Différences entre les pages « Modèle:CC-by-sa-4.0 » et « CNC »

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## creative commons
 
  
# Attribution-ShareAlike 4.0 International
+
Ce tutoriel à pour but d'expliquer comment utiliser la machine outils à commande numérique (CNC) du club.
  
Creative Commons Corporation (“Creative Commons”) is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an “as-is” basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.
 
  
### Using Creative Commons Public Licenses
+
# Précautions
  
Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.
+
Avant de commencer à utiliser la CNC, il faut avoir connaissance des règles de sécurité à respecter.
 +
* Utiliser des protections auditives car l'usinage de métal est très bruyant
 +
* Porter des lunettes de protection
 +
* Se tenir prêt appuyer sur le bouton d’arrêt d'urgence, surtout au début. Mais, ne pas de tenir en face de la CNC au cas ou la pièce se décolle et s'envole
  
* __Considerations for licensors:__ Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC-licensed material, or material used under an exception or limitation to copyright. [More considerations for licensors](http://wiki.creativecommons.org/Considerations_for_licensors_and_licensees#Considerations_for_licensors).
+
# Mise en marche
  
* __Considerations for the public:__ By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor’s permission is not necessary for any reason–for example, because of any applicable exception or limitation to copyright–then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described. Although not required by our licenses, you are encouraged to respect those requests where reasonable. [More considerations for the public](http://wiki.creativecommons.org/Considerations_for_licensors_and_licensees#Considerations_for_licensees).
+
Pour mettre la CNC sous tension, il faut allumer la multiprise sous la table puis vérifier que le bouton d’arrêt d'urgence soit sur la conne position et que le capot soit bien fermés.
  
## Creative Commons Attribution-ShareAlike 4.0 International Public License
+
# Fixation de la pièce
  
By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-ShareAlike 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.
+
Il existe différentes méthodes de fixations possible en fonction du type de pièce à usiner:
  
### Section 1 – Definitions.
+
* Si c'est une plaque fine et large, on peut la fixer avec du scotch double-face
 +
* Si on usine un bloc d'aluminium il est préférable de le visser à un sur-martyre car elles risquent de se décoller facilement.
  
a. __Adapted Material__ means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.
+
Si c'est une plaque fine ça passe au scotch double face, si c'est un bloc, il faut le fixer au sur-martyre
  
b. __Adapter's License__ means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.
+
Il est aussi possible d'usiner un sur-martyre afin d'avoir une surface plane ainsi que de faire un positionnement précis de la pièce.
  
c. __BY-SA Compatible License__ means a license listed at [creativecommons.org/compatiblelicenses](http://creativecommons.org/compatiblelicenses), approved by Creative Commons as essentially the equivalent of this Public License.
+
# Montage des outils
  
d. __Copyright and Similar Rights__ means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.
+
Afin de pouvoir usiner il faut monter sur la broche l’outil qui a été spécifié lors de la génération du Gcode.
 +
Afin de maintenir l’outil dans la broche il faut l’insérer dans une pince aux bonnes dimensions.
 +
Lors du montage de l’outil dans la pince il vas y avoir un cran, ne pas essayer de pousser plus loin ou le démontage vas être difficile.
  
e. __Effective Technological Measures__ means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.
+
Ensuite on insère l'outil dans la pince et dans l'écrou pour pouvoir ensuite visser le tout à la broche ( ATTENTION: Il faut bien le faire dans cet ordre sinon l'outil vas être difficile à retirer)
 +
Il faut utiliser une clés de 17 pour finir le serrage de la pince.
  
f. __Exceptions and Limitations__ means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.
+
# Liste des outils du club
  
g. __License Elements__ means the license attributes listed in the name of a Creative Commons Public License. The License Elements of this Public License are Attribution and ShareAlike.
+
* A121 8mmHX (4279 f1424537)
 +
* Astra HSSCo8 5mm 3dent
 +
* Astra HSSCo8 6mm 3dent
 +
* Fraise gangé par le PLA (finition?)
 +
* 2 tetes sphériques??
 +
* FCCD317 3.17/10/3.17
 +
* FC1DA3008 1dent 3/8/3.17
 +
* Pointes javelot j3.1001 10² 0.1mm X00PE21NX
  
h. __Licensed Material__ means the artistic or literary work, database, or other material to which the Licensor applied this Public License.
+
# Connexion
  
i. __Licensed Rights__ means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.
+
La CNC est contrôlés par une arduino uno équipés d'un CNC Shield et exécutant GRBL afin de transformer des instructions G-code en mouvements.
  
j. __Licensor__ means the individual(s) or entity(ies) granting rights under this Public License.
+
Pour simplifier l'utilisation de la CNC, elle comporte aussi une raspberry connecté à l'arduino et héberge un serveur CNCjs.
  
k. __Share__ means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.
+
CNCjs permet de contrôler la CNC via une interface web et ce depuis n'importe quel ordinateur connectés au réseau de la raspberry.
  
l. __Sui Generis Database Rights__ means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.
+
Pour utiliser la CNC il faut dans un premier temps se connecter au réseau de la raspberry pi.
 +
Il faut se connecter au réseau WIFI :
  
m. __You__ means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.
+
* SSID : Gisel
 +
* MDP : *****
  
### Section 2 – Scope.
+
Puis aller sur l'interface de CNCjs à l’adresse:
  
a. ___License grant.___
+
`http://"IP raspberry":5080/#/workspace`
  
  1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:
 
  
      A. reproduce and Share the Licensed Material, in whole or in part; and
+
# L'interface de contrôle
  
      B. produce, reproduce, and Share Adapted Material.
 
  
  2. __Exceptions and Limitations.__ For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.
 
  
  3. __Term.__ The term of this Public License is specified in Section 6(a).
+
## Déplacement de la broche
  
  4. __Media and formats; technical modifications allowed.__ The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a)(4) never produces Adapted Material.
+
## Contrôle de la rotation de la broche
  
  5. __Downstream recipients.__
+
La Broche est alimentés directement par le secteur et son alimentation est commandés par l'arduino via un relais.
 +
Les seules commandes permettant de le contrôler sont la mise en rotation et l’arrêt.
  
      A. __Offer from the Licensor – Licensed Material.__ Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.
+
[[CNCjs_Broche.png|Interface de commande moteur]]
  
      B. __Additional offer from the Licensor – Adapted Material.__ Every recipient of Adapted Material from You automatically receives an offer from the Licensor to exercise the Licensed Rights in the Adapted Material under the conditions of the Adapter’s License You apply.
+
Pour régler la vitesse il utiliser la molette sur la broche.
  
      C. __No downstream restrictions.__ You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.
+
| Vitesse | rpm  |
 +
|---------|-------|
 +
| 1      | 10000 |
 +
| 2      | 12600 |
 +
| 3      | 17000 |
 +
| 4      | 21000 |
 +
| 5      | 25600 |
 +
| 6      | 29000 |
  
  6. __No endorsement.__ Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).
+
## Macros
  
b. ___Other rights.___
+
Il est possible de créer des macros afinc d'exécuter une suite d'instructions en un clic avec les macros.
  
  1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.
+
# Initialisation
  
  2. Patent and trademark rights are not licensed under this Public License.
+
Une fois les étapes précédentes effectués, on peut faire le homming afin que la CNC sache où se situe la broche.
  
  3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties.
+
On peut charger le fichier G-code indiquant les actions à effectuer
 +
Une fois le fichier chargés, c'est le moment de déplacer la broche via l'interface de CNCjs pour la placer au niveau de l'origine d'usinage. Il faut biens penser à réduire le pas de déplacement quand on effectue des mouvement sur l'axe Z et mettre le moteur en marche pour ne pas abîmer la fraise si elle se retrouve trop proche de la pièce à usiner.
 +
Quand la broche est en position, on peut faire le zero de la position de travail.
  
### Section 3 – License Conditions.
 
  
Your exercise of the Licensed Rights is expressly made subject to the following conditions.
+
# Démarrage
  
a. ___Attribution.___
+
# Remarques
 +
Si il y a un changement d'outils il faut refaire le zero de la position.
  
  1. If You Share the Licensed Material (including in modified form), You must:
+
# Correction de défaut de planéité pour les gravures
  
      A. retain the following if it is supplied by the Licensor with the Licensed Material:
+
Pour faire de la gravure, il est aussi possible d'appliquer une correction de niveau.
 +
Il faut connecter le fil avec l'étiquette PCB à la pièce à usiner et se connecter en ssh à la raspberry afin de lancer un utilitaire.
 +
```
 +
pi@v1pi:~ $ cd cncjs-kt-ext/
 +
pi@v1pi:~/cncjs-kt-ext $ npm start
  
        i. identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);
+
```
  
        ii. a copyright notice;
+
Après cela on vas pouvoir exécuter la macro Autolevel qui vas utiliser la broche comme sonde sur la pièce.
  
        iii. a notice that refers to this Public License;
+
La sonde utilise le fait que la broche soit reliés à la terre. Quand la broche vas se retrouver en contact avec la pièce on vas fermer un circuits reliés à l'arduino via un optocoupleur.
 
+
Il faut donc être sure de la connection entre le fil et la pièce.
        iv. a notice that refers to the disclaimer of warranties;
 
 
 
        v. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;
 
 
 
      B. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and
 
 
 
      C. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.
 
 
 
  2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.
 
 
 
  3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.
 
 
 
b. ___ShareAlike.___
 
 
 
In addition to the conditions in Section 3(a), if You Share Adapted Material You produce, the following conditions also apply.
 
 
 
1. The Adapter’s License You apply must be a Creative Commons license with the same License Elements, this version or later, or a BY-SA Compatible License.
 
 
 
2. You must include the text of, or the URI or hyperlink to, the Adapter's License You apply. You may satisfy this condition in any reasonable manner based on the medium, means, and context in which You Share Adapted Material.
 
 
 
3. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, Adapted Material that restrict exercise of the rights granted under the Adapter's License You apply.
 
 
 
### Section 4 – Sui Generis Database Rights.
 
 
 
Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:
 
 
 
a. for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database;
 
 
 
b. if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material, including for purposes of Section 3(b); and
 
 
 
c. You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.
 
 
 
For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.
 
 
 
### Section 5 – Disclaimer of Warranties and Limitation of Liability.
 
 
 
a. __Unless otherwise separately undertaken by the Licensor, to the extent possible, the Licensor offers the Licensed Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licensed Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable. Where disclaimers of warranties are not allowed in full or in part, this disclaimer may not apply to You.__
 
 
 
b. __To the extent possible, in no event will the Licensor be liable to You on any legal theory (including, without limitation, negligence) or otherwise for any direct, special, indirect, incidental, consequential, punitive, exemplary, or other losses, costs, expenses, or damages arising out of this Public License or use of the Licensed Material, even if the Licensor has been advised of the possibility of such losses, costs, expenses, or damages. Where a limitation of liability is not allowed in full or in part, this limitation may not apply to You.__
 
 
 
c. The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.
 
 
 
### Section 6 – Term and Termination.
 
 
 
a. This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.
 
 
 
b. Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:
 
 
 
  1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or
 
 
 
  2. upon express reinstatement by the Licensor.
 
 
 
  For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.
 
 
 
c. For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.
 
 
 
d. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.
 
 
 
### Section 7 – Other Terms and Conditions.
 
 
 
a. The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.
 
 
 
b. Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.
 
 
 
### Section 8 – Interpretation.
 
 
 
a. For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.
 
 
 
b. To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.
 
 
 
c. No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.
 
 
 
d. Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.
 
 
 
> Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” The text of the Creative Commons public licenses is dedicated to the public domain under the [CC0 Public Domain Dedication](https://creativecommons.org/publicdomain/zero/1.0/legalcode). Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at [creativecommons.org/policies](http://creativecommons.org/policies), Creative Commons does not authorize the use of the trademark “Creative Commons” or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.
 
>
 
> Creative Commons may be contacted at creativecommons.org.
 

Version du 5 mars 2020 à 19:00

Ce tutoriel à pour but d'expliquer comment utiliser la machine outils à commande numérique (CNC) du club.


  1. Précautions

Avant de commencer à utiliser la CNC, il faut avoir connaissance des règles de sécurité à respecter.

* Utiliser des protections auditives car l'usinage de métal est très bruyant
* Porter des lunettes de protection
* Se tenir prêt appuyer sur le bouton d’arrêt d'urgence, surtout au début. Mais, ne pas de tenir en face de la CNC au cas ou la pièce se décolle et s'envole
  1. Mise en marche

Pour mettre la CNC sous tension, il faut allumer la multiprise sous la table puis vérifier que le bouton d’arrêt d'urgence soit sur la conne position et que le capot soit bien fermés.

  1. Fixation de la pièce

Il existe différentes méthodes de fixations possible en fonction du type de pièce à usiner:

  • Si c'est une plaque fine et large, on peut la fixer avec du scotch double-face
  • Si on usine un bloc d'aluminium il est préférable de le visser à un sur-martyre car elles risquent de se décoller facilement.

Si c'est une plaque fine ça passe au scotch double face, si c'est un bloc, il faut le fixer au sur-martyre

Il est aussi possible d'usiner un sur-martyre afin d'avoir une surface plane ainsi que de faire un positionnement précis de la pièce.

  1. Montage des outils

Afin de pouvoir usiner il faut monter sur la broche l’outil qui a été spécifié lors de la génération du Gcode. Afin de maintenir l’outil dans la broche il faut l’insérer dans une pince aux bonnes dimensions. Lors du montage de l’outil dans la pince il vas y avoir un cran, ne pas essayer de pousser plus loin ou le démontage vas être difficile.

Ensuite on insère l'outil dans la pince et dans l'écrou pour pouvoir ensuite visser le tout à la broche ( ATTENTION: Il faut bien le faire dans cet ordre sinon l'outil vas être difficile à retirer) Il faut utiliser une clés de 17 pour finir le serrage de la pince.

  1. Liste des outils du club
  • A121 8mmHX (4279 f1424537)
  • Astra HSSCo8 5mm 3dent
  • Astra HSSCo8 6mm 3dent
  • Fraise gangé par le PLA (finition?)
  • 2 tetes sphériques??
  • FCCD317 3.17/10/3.17
  • FC1DA3008 1dent 3/8/3.17
  • Pointes javelot j3.1001 10² 0.1mm X00PE21NX
  1. Connexion

La CNC est contrôlés par une arduino uno équipés d'un CNC Shield et exécutant GRBL afin de transformer des instructions G-code en mouvements.

Pour simplifier l'utilisation de la CNC, elle comporte aussi une raspberry connecté à l'arduino et héberge un serveur CNCjs.

CNCjs permet de contrôler la CNC via une interface web et ce depuis n'importe quel ordinateur connectés au réseau de la raspberry.

Pour utiliser la CNC il faut dans un premier temps se connecter au réseau de la raspberry pi. Il faut se connecter au réseau WIFI :

  • SSID : Gisel
  • MDP : *****

Puis aller sur l'interface de CNCjs à l’adresse:

`http://"IP raspberry":5080/#/workspace`


  1. L'interface de contrôle


    1. Déplacement de la broche
    1. Contrôle de la rotation de la broche

La Broche est alimentés directement par le secteur et son alimentation est commandés par l'arduino via un relais. Les seules commandes permettant de le contrôler sont la mise en rotation et l’arrêt.

Interface de commande moteur

Pour régler la vitesse il utiliser la molette sur la broche.

| Vitesse | rpm | |---------|-------| | 1 | 10000 | | 2 | 12600 | | 3 | 17000 | | 4 | 21000 | | 5 | 25600 | | 6 | 29000 |

    1. Macros

Il est possible de créer des macros afinc d'exécuter une suite d'instructions en un clic avec les macros.

  1. Initialisation

Une fois les étapes précédentes effectués, on peut faire le homming afin que la CNC sache où se situe la broche.

On peut charger le fichier G-code indiquant les actions à effectuer Une fois le fichier chargés, c'est le moment de déplacer la broche via l'interface de CNCjs pour la placer au niveau de l'origine d'usinage. Il faut biens penser à réduire le pas de déplacement quand on effectue des mouvement sur l'axe Z et mettre le moteur en marche pour ne pas abîmer la fraise si elle se retrouve trop proche de la pièce à usiner. Quand la broche est en position, on peut faire le zero de la position de travail.


  1. Démarrage
  1. Remarques

Si il y a un changement d'outils il faut refaire le zero de la position.

  1. Correction de défaut de planéité pour les gravures

Pour faire de la gravure, il est aussi possible d'appliquer une correction de niveau. Il faut connecter le fil avec l'étiquette PCB à la pièce à usiner et se connecter en ssh à la raspberry afin de lancer un utilitaire. ``` pi@v1pi:~ $ cd cncjs-kt-ext/ pi@v1pi:~/cncjs-kt-ext $ npm start

```

Après cela on vas pouvoir exécuter la macro Autolevel qui vas utiliser la broche comme sonde sur la pièce.

La sonde utilise le fait que la broche soit reliés à la terre. Quand la broche vas se retrouver en contact avec la pièce on vas fermer un circuits reliés à l'arduino via un optocoupleur. Il faut donc être sure de la connection entre le fil et la pièce.