osstest-arm-psu-bracket: wip

[reprap-play.git] / osstest-arm-hub-bracket.scad

diff --git a/osstest-arm-hub-bracket.scad b/osstest-arm-hub-bracket.scad
new file mode 100644 (file)
index 0000000..6b21eb3
--- /dev/null
+++ b/osstest-arm-hub-bracket.scad
@@ -0,0 +1,36 @@
+// -*- C -*-
+
+len = 80;
+basethick = 4;
+sidewall = 5;
+width = 40;
+
+strapthick = 4;
+strapwidth = 5;
+
+strapbotgap = 1;
+strapsidegap = 4;
+overstrap = 4;
+
+wallheight = strapbotgap + strapthick + overstrap;
+
+availlen = (len - strapsidegap);
+numstraps = floor(availlen / (strapwidth + strapsidegap));
+strapstride = availlen / numstraps;
+echo(numstraps, strapstride);
+
+module Bracket(){
+  difference(){
+    cube([len, width, basethick+wallheight]);
+    translate([-1, sidewall, basethick])
+      cube([len+2, width-sidewall*2, wallheight+1]);
+    for (i=[0:numstraps-1]) {
+      translate([ (0.5+i)*strapstride + strapsidegap/2,
+                 width/2,
+                 basethick + strapbotgap + strapthick/2 ])
+       cube([strapwidth, width*2, strapthick], center=true);
+    }
+  }
+}
+
+Bracket();