Comments on: Notching a Circle in Inkscape http://www.neufeld.newton.ks.us/electronics/?p=1489 Sun, 08 Dec 2024 17:19:24 -0600 hourly 1 http://wordpress.org/?v=3.1.3 By: Keith Neufeld http://www.neufeld.newton.ks.us/electronics/?p=1489&cpage=1#comment-29523 Keith Neufeld Sat, 03 Mar 2012 17:12:21 +0000 http://www.neufeld.newton.ks.us/electronics/?p=1489#comment-29523 Nudel, I haven't gone back and forth between Inkscape and OpenSCAD yet and wasn't thinking about OpenSCAD's DXF export. That's probably simpler than adding the <a href="http://tim.cexx.org/?p=590" rel="nofollow">Better Better DXF Output for Inkscape</a>, and keeps all the source in one place -- thanks! I will increase $fn on the circle, though, for lazzing. Nudel, I haven’t gone back and forth between Inkscape and OpenSCAD yet and wasn’t thinking about OpenSCAD’s DXF export. That’s probably simpler than adding the Better Better DXF Output for Inkscape, and keeps all the source in one place — thanks! I will increase $fn on the circle, though, for lazzing.

]]> By: Nudel http://www.neufeld.newton.ks.us/electronics/?p=1489&cpage=1#comment-29522 Nudel Sat, 03 Mar 2012 16:46:13 +0000 http://www.neufeld.newton.ks.us/electronics/?p=1489#comment-29522 <a href="http://www2.neufeld.newton.ks.us/images/electronics/2012/03/03/Nudel-OpenSCAD.png" rel="nofollow"><img src="http://www2.neufeld.newton.ks.us/images/electronics/2012/03/03/Nudel-OpenSCAD_mid.png" alt="OpenSCAD notched circle" /></a> Here's a suggestion done directly in OpenSCAD, if the commentary area accepts code. <code>r = 10; s = 1; n = 16; //linear_extrude(height=10) difference(){ circle(r=r); for(i=[1:n]) rotate([0,0,360/n*i]) translate([r,0,0]) rotate([0,0,45]) square([s,s],center=true); }</code> Uncomment linear_extrude to make the part for subtraction in OpenSCAD. This of course assumes the dxf export from OpenSCAD is compatible with the laser-cutter. Inkscape does read the dxf fine though. OpenSCAD notched circle

Here’s a suggestion done directly in OpenSCAD, if the commentary area accepts code.

r = 10; s = 1; n = 16;
//linear_extrude(height=10)
difference(){
circle(r=r);
for(i=[1:n]) rotate([0,0,360/n*i]) translate([r,0,0]) rotate([0,0,45]) square([s,s],center=true);
}

Uncomment linear_extrude to make the part for subtraction in OpenSCAD. This of course assumes the dxf export from OpenSCAD is compatible with the laser-cutter. Inkscape does read the dxf fine though.

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