Fusion 360 CAM

Advert

Fusion 360 CAM

Viewing 11 posts - 1 through 11 (of 11 total)
  • Author
    Posts
  • #431685
    Old School
    Participant
      @oldschool

      I am stuck trying to do the cam for facing a round piece of bar in my KX1 mill.

      Struggling to figure out how to put the depth of cut on to face the bar prior to the rest of the operations.

      Pobably missing the obvious, but not understanding the height tab settings read the help file but just not getting it.

      Any help gratefully received I live about twenty minutes from Leicester.

      Thanks

      Oliver

      Advert
      #15246
      Old School
      Participant
        @oldschool
        #431687
        JasonB
        Moderator
          @jasonb

          Depends a bit how you have set your stock up.

          This part had 1mm extra stock all around and on top. Looking from the side the light blue line is the top of the stock and the dark blue the top of the part so the facing cut will clear 1mm of stock off the whole area of your stock

          face.jpg

          face2.jpg

          #431688
          JasonB
          Moderator
            @jasonb

            If you click the top left File tab on fusion there is an option in the dropdown to share, do that and post the link and I'll have a look at the part in the morning unless someone beats me to it.

            #431692
            Old School
            Participant
              @oldschool

              Jason here is the link

              https://a360.co/2AEutML

              #431713
              JasonB
              Moderator
                @jasonb

                It is much like I showed above.

                You have the top of the facing cut set at the top of the stock but you also have the bottom of the cut at the same top of stock, this puts the light and dark blue planes on the same level of 1mm above the top of the work

                os1.jpg

                If you just change what is in the Bottom Height box from Stock top to Model Top that will then take the cut down to the correct height as can be seen by the dark blue bottom plane moving down

                os2.jpg

                The second pocketing operation needs looking at as it is air cutting all the material already removed by the adaptive. Also set the tool to cut outside the boundry as it is leaving a lip on the outside of the rim. If you want it to leave the internal fillet where hub joins the recess then you will need a corner radius cutter, if you want that sloping bottom to part of the recess then you will have to set some very shallow stepdowns in which case best to stop the pocket short and do a 3D contour to follow on otherwise it will take ages if you set all of it with a shallow stepdown

                External chamfer cuts still need to be added and your final drilling opperation

                #431714
                JasonB
                Moderator
                  @jasonb

                  Just a separate comment for anyone following along

                  There are quite a few people that seem to be put off F360 due to it's cloud based storage but this is a prime example of it's advantages. The File in the link provided by Old School is not just a part file like sending a STL file but the exact item he has been working on so not only do I get the actual modelled part but I get all the various setup, milling operations, tool choices, tool paths etc that he has been using so easy to see where the problem was and for anyone else to tweak the same file to suit their machines and available tooling without having to start with just the basic part.

                  #431787
                  Old School
                  Participant
                    @oldschool

                    Jason I have just machined the part that change worked, you are right a lot of air milling going to put up with only three more to make.

                    For the other side of the hub I am going to make a fixture and turn it in the lathe it seems the easiest way yo do it and the lip will disappear as part of the process.

                    Thats something I have learned on with the next project insert cylinder heads for the tether car engines should be able to make accurate combustion chambers, the volume is critical.

                    thanks very much

                    Oliver

                    #431799
                    JasonB
                    Moderator
                      @jasonb

                      This has the 1mm facing cut off the top and the adaptive has been altered to remove more material and finally the pocket cut has been started lower down to save air cutting.

                      I have not altered any speeds or feed rates but time has been reduced by 6mins

                      LINK

                      #431806
                      JasonB
                      Moderator
                        @jasonb

                        played with it a bit more and changed from a 10mm cutter to 6mm which can run faster and be fed faster without getting too large a chip load and time is now down to 17mins from your original 28mins. Also uses a bit more of teh side of the cutter rather than blunting the first 1mm.

                        Version 2

                        #431919
                        Old School
                        Participant
                          @oldschool

                          Jason

                          Thanks for the work you have done I get the error message below when I try to load it. Not brave enough to do the fix will pop the laptop into the local computer fix it place.

                          "This aplication failed to start because it could not find or load the Qt platform plugin "Windows" reinstalling the application may fix the problem"

                        Viewing 11 posts - 1 through 11 (of 11 total)
                        • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

                        Advert

                        Latest Replies

                        Viewing 25 topics - 1 through 25 (of 25 total)
                        Viewing 25 topics - 1 through 25 (of 25 total)

                        View full reply list.

                        Advert

                        Newsletter Sign-up