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Design tech (unit 6) - research paper watch

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    So I've got this 3 hour design exam in the summer for resistant materials and I've been given a form which says what I have to research:

    "Parents can find carrying shopping difficult when accompanied by young children."

    Investigate:
    • anthropometric data for children aged 0 to 5 years
    • anthropometric data of adults
    • wheels and bearings
    • braking systems
    • the properties of lightweight materials


    Anyone doing this as well? - found any good information on the net?, or if you've this type of exam in the past - any tips?
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    hey im doing this exam as well. My teacher moderates this exam so hes going to give us "hints" as to where to look. Everyone is going to use stuff off google so its best to go and find your own stuff from librarys. My coursework project was a library chair for a child (which i got 110/110 in!)so i already have the anthropodmetic data for children but its a little bit dodgy!
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    do you mind sharing your anthropodmetic data with us? thx :>
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    yeah but ill need to find it first. For the record it was slightly dodgy and i had to change parts. But ita very hard to find anthopodmetric data and the book in our td room got stolen :mad: Im going to email about a few universities that i got interviews for to see if they can help me.
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    cheers sticky, that would be a great help
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    it will be very helpful if ppl doing this exam can share all their information here
    :>
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    i found something on bearings
    http://science.howstuffworks.com/bearing3.htm
    don't know if it will be helpful?!
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    any use to you.....?
    ANTHROPOMETRICS LINK
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    very helpful!!!! do you have any research on wheels??? and i'm not too sure how to apply these researchs during the exam?
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    oh yea! also i'm have difficulties of researching the braking systenm of a shopping trolley!!! i'm from hong kong, in hk there are no braking system in shopping trolley !!!
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    please post!!!
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    The way im looking at breaking systems is the ones on airport trolleys. Dont forget that this R6 paper isnt a shopping trolley YET. It will more than likely be but there are loads of other applications for trolleys such as in an airport, DIY shops and granny trolleys, although all these need to be adapted for children as well. For breaking systems, look at how the breaks of a car or bike work. The car one is disk and drum breaks. Do the breaks have to be just mechanical? what about pneumatical (although not on the specification!) or hydraulics like break fluid (however the maintenance of the trolley then may be compromised!). Im not to sure about adding electronics to the brakes since would you not then have to draw up circuit diagrams??

    For the wheels, im going to use the ones off a pram since there alot more free moving than the ones on shopping trolleys
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    but i still don't get how to apply these research onto the "Analyse the design problem and develop a specification" heading. Actually , do we apply these reseach onto the design part?
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    oh and also it will be very nice if we can share our designs and discuss about it by scanning (maybe)? i will be posting some of my ideas in a couple of days :>
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    hey, so what does everyone think were going to be asked to design?
    we've just being talking to our teacher and it sounds rather complicated to design a shopping trolley to carry a kid as well.
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    well..i think the purpose will be a shopping trolley, which are safe and comfortable to sit on. Thus, focus more about the sitting?
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    nah im focusing on the actual pushing of the trolley, well thats if it is a trolley! the breaking system and wheels are vital in getting the marks and you need to have very detailed drawings of how they will fit together as you cant just say "oh i bought this component (wheel) and fitted it on". What i am thinking on is the maintenance of the trolley in the long term too. The wheels need to be removable and the components need to be cheap to buy to fix it. I think that the wheels need to be the same as the ones found in buggies as parents are going to be used to pushing them arnt they?? also breaking mechanisms, is there much point installing a complicated braking system when the end user is used to just pushing a toggle clamp on the breaks for a buggie? my opinion like! also my plan is not to over complicate the trolley like everyone else is going to do.Customers in supermarkets are used to simple trolleys, why do they need over complicated ones now, especially with children!??
    Everyone is going to have the same idea and that is a trolley, but how is it possible to make it different?? good luck to edexcel to try and decide who gets the better marks since its impossible to not design a trolley to meet the design brief!
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    gd point gd point...it will be great to see your designs?! and how you gonna develop it...
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    i have no idea as to how to develope it! i have an idea of it in my head but im trying to work out how the mechanisms will fit together atm! i only have sketchy drawings atm too but im sure ill be able to get them scanned in. material wise is going to have to be a light metal that can be welded. Any type of plastic just could not last in the long term! its a pity that aluminium cant be welded! it would be perfect! my modules start next wednesday so i dont think ill much time for td! we have yet to finish the course in td too!
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    Aluminium can be welded. You just need specialised equipment which i think you could justify if were going to be producing a lot of these trolleys.
 
 
 
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