X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=adafruit-powerboost-common.scad;h=14a9b975cb826a5d4e698bd2e852cddda1cee598;hb=dfb939f64d208a5d0440273a7f9fd5867c2c30c1;hp=d9dcd8939bb083e6137ff9eea802a425185c9d94;hpb=7ff841b01f503343755a204b451770dcd97d56a2;p=reprap-play.git diff --git a/adafruit-powerboost-common.scad b/adafruit-powerboost-common.scad index d9dcd89..14a9b97 100644 --- a/adafruit-powerboost-common.scad +++ b/adafruit-powerboost-common.scad @@ -1,4 +1,237 @@ // -*- C -*- include +include +psu_sz = psu_sz_nom + [ 0.11, 0.44 ] + [ 0.25, 0.25 ]; + +psu_hole_pos = [ 2.05, // from back edge of psu_sz[0] + 0.55 * 0.5 * 25.4, // from centreline + ]; + +psu_th = 1.70 + 0.25; +psu_th_for_clamp = 1.50; + +psu_hole_dia = 2.5 - 0.3; +psu_connector_z = 2.9 + 0.1; +psu_connector_z_overlap = 0.15; +psu_connector_depth = 6.25; +psu_connector_w = 8.0 + 0.5; +psu_usb_protr = 0.6; + +psu_clamp_th = 4.0 + 0.75; +psu_clamp_w = 8.0; +psu_clamp_gap = 0.4; + +psu_board_clamp_ovlp = 4.5; +psu_board_nutbox = nutbox_data_M3; + +psu_board_gap = 0.5; +psu_board_support_wall = 2; +psu_board_support_ovlp = 4.5; +psu_board_support_ovlp_ceil = 2; +psu_board_support_z = 2; + +psu_baffle_gap = 1.0 + 0.5; + +psu_y = +psu_sz[1]/2 + psu_usb_protr; + +psu_usba_v_apart = 7.0; +psu_usba_v_from_edge = 4.86; +psu_usba_v_space_below = 1.5; +psu_usba_v_space_w = 1.7; +psu_usba_v_space_l = 3.0; + +// ----- calculated ----- + +psu_z = NutBox_h_base(psu_board_nutbox); +psu_z_down = psu_z + 0.1; +psu_fix_sz = NutBox_outer_size(psu_board_nutbox); +psu_board_nutbox_y = psu_sz[1]/2 + psu_board_nutbox[0]/2; + +module PsuBoardRepresentation(){ + linear_extrude(height= psu_th) + square(center=true, [psu_sz[0],psu_sz[1]]); +} + +module PsuRepresentation(){ + PsuBoardRepresentation(); + translate([0, -psu_sz[1]/2, -psu_connector_z]) + linear_extrude(height= psu_connector_z + psu_connector_z_overlap) + rectfromto([ -psu_connector_w/2, -10 ], + [ +psu_connector_w/2, psu_connector_depth ]); +} + +module AtPsuMountCorner(mx,my){ + mirror([mx,0,0]) + mirror([0,my,0]) + translate(-0.5 * [psu_sz[0], psu_sz[1], 0] + -1 * [0,0, psu_z_down]) + children(); +} + +module PsuMountCornerExtrude(mx,my, plus_z=psu_board_support_z){ + AtPsuMountCorner(mx,my){ + linear_extrude(height= psu_z_down + plus_z, convexity=10) { + children(); + } + } +} + +module PsuUsbAVSpacePlan(){ + for (x= [-1,+1] * psu_usba_v_apart/2) { + translate([x, -psu_usba_v_from_edge ]) { + hull(){ + for (y= [-1,+1] * (psu_usba_v_space_l - psu_usba_v_space_w)) { + translate([0,y]) + circle(r= psu_usba_v_space_w); + } + } + } + } +} + +module PsuMountPositiveMain(){ + for (mx=[0,1]) { + for (my=[0,1]) { + PsuMountCornerExtrude(mx,my){ + rectfromto(-[1,1]*psu_board_support_wall, + +[1,1]*psu_board_support_ovlp); + } + } + // mount above at plug end + PsuMountCornerExtrude(mx,0, psu_th + psu_board_support_wall){ + rectfromto(-[1,1]*psu_board_support_wall, + [psu_board_support_ovlp, + psu_board_support_ovlp_ceil]); + } + } + translate([0,0, -psu_z_down]) + linear_extrude(psu_z_down - psu_baffle_gap, convexity=10) + PsuLedBafflePlan(); +} + +module PsuMountNegative(){ + axis = [0, -psu_sz[1]/2, psu_th]; + PsuRepresentation(); + translate(axis) + rotate([atan(2 * psu_board_support_z / psu_sz[1]), + 0,0]) + translate(-axis) + PsuBoardRepresentation(); +} + +module PsuMountPositive(){ + difference(){ + intersection(){ + PsuMountPositiveMain(); + linextr_y_xz(-psu_y, psu_sz[1]*2) square(100, center=true); + } + PsuMountNegative(); + intersection(){ + hull(){ + PsuBoardRepresentation(); + translate([0,0,5]) PsuBoardRepresentation(); + } + translate([-20,0,-20]) cube(40); + } + } + for (mx=[0,1]) { + PsuMountCornerExtrude(mx,1){ + translate([psu_sz[0]/2 - psu_hole_pos[1], + psu_hole_pos[0]] + + psu_board_gap * [1,1] ) + circle(r= psu_hole_dia/2); + } + } + difference(){ + translate([0, psu_board_nutbox_y, 0]) + rotate([0,0,180]) + NutBox(psu_board_nutbox, psu_z_down); + translate([0, psu_sz[1]/2, 0]) + linextr(-psu_usba_v_space_below, +10) + PsuUsbAVSpacePlan(); + } +} + +module PsuClamp(){ ////toplevel + rotate([180,0,0]) difference(){ + linear_extrude(height=psu_clamp_th + psu_th_for_clamp, convexity=5) { + difference(){ + hull(){ + circle(r = psu_fix_sz/2); + translate([ -psu_board_nutbox[0]/2, 0]) + square(center=true, [ psu_board_clamp_ovlp*2, psu_clamp_w ]); + } + circle(r = psu_board_nutbox[0]/2); + } + } + translate([0,0,-1]) linear_extrude(height=psu_th_for_clamp+1) { + translate([ -psu_board_nutbox[0]/2 + psu_clamp_gap, 0 ]) + mirror([1,0]) + translate([0,-20]) square(40); + } + linextr(-10,10) { + rotate(-90) + PsuUsbAVSpacePlan(); + } + } +} + +module PsuLedWindowsPlan(){ + difference(){ + PsuLedWindowsPlanCore(); + PsuLedBafflePlan(); + } +} + +module PsuMountDemo(ceil = 2.5) { ////toplevel + translate([0, psu_y, psu_z]) { + difference(){ + PsuMountPositive(); + linextr(-20, 0.1) + PsuLedWindowsPlan(); + } + %PsuMountNegative(); + + color("yellow") translate([0,0, -psu_z - ceil]) + linear_extrude(height=0.4, convexity=10) + PsuLedWindowsPlan(); + + color("blue") translate([0,0, -psu_z - ceil]) + linear_extrude(height=0.4, convexity=10) + PsuLedLegendsPlan(); + + translate([0, psu_board_nutbox_y, 10]) + rotate([180,0,0]) + rotate([0,0,-90]) + PsuClamp(); + } +} + +module PsuMountTest(ceil = 2.5) { ////toplevel + $fs = 0.1; + $fa = 3; + difference(){ + union(){ + translate([0, psu_y, psu_z]) + PsuMountPositive(); + difference(){ + linextr_x_yz(-(psu_sz[0]/2 + 5), + +(psu_sz[0]/2 + 5)){ + difference(){ + rectfromto([0, -ceil], [psu_sz[1] + 10, psu_z + 10]); + rectfromto([ceil,0], 400*[1,1]); + } + } + translate([0, psu_y, psu_z]) { + PsuMountNegative(); + } + } + } + translate([0, psu_y, psu_z]) { + linextr(-10, 0.1) + PsuLedWindowsPlan(); + } + } +}