X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=tube-crossdrill-jig.scad;h=843a2a697123c8e10d87a0f882991cb80da2d8c2;hp=4e80849746a5c6e9de906d3de402d705886e823e;hb=e5937a67002892f5b4e1925ae0b379158bf02946;hpb=37df6d8e6a53d70c56ff4be5aee2df915c8f073b

diff --git a/tube-crossdrill-jig.scad b/tube-crossdrill-jig.scad
index 4e80849..843a2a6 100644
--- a/tube-crossdrill-jig.scad
+++ b/tube-crossdrill-jig.scad
@@ -15,25 +15,26 @@ tubetubetopslop=1;
 
 boltholedia = 6.5 + 0.5;
 boltholeslotshorter = 6;
-mainframeholedia = 5 + 0.5;
+mainframeholedia = 5 + 1.0;
 
 // "slot" refers to the things in the base of the drill press stand
-backslotedgespace = 55;
-slotwidth = 11.5;
+backslotedgespace = 59;
+slotwidth = 11.5 - 0.5;
 backslotmid2screwhole = 17;
 slotplugheight = 5.5;
-slotplugshorterlen = 8;
-slotpluglongerlen = 18;
+slotplugshorterlen =10;
+slotpluglongerlen = 20;
 
-slotslope = 11.0 / 18.5;
+//slotslope = 11.0 / 18.5;
+slotslope = 1 / tan(51);
 
 // "keepslot" refers to the screws in the wooden jig block
 keepslotstartz = 20;
-keepslotlen = 25;
+keepslotlen = 18;
 keepslotx = backslotedgespace / 2;
 keepslotwidth = 4;
 
-mainframeextraside = 15;
+mainframeextraside = 12;
 mainframeextrafront = 15;
 
 rearwallstrengthwidth = 10;
@@ -47,10 +48,11 @@ slotwidthx = slotwidth * slotslopediag;
 slotxperlen = slotslope / slotslopediag;
 slotyperlen =         1 / slotslopediag;
 
-mainframeholex = backslotedgespace/2 + slotwidth/sqrt(2) +
-  backslotmid2screwhole / sqrt(2);
+mainframeholex = backslotedgespace/2 + slotpluglongerlen * slotxperlen
+  + 0.5 * slotwidth * slotyperlen;
 
-mainframeholey = -backslotmid2screwhole / sqrt(2);
+mainframeholey = -slotpluglongerlen * slotyperlen
+  + 0.5 * slotwidth * slotxperlen;
 
 mainframemaxx = mainframeholex + mainframeextraside;
 mainframeminy = mainframeholey - mainframeextrafront;