X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=3d-printables%2Fcaster-standoff.scad;h=fbf81cc0415d75d85539f6d16898f33782db4460;hb=aa19128c3fb1d542bf87ee0b04245b4fa94b471e;hp=994417ab696851c023f92403022a38d33259d2b4;hpb=ea0327710707bb772d02908b2e6df824e3417e02;p=challenge-bot diff --git a/3d-printables/caster-standoff.scad b/3d-printables/caster-standoff.scad index 994417a..fbf81cc 100644 --- a/3d-printables/caster-standoff.scad +++ b/3d-printables/caster-standoff.scad @@ -8,19 +8,22 @@ $fn = 60; /* measured with calipers */ -ball_diameter = 12.7 + 0.75; // extra bit added for printing imprecision +ball_diameter = 12.7 + 0.80; // extra bit added for printing imprecision ball_radius = ball_diameter / 2; +standoff_height = 65; // kyle eyeballed + wall_thickness = 1; holder_floor = 3; holder_arms_length = 10; -holder_height = holder_floor + holder_arms_length + (25 / 32) * ball_diameter; +holder_height = + holder_floor + holder_arms_length + (11 / 16) * ball_diameter; holder_radius = ball_radius + wall_thickness; holder_diameter = holder_radius * 2; standoff_radius = holder_radius; // 0.580 / 2 inches from spec sheet -standoff_height = 48; // eyeballed +standoff_lower_portion_height = standoff_height - holder_height; // eyeballed caster flange height, (0.580/5) inches, times 2 to be stronger caster_flange_height = 5; @@ -67,14 +70,13 @@ module ball_holder(){ center = true);}}} module caster_standoff(){ - cylinder(h = standoff_height, + cylinder(h = standoff_lower_portion_height, r = standoff_radius); deck_flange(); for(ii = [0:3]){ rotate([0, 0, 45 + 90 * ii]) deck_flange_reinforcement();} - translate([0, 0, standoff_height]){ + translate([0, 0, standoff_lower_portion_height]){ ball_holder();}} -//caster_standoff(); -ball_holder(); +caster_standoff();