X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=3d-printables%2Fsonar-table-top-holder.scad;h=7834bc623237994e863ad6f38dbfcab29e3841c1;hb=25cd00a6b1d4f62e856346393972298f01dbabe3;hp=9cb881de5609da37309af24bcb85dd60511fba9d;hpb=fa6c6440266670ea11fda3d8bb5a9d48553e00d2;p=challenge-bot diff --git a/3d-printables/sonar-table-top-holder.scad b/3d-printables/sonar-table-top-holder.scad index 9cb881d..7834bc6 100644 --- a/3d-printables/sonar-table-top-holder.scad +++ b/3d-printables/sonar-table-top-holder.scad @@ -1,76 +1,39 @@ +/* + Copyright (C) 2015 Daniel Watson + See the end of the file for license conditions. +*/ // challenge-bot // GNU AGPLv3 (or later at your option) -// project available at these locations: -// https://gitorious.org/ozzloy/challenge-bot -// https://github.com/waynegramlich/challenge-bot +// project available here: +// https://challenge-bot.com/ -$fn = 60; +/* + this holds an hc-sr04 sonar sensor to a 3/16 inch deck. + http://fritzing.org/projects/hc-sr04-project + it can hold the sonar sensor either facing down, or forwards. + when facing down, it can detect if it passes over the edge of a table. + when facing forwards, it can detect and follow something in front of it. + */ -// 3/16 inch in mm deck_depth = 4.7625; -// 1/4 inch in mm - a little to be a squeeze fit -deck_depth = 6.35 - 0.4; -sonar_plate_width = 20; -// sonar sensor measurements taken with calipers: -// 10.82 in between, 42.33 outside, 15.82 diameter -// measured diameter of 15.82 with calipers, -// but when printed ends up being too small -sonar_sensor_radius = 15.82 / 2 + 0.3; -sonar_sensor_height = 13.8; -between_sensor_centers = 15.82 + 10.82; -sonar_plate_length = 3 + between_sensor_centers + sonar_sensor_radius + 3; -sonar_holder_length = sonar_plate_length + 10; -sonar_holder_width = sonar_plate_width + 3; -sonar_holder_depth = 4; +$fn = 60; -deck_holder_length = 30; -deck_holder_width = sonar_holder_width; +include -module sensors(){ - translate([between_sensor_centers / 2, 0, 0]){ - cylinder(r = sonar_sensor_radius, h = sonar_sensor_height);} - translate([-between_sensor_centers / 2, 0, 0]){ - cylinder(r = sonar_sensor_radius, h = sonar_sensor_height);}} +sonar_holder(); -module sensor_holder(){ - difference(){ - cube([sonar_holder_length, sonar_holder_width, sonar_holder_depth]); - translate([sonar_holder_length / 2, sonar_holder_width / 2, -0.05]){ - sensors();}} - translate([sonar_holder_length, 0, 0]){ - cube([sonar_holder_depth + 0.3, deck_depth - 0.3, deck_depth - 0.3]); - translate([sonar_holder_depth + 0.3, 0, 0]){ - // subtract a little bit (0.3) to make it fit - cube([deck_depth - 0.3, sonar_holder_width, deck_depth - 0.3]);}}} +/* + This file is part of challenge-bot. -module deck_holder(){ - cube([deck_holder_length, sonar_holder_depth, sonar_holder_width]); - cube([sonar_holder_depth, - sonar_holder_depth * 2 + deck_depth, - sonar_holder_width]); - translate([0, sonar_holder_depth + deck_depth, 0]){ - cube([deck_holder_length, sonar_holder_depth, sonar_holder_width]);} - translate([sonar_holder_depth + deck_depth, 0, 0]){ - cube([sonar_holder_depth, - sonar_holder_depth * 2 + deck_depth, - sonar_holder_width]);}} + Challenge-bot is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. -module sonar_table_top_holder(){ - difference(){ - union(){ - cube([sonar_holder_length, sonar_holder_width, sonar_holder_depth]); - translate([sonar_holder_length, 0, 0]){ - deck_holder();}} - translate([between_sensor_centers / 2 + sonar_sensor_radius + 3, - sonar_holder_width / 2, - -1]){ - sensors();} - // cut out a bit of the circle to make it 3d printable, - // no severe overhang - translate([3 + sonar_sensor_radius, - sonar_holder_width - 3.025, - sonar_holder_depth / 2 - 0.025]){ - cube([10, 6.1, sonar_holder_depth + .1], center = true); - translate([between_sensor_centers, 0, 0]){ - cube([10, 6.1, sonar_holder_depth + .1], center = true);}}}} + GNU Affero Emacs is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. -sensor_holder(); + You should have received a copy of the GNU Affero General Public License + along with challenge-bot. If not, see . +*/