The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Eyeglass Case Padding Redux

    Confronted with a nice metal eyeglass case that had lost its original liner, I traced the outline on paper and scanned it:

    Metal case outline
    Metal case outline

    Unlike the plastic Zenni cases, this one has nice straight edges, so:

    • Eyeball a LightBurn rectangle over the traced image
    • Round the corners to suit
    • Shrink it by a few millimeters to make it fit inside

    Then:

    • Add a perimeter line offset by the 6 mm required to cover the sides
    • Draw a dart in each corner to allow for bending the foam
    • Set the perimeter priority to 1 so it cuts last
    • Put the original outline to a tool layer to remind me how to do this the next time around

    Which looks like this:

    Metal case pad - LightBurn layout
    Metal case pad – LightBurn layout

    Then Fire The Laser into a sheet of EVA foam:

    Metal eyeglass case - padding cut
    Metal eyeglass case – padding cut

    Stuff it into the case, do another one in brown, and the result looks kinda like it should:

    Metal eyeglass case - padding installed
    Metal eyeglass case – padding installed

    That was easy …