EPS@ISEP | The European Project Semester (EPS) at ISEP

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
report [2017/06/27 21:31] – [7.8 Mechanical components] team3report [2017/06/28 09:14] (current) – [9.2. Drawings] team3
Line 1172: Line 1172:
 <WRAP centeralign> <WRAP centeralign>
 <figure SOSM1> <figure SOSM1>
-{{ ::render_poster.jpg?400 |}}+{{ ::report11.jpg?400 |}}
 <caption>The SOSM</caption> <caption>The SOSM</caption>
 </figure> </figure>
Line 1457: Line 1457:
 <WRAP centeralign> <WRAP centeralign>
 <figure Drawing1> <figure Drawing1>
-{{ ::sosm_1.jpg?400 | }}+{{ ::report2.jpg?400 | }}
 <caption>Structural Design</caption> <caption>Structural Design</caption>
 </figure> </figure>
Line 1464: Line 1464:
 <WRAP centeralign> <WRAP centeralign>
 <figure Drawing2> <figure Drawing2>
-{{ ::render_wiki.19.jpg?400 | }}+{{ ::report3.jpg?400 | }}
 <caption>Structural Design</caption> <caption>Structural Design</caption>
 </figure> </figure>
Line 1620: Line 1620:
 |  015  |  Socket head cap screw DIN 912 M4 x 25   |  DIN 912  |  :::  |  91280410  |  8  |  0.036  |  0.288  | |  015  |  Socket head cap screw DIN 912 M4 x 25   |  DIN 912  |  :::  |  91280410  |  8  |  0.036  |  0.288  |
 |  016  |  Hexagonal nut DIN 934 M4  |  DIN 934  |  :::  |  934M04ZN  |  7  |  0.01  |  0.07  | |  016  |  Hexagonal nut DIN 934 M4  |  DIN 934  |  :::  |  934M04ZN  |  7  |  0.01  |  0.07  |
-|  017  |  Flat washer DIN 125a M4  |  DIN 125a  |  :::  |  ANC04ZN  |  7  |  0.0125  |  0.063  |+|  017  |  Flat washer DIN 125a M4  |  DIN 125a  |  :::  |  ANC04ZN  |  7  |  0.0125  |  0.088  |
 |  018 * |  Stepper motor NEMA 17  |  NEMA 17  |  DIGIKEY  |  MTR-DC17T-275-F  |  2  |  13.09  |  26.08  | |  018 * |  Stepper motor NEMA 17  |  NEMA 17  |  DIGIKEY  |  MTR-DC17T-275-F  |  2  |  13.09  |  26.08  |
 |  019  |  Azimuth motor bracket  |  PLA  |  ISEP  |  ISEP@3DPRINT02  |  1  |  0.00  |  0.00  |  |  019  |  Azimuth motor bracket  |  PLA  |  ISEP  |  ISEP@3DPRINT02  |  1  |  0.00  |  0.00  | 
Line 1650: Line 1650:
 |  045  |  M8 housing lower support  |  PLA  |  ISEP  |  ISEP@3DPRINT09  |  1  |  0.00  |  0.00  | |  045  |  M8 housing lower support  |  PLA  |  ISEP  |  ISEP@3DPRINT09  |  1  |  0.00  |  0.00  |
 |  046  |  M8 housing upper support  |  :::  |  :::  |  ISEP@3DPRINT10  |  1  |  0.00  |  0.00  | |  046  |  M8 housing upper support  |  :::  |  :::  |  ISEP@3DPRINT10  |  1  |  0.00  |  0.00  |
-|  047  |  Hexagonal head screw DIN 933 M6 x 16  |  DIN 933  |  ARTIFIXO  |  93380616ZN  |  1  |  0.049  |  0.249  |+|  047  |  Hexagonal head screw DIN 933 M6 x 16  |  DIN 933  |  ARTIFIXO  |  93380616ZN  |  1  |  0.049  |  0.049  |
 |  048  |  Socket head cap screw DIN 912 M4 x 40  |  DIN 912  |  :::  |  9120440  |  1  |  0.12  |  0.12  | |  048  |  Socket head cap screw DIN 912 M4 x 40  |  DIN 912  |  :::  |  9120440  |  1  |  0.12  |  0.12  |
 |  049  |  Motor joint's articulating shaft  |  DIN 975  |  LEROYMERLIN  |  ISEP@WS15  |  1  |  0.00  |  0.00  | |  049  |  Motor joint's articulating shaft  |  DIN 975  |  LEROYMERLIN  |  ISEP@WS15  |  1  |  0.00  |  0.00  |
 |  050 * |  End range sensor  |  -  |  ISEP  |  ISEP@EL01  |  4  |  0.00  |  0.00  | |  050 * |  End range sensor  |  -  |  ISEP  |  ISEP@EL01  |  4  |  0.00  |  0.00  |
-|  051  |  Slotted cheese head machine screw DIN 84 M2 x 12  |  DIN 84  |  ARTIFIXO  |  0840212Z  |  6  |  0.1255  |  0.753  |+|  051  |  Slotted cheese head machine screw DIN 84 M2 x 12  |  DIN 84  |  ARTIFIXO  |  0840212Z  |  6  |  0.1255  |  0.735  |
 |  052 *  |  Power supply  |  -  |  ISEP  |  ISEP@EL02  |  1  |  0.00  |  0.00  | |  052 *  |  Power supply  |  -  |  ISEP  |  ISEP@EL02  |  1  |  0.00  |  0.00  |
-^  Total (€)  ^^^^^^  17.20  ^^+^  Total (€)  ^^^^^^  17.02  ^^
 </WRAP> </WRAP>
  
Line 1712: Line 1712:
 <WRAP box center centeralign 900px> <WRAP box center centeralign 900px>
 ^  Description  ^  Supplier  ^  Quantity (Uds)  ^  Unitary Price (€)  ^  Final Price (€)  ^  ^  Description  ^  Supplier  ^  Quantity (Uds)  ^  Unitary Price (€)  ^  Final Price (€)  ^ 
-|  Hexagonal Head Screw DIN 933 M6 x 16  |  ARTIFIXO  |  5  |  0.049  |  0.245  |  +|  Hexagonal Head Screw DIN 933 M6 x 16  |  ARTIFIXO  |  9  |  0.049  |  0.441  | 
-|  Hexagonal nut DIN 934 M4  |  :::  |  3  |  0.0125  |  0.0375  |+
 |  Hexagonal nut DIN 934 M6  |  :::  |  2  |  0.0116  |  0.0232  | |  Hexagonal nut DIN 934 M6  |  :::  |  2  |  0.0116  |  0.0232  |
 |  Slotted Flat Head Wood Screw DIN 97 Ø2 x 10  |  :::  |  37  |  0.088  |  3.21  | |  Slotted Flat Head Wood Screw DIN 97 Ø2 x 10  |  :::  |  37  |  0.088  |  3.21  |
-|  Flat Washer DIN 125a M6  |  :::  |  1  |  0.012  |  0.012  | +|  Flat Washer DIN 125a M6  |  :::  |  5  |  0.012  |  0.06  | 
-|  Socket head cap screw DIN 912 M4 x 10   |  :::  |  1  |  0.036  |  0.036  | +|  Socket head cap screw DIN 912 M4 x 10   |  :::  |  5  |  0.036  |  0.18  |
-|  Socket head cap screw DIN 912 M4 x 25  |  :::  |  1  |  0.10  |  0.10  |+
 |  Socket head cap screw DIN 912 M6 x 25  |  :::  |  1  |  0.10  |  0.10  | |  Socket head cap screw DIN 912 M6 x 25  |  :::  |  1  |  0.10  |  0.10  |
 +|  Grub screw DIN 916 M4 x 6  |  :::  |  4  |  0.036  |  0.144  |
 |  Union Square 30 x 30  |  LEROY MERLIN  |  4  |  0.18  |  0.72  |   |  Union Square 30 x 30  |  LEROY MERLIN  |  4  |  0.18  |  0.72  |  
 |  PLA Printing Filament  |  BOXELECTRONICA  |  1  |  19.99  |  19.99  | |  PLA Printing Filament  |  BOXELECTRONICA  |  1  |  19.99  |  19.99  |
-^  Economic impact (€)  ^^  4.48  ^^^+^  Economic impact (€)  ^^  4.88  ^^^
 </WRAP> </WRAP>
  
Line 1742: Line 1741:
 <WRAP box center centeralign 650px> <WRAP box center centeralign 650px>
 ^  Name  ^  Description  ^  Image  ^ ^  Name  ^  Description  ^  Image  ^
-|  Electric driller {{ref>A1}}  |  Making holes in softer materials like wood and plastic |  <WRAP centeralign><figure A1>+|  Electric driller {{ref>A1}}  |  Making holes in softer materials like wood and plastic  |  <WRAP centeralign><figure A1>
 {{ ::9873c6ca-5f00-4143-af8d-17681ec254d8.jpg?200 |}} {{ ::9873c6ca-5f00-4143-af8d-17681ec254d8.jpg?200 |}}
 <caption>Electric driller </caption> <caption>Electric driller </caption>
Line 1750: Line 1749:
 <caption>Industrial driller </caption> <caption>Industrial driller </caption>
 </figure></WRAP>  | </figure></WRAP>  |
-|  Electric keyhole saw {{ref>A3}} |  Cutting wood and plastic  |  <WRAP centeralign><figure A3>+|  Electric keyhole saw {{ref>A3}}  |  Cutting wood and plastic  |  <WRAP centeralign><figure A3>
 {{ ::industrial_keyhole_saw.jpeg?200 |}} {{ ::industrial_keyhole_saw.jpeg?200 |}}
 <caption>Electric Keyhole Saw </caption> <caption>Electric Keyhole Saw </caption>
 </figure></WRAP>  | </figure></WRAP>  |
-|  Manual saw {{ref>A4}} |  Cutting wood and metal  |  <WRAP centeralign><figure A4>+|  Manual saw {{ref>A4}}  |  Cutting wood and metal  |  <WRAP centeralign><figure A4>
 {{ ::19125892_10213513295767811_1682828079_o.jpg?200 |}} {{ ::19125892_10213513295767811_1682828079_o.jpg?200 |}}
 <caption>Manual Saw </caption> <caption>Manual Saw </caption>
Line 1770: Line 1769:
 <caption>Welding Workbench </caption> <caption>Welding Workbench </caption>
 </figure></WRAP>    | </figure></WRAP>    |
-|  Screw tools {{ref>A8}} |  Screwing  | <WRAP centeralign><figure A8>+|  Screw tools {{ref>A8}}  |  Screwing  | <WRAP centeralign><figure A8>
 {{ ::19125433_10213513296767836_216964424_o.jpg?200 |}}  {{ ::19125433_10213513296767836_216964424_o.jpg?200 |}} 
 <caption>Screw Tools </caption> <caption>Screw Tools </caption>
 </figure></WRAP>   | </figure></WRAP>   |
-|  Sanding paper and file {{ref>A9}} |  Sanding metal and wood  | <WRAP centeralign><figure A9>+|  Sanding paper and file {{ref>A9}}  |  Sanding metal and wood  | <WRAP centeralign><figure A9>
 {{ ::19181927_10213513296527830_819736900_o.jpg?200 |}} {{ ::19181927_10213513296527830_819736900_o.jpg?200 |}}
 <caption>MSanding Paper and File </caption> <caption>MSanding Paper and File </caption>
Line 1793: Line 1792:
 <caption>Threading Kit </caption> <caption>Threading Kit </caption>
 </figure></WRAP>   | </figure></WRAP>   |
-|  Hammer and awl {{ref>A14}} |  Marking the position of the drills  | <WRAP centeralign><figure A14>+|  Hammer and awl {{ref>A14}}  |  Marking the position of the drills  | <WRAP centeralign><figure A14>
  {{ ::19104903_10213513295647808_1318668765_o.jpg?200 |}}    {{ ::19104903_10213513295647808_1318668765_o.jpg?200 |}}  
 <caption>Hammer and Awl </caption> <caption>Hammer and Awl </caption>
Line 1907: Line 1906:
 </WRAP> </WRAP>
  
-  * **039 - Printed pieces** +  * **006/019/020/021/028/032/038/043/045/046 - Printed pieces** 
-  - Despite the fact that the printed parts should have worked properly from the beginning, due to the lack of slack by the shirnkage of the same, some of them had to be either filed or drilled.+  - Despite the fact that the printed parts should have worked properly from the beginning, due to the lack of slack by the shrinkage of the same, some of them had to be either filed or drilled: 
 +    - 006: This piece has two holes for M4 screws, them had to be made bigger. 
 +    - 019 and 038: The motors did not fit in the brackets because the centering hole was too small, it needed to be filed. 
 +    - 020: This component needed a hole to house a screw, added afterwards the piece was printed. 
 +    - 021 and 045: A thread was made to this component, in order to attach some metric screws. 
 +    - 043: This components was printed twice, with a different geometry, because the first one was as big as did not work in a good way. Also it needed some threaded holes. 
 ==== 7.10 Software Development ==== ==== 7.10 Software Development ====
  
Line 2143: Line 2147:
 {{ :suno_movement_test.mp4?600 |}} {{ :suno_movement_test.mp4?600 |}}
 </WRAP> </WRAP>
-**Conclusion:** The mirror does move, but the precision of the structure is not that high. This might be caused by a slightly crooked threaded rod and some parts not fitting each other perfectly. That might influence the precision of the system, which is however tolerable for the prototype.\\+**Conclusion:** The mirror does move, but the precision of the structure is not that high. This might be caused by a slightly crooked threaded rod and some parts not fitting each other perfectly. That might influence the precision of the system, which is however tolerable for the prototype. 
 + 
 +**Correction:** There was a problem with the vertical movement, because the motor was rocking. The problem was the coupling, which had two holes, for the motor and the threaded rod, not well aligned. After making this component again, the movement was performed without any problem.\\ 
 + 
 +=== 7.11.5 Sun Tracking test === 
 +After the corrections of vertical and horizontal movements the sun tracking mechanism was tested.\\ 
 +** Method:** The mirror was placed near the window and the focus point was adjusted. Then the mirrors behaviour was observed for over 1 hour.\\ 
 +**Expected behaviour:** The mirror should reposition itself every 1 minute and the sun spot should not move.\\ 
 +** Result:** The mirror was repositioning correctly. the sun spot was not moving. Below is the timelaps video of the whole test and the photos which were taken every 5 min for 1 hour.\\ 
 +<WRAP centeralign> 
 +{{ :p1.jpg?600 |}} 
 +{{ :p2.jpg?600 |}} 
 +{{ :p3.jpg?600 |}} 
 +{{ :p4.jpg?600 |}} 
 +{{ :p5.jpg?600 |}} 
 +{{ :p6.jpg?600 |}} 
 +{{ :p7.jpg?600 |}} 
 +{{ :p8.jpg?600 |}} 
 +{{ :p9.jpg?600 |}} 
 +{{ :p10.jpg?600 |}} 
 +{{ :p11.jpg?600 |}} 
 +{{ :p12.jpg?600 |}} 
 +{{ :p13.jpg?600 |}} 
 +{{ :p14.jpg?600 |}} 
 + 
 +</WRAP> 
 +**Conclusion:** The repositioning mechanism works properly. The mirror is able to track the sun on its own. 
 ==== 7.12 Conclusions ==== ==== 7.12 Conclusions ====
  
Line 2153: Line 2184:
   * At the beginning, the construction process was performed slowly. The main reason was because the lack of experience regarding using the most of the tools that the workshop had to work with. For instance, the technicians helped the team in some operations, such the welding or the machining process. For this reason, the team is aware that some of the components could be manufactured better. Even so, the team is proud of the final result, even if it is just a prototype.   * At the beginning, the construction process was performed slowly. The main reason was because the lack of experience regarding using the most of the tools that the workshop had to work with. For instance, the technicians helped the team in some operations, such the welding or the machining process. For this reason, the team is aware that some of the components could be manufactured better. Even so, the team is proud of the final result, even if it is just a prototype.
   * The product is a bit heavy, specially the leadscrew motor. Because of this, the product may tend to balance, specially when the wind is blowing. There two possible solutions for the prototype. The first is to put more weight in the base. The second one is to put a counterweight in the opposite side of the mirror.   * The product is a bit heavy, specially the leadscrew motor. Because of this, the product may tend to balance, specially when the wind is blowing. There two possible solutions for the prototype. The first is to put more weight in the base. The second one is to put a counterweight in the opposite side of the mirror.
-  * Because the size of the breadboard, the box is a bit big. The size can not be changed, unless the electronics components are welded in a breadboard cut to size.+  * Because the size of the provided breadboard, the box is a bit big. There was the possibility of using a copper board, to solder on it the different electronic components. However, due to the lack of time to perform the tests, the team decided not to do it, avoiding also the risk of some error that might made the prototype not to work properly.
 ===== 8. Conclusions ===== ===== 8. Conclusions =====
  
Line 2162: Line 2193:
 ==== 8.1 Discussion ==== ==== 8.1 Discussion ====
  
-The goal of this project was to develop a Self-Oriented Solar Mirror (SOSM). The mirror must track the movement of the Sun and reflect the sunlight onto a predefined area. The creation of the sun tracking system was one of the main challenges for the team. The SOSM had to detect the Sun by itself with the aid of software that knows the path of the Sun. +The goal of this project was to develop a Self-Oriented Solar Mirror (SOSM). The mirror must track the movement of the Sun and reflect the sunlight onto a predefined area. The creation of the Sun tracking system was one of the main challenges for the team. The SOSM had to detect the Sun by itself with the aid of software that knows the path of the Sun.  
 + 
 +The Team is proud of what they accomplished, but if the Team had to do it again, the Team would do some things differently. First of all in the beginning there was a lot of indecision about the purpose of the mirror. If the Team had solved this earlier on, the Team would have had more time for the project development. Furthermore the purpose didn’t really need to be decided because the automatic orientation had to be the Team’s main focus. 
 + 
 +At the end the Team lacked a little bit of time, the prototype was not finished before the report had to be handed in and so the Team couldn’t do a 24 hour test. For the tests and results it would have been better to place the mirror with the software and see if it starts when the sun rises and moves during the day the way it suppose to and stops when the sun goes down. 
 +The Team also mentioned some risks in the beginning of the report; the Team came in touch with a lot of them. During the building of the prototype, some materials arrived late, some holes were made too big/small, and the Team probably went a little over budget although the price of the 3D-printed parts is unknown. 
 + 
 +On the other hand, the Team can certainly say that they achieved many things. Although the team members didn’t know each other, the team members managed the work of 5 people. Every team member did their part and if there was a disagreement, the Team managed to solve them quickly. In the beginning of the project the Team made some rules, one of them was that every decision needs a majority of four to pass, and everyone kept that promise. 
  
-The Team is proud of what they accomplished, but if the Team had to do it again, the Team would do some things differently.+The Team lowered their environmental impact by choosing renewable resources but also by choosing to send the product unassembled. By sending the product unassembled, less transport will be needed, but also less packaging. The product can also be made solar powered; this was unfortunately not within the budget.
  
-First of all in the beginning there was a lot of indecision about the purpose of the mirror. If the Team had solved this earlier on, the Team would +The Team designed a prototype and a control system; the Team built a moving structure, assembled the electrical components, developed the software and eventually finished the prototype. Although the mirror doesn’t move as smoothly as the Team had wanted to, the mirror moves the right way and thus works the way it should.
-  - Indecision in the early phase +
-  - No 24h test+
  
-On the other hand, the Team can certainly say that they achieved many things: 
-  - They managed the work of 5 people.  Every team member did their part and  if there was a disagreement, the Team managed to solve them quickly. In the beginning of the project the Team made some rules, one of them was that every decision needs a majority of four to pass.  
-  - Design a prototype and a control system. 
-  - Build a moving structure. 
-  - Assemble the electrical components 
-  - Develop the software. 
-  - Finish the prototype. 
 ==== 8.2 Future Development ====   ==== 8.2 Future Development ====  
 Working within the time and budget constraints of the EPS meant that the team focused on creating a proof-of-concept SOSM for domestic use while considering the features that the final commercial SOSM would have. One such feature would be the ability for the user to update the mirror’s location using buttons on the device rather than having the device pre-set to one location only, without the possibility of editing the location easily. The team also wanted the device to be more sustainable – to be powered by a battery charged by a small solar cell instead of being powered by the mains supply. The commercial product would also have a liquid crystal display (LCD) to provide the user with information on the status of the mirror. The final product would also possibly have a larger mirror surface made from glass. Working within the time and budget constraints of the EPS meant that the team focused on creating a proof-of-concept SOSM for domestic use while considering the features that the final commercial SOSM would have. One such feature would be the ability for the user to update the mirror’s location using buttons on the device rather than having the device pre-set to one location only, without the possibility of editing the location easily. The team also wanted the device to be more sustainable – to be powered by a battery charged by a small solar cell instead of being powered by the mains supply. The commercial product would also have a liquid crystal display (LCD) to provide the user with information on the status of the mirror. The final product would also possibly have a larger mirror surface made from glass.
Line 2194: Line 2223:
 **Margot Gutscoven: ** // EPS thought me to work in group with people I barely knew. You should stay positive and give them the benefit of the doubt. Also that in a project you have to think of more then just the obvious technical aspect, you have to think of marketing, project management, the ethics, etc. It also brought me out of my comfort zone of construction and showed me a little bit of programming, which in a way I find unfortunate, because I didn't always feel helpful. Nevertheless, I am glad I joined this program, I definitely made new friends, great memories and learned new things. // **Margot Gutscoven: ** // EPS thought me to work in group with people I barely knew. You should stay positive and give them the benefit of the doubt. Also that in a project you have to think of more then just the obvious technical aspect, you have to think of marketing, project management, the ethics, etc. It also brought me out of my comfort zone of construction and showed me a little bit of programming, which in a way I find unfortunate, because I didn't always feel helpful. Nevertheless, I am glad I joined this program, I definitely made new friends, great memories and learned new things. //
  
-**Raymond Quinn:**+**Raymond Quinn:** //I found the EPS a greatly rewarding experience. The opportunity to enhance my team work, communication and interpersonal skills in an international environment will prove invaluable. EPS also forced me to think about the less technical aspects of engineering project work – Ethics, Sustainability and Marketing – issues that I don’t often thoroughly consider during project work. It was also rewarding to take on board the ideas of others, as often decisions I disagreed about or was unsure about turned out to be good ideas after a group discussion. My only disappointment during an enjoyable semester was that I found it difficult to apply my knowledge of power engineering to the project but this allowed me to take on other unfamiliar roles and also to learn more about electronics and computer science.//
 ===== 9. Appendices ===== ===== 9. Appendices =====
  
Line 2340: Line 2369:
 ==== 9.2. Drawings ==== ==== 9.2. Drawings ====
  
-{{ ::eps_t3_1617_assembly_drawings.pdf |}} +{{ ::eps_t3_1617_assembly_drawings.pdf | }}
  
-{{ :eps_t3_1617_components_drawings.pdf |}}+{{ ::eps_t3_1617_components_drawings.pdf |}}
  
 ===== 10. Bibliography ===== ===== 10. Bibliography =====

Trace:

QR Code
QR Code report (generated for current page)