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Something jogged my memory earlier....
We've a job to start next week...a series of frames, each 3m ish square, but to a tolerance of +1.5mm/-0mm.
Made from 150 x 150 box section, so fairly easy to get right. Fine.
Needs to be set up with a tape measure (laser won't work in this instance and it cant be set out using a total station or EDM). How do we calibrate a tape measure? - The posh ones we have are Fisco and another top make that escapes me at the minute - good quality...but who says they are calibrated correctly?
What if the Fisco tapes came from the Friday afternoon batch....
We've a job to start next week...a series of frames, each 3m ish square, but to a tolerance of +1.5mm/-0mm.
Made from 150 x 150 box section, so fairly easy to get right. Fine.
Needs to be set up with a tape measure (laser won't work in this instance and it cant be set out using a total station or EDM). How do we calibrate a tape measure? - The posh ones we have are Fisco and another top make that escapes me at the minute - good quality...but who says they are calibrated correctly?
What if the Fisco tapes came from the Friday afternoon batch....