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Sat Nav question

Discussion in 'General Discussion' started by brucemillar, Dec 7, 2016.

  1. brucemillar

    brucemillar Hardcore MB Enthusiast

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    Folks Can somebody help me please. On Mercedes Comand Systems you can see that the depth of the actual system caters for the installation of the gears that scroll the map up and down - left and right etc. How do Garmin and Tom Tom manage to hide all their gearing but still get their maps to scroll?
     
  2. GordonTarling

    GordonTarling Hardcore MB Enthusiast

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    Micro-miniature engineering - some of the gears are smaller than those in your digital watch.
     
  3. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    Well I think it's brilliant. Not once, have I had a map tear or get jammed. Admittedly I am only using the UK map so I assume that this takes up less space on the rollers than the larger European maps etc? The way it can change maps seamlessly from the daytime map to the nightime map, is just astonishing. No creasing, tearing ripping. It just works.....and all of this is in such a small space.
     
  4. Druk

    Druk Administrator Staff Member

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    They use special map paper Bruce which has a very thin coating of tallow for lubrication. Research by the Milk Marketing Board has shown that tallow from Aberdeen Angus bulls has the best internal wind-up qualities.




    .
     
    Last edited: Dec 7, 2016
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  5. markjay

    markjay Hardcore MB Enthusiast

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    Correct. I use a bit of engine oil to lube the gears every now then, otherwise they start to squeak.
     
  6. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    Did you say "tallow"? You do realise that I am veggie (I am not making this up). Thank god that the actual screen means that my fingers will not come into contact with the paper.
     
    Last edited by a moderator: Dec 7, 2016
  7. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    Ah. So that explains the small hole in the side of the unit then. I wondered how you got the oil in.
     
  8. Druk

    Druk Administrator Staff Member

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    This is a common misconception. Touch sensitive glass is tallow permeable to allow for occasional frontal replenishment.
     
  9. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    I have now elected to wear my forensic burglary gloves when in the car.
     
  10. Yugguy

    Yugguy Hardcore MB Enthusiast

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    Tiny little men, held against their will.
     
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  11. BTB 500

    BTB 500 Hardcore MB Enthusiast

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    It's a common misconception that the map moves around. In fact the COMAND system is far more sophisticated. A large map is mounted flat under the floor of the car, and a moving camera slides left/right & forward/backwards over it. What you see on the screen is the output from this camera. The maps are stored on rollers (like the number/destination display on a bus), and can be switched almost instantly. That's how the day/night change is achieved.
     
  12. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    Would that be why my map freezes in the North Sea when I park over a puddle?
     
  13. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    ....an issue that I do have with Comand/Mercedes.. Why did they not make their cars wider to accommodate a wider box, to allow for the wider/longer 6 & 7 digit Post Codes? Or they could have used smaller buttons?
     
  14. Druk

    Druk Administrator Staff Member

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    The car floorpans are plenty wide enough but they make the map pages smaller to allow for the inner sills rusting. Can't have brown stains on the maps :eek:
     
  15. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    I once mistook a bit of poo on a map for Sittingbourne. Then realised it wasn't a mistake !!!
     
  16. Ted

    Ted Hardcore MB Enthusiast

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    I think that was Staines. :)
     
  17. markjay

    markjay Hardcore MB Enthusiast

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    No! Don't squirt oil through that hole or you'll find that the map skids out of control.

    Instead, the oil should be dripped into the SD Card slot.

    If you don't have an SD Card slot, you can make one, Google 'how to add an earphone jack to iPhone7' - it's the same principle.
     
  18. davidjpowell

    davidjpowell Hardcore MB Enthusiast

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    huh.. Have the inmates escaped again? :)
     
  19. OP
    OP
    brucemillar

    brucemillar Hardcore MB Enthusiast

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    I do not have a Sexual Disease at least not that I am aware of? How do I get the card slot without the disease?
     
  20. markjay

    markjay Hardcore MB Enthusiast

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    You can't - you usually get the disease from the slot.
     
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