Looking for help making a hole for a hex nut

[a_haraldson]

I'm new to Fusion. I have a mounting bracket design with a solid bottom face, to be 3D printed, but I need space for a hex nut to fit in under the existing mounting points. Attached is an angled view of the top of the bracket, the bottom face is flat.

The cylinders' max diameter is the right size to fit the nut. How do I position a hexagonal hole of a certain diameter directly under the mounting holes on the top of the piece?

[TheCADWhisperer]

@a_haraldson 

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[a_haraldson]

Thanks for the reply, here's the .f3d

[TheCADWhisperer]

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@a_haraldson wrote:

Thanks for the reply, here's the .f3d

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@a_haraldson 

How did you attempt to attach the file?

You cannot use email reply to attach files - you must use the web forum.

You should verify that it is actually attached after replying.

[a_haraldson]

I'm using drag and drop/browse to attach, trying again

edit: that seems to have worked this time. my mistake!

[TheCADWhisperer]

@a_haraldson 

What is the source of the original geometry?

You should observe that there is no solid body in the file - only mesh body.

The mesh body should be converted to a solid body.

You should observe that there are no cylindrical features on the mesh body - only coarsely faceted triangular planar surfaces that sort of look like a cylinder.

Do you have the original file before it was converted to a stl mesh geometry?

Sketch a polygon and dimension so that it is clear what you want...

Are you sure your Units are correct?

I suspect this is 10x larger than what you intended.