Wireframe 2d Swept

[Matthew]

Could someone please take a look at the file "WIREFRAME 2DSWEPTMATT.zip" in the MC8 folder on the FTP Site.

 

I am trying to do a 2d swept toolpath to mill the blue surface using the two green lines as along and across contours. I can get to cut properly, but is is cutting along the X axis (180-0 degrees). I would prefer it cut along the Y axis (270-90 degrees), but when I switch the order of the chains to get this result, it also offsets the toolpath either + or - depending on which way I have compensation set. Any suggestions?

 

I am using Mill V8.1.1 Level 1.

[Guy Arseneault]

Matthew,

 

Change the across cutter comp to right.

 

HTH

 

Guy

 

I don't if it matters, but I tried this on Ver9 SP1 Solids Level 3. Don't have Ver8.

 

[ 02-27-2003, 03:59 PM: Message edited by: Guy Arseneault ]

[Matthew]

That didn't seem to work.

 

The only change I get is if I change along cutter comp to right also, but then the tool path is exactly opposite. Instead of being above the part, is is now cutting too far into it.

 

Any other ideas?

[Guy Arseneault]

Looking from the side , the toolpath is moving from left to right, your cutter is not following right on top of the contour. Mine is.

 

 

Got to go.

 

[ 02-28-2003, 09:50 AM: Message edited by: Guy Arseneault ]

[Matthew]

Can you upload yours with the change you made? I changed my comp as you said and it didn't any difference. It was still above the contour by .125".

[Alan S]

Matt,

I have added a zip file called TRY_THIS to the FTP site, take a look and see if it is of any use.

Guy makes a very good point, if you look in the side view you will notice that your tool path is off the surface you want to machine.

 

[ 02-28-2003, 04:34 AM: Message edited by: Alan S ]

[Guy Arseneault]

Sorry Matt I can't. I'm using Ver9.

 

[ 02-28-2003, 09:50 AM: Message edited by: Guy Arseneault ]

[Matthew]

Alan,

 

I tried your file. If you notice the direction of the cut for the operation you added, I am trying it to go perpendicular to that. But everytime I chain it that way, or change the order of the chains, it offsets the toolpath .125". I did look at the part from the side view, and the green arc follows the blue surface exactly.

[Alan S]

Mat,

Time difference has me beat early finish Friday, but I was referring to your toolpath not the geometry, maybe try 3d swept instead.

[Matthew]

Alan,

 

That is the problem. The toolpath path does not follow the contour. I cannot try 3D swept, it requires Level 2 Mill.

[cadcam]

Matthew Please review my file with cadcam added under the V8 folder.

 

it is following the blue surface and is doing it in the Y axis.

[cadcam]

I had to update the file after going back and reading your post again stating you wanted it to start at 270 and go 90.

 

I have it now.

[Matthew]

Jay,

 

I looked at your file. I am trying to get it to go in the direction opposite to what you have. I seem to have no problem doing what you have done, but when I try the other direction it offsets the toolpath (usually away from the surface, but I have had it offset into the surface by messing around with along & across comps).

 

Thanks,

[cadcam]

so matt you want it to start at the smaller end of the blue surface and go in "X" to the bigger part of of the blue surface? or ar you saying you want the cut to start in the lower right hand corner and move in "Y" in a postive move up & down.

 

if you want any of those I have already had that and chnged to what I had now.

 

Let me know.

[Matthew]

I am trying to get the cutter to start at point

 

x-7.13002 y2.12443 z .16245

 

move in the y direction to point

 

x-7.13002 y6.12820 z-.36464

 

and then step over x.005 until it reaches point

 

x-4.68858 y6.12820 z-.36464

 

Does that make sense? I might be confusing it even more!! Let me know, Thanks.

[cadcam]

Matt I am updating my file.

Look at if from the iso and the again from side.

[Matthew]

That is what I am looking for. I noticed you changed the tip comp to center, and sync option to "by entity". I changed my tip comp (I was sure I tried this before I posted!) and left sync option and I then got the same result that you did.

 

Thank-you very much for your help!

[cadcam]

Matt when I can I try. glad you are happy.

Have a great weekend