X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=3d-printables%2Fcaster-standoff.scad;h=328bc8b7f47987ce09043a2590fa1218fb377adf;hb=refs%2Fheads%2Fdevelop%2Fj;hp=236de0a2cc6eac755077c3ce361694f5ac855459;hpb=0d3ed0b89e201569a83e8806d0c7a3f44a311819;p=challenge-bot diff --git a/3d-printables/caster-standoff.scad b/3d-printables/caster-standoff.scad index 236de0a..328bc8b 100644 --- a/3d-printables/caster-standoff.scad +++ b/3d-printables/caster-standoff.scad @@ -4,41 +4,12 @@ // https://gitorious.org/ozzloy/challenge-bot // https://github.com/waynegramlich/challenge-bot +include use // use 10 ish for development, 60 or so for printing $fn = 60; -/* measured with calipers */ -ball_diameter = 12.7 + 0.80; // extra bit added for printing imprecision -ball_radius = ball_diameter / 2; - -standoff_height = 60; // kyle eyeballed - -gap = 4; -wall_thickness = 1; -holder_floor = 3; -holder_arms_length = 20; -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_lower_portion_height = standoff_height - holder_height; - -// eyeballed caster flange height, (0.580/5) inches, times 2 to be stronger -caster_flange_height = 5; -caster_flange_width = 20.32; // 0.800 inches -caster_flange_screw_radius = 2.286 / 2; // 0.090 inches -caster_flange_screw_length = 8; // eyeballed - -deck_pitch = 25.4; // measured center to center on grid on pegboard -deck_flange_height = 2.9464; -deck_flange_screw_radius = 3.556 / 2; // For #6 machine screws -deck_flange_radius = (deck_pitch) / 2 + deck_flange_screw_radius + 3; - module deck_flange(){ deck_pitch_diagonal = sqrt(2 * pow(deck_pitch, 2)); difference(){