Blog: Bird photos
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content/blog/arduino-nikon-remote/dream1.webp
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content/blog/arduino-nikon-remote/index.fr.md
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content/blog/arduino-nikon-remote/index.fr.md
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title = "Timelapse et oiseaux de l'espace"
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date = 2025-02-06
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description = "Un déclencheur photo avec capteur de présence"
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insert_anchor_links = "left"
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[taxonomies]
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tags = ["Arduino", "électronique", "photo"]
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+++
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## Un rouge-gorge dans les étoiles
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Rouge-gorges, moineaux, merles et mésanges visitent toute la journée le jardin mais s'envolent à la vue d'hominidés.
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Comment donc, sans téléobjectif, les prendre en photo ?
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En fabriquant un déclencheur doté d'un capteur de distance infrarouge !
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[Davantage de photos en haute résolution sont disponibles ici.](/img/birds/)
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## Humble timelapse
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Il y a aussi un mode périodique, pour faire un timelapse.
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Dans la vidéo la luminosité varie parce que j'avais oublié de désactiver la balance automatique.
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<iframe title="Timelapse - trees and sky - 2020-10-31" width="560" height="315" src="https://flim.txmn.tk/videos/embed/3acae4de-2669-4b48-867d-41a980bfce9c" frameborder="0" allowfullscreen="" sandbox="allow-same-origin allow-scripts allow-popups allow-forms"></iframe>
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## Le déclencheur
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Mon appareil photo (Nikon D3000) possède un récepteur infrarouge, pour lequel je n'ai pas de télécommande.
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Heureusement quelqu'un a publié un code Arduino répliquant le signal de la télécommande: [_Nikon Remote Emulator_ by Gough Lui](https://goughlui.com/2013/12/06/teardown-and-project-clone-nikon-ml-l3-ir-remote-and-emulation/)
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Il suffit d'un microcontrôleur et d'une LED infrarouge (récupérée d'une vieille télécommande TV).
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Le détecteur d'oiseau est un capteur de distance infrarouge GP2D12, capable d'évaluer (très grossièrement) la distance sur 20 à 80cm.
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Il est perché sur un bras articulé à distance de l'appareil photo (pour pouvoir régler la focale et ne pas effrayer les oiseaux).
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Un interrupteur pour choisir le mode (capteur ou intervalle fixe), et un potentiomètre pour choisir la valeur (distance pour le mode capteur, durée pour le mode intervalle).
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Il faut aussi déclencher l'appareil toutes les quelques minutes pour l'empêcher de se mettre en veille (ce qui demanderait un rallumage manuel).
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Le boîtier est conçu pour une Arduino Micro mais un ATtiny402 suffirait largement.
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Le bras articulé se fixe sur le trépied de l'appareil photo.
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* [nikon_ir_trigger.ino](nikon_ir_trigger.ino) (programme Arduino)
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* [timelapser.scad](timelapser.scad) (modèle 3D [OpenSCAD](https://openscad.org/), pour impression 3D)
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* [pitch.scad](pitch.scad) (pas de vis et support de boulon)
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## Crédits
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Le montage avec le rouge-gorge utilise deux images dont je ne suis pas l'auteur :
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* _Adelie Penguin (Pygoscelis adeliae) group on iceberg, Antarctic Peninsula, Antarctica_, image partagée partout sur Internet sans attribution, dont je ne trouve pas la publication originale.
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* [Westerlund 2, photographed by the Hubble Space Telescope (heic1509a)](https://esahubble.org/images/heic1509a/)
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Images retouchées avec Gimp, optimisées avec YOGA Image Optimizer.
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Aucun animal n'a subi de violence pendant les séances photo.
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Les participants n'ont pas signé de droit à l'image mais ont été rémunérés en graines.
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content/blog/arduino-nikon-remote/nikon_ir_trigger.ino
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content/blog/arduino-nikon-remote/nikon_ir_trigger.ino
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#define PIN_TRIGGER 13 // IR LED
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#define PIN_SENSOR A0 // Distance sensor (GP2D12)
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#define PIN_POT A1 // Parameter potentiometer
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#define PIN_SWITCH 8 // Mode switch
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#define INTERVAL 1000
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#define N_MEASURE 4
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#define PREVENT_SLEEP_INTERVAL 270000
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char count;
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unsigned long prevent_sleep = 0;
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unsigned long last_shot = 0;
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void trigger() {
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// Nikon Remote Emulator by Gough Lui
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// https://goughlui.com/2013/12/06/teardown-and-project-clone-nikon-ml-l3-ir-remote-and-emulation/
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count = 0;
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while(count < 3) {
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tone(PIN_TRIGGER, 38000);
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delay(2);
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noTone(PIN_TRIGGER);
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delay(28);
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tone(PIN_TRIGGER, 38000);
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delayMicroseconds(200);
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noTone(PIN_TRIGGER);
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delayMicroseconds(1500);
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tone(PIN_TRIGGER, 38000);
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delayMicroseconds(200);
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noTone(PIN_TRIGGER);
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delayMicroseconds(3300);
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tone(PIN_TRIGGER, 38000);
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delayMicroseconds(200);
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noTone(PIN_TRIGGER);
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delayMicroseconds(100);
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delay(63);
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count ++;
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}
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prevent_sleep = millis() + PREVENT_SLEEP_INTERVAL;
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delay(INTERVAL);
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}
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int measure() {
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int result = 0;
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for(char i=0; i<N_MEASURE; i++) {
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result += analogRead(PIN_SENSOR);
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}
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return result / N_MEASURE;
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}
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void setup() {
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pinMode(PIN_SWITCH, INPUT_PULLUP);
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pinMode(PIN_TRIGGER, OUTPUT);
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digitalWrite(PIN_TRIGGER, LOW);
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}
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void loop() {
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if(digitalRead(PIN_SWITCH)) { // Sensor mode
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unsigned int threshold = map(analogRead(PIN_POT), 0, 1023, 81, 532);
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if(measure() > threshold) {
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trigger();
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}
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else if(millis() > prevent_sleep) {
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trigger();
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}
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} else { // Interval mode
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unsigned long interval = map(analogRead(PIN_POT), 0, 1023, 2000, 300000);
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if(millis() > last_shot + interval) {
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last_shot = millis();
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trigger();
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}
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}
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}
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content/blog/arduino-nikon-remote/pitch.scad
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/*
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* CopyLeft 2017-2022 Pascal Engélibert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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// Ideal values but may increase depending on printer/slicer settings
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// Please print tests to fine tune this parameter
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M3_RAY = 1.725; // M3 bolt ray (diameter=3mm) Ideal=1.5
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// Functions are accessible outside scope, not variables
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function M3_RAY() = M3_RAY;
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module hexagone(l,h) {
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a = l/tan(60);
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union() {
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rotate([0,0,0]) cube([l,a,h],center=true);
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rotate([0,0,60]) cube([l,a,h],center=true);
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rotate([0,0,120]) cube([l,a,h],center=true);
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}
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}
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// added h:0.6 w:0.25
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// b:add bottom nut support
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// s:bottom support height
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module pitch_m2_5(b=0,s=0) {
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translate([0,0,(b+s)/2]) difference() {
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hexagone(7.25,b+s);
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cylinder(h=1+b+s,r=1.375,center=true,$fn=20);
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if(s>0) {
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translate([0,0,-b]) hexagone(5.25,b+s);
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translate([-2.625,0,-(b+s)/2-b]) cube([5.25,5.25,b+s]);
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}
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}
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translate([0,0,1.8+b+s]) difference() {
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hexagone(7.25,3.6);
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cylinder(h=4.6,r=1.375,center=true,$fn=20);
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translate([0,0,-1]) hexagone(5.25,3.6);
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translate([-2.625,0,-2.8]) cube([5.25,5.25,3.6]);
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}
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}
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// b:add bottom nut support
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// s:bottom support height
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// h:head support additionnal thickness
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// w:side additionnal thickness
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module pitch_m3(b=0,s=0,h=0,w=0) {
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translate([0,0,(b+s)/2]) difference() {
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hexagone(7.75+w,b+s);
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cylinder(h=1+b+s,r=M3_RAY,center=true,$fn=20);
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if(s>0) {
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translate([0,0,-b]) hexagone(5.75,b+s);
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translate([-2.875,0,-(b+s)/2-b]) cube([5.75,5.75,b+s]);
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}
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}
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translate([0,0,2+b+s+h/2]) difference() {
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hexagone(7.75+w,4+h);
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cylinder(h=5+h,r=M3_RAY,center=true,$fn=20);
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translate([0,0,-1]) hexagone(5.75,4);
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translate([-2.875,0,-3]) cube([5.75,5.75,4]);
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}
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}
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module pitch_inv_m3(y=0, z1=0, z2=0, hp=0) {
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translate([0,0,2-hp/2]) hexagone(5.75, 4+hp);
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translate([-3,0,-hp]) cube([6, y, 4+hp]);
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translate([0,0,-z2-hp]) cylinder(r=M3_RAY, h=z1+4+z2+hp, $fn=20);
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}
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module simple_pitch_m3(th=1, h1=1, h2=1) {
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difference() {
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translate([0, 0, 2+h1/2-h2/2]) hexagone(7+th, 4+h1+h2);
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pitch_inv_m3(6+th, h1+1, h2+1);
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}
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}
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// a:rod radius
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// t:thickness
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module rod_pitch_m3(a, t=2, center=true) {
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translate([0,0,center?0:4.375]) difference() {
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union() {
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cylinder(h=8.75, r=a+t, center=true, $fn=60);
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rotate([0,90,0]) pitch_m3(a+t,0,1,1);
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}
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cylinder(h=9, r=a, center=true, $fn=60);
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rotate([0,90,0]) cylinder(h=a+t+1, r=1.625, $fn=20);
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}
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}
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module side_pitch_m3(th=1.2, h1=1, h2=2) {
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difference() {
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translate([0,0,2+h1/2-h2/2]) hexagone(7+th, 4+h1+h2);
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pitch_inv_m3(6+th, h1+1, h2+1, h1);
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}
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}
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//rod_pitch_m3(3);
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side_pitch_m3();
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content/blog/arduino-nikon-remote/remote.webp
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content/blog/arduino-nikon-remote/remote.webp
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content/blog/arduino-nikon-remote/timelapser.scad
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content/blog/arduino-nikon-remote/timelapser.scad
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use<pitch.scad>;
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module Box(
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in_l = 50,
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in_w = 45,
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in_h = 40,
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wall_th = 2,
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pot_d = 7.7,
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pot_x = 36,
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pot_y = 20,
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pot_mark_dist = 8,
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pot_mark_d = 3,
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sw_w = 6,
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sw_l = 8.2,
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sw_joint_dist = 15,
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sw_joint_d = 3,
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sw_joint_depth = 1,
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sw_screw_dist = 8,
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sw_screw_d = 3.6,
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sw_x = 12,
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sw_y = 25,
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ino_h = 26,
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ino_l = 47, // Length of Arduino itself
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ino_w = 18, // Width of Arduino itself
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ino_hold1_l = 2.25, // USB side
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ino_hold1_w = 4,
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ino_hold2_l = 2.25, // Other side
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ino_hold2_w = 2,
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ino_hold3_m = 1, // Inner side
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ino_hold3_h = 3,
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ino_hold3_l = 4,
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ino_hold3_th = 2,
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ino_hold3_supp = 5,
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ino_x = 0, // From USB side
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usb_y = 3, // From ino_h
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usb_w = 11,
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usb_h = 7,
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usb_y = 3, // Distance between bottom of Arduino PCB and center of USB port
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sensor_w = 10,
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sensor_h = 7,
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sensor_x = 18,
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sensor_y = 6,
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ir_d = 8,
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ir_x = 15,
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ir_y = 7,
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ir_hold_dist = 17,
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ir_hold_small_h = 2.2,
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ir_hold_small_d = 7,
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ir_hold_offset = -6,
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lid_screw_d = 4,
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lid_screw_dist_side = 16,
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lid_screw_dist_top = 5,
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arm_joint_d = 6,
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arm_joint_th = 5,
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arm_joint_margin = 4,
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arm_joint_dist = 8
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) {
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difference() {
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cube([in_l+2*wall_th, in_w+2*wall_th, in_h+wall_th]);
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// Inside
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translate([wall_th, wall_th, wall_th]) cube([in_l, in_w, in_h+wall_th]);
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// Potentiometer
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translate([wall_th+pot_x, 0, wall_th+pot_y]) rotate([-90,0,0])
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cylinder(d=pot_d, h=wall_th, $fn=60);
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translate([wall_th+pot_x+pot_mark_dist, 0, wall_th+pot_y]) rotate([-90,0,0])
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cylinder(d=pot_mark_d, h=wall_th, $fn=60);
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||||||
|
translate([wall_th+pot_x+-pot_mark_dist, 0, wall_th+pot_y]) rotate([-90,0,0])
|
||||||
|
cylinder(d=pot_mark_d, h=wall_th, $fn=60);
|
||||||
|
|
||||||
|
// Switch
|
||||||
|
translate([wall_th+sw_x, 0, wall_th+sw_y]) union() {
|
||||||
|
translate([-sw_l/2, 0, -sw_w/2]) cube([sw_l, wall_th, sw_w]);
|
||||||
|
translate([-sw_joint_dist/2, wall_th-sw_joint_depth, 0]) rotate([-90,0,0])
|
||||||
|
cylinder(d=sw_joint_d, h=wall_th, $fn=60);
|
||||||
|
translate([sw_joint_dist/2, wall_th-sw_joint_depth, 0]) rotate([-90,0,0])
|
||||||
|
cylinder(d=sw_joint_d, h=wall_th, $fn=60);
|
||||||
|
translate([0, 0, sw_screw_dist]) rotate([-90,0,0])
|
||||||
|
cylinder(d=sw_screw_d, h=wall_th, $fn=60);
|
||||||
|
};
|
||||||
|
|
||||||
|
// USB
|
||||||
|
translate([wall_th+in_l, wall_th+in_w-ino_w/2-usb_w/2, wall_th+ino_h+usb_y-usb_h/2])
|
||||||
|
cube([wall_th, usb_w, usb_h]);
|
||||||
|
|
||||||
|
// Sensor cable
|
||||||
|
translate([wall_th+in_l, wall_th+sensor_x-sensor_w/2, wall_th+sensor_y-sensor_h/2])
|
||||||
|
cube([wall_th, sensor_w, sensor_h]);
|
||||||
|
|
||||||
|
// IR LED
|
||||||
|
translate([0, wall_th+ir_x, wall_th+ir_y])
|
||||||
|
rotate([0,90,0]) cylinder(d=ir_d, h=wall_th, $fn=60);
|
||||||
|
translate([wall_th+ir_hold_dist, wall_th+ir_x+ir_hold_offset, 0])
|
||||||
|
rotate([0,0,30]) pitch_inv_m3();
|
||||||
|
|
||||||
|
// Lid screws
|
||||||
|
translate([0, wall_th+lid_screw_dist_side, wall_th+in_h-lid_screw_dist_top])
|
||||||
|
rotate([0,90,0]) cylinder(d=lid_screw_d, h=wall_th, $fn=60);
|
||||||
|
translate([wall_th+in_l, wall_th+lid_screw_dist_side, wall_th+in_h-lid_screw_dist_top])
|
||||||
|
rotate([0,90,0]) cylinder(d=lid_screw_d, h=wall_th, $fn=60);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arduino holder
|
||||||
|
translate([wall_th, wall_th+in_w-ino_hold2_w, wall_th])
|
||||||
|
cube([ino_x+ino_hold2_l, ino_hold2_w, ino_h]);
|
||||||
|
translate([wall_th, wall_th+in_w-ino_w, wall_th])
|
||||||
|
cube([ino_x+ino_hold2_l, ino_hold2_w, ino_h]);
|
||||||
|
translate([wall_th+in_l-ino_hold1_l, wall_th+in_w-ino_hold1_w, wall_th])
|
||||||
|
cube([ino_x+ino_hold1_l, ino_hold1_w, ino_h]);
|
||||||
|
translate([wall_th+in_l-ino_hold1_l, wall_th+in_w-ino_w, wall_th])
|
||||||
|
cube([ino_x+ino_hold1_l, ino_hold1_w, ino_h]);
|
||||||
|
translate([wall_th, wall_th+in_w-ino_w-ino_hold3_m-ino_hold3_th, wall_th+ino_h])
|
||||||
|
hull() {
|
||||||
|
cube([ino_hold3_l, ino_hold3_th, ino_hold3_h]);
|
||||||
|
translate([-wall_th, 0, -ino_hold3_supp])
|
||||||
|
cube([wall_th, ino_hold3_th, ino_hold3_supp]);
|
||||||
|
};
|
||||||
|
translate([wall_th+in_l-ino_hold3_l, wall_th+in_w-ino_w-ino_hold3_m-ino_hold3_th, wall_th+ino_h])
|
||||||
|
hull() {
|
||||||
|
cube([ino_hold3_l, ino_hold3_th, ino_hold3_h]);
|
||||||
|
translate([ino_hold3_l, 0, -ino_hold3_supp])
|
||||||
|
cube([wall_th, ino_hold3_th, ino_hold3_supp]);
|
||||||
|
};
|
||||||
|
|
||||||
|
// IR LED holder
|
||||||
|
translate([wall_th+ir_hold_dist, wall_th+ir_x+ir_hold_offset, wall_th]) rotate([0,0,-90])
|
||||||
|
pitch_m3(s=ir_y-4-ir_hold_small_h);
|
||||||
|
translate([wall_th+ir_hold_dist, wall_th+ir_x+ir_hold_offset, wall_th+ir_y-ir_hold_small_h])
|
||||||
|
difference() {
|
||||||
|
cylinder(d=ir_hold_small_d, h=ir_hold_small_h, $fn=60);
|
||||||
|
cylinder(r=M3_RAY(), h=ir_hold_small_h, $fn=20);
|
||||||
|
};
|
||||||
|
|
||||||
|
// Arm joint
|
||||||
|
translate([wall_th+in_l/2, 2*wall_th+in_w, 0]) difference() {
|
||||||
|
union() {
|
||||||
|
translate([-arm_joint_d/2-arm_joint_margin, 0, 0])
|
||||||
|
cube([arm_joint_d+2*arm_joint_margin, arm_joint_dist, arm_joint_th]);
|
||||||
|
translate([0, arm_joint_dist, 0])
|
||||||
|
cylinder(d=arm_joint_d+2*arm_joint_margin, h=arm_joint_th, $fn=60);
|
||||||
|
}
|
||||||
|
translate([0, arm_joint_dist, 0])
|
||||||
|
cylinder(d=arm_joint_d, h=arm_joint_th, $fn=60);
|
||||||
|
};
|
||||||
|
|
||||||
|
//color("#ff000066") translate([wall_th+sw_x, wall_th+0.4, wall_th+sw_y]) rotate([0,0,180]) SwitchAttach();
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO ajouter supports Arduino
|
||||||
|
module Lid(
|
||||||
|
in_l = 50,
|
||||||
|
in_w = 45,
|
||||||
|
in_h = 40,
|
||||||
|
wall_th = 2,
|
||||||
|
ino_h = 26,
|
||||||
|
ino_l = 47, // Length of Arduino itself
|
||||||
|
ino_w = 18, // Width of Arduino itself
|
||||||
|
ino_hold_h = 13,
|
||||||
|
ino_hold1_x = 9,
|
||||||
|
ino_hold1_l = 2,
|
||||||
|
ino_hold1_y = 29.5,
|
||||||
|
ino_hold1_w = 11.5,
|
||||||
|
ino_hold2_x = 37.5,
|
||||||
|
ino_hold2_l = 2,
|
||||||
|
ino_hold2_y = 37,
|
||||||
|
ino_hold2_w = 4,
|
||||||
|
border_h = 1.6,
|
||||||
|
border_margin = 0.8,
|
||||||
|
led1_x = 17,
|
||||||
|
led1_y = 38,
|
||||||
|
led1_d = 3,
|
||||||
|
led2_x = 37,
|
||||||
|
led2_y = 33,
|
||||||
|
led2_d = 3,
|
||||||
|
led3_x = 39,
|
||||||
|
led3_y = 33,
|
||||||
|
led3_d = 3,
|
||||||
|
reset_x = 47,
|
||||||
|
reset_y = 35,
|
||||||
|
reset_d = 4.5,
|
||||||
|
lid_screw_d = 4,
|
||||||
|
lid_screw_dist_side = 16,
|
||||||
|
lid_screw_dist_top = 5.5,
|
||||||
|
lid_screw_margin = 2.5,
|
||||||
|
lid_screw_th = 1.5
|
||||||
|
) {
|
||||||
|
difference() {
|
||||||
|
union() {
|
||||||
|
cube([in_l+2*wall_th, in_w+2*wall_th, wall_th]);
|
||||||
|
translate([wall_th+border_margin, wall_th+border_margin, wall_th]) difference() {
|
||||||
|
cube([in_l-2*border_margin, in_w-2*border_margin, border_h]);
|
||||||
|
translate([wall_th, wall_th, 0])
|
||||||
|
cube([in_l-2*border_margin-2*wall_th, in_w-2*border_margin-2*wall_th, border_h]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
translate([led1_x, led1_y, 0])
|
||||||
|
cylinder(d=led1_d, h=wall_th+border_h, $fn=40);
|
||||||
|
translate([led2_x, led2_y, 0])
|
||||||
|
cylinder(d=led2_d, h=wall_th+border_h, $fn=40);
|
||||||
|
translate([led3_x, led3_y, 0])
|
||||||
|
cylinder(d=led3_d, h=wall_th+border_h, $fn=40);
|
||||||
|
translate([reset_x, reset_y, 0])
|
||||||
|
cylinder(d=reset_d, h=wall_th+border_h, $fn=40);
|
||||||
|
}
|
||||||
|
|
||||||
|
translate([wall_th+border_margin, wall_th+lid_screw_dist_side, wall_th]) difference() {
|
||||||
|
union() {
|
||||||
|
translate([0, -lid_screw_d/2-lid_screw_margin, 0])
|
||||||
|
cube([lid_screw_th, lid_screw_d+2*lid_screw_margin, lid_screw_dist_top]);
|
||||||
|
translate([0, 0, lid_screw_dist_top])
|
||||||
|
rotate([0,90,0])
|
||||||
|
cylinder(d=lid_screw_d+2*lid_screw_margin, h=lid_screw_th, $fn=60);
|
||||||
|
translate([lid_screw_th,0,lid_screw_dist_top]) rotate([90,0,0]) rotate([0,90,0])
|
||||||
|
pitch_m3();
|
||||||
|
}
|
||||||
|
translate([0, 0, lid_screw_dist_top])
|
||||||
|
rotate([0,90,0]) cylinder(d=lid_screw_d, h=wall_th, $fn=60);
|
||||||
|
}
|
||||||
|
translate([in_l-border_margin+wall_th-lid_screw_th, wall_th+lid_screw_dist_side, wall_th]) difference() {
|
||||||
|
union() {
|
||||||
|
translate([0, -lid_screw_d/2-lid_screw_margin, 0])
|
||||||
|
cube([lid_screw_th, lid_screw_d+2*lid_screw_margin, lid_screw_dist_top]);
|
||||||
|
translate([0, 0, lid_screw_dist_top])
|
||||||
|
rotate([0,90,0])
|
||||||
|
cylinder(d=lid_screw_d+2*lid_screw_margin, h=lid_screw_th, $fn=60);
|
||||||
|
translate([0,0,lid_screw_dist_top]) rotate([90,0,0]) rotate([0,-90,0])
|
||||||
|
pitch_m3();
|
||||||
|
}
|
||||||
|
translate([0, 0, lid_screw_dist_top])
|
||||||
|
rotate([0,90,0]) cylinder(d=lid_screw_d, h=wall_th, $fn=60);
|
||||||
|
}
|
||||||
|
|
||||||
|
translate([wall_th+ino_hold1_x, wall_th+ino_hold1_y, wall_th])
|
||||||
|
cube([ino_hold1_l, ino_hold1_w, ino_hold_h]);
|
||||||
|
translate([wall_th+ino_hold2_x, wall_th+ino_hold2_y, wall_th])
|
||||||
|
cube([ino_hold2_l, ino_hold2_w, ino_hold_h]);
|
||||||
|
}
|
||||||
|
|
||||||
|
module SwitchAttach(
|
||||||
|
joint_d = 1.5,
|
||||||
|
joint_dist = 15,
|
||||||
|
joint_h = 2,
|
||||||
|
screw_dist = 8,
|
||||||
|
screw_d = 3.6,
|
||||||
|
arm_joint_in_w = 1,
|
||||||
|
arm_joint_out_w = 2,
|
||||||
|
arm_joint_bottom_w = 2.6,
|
||||||
|
arm_screw_in_w = 3,
|
||||||
|
arm_screw_out_w = 5,
|
||||||
|
arm_th = 2,
|
||||||
|
) {
|
||||||
|
translate([-joint_dist/2, arm_th, 0]) rotate([-90,0,0])
|
||||||
|
cylinder(d=joint_d, h=joint_h, $fn=60);
|
||||||
|
translate([joint_dist/2, arm_th, 0]) rotate([-90,0,0])
|
||||||
|
cylinder(d=joint_d, h=joint_h, $fn=60);
|
||||||
|
difference() {
|
||||||
|
translate([-joint_dist/2-arm_joint_out_w, 0, screw_dist-arm_screw_in_w])
|
||||||
|
cube([joint_dist+2*arm_joint_out_w, arm_th, arm_screw_in_w+arm_screw_out_w]);
|
||||||
|
translate([0, 0, screw_dist]) rotate([-90,0,0])
|
||||||
|
cylinder(d=screw_d, h=arm_th, $fn=60);
|
||||||
|
};
|
||||||
|
translate([-joint_dist/2-arm_joint_out_w, 0, -arm_joint_bottom_w])
|
||||||
|
cube([arm_joint_out_w+arm_joint_in_w, arm_th, arm_joint_bottom_w+screw_dist]);
|
||||||
|
translate([joint_dist/2-arm_joint_in_w, 0, -arm_joint_bottom_w])
|
||||||
|
cube([arm_joint_out_w+arm_joint_in_w, arm_th, arm_joint_bottom_w+screw_dist]);
|
||||||
|
}
|
||||||
|
|
||||||
|
module ArmJoint(
|
||||||
|
d = 19,
|
||||||
|
rod_d = 3.8,
|
||||||
|
rod_dist = 8.5,
|
||||||
|
rod_z = 0.3,
|
||||||
|
th = 4.8,
|
||||||
|
hole_d = 4,
|
||||||
|
) {
|
||||||
|
difference() {
|
||||||
|
cylinder(d=d, h=th, $fn=80);
|
||||||
|
|
||||||
|
cylinder(d=hole_d, h=th+1, $fn=40);
|
||||||
|
|
||||||
|
translate([-rod_dist/2, -d/2, rod_z+th])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=rod_d, h=d, $fn=40);
|
||||||
|
translate([rod_dist/2, -d/2, rod_z+th])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=rod_d, h=d, $fn=40);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
module RodSupport(
|
||||||
|
ear_l = 15,
|
||||||
|
ear_th = 4,
|
||||||
|
out_d = 32,
|
||||||
|
rod_d = 25.5,
|
||||||
|
rod_offset = 0.5,
|
||||||
|
screw_d = 4,
|
||||||
|
screw_dist = 9,
|
||||||
|
w = 10,
|
||||||
|
) {
|
||||||
|
difference() {
|
||||||
|
union() {
|
||||||
|
cylinder(d=out_d, h=w, $fn=80);
|
||||||
|
hull() {
|
||||||
|
translate([out_d/2+screw_dist, 0, w/2])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=w, h=ear_th, $fn=60);
|
||||||
|
translate([-out_d/2-screw_dist, 0, w/2])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=w, h=ear_th, $fn=60);
|
||||||
|
}
|
||||||
|
//translate([-out_d/2-ear_l, 0, 0]) cube([out_d+2*ear_l, ear_th, w]);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Ears
|
||||||
|
translate([-out_d/2, -out_d, 0]) cube([out_d, out_d, w]);
|
||||||
|
// Rod
|
||||||
|
translate([0, -rod_offset, 0]) cylinder(d=rod_d, h=w, $fn=80);
|
||||||
|
// Screws
|
||||||
|
translate([out_d/2+screw_dist, 0, w/2])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=screw_d, h=ear_th, $fn=40);
|
||||||
|
translate([-out_d/2-screw_dist, 0, w/2])
|
||||||
|
rotate([-90, 0, 0])
|
||||||
|
cylinder(d=screw_d, h=ear_th, $fn=40);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//Box();
|
||||||
|
//rotate([90,0,0]) SwitchAttach();
|
||||||
|
//Lid();
|
||||||
|
ArmJoint();
|
||||||
|
//RodSupport();
|
||||||
Loading…
Add table
Add a link
Reference in a new issue