X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=belt-slot-cut-jig.scad;h=6a5175be1624fb1345e33000ab6b600225d5c677;hp=6f894b596c765a05af1aff576b31ac89215a02a3;hb=f1aa8021753465a08e9e014499e051c6d78da40e;hpb=a4e2a19b89e425eab0a07ee89f8b38f21429924f

diff --git a/belt-slot-cut-jig.scad b/belt-slot-cut-jig.scad
index 6f894b5..6a5175b 100644
--- a/belt-slot-cut-jig.scad
+++ b/belt-slot-cut-jig.scad
@@ -25,7 +25,11 @@ punch_travel = 8;
 
 main_slop = 0.5;
 
-jig_max_len = 130;
+jig_max_len = 160; // print diagonally
+//jig_max_len = 30;
+
+registrationgroove_width = 0.8;
+registrationgroove_depth = 1.2;
 
 // from careful measurement
 
@@ -65,7 +69,8 @@ jig_main_zsz = holder_block_zsz + punch_travel;
 
 jig_ends_extra = 2;
 
-jig_iters = (jig_max_len - jig_ends_extra) / jig_interval;
+//jig_iters = (jig_max_len - jig_ends_extra) / jig_interval;
+jig_iters=2;
 echo(jig_iters);
 
 // objects
@@ -116,6 +121,17 @@ module PunchHolder(cutouts=true){
   }
 }
 
+module RegistrationGroove(l){
+  // runs along the +ve X axis for length l but at correct z pos
+  translate([0, 0, jig_main_zsz + 0.1]) {
+    rotate([90,0,90])
+      linear_extrude(height=l)
+      polygon([[-registrationgroove_width/2, 0],
+	       [ +registrationgroove_width/2, 0],
+	       [ 0, -registrationgroove_depth ]]);
+  }
+}
+
 module OneJig(){
   difference(){
     translate([-(jig_interval/2 + 1),
@@ -130,6 +146,12 @@ module OneJig(){
     }
     translate([-100, -strap_width/2, -10])
       cube([200, strap_width, 10]);
+   translate([-100,0,0])
+     RegistrationGroove(200);
+   for (xfrac=[-1/4,0,+1/4])
+     translate([jig_interval * xfrac, -100, 0])
+       rotate([0,0,90])
+       RegistrationGroove(200);
   }
 }
 
@@ -140,6 +162,15 @@ module Jig(){
   }
 }
 
+module JigT(){ ////toplevel
+  rotate([180,0,0])
+    Jig();
+}
+
+module PunchHolderT(){ ////toplevel
+  PunchHolder(true);
+}
+
 module Demo(){
   %PunchHolder();
   Jig();
@@ -150,4 +181,6 @@ module Demo(){
 //PunchHolder(false);
 //OneJig();
 //Jig();
-Demo();
+//Demo();
+//JigT();
+//PunchHolderT();