X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=trackpump-mutlihead-clip.scad;h=4d7ec02f3ca3e4da8c776231516e6b4e2f9f3aea;hp=18b6133bc7588116a0ee4109a63d5086865c3149;hb=5e8f3811785a3db22c3a79a289807646c4d7b5fd;hpb=811465501cb05f4fe588664dc087a5c8c5c9e2cb diff --git a/trackpump-mutlihead-clip.scad b/trackpump-mutlihead-clip.scad index 18b6133..4d7ec02 100644 --- a/trackpump-mutlihead-clip.scad +++ b/trackpump-mutlihead-clip.scad @@ -4,45 +4,133 @@ pump_main_dia = 38; pump_side_width = 5; pump_side_thick = 5; pump_shaft_dia = 14; +baseplate = 4; -// need reconfirm: +pump_protr_flat = 3; +pump_protr_slope = 0.9; + +hose_inner_dia = 20; +hose_aperture = 11; +hose_side_width = 5; +hose_base_offset = 30; + +hose_side_thick = 5; + +pump_protr_protr = 3; pump_side_height = 20; // calculated +pump_protr_slheight = pump_protr_protr / pump_protr_slope; pump_side_outer_rad = pump_side_width + pump_main_dia/2; +$fa=5; + module PumpSidePlan() { + xm = baseplate + pump_main_dia/2; or = pump_side_outer_rad; difference(){ union(){ - translate([-or, 0]) circle(r=or); - translate([-or, -or]) square([or, or*2]); + intersection(){ + translate([-xm, 0]) circle(r=or); + translate([-(xm+or), -or]) square([xm+or, or*2]); + } + translate([-xm, -or]) square([xm, or*2]); } - translate([-or, 0]) circle(r=pump_main_dia/2); - translate([-or*2, 0]) - square(center=true, [pump_side_width*3, pump_shaft_dia]); + translate([-xm-or, 0]) + square(center=true, [pump_side_width*4, pump_shaft_dia]); } } module PumpSideElevation(){ x3 = 0; - x2 = x3 - pump_side_width; + x2 = x3 - baseplate; x1 = x2 - pump_main_dia; x0 = x1 - pump_side_width; + x2a = x2 - pump_protr_protr; + z0 = 0; z1 = z0 - pump_side_thick; z2 = z1 - pump_side_height; + z2a = z2 - pump_protr_slheight; + z2b = z2a - pump_protr_flat; arcx = x2-x1; arcy = z1-z2; translate([x0,z1]) square([x1-x0, z0-z1]); + difference(){ translate([x1,z2]) square([x3-x1, z0-z2]); translate([x1,z2]) scale([1,arcy/arcx]) circle(r=arcx); } + + translate([x2,z2a]) square([x3-x2, z0-z2a]); + + hull(){ + translate([x2,z2a]) square([x3-x2, z2-z2a]); + translate([x2a,z2b]) square([x3-x2a, z2a-z2b]); + } +} + +module PumpSide(){ + difference(){ + intersection(){ + translate([0,100,0]) + rotate([90,0,0]) + linear_extrude(height=200) + PumpSideElevation(); + translate([0,0,-100]) + linear_extrude(height=200) + PumpSidePlan(); + } + translate([-(baseplate + pump_main_dia/2), 0, + -(pump_side_thick + pump_side_height)]) + cylinder(r=pump_main_dia/2, h=200); + } +} + +module HoseSidePlan(){ + ro = hose_inner_dia/2 + hose_side_width; + ri = (hose_inner_dia/2); + + apx = sqrt( ri*ri - (hose_aperture*hose_aperture)/4 ); + apsq = hose_base_offset + apx - hose_aperture/2; + echo(apx,apsq); + + difference(){ + hull(){ + translate([-1, -ro]) square([1, ro*2]); + translate([hose_base_offset, 0]) circle(r= ro); + } + translate([hose_base_offset, 0]) circle(r= hose_inner_dia/2); + translate([apsq, 0]) + rotate(-45) + square([50,50]); + } + + //%translate([hose_base_offset + apx, 0]) square([50,50]); + //%square(center=true, [100, hose_aperture]); +} + +module HoseSide(){ + mirror([0,0,1]) + linear_extrude(height=hose_side_thick) + HoseSidePlan(); +} + +module Clip(){ + PumpSide(); + HoseSide(); +} + +module ClipPrint(){ + rotate([180,0,0]) + Clip(); } //PumpSidePlan(); -PumpSideElevation(); +//PumpSide(); +//HoseSide(); +//Clip(); +ClipPrint();