Contour Mode Pocket Recognition not detecting holes

[MothDesign]

Hoping for some help with the Pocket Recognition for Contour Mode when attempting a 2d contour milling operation.  The design is basically like a peg board with 12mm holes. 

I would like to avoid needing to select a contour for every single hole and have previously successfully used Pocket Recognition to automate this process.  For some reason, Pocket Recognition is not working for this design and would really appreciate some help.

I don't want to use the drill function as I don't have a large enough cutter and want to avoid splintering with a compression bit anyway.

[engineguy]

@MothDesign 

When using the "Contours" selection you do not need to inividually select every hole, just place your Cursor anywhere on the top surface and click, all edges will be selected, in the attached example this also selects the outer edge of the stock, to have it only select the holes then go to the "Loops" option and select "Inner Loops" and the outer edges will be deselected and you will have all your holes selected.

When using the "Pocket Recognition" then you need to make sure that the "Include Holes" option is enabled (Checked) as in the attached file, you can then use any/all of the Filters to set Min/Max Radius, Min/Max Depth etc, etc.

It all seems to work as expected here, example file below for you to study settings.

[MothDesign]

Thanks @engineguy I've successfully used the function previously but am having no luck with this file.  If you have time, I'd appreciate you taking a look at the file to try to figure out what's going wrong so I can avoid this problem in the future.

[engineguy]

@MothDesign 

Weird, not able to do much with your file, seems the Sketch has multiple duplicated Lines/Arcs and was a pain so I just did a new "clean" version and instead of using a Sketch and trying to extrude the holes I just created two holes and then used the "Pattern" facility in Design to create the layout of the holes, way easier than messing around with Sketches, yes, they work but, I prefer to work with the Model as much as possible, I just find it easier for me!!

I have left the Timeline History in the Design mode so that you can see how little work I had to do to re-create your job !!

Anyway, try out the attached file and double check the hole positioning as they seemed to have odd distances from the edges !!

[MothDesign]

Thanks @engineguy I probably should have mentioned the sketch was an imported DXF file which I'm guessing is the root of most evil when it comes to Fusion.

[engineguy]

@MothDesign 

Yep, imported .DXF files are a pain in most CAD-CAM softwares, they are often produced with low end/free softwares and can be very "iffy" to say the least, I took the position dimensions from the Sketch so they could easily be wrong so if I was in your position I would start from scratch as I did and that way you will get it spot on.

Importing a file from an external source in order to save some work/time always looks like a good idea but as you have found with this one the time/effort that has gone into getting it sorted more than negates any advantage gained by importing the file in the first place.

Usualy the best file types to import are .STEP and .IGES, these are solid models and are much more easily worked on, Fusion is a Parametric Solid Modelling software so sticking to importing solids is usually a lot less painful !!