crewpunch_slop = 0.3;
holder_min_wall = 2;
-holder_attach_near_wall = 3;
+holder_attach_near_wall = 5;
holder_attach_xsz = 5;
holder_ctie_width = 4.0 + 0.5;
-holder_ctie_thick = 2.0 + 0.5;
+holder_ctie_thick = 3.0 + 0.5;
holder_attach_walls = 3;
holder_attach_roof = 2.5;
jig_interval = 25;
-strap_width = 25;
+strap_width = 26.75 + 0.7;
strap_thick = 3;
edgewall_width = 3;
registrationgroove_width = 0.8;
registrationgroove_depth = 1.2;
+registrationprotrusion_poke = 3;
+registrationprotrusion_slope = 0.75;
+
jig_overlap = 1;
// from careful measurement
[ 10, [1.6, 6.5], [2.1, 12.8] ],
[ 12, [1.8, 6.6], [2.3, 12.7] ],
[ 14, [2.1, 6.8], [2.6, 13.0] ],
- [ 16, [2.4, 6.9], [2.7, 13.2] ]];
+ [ 16, [2.4, 6.9], [2.7, 13.2] ],
+ [ 18, [2.5, 7.0], [2.9, 13.3] ],
+ [ 22, [3.1, 7.1], [3.2, 13.4] ],
+ [ 26, [3.3, 7.2], [3.5, 13.6] ],
+ ];
crewpunch_shaft_max_y = 7.5;
crewpunch_systematic_size_error = +0.36;
-crewpunch_min_y = 4.7 - crewpunch_systematic_size_error;
-
crewpunch_smallest_shape = crewpunch_shape[0];
crewpunch_biggest_shape = crewpunch_shape[len(crewpunch_shape)-1];
+crewpunch_skew_angle = 3.5; //degrees
+crewpunch_skew_yoff = +1.1; //mm
+
// computed
+punch_dx = 0.5 * (-crewpunch_biggest_shape[2][0]
+ +crewpunch_biggest_shape[2][1]);
+punch_dy = 0.5 * (+crewpunch_biggest_shape[1][1]
+ -crewpunch_biggest_shape[1][0]) + crewpunch_skew_yoff;
+
attach_ysz = holder_attach_walls*2 + holder_ctie_width;
-holder_front_all = crewpunch_shaft_max_y - crewpunch_biggest_shape[1][1]
- + attach_ysz;
holder_block_zsz = crewpunch_biggest_shape[0] - crewpunch_smallest_shape[0];
holder_xsz = crewpunch_biggest_shape[2][0] + crewpunch_biggest_shape[2][1] +
holder_min_wall*2;
-crewpunch_biggest_y =
- crewpunch_biggest_shape[1][0] + crewpunch_biggest_shape[1][1];
-holder_ysz = crewpunch_biggest_y + holder_min_wall + holder_front_all;
-attach_offset = 0.5 * (holder_front_all - holder_attach_near_wall);
+holder_skewangle_yextra = holder_xsz/2 * sin(abs(crewpunch_skew_angle));
+
+holder_max_y = punch_dy + crewpunch_biggest_shape[1][0] + holder_min_wall
+ + crewpunch_systematic_size_error + holder_skewangle_yextra;
+
+holder_attach_max_y = punch_dy
+ - max(crewpunch_biggest_shape[1][1], crewpunch_shaft_max_y)
+ - crewpunch_systematic_size_error - holder_skewangle_yextra;
+
+holder_block_min_y = punch_dy
+ - crewpunch_biggest_shape[1][1] - holder_attach_near_wall +
+ - crewpunch_systematic_size_error - holder_skewangle_yextra;
+
+holder_all_min_y = holder_attach_max_y - attach_ysz;
+
+jig_max_y = max(holder_max_y + main_slop, strap_width/2) + edgewall_width;
+jig_min_y = min(holder_all_min_y - main_slop, -strap_width/2) - edgewall_width;
jig_main_zsz = holder_block_zsz + punch_travel;
mirror([xind?1:0,0,0]) mirror([0,yind?0:1,0]){
translate([-0.1,-0.1,-0.1])
cube([0.1 + layer[2][xind] + ourslop,
- 0.1 + layer[1][yind] + ourslop,
+ 0.1 + layer[1][1-yind] + ourslop,
0.2]);
}
}
}
module PunchHolder(cutouts=true){
- translate([-holder_xsz/2,
- -holder_ysz + holder_min_wall + crewpunch_biggest_y/2,
- 0]){
difference(){
- translate([0,attach_offset,0])
- cube([holder_xsz, holder_ysz - attach_offset, holder_block_zsz]);
+ translate([-holder_xsz/2, holder_block_min_y, 0])
+ cube([holder_xsz,
+ holder_max_y - holder_block_min_y,
+ holder_block_zsz]);
if (cutouts)
- translate([crewpunch_biggest_shape[2][1] + holder_min_wall,
- crewpunch_biggest_shape[1][0] + holder_front_all,
+ rotate([0,0,-crewpunch_skew_angle])
+ translate([punch_dx,
+ punch_dy,
-crewpunch_smallest_shape[0]])
CrewPunch();
}
difference(){
- translate([holder_xsz/2 - holder_attach_xsz/2, 0, 0])
+ translate([-holder_attach_xsz/2, holder_all_min_y, 0])
cube([holder_attach_xsz,
attach_ysz,
holder_block_zsz + punch_travel
holder_block_zsz + punch_travel])
cube([60, holder_ctie_width, holder_ctie_thick]);
}
- }
}
module RegistrationGroove(l){
module OneJig(){
difference(){
translate([-(jig_interval/2 + jig_overlap),
- -(strap_width/2 + edgewall_width) - attach_offset,
+ jig_min_y,
-strap_thick])
cube([jig_interval + 2,
- strap_width + edgewall_width*2 + attach_offset,
+ jig_max_y - jig_min_y,
jig_main_zsz + strap_thick]);
minkowski(){
cube([main_slop*2, main_slop*2, 50], center=true);
}
}
+module RegistrationProtrusion(){
+ // points towards the positive x axis
+ xsz = registrationprotrusion_poke;
+ ysz = registrationprotrusion_poke;
+ diag_sz = xsz * sqrt(2);
+ zsz = diag_sz / registrationprotrusion_slope;
+ hull(){
+ translate([0, 0, 0.1]){
+ linear_extrude(height=0.1)
+ polygon([[ 0, -ysz ],
+ [ xsz, 0 ],
+ [ 0, ysz ]]);
+ translate([-0.1, 0, zsz ])
+ rotate([0,0,45])
+ cube(0.1);
+ }
+ }
+}
+
module Jig(){
+ for(end=[0,1]){
+ for(yfrac=[-1/2, 0, 1/2]){
+ translate([ end
+ ? jig_interval * (jig_iters - 0.5)
+ : -jig_interval/2,
+ yfrac * strap_width,
+ 0])
+ rotate([0,0, end ? 0 : 180])
+ translate([ jig_overlap, 0, 0 ])
+ RegistrationProtrusion();
+ }
+ }
for (i=[0:jig_iters-1]) {
translate([jig_interval * i, 0, 0])
OneJig();
}
module JigT(){ ////toplevel
- rotate([180,0,0])
+ rotate([0,0,-45])
+ translate([0,0,jig_main_zsz])
+ rotate([180,0,0])
Jig();
}
PunchHolder(true);
}
-module Demo(){
+module Demo(){ ////toplevel
%PunchHolder();
Jig();
}
+module Kit(){ ////toplevel
+ JigT();
+ rotate([0,0,-45]){
+ translate([(jig_iters-1)*jig_interval/2,
+ jig_min_y - holder_max_y - 5,
+ 0])
+ PunchHolder();
+ }
+}
+
//CrewPunch();
//PunchHolder();
//PunchHolder(false);
//Jig();
//Demo();
//JigT();
+//RegistrationProtrusion();
//PunchHolderT();
+//Kit();
~ianmdlvl / reprap-play.git / blobdiff