction.

[jamlab]

i have a solid model with an angled hole. i used create curve on one edge to extract the wireframe but it extracts a nurb spline instead of the curve i want. here is the file. had to change file extension to zip to up load. to open mastercam file change file extension to .mcx

I am not at my PC to try looking at your file; but have you tried using Verisurf's hole axis utility. It is a free add-in for Mastercam which may do just what you are trying.

Here is a link to their site.

Verisurf Software Downloads

[cadcam]

The Verisurf Hole axis tool is great for this. but for your part, I would go to the front arc and create a line from the end point and the mid point of the arc then I created line perpendicular to the line and was done.
Remember a full circle in MC the polar angle of "0" is the end point and "180" is the Mid point.

[mafitch7479]

i have a solid model with an angled hole. i used create curve on one edge to extract the wireframe but it extracts a nurb spline instead of the curve i want. here is the file. had to change file extension to zip to up load. to open mastercam file change file extension to .mcx

if you copy the spline to another layer (so you can keep the original), you can use the simplify tool to convert from nurbs to an arc. You might have to break that nurbs spline into multiple segments using the break two pieces tool and convert each segment into a separate arc.

I haven't looked at your file, but I hope that helps.

[Joesph Jackman]

I am not at my PC to try looking at your file; but have you tried using Verisurf's hole axis utility. It is a free add-in for Mastercam which may do just what you are trying.

Here is a link to their site.

Verisurf Software Downloads

i do not see any download for the verisurf hole axis utility when i follow your link. what does the verisurf hole axis utility do?

[Joesph Jackman]

if you copy the spline to another layer (so you can keep the original), you can use the simplify tool to convert from nurbs to an arc. You might have to break that nurbs spline into multiple segments using the break two pieces tool and convert each segment into a separate arc.

I haven't looked at your file, but I hope that helps.

i will try this. i did not try breaking the spline into multiple segments before. maybe that is why i had no luck. thanks.

[Joesph Jackman]

Let me know exactly what you are trying to do and I can see if I can get you going in the right direction.

just want to see if i can convert a spline into a arc so i can pick up z values if in the future i need to do this.

[Joesph Jackman]

The Verisurf Hole axis tool is great for this. but for your part, I would go to the front arc and create a line from the end point and the mid point of the arc then I created line perpendicular to the line and was done.

good suggestion. thanks

[mxer]

i do not see any download for the verisurf hole axis utility when i follow your link. what does the verisurf hole axis utility do?

Would also like to know what the Verisurf utility does!

[cadcam]

try these links

https://verisurf.sharefile.com/d/s5fe7fbdc8ef46608

https://verisurf.sharefile.com/d/saf7e189902b4b26a

[Superman]

i have a solid model with an angled hole. i used create curve on one edge to extract the wireframe but it extracts a nurb spline instead of the curve i want. here is the file. had to change file extension to zip to up load. to open mastercam file change file extension to .mcx

This is the lazy way to get what you want.
- create a surface from the wall of the hole ( in a different color, level )
- untrim that surface
- create a curve on the top and bottom of that cylinder

----- you now have 2 circles, at minimum and maximum extents of that hole. Easy to pick Top of stock of hole & the Depth when toolpathing
- create line from top circle centre to bottom circle for the hole axis
- you can use the circles to setup a plane for additional machining ( ie drill, interpolate, deburr etc )

This is what the Verisuf utility gives you ( or very similar )

[Joesph Jackman]

This is the lazy way to get what you want.
- create a surface from the wall of the hole ( in a different color, level )
- untrim that surface
- create a curve on the top and bottom of that cylinder

----- you now have 2 circles, at minimum and maximum extents of that hole. Easy to pick Top of stock of hole & the Depth when toolpathing
- create line from top circle centre to bottom circle for the hole axis
- you can use the circles to setup a plane for additional machining ( ie drill, interpolate, deburr etc )

This is what the Verisuf utility gives you ( or very similar )

thank you for taking the time to explain. what you wrote is "super" helpful to me. i am sure this technique will be very useful in the future as well.

Again, thanks!!!