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This topic contains 11 replies, has 4 voices, and was last updated by  Mike 2 years, 6 months ago.

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  • #15278

    Dave
    Participant

    What’s the trick to get the toolpath to recognize an island? I’ve tried selecting the geometry all at once, sequentially, and by creating a contour with all the geometry, but it just cuts right through the island.

    #15279

    jrmach
    Participant

    Your island has bad geometry.Check to make sure of no gaps,everything on same plane,no duplicate geometry.

    Make sure you can chain select the island.

    #15280

    Mike
    Participant

    Hey Dave,

    Attach your part file to a reply to this forum and i can take a look at what could be happening with the pocket. But like JR said it is most likely caused by having bad geometry in the pocket. But if that isn’t it just attach the file to a reply and we will take a look at it for you.

    #15281

    Dave
    Participant

    I think you must have nailed it with the bad geometry. I tried it again after checking for gaps, and it worked. Thanks.

    #17104

    Kevin
    Participant

    Hey guys. Same problem here. Have a pocketing routine I need to do that has an island in the center of it. Went thru and fixed my drawing (was a bit off and could not chain select) Can now but still cant pocket this thing with the island. HELP! Thanks,

    Kevin

    #17105

    Kevin
    Participant

    here is the dxf

    #17106

    Kevin
    Participant

    Well I tried to upload a dxf and a bbcd file and keep getting an error that the file type is not allow???

    #17126

    Mike
    Participant

    Hey Kevin,

    ZIP the File up and then try and attached it, You can ZIP it by Right Clicking on the file outside of BobCAD and then click Send To. then go over to Compressed (Zipped) folder.

    Then attach that file and we can take a look at it .

    Also what version of the software are you using to create this toolpath.

    #17129

    Kevin
    Participant

    Hey Mike. Thanks for the help. Im using V24. Tried mill 2d and 3d. I dont think this should be that hard but I just cant seen to get it. Here is the .zip file. Thx

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    #17135

    Mike
    Participant

    Hey Kevin,

    I open your Part file and everything looks good. What I did was Blanked out the two large shapes you have on the screen so they were no longer in the CAD Window.

    Then I clicked Select all and then Right Clicked inside the CAD Window and went down to Entities Summary. In the Middle Column that says selected, it said there were four Entities Selected and 20 Total (The Total does count the entities even if they are blanked out) I then Clicked OK to leave the Box and then Clicked Select All to be sure I had everything other than the blanked out Geometry. and then Clicked Delete on my Keyboard.

    Then I went back into the Entities Summary and I could see I had none selected and my total dropped to 16

    Then I made my toolpath. as you can see from the attached part file.

    Those 4 entities could cause you a problem if, when you select your geometry, you are dragging a window around the entire part. Because then you will be selecting the entities as well as you geometry and that would mess the toolpath calculation up.

    The picture attached named Blanked out and selected, shows the Entity Summary after I blanked out you drawing and select everything in the CAD Window.

    The Picture named Deleted 4 Entities is the entity summary after I deleted the 4 Random Entities.

    They could have come from anything, so if you cleaned up your geometry at all it may be left overs of that. Just be careful when cleaning up to be sure you don’t leave any tiny lines in the drawing.

    You can delete the toolpath I created, It was just placed so we could see that the toolpath will go on the part after it was all cleaned up.

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    #17139

    Kevin
    Participant

    I could not open your file (must have been with a different version). I am using v24

    I understand your explanation …. doesnt make sense tho as you cant see any of these mystery geometries but I was able to do as you described and I was able to delete the 4. Bingo! Allows me to create a tool path now.

    Thank you very much!

    Kevin

    #17143

    Mike
    Participant

    Hey Kevin,

    If you were unable to open the part file I sent then, you may be on an older build because I used V24 when I created it.

    To update, hover your mouse over Support at the top of the page and go to the column on the left that and click on Updates. Then click software Archives and download build 546 for V24. Then download it and make sure when you run the update, you have your V24 closed down otherwise it will not update.

    And the entities that we are deleting are visible but they are very small. I saw one when I put the drawing into a different view. But it was tiny and barely visible. those are the kinds of things that will cause big problems when trying to compute the toolpath.

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