Trackball/hardware/config.scad

/*
 * Copyright (c) 2022 - 2023 Thomas Buck (thomas@xythobuz.de)
 *                           Philipp Schönberger (mail@phschoen.de)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * See <http://www.gnu.org/licenses/>.
 */


// https://www.thingiverse.com/thing:421524
use <external/cherry_mx.scad>;
include <mx_switch.scad>;

// #######################
// #### Configuration ####
// #######################
$fn = 100;//42;
$c = 0.1;  // clearence of 3d printer
$e = 0.01; // smales neglegtable distance

pico_angle = 55;
pico_off = -60;


angle_sensor=[0,0,145]; //  angle of the ball sensor
sensor_type = "mini"; // one of normal or mini

trackball_dia = 40.0;        // diameter of the trackball itself

bearing_type="dynamic_m6_vcn320"; // one off:
                                 //  dynamic_3d_vcn410
                                 //  dynamic_m6_vcn320
                                 //  static
bearing_static_dia = 3.0;        // diameter of the roller holder ball if type is "static"
bearing_h = 12;                  // total higth of the bearing holder

roller_ball_h = trackball_dia / 2 - 5;
bearing_count = 3;

wall = 3.0;

left_hand_version = false;
cut_bearing_holder = false;
draw_supports = false;
draw_ball_bearing_holder = true;
draw_trackball = true;
draw_switches = true;
draw_sensor = true;
draw_led= true;
draw_pico = true;
use_external_pico_model = true;
draw_keycap = true;
draw_panel = true;
draw_usb_c = true;

// ######################
// ### Implementation ###
// ######################

base_dia = 62;

grub_screw_dia = 2.8;
grub_channel_dia = 4.0;

bearing_ball_h_off = 0.4;
bearing_ball_hold_off = 0.5;

bearing_mount_grub_screw_l = 5;
bearing_mount_angle_off = 25;//90-5;
bearing_mount_dia = 10;
bearing_mount_flange = 1;

ball_h = 15; // todo

switch_test_w = 25;

sensor_pcb_mount_gap = 2.0;

//         rotate                                     translate
sw = [   // x  z_pre_T  z_post_T
        [ [-25,      0, -33 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// thumb
        [ [-25,    -19,   3 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// thumb
        [ [-25,      0, 146 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// middle
        [ [-25,     19, 106 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// ring
        // [ [-25,    -15, 146 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// middle
        // [ [-25,      0, 106 * (left_hand_version ? -1 : 1)], [0,-base_dia / 2 - 3,-14.5]],// ring
    ];

sw_mount_w = mx_co_w + 7;
sw_mount_r=4;

assembly_dist = 20;