4 Replies Latest reply on Oct 29, 2013 2:24 PM by Garrie Russell

    Help needed on sketch

    Garrie Russell

      Hi There,


      I have a situation where a customer has requested the attached file be repeated over a 8' x 4' sheet of aluminum. The want it laser cutout as a screen.


      I must be missing something because the file seems HUGE, how can i make it smaller and insert it over and over.


      I tried making it a block, but it was still unusable, i inserted it and made copies/patterns and it is stiull unusable.


      The rebuild of the drawing takes ages, and freezes my system.


      i have never had to do this kind of repeating pattern, so i am hoping someone can point me in the right direction please.

        • Re: Help needed on sketch
          Deepak Gupta

          Doing a pattern for the cut will surely going to kill your system. Can you rather export it as DXF/DWg and use DraftSight to do the pattern.


          If that is not possible, then create a part by extruding the profile. Now add another sketch below it and extrude that in different direction which will make the part a single body. Finally insert the part into a new assembly and do part pattern.

          • Re: Help needed on sketch
            Kelvin Lamport

            Did you try using the Geometry Pattern option? That helps sometimes.


            You could also try creating a multibody solid of the scroll, patterning, and then doing a Combine > Subtract operation.

            • Re: Help needed on sketch
              Erik Bilello



              My first thought was "Have you run that by your laser operator?".

              Do you even need to pattern it yourself?  Or can the laser programmer take care of that.  Send them a .dxf and ask them.

              My other concern is the fact that it is all (everything I checked anyway) splines.  The last time I was having parts laser cut splines got converted to a series of straight line segments.  We either lived with the results or reworked the pattern to replace the splines with tangent arcs, very tedious.  You may have a program that will convert splines to arcs, but we never found one that worked and was affordable.  I would also venture a guess that the splines account for the file size and slowness. 

                • Re: Help needed on sketch
                  Garrie Russell

                  Thanks everyone for your help, i passed the file onto my laser person, and we are working on a version that the customer is happy with. Customer wanted a totally random pattern, it has been a nightmare.


                  As they are finding out, wanting something does not mean it can be done.


                  Again, thanks for the suggestions.