Leica has branded Tri-max leg that they recommend for the scanners.
Mark Mayer, post: 399839, member: 424 wrote: 180 seems to be the number. It is unquestionably very fast. Way way faster than the Topcon PS I use, which was purchased just last year. I'm PO'd about that.
[MEDIA=youtube]WduRIcbsD1w[/MEDIA]
After what's been said here in the last couple days about Magnet I'm still not sure I'd be sold.
Holy smokes! That's fast! I used Magnet for a few days.....Granted I never gave it much of a chance, but I REALLY did not like it. I think it might be worse than Smartworx.....As background, I started with TDS survey pro and later migrated to Carlson....
John Putnam, post: 400048, member: 1188 wrote: Leica has branded Tri-max leg that they recommend for the scanners.
Not anymore they don't. They may have them, but for us they recommended the 120-9 and would not provide the Tri-Max. 5 years ago, yes, they provided the Tri-Max but not this year.
Mark Mayer, post: 399955, member: 424 wrote:
Leica has a white paper on tripod stability. It turns out that Leica tripods are the best (who'd have thunk it?)...
to be fair, leica employees did not write the test, so your suspicion about the results may be unwarranted. from the paper:
"This document is a summary and translation of the
Thesis named Genauigkeitsanalyse von
Vermessungsstativen und DreifÌ?ssen unter der Belastung
verschiedener Instrumente. The Thesis was conducted
during 2006 by Daniel Nindl of the Department Geodesy
Engineering, Technical University of Vienna, under guidance
of Mirko Wiebking of Leica Geosystems AG, Heerbrugg."
leica certainly make it available, as would any commercial company mentioned in a good light.
the longer version is available through FIG:
for balance:
http://www.lengemann.us/pdf/SEMO%20Analysis.pdf&apos ;"> http://www.lengemann.us/pdf/SEMO Analysis.pdf
it starts off:
"The following information presented in this report represents my personal, independent, analysis of the performance data for the Tri-Max Tripod and other similar tripods."
the 'results' of tests of unknown design are still advertised on websites today:
"Crain has now put the Tri-Max to the ultimate test, the ISO 12858-2-H. Not only did Crain test the Tri-Max, but they tested nine of the best selling tripods on the market. The results were gratifying; the Tri-Max was the only tripod that passed the test."
really? wow.
i should clarify - this statement:
"Crain has now put the Tri-Max to the ultimate test, the ISO 12858-2-H. Not only did Crain test the Tri-Max, but they tested nine of the best selling tripods on the market. The results were gratifying; the Tri-Max was the only tripod that passed the test."
may not be as a result of this paper:
http://www.lengemann.us/pdf/SEMO%20Analysis.pdf&apos ;"> http://www.lengemann.us/pdf/SEMO Analysis.pdf
the assumption is mine based on this paper being the only one i can find being linked to anywhere by Tri-Max sellers, and the author having been a process improvement consultant for Crain Enterprises.
Conrad, post: 400116, member: 6642 wrote: to be fair, leica employees did not write the test, so your suspicion about the results may be unwarranted. from the paper:
under guidance
of Mirko Wiebking of Leica Geosystems AG, Heerbrugg."
Sounds to me like they did.
Totalsurv, post: 400167, member: 8202 wrote: Sounds to me like they did.
sneaky jerks can't hide nothin from you eh? To think they could put it in plain sight like that!
Could you bring yourself to read the tri-max test? How legit did the tester and tests sound to you?
Hello,
During the past 6 years or so i have used both Crain Tri-Max and Leica 120-9 tripods daily. Last summer i noticed that trimax legs are alot more vulnerable to temperature changes than 120-9 legs.
15mins of direct sunlight warming trimax legs was enough to mess up orientation angle. 15-30mm hz error on a distance of 100 meters. And the legs were stationed on concrete. Tightened the clamp screws which had no effect, so i came into a conclusion that wooden 120-9 is more reliable than glassfibre trimax. This is clearly visible on electronic bubble too. It starts moving towards the sun with trimax legs. With 120-9 it stays pretty well on the middle, even in direct sunlight.
So now im using only wooden 120-9 legs with no problems.
Cant say anything about torsional rigidity. Hard to test.
Has anyone else been experiencing the same?
Grads&Meters, post: 400203, member: 12264 wrote:
Cant say anything about torsional rigidity. Hard to test.Has anyone else been experiencing the same?
Hello. I still see loss of azimuth when using the 120-9 in direct sunlight. 15" or so of Hz drift would not be unusual here in an hour or so. I think part of that is the sinking/compression of the legs if you put a 7kg total station on it. If you put the TS on the legs and then wait 15 mins or so before levelling and setting a BS, then orientation stability is good.
Torsional rigidity of the 120-9 is good. I can turn the instrument quite quickly by hand between targets when reading angles and the legs don't seem to get more than 1" out of shape. This is with the tripod set firmly in holes in concrete so it's a pretty good test of the tripod and tribrach. I can't speak about the tri max. Never used it, but it must be good. It's apparently the only tripod to pass the 12858-2-H test.