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  1. A

    Possible or not?

    Hi All, I've posted this before but thought it might be an idea to try again. Would it be possible to project a 1 metre grid onto a concrete floor covering an area 100 metres by 80 metres with a maximum tolerance of 5mm? Many thanks in advance.
  2. A

    Pie in the sky?

    Thanks so much for the replies. I can't say too much but I am tendering for a project in a couple of years which requires me to drill a lot of holes. I have plenty of time to do the drilling but I have virtually no time to mark the positions of the holes. If I can work from a projected 1m...
  3. A

    Pie in the sky?

    Hi All, This is probably ridiculous but is there a system that can project a 1 metre interval grid on to a concrete floor from a height of 15 metres over an area 100m by 200m with an margin of error of less than 5mm. I'll get what I deserve no doubt but thanks anyway.


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