From: Jan "Yenya" Kasprzak Date: Tue, 5 May 2015 18:04:49 +0000 (+0200) Subject: hc-sr04: different screw clips, bigger pcb X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=4f049e50df0edd611cb5d8cc9d287010ba6525ad;p=things.git hc-sr04: different screw clips, bigger pcb --- diff --git a/hc-sr04.scad b/hc-sr04.scad index dc5b789..cb06fa5 100644 --- a/hc-sr04.scad +++ b/hc-sr04.scad @@ -4,11 +4,11 @@ infty = 100; wall = 1.5; cyl_r = 8 + 0.5; -cyl_x = 27 / 2; +cyl_x = 26.2 / 2; cyl_h = 8; // above pcb, max 13.8; -pcb_x = 45 + 1.0; -pcb_y = 20 + 1.0; +pcb_x = 45.6 + 1.0; +pcb_y = 20.2 + 1.0; xtal_h = 5; pcb_supp = 3; // side support thickness pcb_h = 8; // 1.2 + space for connector etc @@ -20,10 +20,11 @@ conn_x = 10 + 0.5; conn_y = 15; cable_w = 7; -cable_h = 3.5; +cable_h = 4; -mount_h = 3; -screw_sp = 5; +screw_head = 7.5; +screw_d = 4; +screw_base = 2*wall; clip_r = 1; clip_h = 8; @@ -67,40 +68,39 @@ module case_body() { // connector translate([-conn_x/2-wall, pcb_y/2-wall, 0]) cube([conn_x+2*wall, conn_y+2*wall, pcb_h-pcb_thick+wall]); - } - for (x = [0, 180]) rotate([0, 0, x]) hull() { - // eps-wide cube - translate([pcb_x/2-eps, -4/2-wall, pcb_h + cyl_h + wall -eps]) - cube([eps, 4+2*wall, eps]); - // bottom plate - translate([pcb_x/2+wall, -screw_sp/2-wall, 0]) - cube([screw_sp+wall, screw_sp+2*wall, wall]); + // screw mounts + for (x = [1, -1]) scale([x, 1, 1]) + translate([pcb_x/2+wall, -screw_head/2-wall, 0]) + cube([screw_head, screw_head+2*wall, screw_base]); } } -rotate([180, 0, 0]) // rotate it for easier print -difference() { - case_body(); +module case() { difference() { - sensor(); - // pcb clip - translate([-clip_h/2, -pcb_y/2, pcb_h-pcb_thick-clip_r/2]) - rotate([0, 90, 0]) - cylinder(r=clip_r, h = clip_h, $fn = 4); - } - // mount holes - for (x = [0, 180]) rotate([0, 0, x]) { - translate([pcb_x/2+wall, -screw_sp/2, wall]) - cube([screw_sp +wall+eps, screw_sp, pcb_h + cyl_h + eps]); - translate([pcb_x/2+1+wall, -3/2, -eps]) - cube([3, 3, wall + 2*eps]); + case_body(); + difference() { + sensor(); + // pcb clip + translate([-clip_h/2, -pcb_y/2, pcb_h-pcb_thick-clip_r/2]) + rotate([0, 90, 0]) + cylinder(r=clip_r, h = clip_h, $fn = 4); + } + // mount holes + for (x = [-1, 1]) scale([x, 1, 1]) { + translate([pcb_x/2+wall, -screw_head/2, screw_base]) + cube([screw_head+eps, screw_head, infty]); + // screw hole + translate([pcb_x/2+wall+screw_head/2-screw_d/2, -screw_d/2, -eps]) + cube([screw_d, screw_d, infty]); + } + // text + translate([0, 3.5, pcb_h + cyl_h + eps]) + rotate([0, 0, 90]) + linear_extrude(height=wall) + text("CVT FI", font="DejaVu Sans:style=Bold", size=5, + halign="center", valign="center"); } - // text - translate([0, 3.5, pcb_h + cyl_h + eps]) - rotate([0, 0, 90]) - linear_extrude(height=wall) - text("CVT FI", font="DejaVu Sans:style=Bold", size=5, - halign="center", valign="center"); - } +// rotate([180, 0, 0]) // rotate it for easier print + case();