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Need more info then this is it a 2d contour cut or a 3d contour cut. were is the shape that you are cutting?
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Hello,
I'm new to this forum(really) and and to MasterCam(relatively).
I've been trying to solve this problem in MasterCam X5.
I'll try and be quick in explaining what's happening.
This is my procedure so far:
First I built a solid, and from this Solid I created curves(purple).
And then I made the tool path(light blue, contour cutting) along the curves.
And below is the problem:
If you see the picture below, the tool actually goes down(leaving a pothole on my material), while its chain is pretty straight.
And I've done so far:
I've tried separating the curve in half, changing chain side, reversing chain, putting them in the different levels...but the tool always dips down at the end
of the curve(one at the apex).
How I do fix this? Please help
Need more info then this is it a 2d contour cut or a 3d contour cut. were is the shape that you are cutting?
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Cadcam
Owner, contract Programming and Consultant , Mastercam Instructor and on line trainer at www.eapprentice.net
Some tips: http://www.youtube.com/PrecisionProgramming
Yes it was 3d contour. What im trying to cut is a groove that follows the chain in the picture, if this answers you. Thank you!
Look below also can you shave that file?
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Cadcam
Owner, contract Programming and Consultant , Mastercam Instructor and on line trainer at www.eapprentice.net
Some tips: http://www.youtube.com/PrecisionProgramming
Yeah, I changed that number many different times...it doesn't help...I'll try uploading the mastercam file itself. Thank you so much again.
I am attaching an MCX file for any one to examine.
Thank you!.
If you zoom in really close to where the chain connects to other parts (namely the really small chain in the tight corner) you can see where it is very far from being connected and clean. This is why mastercam is putting the funky moves. You need to clean up the chain first.
this is a few pictures of them.
Asolutely amazing! I even analyzed the chain before putting toolpaths on it: it looked clean...I don't know what to say except, Thank you so much!!!
So I thought I was clean when I connected each broken line(by way of 'Modify Sline') and rechained the toolpath...but then again, the tool moves even more wierd...
What would be the best way to connect broken ends...?
It seems, after looking at it a bit more...that mcam is putting that move in there based on the radius it is trying to achieve and the tool diameter. If you turn off compensation it follows the profile correctly (but the tool is on centerline).
One way to "trick" mcam in this instance...since I'm not aware of a simple fix otherwise...is to use comp - but in the "STOCK TO LEAVE ON WALLS" section put a negative half the diameter (in this case : -.3125" since you have a .625" endmill). Then put a good size lead in/out also. Now you can post the program and the cutter will want to follow the centerline of the contour. On your control, however, you will need to put a positive diameter of your endmill ( .625") and that will keep it on the inside of the contour - old school full diameter style.
There may be a better way but this should get you what you are after. Let me know if this makes sense and works for you - I just ran it on my mill and it was fine.
Thank you all for the replies, I'll try those when I get back to the shop, and report back.
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