tube-crossdrill-jig: slot plugs in right place

[reprap-play.git] / tube-crossdrill-jig.scad

diff --git a/tube-crossdrill-jig.scad b/tube-crossdrill-jig.scad
index 55d8183650b4effe740fd0772ec745cd19dd7fa6..8b47a96586b6d377c65358e5f1cf531a466ab359 100644 (file)
--- a/tube-crossdrill-jig.scad
+++ b/tube-crossdrill-jig.scad
@@ -1,10 +1,15 @@
 // -*- C -*-
 
+//$fs=0.1;
+//$fa=3;
+$fs=0.2;
+$fa=6;
+
 rearwallthick = 3;
 basethick = 3;
 mainframeendthick = 2.5;
 
-tubedia=16;
+tubedia = 16 + 0.8;
 tubetubethick=2;
 tubetubetopslop=1;
 
@@ -13,11 +18,14 @@ boltholeslotshorter = 6;
 mainframeholedia = 5 + 0.5;
 
 // "slot" refers to the things in the base of the drill press stand
-backslotedgespace = 71;
+backslotedgespace = 55;
 slotwidth = 11.5;
 backslotmid2screwhole = 17;
 slotplugheight = 5.5;
-slotplugdepth = 10;
+slotplugshorterlen = 8;
+slotpluglongerlen = 18;
+
+slotslope = 11.0 / 18.5;
 
 // "keepslot" refers to the screws in the wooden jig block
 keepslotstartz = 20;
@@ -29,6 +37,7 @@ mainframeextraside = 15;
 mainframeextrafront = 25;
 
 rearwallstrengthwidth = 10;
+keepslotclear = 10;
 
 // computed values
 
@@ -41,6 +50,14 @@ mainframemaxx = mainframeholex + mainframeextraside;
 mainframeminy = mainframeholey - mainframeextrafront;
 mainframemaxz = keepslotstartz + keepslotlen;
 
+slotslopediag = sqrt(1 + slotslope*slotslope);
+slotwidthx = slotwidth * slotslopediag;
+
+slotxperlen = slotslope / slotslopediag;
+slotyperlen =         1 / slotslopediag;
+
+echo(slotslope, slotslopediag, slotwidthx);
+
 module MainFrame(){
   for (m=[0,1]) {
     mirror([m,0,0]) {
@@ -49,7 +66,7 @@ module MainFrame(){
       translate([-1, -rearwallthick, 0])
        cube([mainframemaxx+1, rearwallthick, mainframemaxz]);
 
-      for (x=[keepslotx - 10, mainframemaxx]) {
+      for (x=[keepslotx - keepslotclear, mainframemaxx - 0.5]) {
        translate([x,0,0])
          rotate([90,0,-90])
          linear_extrude(height=mainframeendthick)
@@ -62,14 +79,15 @@ module MainFrame(){
        mirror([0,0,1])
        linear_extrude(height=slotplugheight+1)
        polygon([[0,0],
-                [slotwidth * sqrt(2), 0],
-                [slotplugdepth / sqrt(2) + slotwidth * sqrt(2),
-                 -slotplugdepth],
-                [slotplugdepth / sqrt(2), -slotplugdepth]]);
+                [slotwidthx, 0],
+                [slotwidthx + slotplugshorterlen * slotxperlen,
+                 -slotplugshorterlen * slotyperlen],
+                [slotpluglongerlen * slotxperlen,
+                 -slotpluglongerlen * slotyperlen]]);
       translate([-1,
                 -rearwallthick - boltholeslotshorter + 0.2,
                 tubedia + tubetubetopslop + tubetubethick + 4])
-       cube([keepslotx - 10 + 1,
+       cube([keepslotx - keepslotclear + 1,
              boltholeslotshorter + 0.5,
              rearwallstrengthwidth]);
     }
@@ -116,4 +134,5 @@ module Jig(){
 //MainFrame();
 //TubeThing(0, tubedia);
 
-Jig();
+rotate([-90,0,0])
+  Jig();