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How To Put A Bevel On The OutSide Of The Acrylic

Discussion in 'CNC Mills/Routers' started by heartpatient, Jul 2, 2022.

  1. heartpatient

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    I am trying to make a a football holder for my football. I would like to have the outside edge of the acrylic to have a smooth bevel on it. Does anybody know how to use one bit and cut out the acrylic holes smooth and put a bevel on the outside ? I am supplying the gcode for what i have created but I can not get nice smooth edges.

    I am new to this and any help would be so great.

    Thanks
    Heartpatient
     

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  2. Giarc

    Giarc OpenBuilds Team
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    It would be difficult to put a smooth bevel on the edge with out using a chamfering or vbit to cut the bevel after the parts have been cut. Unless I misunderstand the question. A picture -- or a copy of the .dxf or .svg file -- of what you are trying to make would be easier to visualize the problem you are trying to solve.
     
  3. Gary Caruso

    Gary Caruso OpenBuilds Volunteer
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    sometimes it's easier to post process using a router table or even your cnc router with a v-bit and a guide bearing to make a chamfer.. using your cnc router like an inverted router table.
     
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  4. Giarc

    Giarc OpenBuilds Team
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    That is how I do it, unless the slot or opening is too small.
     
  5. heartpatient

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    Here is the svg file. And a picture of the base. Its kind of hard but maybe you would understand.
     

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  6. Gary Caruso

    Gary Caruso OpenBuilds Volunteer
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    The SVG is only 2kb and has no content and the pic is difficult to tell what it is.
    I think you want a round over not a chamfer or "bevel"
    Cheers
    Gary

    upload_2022-7-3_18-52-25.png
     

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  7. heartpatient

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    Thanks Gary that is what i need but i was looking for something that I could cut out the holes and make the bevel.

    Mike
     
  8. Giarc

    Giarc OpenBuilds Team
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    I only saw one hole on that svg. no perimeter. For cutting out the profile and holes you need a cutter like this, or smaller if the hole is smaller than 1/4" Upcut Single Flute Solid Carbide End Mill 1/4" Diamond Carbon

    To make a bevel, you need a beveled endmill for the CNC, or router bit for a router table. It would also have to be the angle you want. I have a 90 degree endmill just for doing bevels. I run an engraving tool path around the perimeter of all items I want beveled.

    You could do it all with a ball nose endmill if you were cutting it like a 3D carve, but it would be VERY time consuming and you need CAM software able to generate the gcode. You would also have to cut fairly deep into the spoil board,
     
  9. heartpatient

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  10. Giarc

    Giarc OpenBuilds Team
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