Tag: blender

  • Longboard Footstop in OpenSCAD

    Longboard Footstop in OpenSCAD

    My local library, the Hillsboro public library, has 3D printing open labs — every Monday evening for a couple of hours, the library accepts .stl files on thumb drives and prints them for free over the next week. This is such a cool resource, it seems irresponsible not to take advantage of it.

    For my first project, I decided to design a longboard footstop.1If imitation is indeed flattery, RipTide and PSD Designs should feel complimented. ;-) Earlier this week, I started researching 3D CAD software and settled on OpenSCAD.2Pronounced open ess cad. OpenSCAD is different from most 3D CAD software in that you program a part instead of manipulating objects on a screen. For example, this is how I defined the tab of the footstop:

    union() {
    tab_s = tab_length - tab_width/2;
    tab_r = tab_width/2 - stop_chamfer;
    tab_h = 2*(tab_height - stop_chamfer);
    translate([-tab_s/2, 0, 0]) cube([tab_s, 2*tab_r, tab_h], center=true);
    translate([-tab_s, 0, 0]) cylinder(r=tab_r, h=tab_h, center=true);
    };
    

    Designing the footstop, some of OpenSCAD’s other limitations became obvious: fillets and chamfers are not easily defined, especially along curved intersections of primitives.3I’m gathering resources that address this issue.

    This is my third iteration of the footstop and I think it’s good enough to print next week so Jamison can try it out. I suspect I still have a lot to learn when it comes to getting a design ready to print. For example, how important is it that this footstop be hollow? If it needs to be hollow, what’s a reasonable wall thickness? I experimented with MeshMixer a bit, but expect I’ll need to wait until Monday.

    I wonder what I should design next. I think I’d like to try some sort of GoPro mount.

    • 1
      If imitation is indeed flattery, RipTide and PSD Designs should feel complimented. ;-)
    • 2
      Pronounced open ess cad.
    • 3
      I’m gathering resources that address this issue.

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