Does that mean it was less ambiguous than a very ambiguous response would have been?noseall said:
OK. So what's the minimum width of river that would require "a greater measurement at the top of my columns than at the bottom"?
laser levels
- Thread starter hogster
- Start date
Sponsored Links
Softus said:
i haven't got a clue.
i would imagine it will apply only to suspension bridges, as these cover huge uninterrupted spans and use very tall columns. the differences are only in the realms of 20-50 mm between top and bottom measurements and are only relevant to engineer checks and gps.
a large bridge deck and superstructure can flex and wane as much as 2m. so i guess 50mm ain't gonna matter an awful lot.
as i said the checks are there to make sure the columns are perpendicular.
sorry Softus, i do enjoy chatting with you. 
Sponsored Links
Pretty useful, but as with many tools you get what you pay for. Cheap lasers don't last and aren't all that accurate - a builder's 1m level, however is generally pretty accurate and lasts for many years (my Stabila costs £70 these days and is approaching 25 years old).hogster said:
The answer is that with many machines you nail or screw a mounting plate onto the wall then hang the laser on that (at least that's how the Bosch I have works as do some of the Pacific Laser and Stabila models I've used, too) - so that does tend to mark the walls, although in a new kitchen or a new build that's hardly a problemhogster said:
. In general, though, I use my laser level on top of a tripod (in my case a Velbon AE photographic tripod I've had since my school days!). This allows me to draw a single horizontal datum line from which I measure up and down to get my other horizontals and drilling points, turned through 90 degrees I can also mark verticals in different places by swivelling the laser on the tripod's pan head. I doo however feel that a cross-hair laser would possibly be more useful for me in the sort of work I'm now doing.Scrit
Thermo said:thatll be another bit of kit in the van then!
by the way i made the 750 metres up....i havnt got a clue!
ooh you cheeky git. typical of an ex rozza not to lose his rhetorical skills.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
