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Engineering project 2013

2

Comments

  • #52
    sailordog13
    Registered Users Posts: 90 ✭✭sailordog13


    From reading the brief, I don't believe it would breach the guidelines by using an external transformer to supply your 9V, freeing up valuable space.

    SD13


  • #53
    EoinLoook
    Registered Users Posts: 2 ✭EoinLoook


    DMC1230009 wrote: »
    That would be good but how could you harnass it to use in the project?


    I'm thinking of putting the fan in a tube and then connecting that by string to a motor and spool that can lower it up and down. That motor would be on a trolley that will move on one axis across one side of the project.


  • #54
    iFreeley
    Registered Users Posts: 73 ✭✭iFreeley


    How's everyone else gettin on with the project?


  • #55
    chloe04
    Registered Users Posts: 9 ✭chloe04


    still havent started, totally clueless


  • #56
    jamo2oo9
    Registered Users, Registered Users 2 Posts: 5,780 ✭✭✭jamo2oo9


    Have the parts nearly finished and ready for assembly. Aiming to get the structure finished by Christmas and then start the electronics and tidying it up in the New Year.

    It's not a difficult project if you do the research and investigation. Want the A's? Get working lad!


  • #57
    iFreeley
    Registered Users Posts: 73 ✭✭iFreeley


    You gonna use a joystick for the x and y axis? or just use 2 seperate 2 way switches?


  • #58
    CWF
    Registered Users, Registered Users 2 Posts: 1,066 ✭✭✭CWF


    jamo2oo9 wrote: »
    Have the parts nearly finished and ready for assembly. Aiming to get the structure finished by Christmas and then start the electronics and tidying it up in the New Year.

    It's not a difficult project if you do the research and investigation. Want the A's? Get working lad!

    Hate you.


  • #59
    Daniel L
    Registered Users Posts: 73 ✭✭Daniel L


    Does any1 have any good ideas on a grab mechanism? i have the manouvers of the crane pretty much down its just grabbing that table tennis ball is the hardest part.


  • #60
    jamo2oo9
    Registered Users, Registered Users 2 Posts: 5,780 ✭✭✭jamo2oo9


    CWF wrote: »
    Hate you.
    Hard work pays it off!
    Daniel L wrote: »
    Does any1 have any good ideas on a grab mechanism? i have the manouvers of the crane pretty much down its just grabbing that table tennis ball is the hardest part.

    Have a look at the grab mechanisms used by cranes in scrapyards. That will help you a lot. My Engineering teacher said that the more you study how it opens and closes its jaws, the better the idea you will have for your design.

    Mine's done from mind, really simple. Requires no motors to grab or release the table tennis ball. Does require a little bit of complex drawings on the plastic sheeting. Just think outside the box. :)


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  • #61
    Daniel L
    Registered Users Posts: 73 ✭✭Daniel L


    yeh i have done that :) its the timing that really puts us under pressure because id like to work on a design that i know how to make instead of 1 the teacher gives us and your there goin how do we do this :s thanks anyway, :)


  • #62
    MrBigPauL
    Registered Users Posts: 3 ✭MrBigPauL


    spam link

    Take a look at my project nearly finished nw just need to wire it up and get it polished


  • #63
    jamo2oo9
    Registered Users, Registered Users 2 Posts: 5,780 ✭✭✭jamo2oo9


    MrBigPauL wrote: »
    spam link
    Take a look at my project nearly finished nw just need to wire it up and get it polished

    A hoover? You've exceeded the maximum stated dimensions for the project so you lose a few marks...


  • #64
    Daniel L
    Registered Users Posts: 73 ✭✭Daniel L


    hah a hoover :L im still working on my design the mesurements are tricky :s! do you make all the pieces first? then put it together and if it works, take them all apart again then polish each piece and put bak together again? im confused its my second year doing engineering not very keen on the whole project


  • #65
    jamo2oo9
    Registered Users, Registered Users 2 Posts: 5,780 ✭✭✭jamo2oo9


    Daniel L wrote: »
    hah a hoover :L im still working on my design the mesurements are tricky :s! do you make all the pieces first? then put it together and if it works, take them all apart again then polish each piece and put bak together again? im confused its my second year doing engineering not very keen on the whole project

    Do it bit by bit like for the structure, just make the bars, assemble it and see if it suits your criteria, if so, then move on to the next part of the project and repeat.


  • #66
    Colinoneill
    Closed Accounts Posts: 88 ✭✭Colinoneill


    Any one else's powered by Stirling engine?


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  • #67
    MrBigPauL
    Registered Users Posts: 3 ✭MrBigPauL


    just after fitting the engine there shes flying, must polish it nw so i get more marks and must get a gallon of diesel 2 for it ,she light enough on deisel 2


  • #68
    typical username
    Registered Users Posts: 11 ✭typical username


    Hey :)
    I was told by my teacher who isn't a very trustworthy source of information...that the Engineering project can't exceed 350mm on ANY individual part.
    This is what the brief says:
    "Presentation of the completed model should ensure that:
    (b) The longest dimension of the model does not exceed 350 mm".

    There are parts I have that are technically about 400mm+ but they've been bent on a stripheater so the overall dimension still doesn't exceed 350mm.

    So my question is, can individual parts with bends exceed 350mm? Thanks.


  • #69
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,263 CMod ✭✭✭✭spurious


    (b) The longest dimension of the model does not exceed 350 mm

    No matter what shape your part is, could it fit in a box with a 350mm side?


  • #70
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    typical username wrote: »
    Hey :)
    I was told by my teacher who isn't a very trustworthy source of information...that the Engineering project can't exceed 350mm on ANY individual part.
    This is what the brief says:
    "Presentation of the completed model should ensure that:
    (b) The longest dimension of the model does not exceed 350 mm".

    There are parts I have that are technically about 400mm+ but they've been bent on a stripheater so the overall dimension still doesn't exceed 350mm.

    So my question is, can individual parts with bends exceed 350mm? Thanks.
    ... Send a picture of your piece :)


  • #71
    typical username
    Registered Users Posts: 11 ✭typical username


    Yes, of course!


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  • #72
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,263 CMod ✭✭✭✭spurious


    MrCraigButler wrote: »
    ... Send a picture of your piece :)

    Do not post, or ask others to post pictures of exam work


  • #73
    Bartek664
    Registered Users Posts: 26 ✭Bartek664


    I wish my teacher was so helpfull and help me with my project ! Nearly february and still havent done a thing . I wanted to use 3 fingers claw like the one they use on scrap yard but teacher said its not possible to make it open and close . Any ideas how can i make it close and open ?


  • #74
    Lad95
    Registered Users Posts: 5 ✭Lad95


    does anyone have any idea's to knock the ping pong ball out of pvc cylinder, it picks up the ball but i need to knock it out into the scoring zone??


  • #75
    Supermensch
    Registered Users, Registered Users 2 Posts: 270 ✭✭Supermensch


    Lad95 wrote: »
    does anyone have any idea's to knock the ping pong ball out of pvc cylinder, it picks up the ball but i need to knock it out into the scoring zone??

    Have you thought about using a linear actuator?


  • #76
    Niiall
    Closed Accounts Posts: 17 ✭Niiall


    Right, calling all engineering students. I've come to a brick wall with the claw. What is everyone doing?? I have the bulk of the project done but just have no idea how im going to approach even beginning to build a claw, or a vacuum of some sort. Any ideas, or what are you all doing?


  • #77
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    Niiall wrote: »
    Right, calling all engineering students. I've come to a brick wall with the claw. What is everyone doing?? I have the bulk of the project done but just have no idea how im going to approach even beginning to build a claw, or a vacuum of some sort. Any ideas, or what are you all doing?
    Mine is literally a piece of metal bent into a v shape , when it drops the force of it grips the ball , to get the ball off lower it onto a pole then


  • #78
    Niiall
    Closed Accounts Posts: 17 ✭Niiall


    MrCraigButler wrote: »
    Mine is literally a piece of metal bent into a v shape , when it drops the force of it grips the ball , to get the ball off lower it onto a pole then

    How do you get the ball out of your v shape into the hole?


  • #79
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    drop it onto a poll , anyone do their Enhgineering pre yet ?


  • #80
    Niiall
    Closed Accounts Posts: 17 ✭Niiall


    MrCraigButler wrote: »
    drop it onto a poll , anyone do their Enhgineering pre yet ?

    Dont see how that would work, but ok. Yeah engineering mock was grand.


  • #81
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    Niiall wrote: »

    Dont see how that would work, but ok. Yeah engineering mock was grand.
    The ball is lowered and when it hits the poll it's gets pushed either back up into the pick up area or else rolls into the scoring zone , <snip>


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  • #82
    richard sharpacus
    Registered Users Posts: 1 ✭richard sharpacus


    i'm still confused about something. in the brief it says a lift grab or suction technique. so does that mean if i had the ball on a pedastel, and a swinging arm knocked it off to the platform below without grabbing hold of it, would that be alrite?


  • #83
    pjm10
    Registered Users Posts: 1 ✭pjm10


    richard sharpacus wrote: »
    i'm still confused about something. in the brief it says a lift grab or suction technique. so does that mean if i had the ball on a pedastel, and a swinging arm knocked it off to the platform below without grabbing hold of it, would that be alrite?
    Im thinking of doing something similar, not too sure if i am allowed to tho! my teacher isnt much help


  • #84
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,263 CMod ✭✭✭✭spurious


    pjm10 wrote: »
    Im thinking of doing something similar, not too sure if i am allowed to tho! my teacher isnt much help

    Is it using a lift, grab or suction technique?
    If so, then you can use it, if not, then you can't.


  • #85
    Niiall
    Closed Accounts Posts: 17 ✭Niiall


    Holy crap!! These projects have to be done by March 1st!! WHAT!??


  • #86
    Colinoneill
    Closed Accounts Posts: 88 ✭✭Colinoneill


    Wait what year is it? Seriously though you should be finished... You might aswell give up


  • #87
    Niiall
    Closed Accounts Posts: 17 ✭Niiall


    Finished? Pahaha, that's funny dude, and you seem like a charming guy! But let me know how you get on in June, looking forward to rubbing this one in your face :)


  • #88
    Daniel L
    Registered Users Posts: 73 ✭✭Daniel L


    im nearly done mine .. my design is basically a boom arm crane ... i have the hopper done for the rotating scoring sysytem and all i need to do now is make a brass runner for the ball to go back to its original point :)


  • #89
    Daniel L
    Registered Users Posts: 73 ✭✭Daniel L


    oh and the engineering mock was easy lads :) !


  • #90
    daz801
    Registered Users, Registered Users 2 Posts: 1,159 ✭✭✭daz801


    Great set of notes, including the sterling engine


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  • #91
    Colinoneill
    Closed Accounts Posts: 88 ✭✭Colinoneill


    Niiall wrote: »
    Finished? Pahaha, that's funny dude, and you seem like a charming guy! But let me know how you get on in June, looking forward to rubbing this one in your face :)

    Haha relax and learn to take a joke! I'm actually around 70% finished at the moment.


  • #92
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    Project is due Friday and i just got the thing moving and picking up the ball , its looking good enough. Only starting my brief know thought so i expect to not do well with that


  • #93
    daz801
    Registered Users, Registered Users 2 Posts: 1,159 ✭✭✭daz801


    MrCraigButler wrote: »
    Project is due Friday and i just got the thing moving and picking up the ball , its looking good enough. Only starting my brief know thought so i expect to not do well with that
    I probably will only finish my project on friday....:(


  • #94
    Copper_pipe
    Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe


    Long night ahead for me


  • #95
    markh1074
    Registered Users Posts: 5 ✭markh1074


    Nearly finished up, hopefully il get it done tomorrow! Worked it out yesterday that me and some other lads have spent over 100 hours outside of class working on this with our teaching! ****ing ridiculous, but I cant wait to get to play with it


  • #96
    daz801
    Registered Users, Registered Users 2 Posts: 1,159 ✭✭✭daz801


    So are we allowed to post photos after tomorrow?


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  • #97
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,263 CMod ✭✭✭✭spurious


    daz801 wrote: »
    So are we allowed to post photos after tomorrow?

    Not if you don't want some contact from the SEC. Once the date for appeals of LC grades is over, probably late August, then there is not a problem. Until then, they remain examination material.


  • #98
    MrCraigButler
    Banned (with Prison Access) Posts: 24 ✭MrCraigButler


    how long were peoples briefs ? :)


  • #99
    markh1074
    Registered Users Posts: 5 ✭markh1074


    mines looking to be between 30 and 40 pages, including all my diagrams and working drawings.


  • #100
    daz801
    Registered Users, Registered Users 2 Posts: 1,159 ✭✭✭daz801


    So we were told that the examiners are coming in to mark our projects tomorrow and that they will also be training in new examiners to mark the projects. This makes me a bit nervous, do you think this is likely to make them mark the project a bit easier or harder?


  • #101
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,263 CMod ✭✭✭✭spurious


    daz801 wrote: »
    So we were told that the examiners are coming in to mark our projects tomorrow and that they will also be training in new examiners to mark the projects. This makes me a bit nervous, do you think this is likely to make them mark the project a bit easier or harder?

    They will mark it exactly the same.
    Very odd that you were told any details of what is happening.


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