Newbie- Importing SolidWorks Parts to Mastercam

[elnerdo]

Hello All-

I'm trying to get the coordinate system of a part I've created in Solidworks to align with the Mastercam coordinate system. Basically im trying to get the front plane of the SolidWorks part to align with the top plane of the Mastercam part.

I've discovered the XForm-Rotate command but the selection for the axis I want to rotate the part about is confusing. Is there a way to select an axis to rotate about? I see "Point" is an option but this seems indeterminate.
I am=

Any suggestions?

[Mike Stevenson]

The point becomes important when coupled with the CP (Construction Plane.)

[elnerdo]

Tell me more...... Is it really necessary for me to align the part to the Mastercam coordinate systems to begin with?

[Lars]

To quote gcode from emastercam forum:

~~~~~~~~~~
In SolidWorks go to Reference Geomtry/Coordinante
Systems.. use that command to create a WCS
that matches how you want your model oriented
in Mastercam.
The simples way is to create a sketch with
your X Y axis on the correct plane.
Save As a parasolid (X_B or X_T)
In the Save As window, go to Options/Output
corrdinate systems and select your WCS in the drop down.
When you import the parasolid, it will be oriented
correctly in Mastercam
~~~~~~~~~~~

HTH
Lars

[Mike Stevenson]

I can say it easier, The Top CP in Mastercam is equal to the Front CP in Solidworks.

[Cammotion]

I'm not sure why Solidworks' top view comes out the front view in other programs. I used to have this issue when I was using Surfcam. I did edit the views in Solidworks once, to get then to match the views of Surfcam. You shouldn't need to do this IMHO.

Having said that, it shouldn't matter how the part comes in relative to the view. You should be able to make a construction plane wherever you want it. Even if you have to sketch some construction geometry to define your view, i.e., two lines that are perpendicular, one of 'em for Y+ and one for X+.

When I first started with cad/cam, I used to translate geometry around to get it pointed the way I wanted. I work in the golf industry, and one day I got a titanium face cup for a driver to machine. I spent some time rotating and tweaking to get all the inside surfaces reachable relative to Z axis. I get things ready to post, and they tell me the part has changed, and here's your new parasolid. Oops!! No more moving stuff.

[Steve Arteman]

Cammotion,
very rare will I get a part in the position I want top to be. being that most of the parts I cut are design in an assembly for aerospace or automotive you typically do not want to move the part. using wcs you can keep the part where it is and relocate the 0,0,0 and the top view to the part you want without relocating the part. I touch this a little in the video I did a while ago. http://www.cad2cam.net/zany.html hope this helps.
Steve
www.cad2cam.net

[Mike Stevenson]

Originally Posted by Steve Arteman Cammotion, very rare will I get a part in the position I want top to be. being that most of the parts I cut are design in an assembly for aerospace or automotive you typically do not want to move the part. using wcs you can keep the part where it is and relocate the 0,0,0 and the top view to the part you want without relocating the part. I touch this a little in the video I did a while ago. http://www.cad2cam.net/zany.html hope this helps. Steve www.cad2cam.net

Steve,

Most good CAD/CAM software allows you to define multible MCS (machine coordinate systems.)

[Cammotion]

Originally Posted by Steve Arteman Cammotion, very rare will I get a part in the position I want top to be. being that most of the parts I cut are design in an assembly for aerospace or automotive you typically do not want to move the part. using wcs you can keep the part where it is and relocate the 0,0,0 and the top view to the part you want without relocating the part. I touch this a little in the video I did a while ago. http://www.cad2cam.net/zany.html hope this helps. Steve www.cad2cam.net

Hi, Steve

My sentiments exactly. As I said, I stopped moving stuff when I painted myself into a corner that time.

We have some guys in the shop using Mastercam, and they aren't comfortable with the WCS. I watched a guy pick two edges of his part, and then flipped through all the choices that selection gave him, and none of them worked. One of the axis' was wrong on every selection. He finally said enough, and moved the part where he wanted it.

MC is a powerful program, and I know it will do it, but he couldn't get it to do what the wanted that day. Maybe the angle was not quite 90 degrees, I don't know, hence my thoughts of making some construction geometry to hook the WCS to.

[Mike Stevenson]

Originally Posted by Cammotion Hi, Steve My sentiments exactly. As I said, I stopped moving stuff when I painted myself into a corner that time. We have some guys in the shop using Mastercam, and they aren't comfortable with the WCS. I watched a guy pick two edges of his part, and then flipped through all the choices that selection gave him, and none of them worked. One of the axis' was wrong on every selection. He finally said enough, and moved the part where he wanted it. MC is a powerful program, and I know it will do it, but he couldn't get it to do what the wanted that day. Maybe the angle was not quite 90 degrees, I don't know, hence my thoughts of making some construction geometry to hook the WCS to.

Very true. With NX it's as easy as falling in love.

[elnerdo]

Ahha, so its more efficient/easier to orient the wcs to the part, rather than the part to the wcs. That makes good sense, especially when there's the chance of a revision that would require the part to be reimported.

Are there downsides to doing it this way rather than bringing the part to the wcs?

[Mike Stevenson]

If it works no. Rotating the part to the MCS in MC is not the best way to go.