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Poor first impressions of Trimble S7

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(@fobos8)
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Hi Guys

My Trimble S7 arrived today and I'm not really impressed with what I've seen so far. The tripod is wobbly/flimsy but worst is that the tribrach has loads of play in it. If push the handle on the top of the machine with only slight pressure?ÿyou can see the screws on the tribrach lifting up.

A sturdy tripod and tribrach are basic requirements for the machine to read accurately. Thinking of sending it back.

Regards, Andrew

?ÿ

?ÿ

 
Posted : 05/12/2017 2:07 am
(@christ-lambrecht)
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We have always on site deliverance by the dealer, never had any problems!

Chr.

 
Posted : 05/12/2017 2:18 am
(@crid54)
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Get some Crain legs and Leica tribrachs. Every time we get a new Trimble instrument, the tribrach it comes with goes into the "junk box". It is disappointing to have an expensive piece of equipment come with junk accessories. The instruments are worth it, though.

 
Posted : 05/12/2017 5:50 am
(@fobos8)
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what worries me is that if the tribrach and tripod is so poor what is the total station and active prism like?

 
Posted : 05/12/2017 6:46 am
(@crid54)
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Can't speak for the S7, but our S6 is very dependable and well built. So is the Active Prism. The only issues?ÿare the crappy tribrach that came with the instrument and the shoulder straps on the gun case tend to break.

 
Posted : 05/12/2017 7:30 am
(@norman-oklahoma)
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As you say, having a good tribrach and tripod under your instrument is critical to collecting good data. But?ÿ I wonder why your impression of the S7 is poor when your?ÿ problems have nothing to do with the S7??ÿ

 
Posted : 05/12/2017 7:40 am
(@fobos8)
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Hi Norman -I guess its to do with being disappointed with first impressions. Like going into a expensive fine dining restaurant and the menu has coffee cup stains on it!

?ÿ

?ÿ

 
Posted : 05/12/2017 7:46 am
(@lee-d)
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If the tripod is junk why did you order a junk tripod? I've used nothing but Tri-Max with S6/S7/Vx/SX10 for the last 12 years and have never had a problem related to the tripod. The tripod has nothing to do with the S7 or the MT1000. My current tripod is a dual clamp Tri-Max.

 
Posted : 05/12/2017 2:38 pm
(@williwaw)
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Second the dual clamp Tri-Max. Bomb proof. (Figuratively, not literally)

If you bought this through the Trimble dealership they should know better than to supply a wonky tripod with that gun. The torque will play havoc with a lighter weight tripod.?ÿ?ÿOur S6 is a workhorse.

 
Posted : 05/12/2017 2:58 pm
(@fobos8)
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thanks for the replies. Its unfortunate that the package included a junk tripod and tribrach.

?ÿ

is the Tri-Max dual clamp the fibreglass one? Looks pretty good

 
Posted : 05/12/2017 3:30 pm
(@stephen-ward)
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To my knowledge, all Tri-Max's are fiberglass.?ÿ I have an older one that is built a bit lighter and only has the quick clamps.?ÿ The newer one was after Trimble bought Crain and it is heavier/stiffer and has dual clamps.?ÿ I believe that they still make a single clamp version.

It's a shame that a dealer would include a weak tripod in a package deal.?ÿ That's one reason I insist on test driving a rental rig with the same DC, trilpod, etc that I am looking to buy.

 
Posted : 05/12/2017 3:40 pm
(@conrad)
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Posted by: fobos8

Hi Guys

My Trimble S7 arrived today and I'm not really impressed with what I've seen so far. The tripod is wobbly/flimsy but worst is that the tribrach has loads of play in it. If push the handle on the top of the machine with only slight pressure?ÿyou can see the screws on the tribrach lifting up.

A sturdy tripod and tribrach are basic requirements for the machine to read accurately. Thinking of sending it back.

Regards, Andrew

?ÿ

?ÿ

so, you're sure the tribrach is defective? based on what?

that model (GeoDesy brand if I'm not mistaken) as supplied supplied with trimble instruments last time i checked, has a spring plate built into it, presumably to allow a little slack at the instrument/tripod interface when bumps and vibrations happen. They also have little brackets/plates over the base of each footscrew, held in by 2 screws, which ultimately limits the travel to a few mm.

the instrument can be rocked at each corner of the tribrach by a few mm until it stops hard against the limiting brackets/plates. does this describe what you are seeing?

?ÿ

 
Posted : 05/12/2017 3:45 pm
(@conrad)
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Posted by: crid54

...the tribrach it comes with goes into the "junk box". It is disappointing to have an expensive piece of equipment come with junk accessories. The instruments are worth it, though.

Would you take $50 for the junk equipment that you have rejected plus shipping to Australia?

 
Posted : 05/12/2017 9:35 pm
(@fobos8)
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the instrument can be rocked at each corner of the tribrach by a few mm until it stops hard against the limiting brackets/plates. does this describe what you are seeing?

yes Conrad - that is what I'm seeing. Are you saying its not a problem? Thing is you can move it with very light hand pressure on the top handle of the robot. Surely a good breeze will make it unstable. The Leica tribrach I have doesn't rock like this.

 
Posted : 05/12/2017 11:55 pm
(@conrad)
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Posted by: fobos8

the instrument can be rocked at each corner of the tribrach by a few mm until it stops hard against the limiting brackets/plates. does this describe what you are seeing?

yes Conrad - that is what I'm seeing. Are you saying its not a problem? Thing is you can move it with very light hand pressure on the top handle of the robot. Surely a good breeze will make it unstable. The Leica tribrach I have doesn't rock like this.

?ÿ

i don't know if a good breeze would move it, but set up the experiment and let me know how it goes.

at the top of the instrument handle you are at a large leverage advantage when fighting the sprung section of the tribrach. a small force there will be sufficient to induce the rocking. when leica was sourcing it's tribrachs from this same manufacturer they would behave exactly in this way. the modern leica tribrachs that resemble the wild GDF22 model will 'click' slightly but won't move as much.

you can (but don't) adjust the spring characteristics of these tribrachs by adjusting the 3 screws on the bottom side, and also by rotating the ring you can see by looking from above through the hole where the optical plummet assembly would be. but i don't think you'll change the tribrach's intended behaviours, of which i think the rocking is one.

or you could by a 'good' tribrach and post me your loose tribrach. i will pay you $50 plus shipping to australia.

 
Posted : 06/12/2017 3:31 am
(@trevillian)
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Posted by: fobos8

Hi Guys

My Trimble S7 arrived today and I'm not really impressed with what I've seen so far. The tripod is wobbly/flimsy but worst is that the tribrach has loads of play in it. If push the handle on the top of the machine with only slight pressure?ÿyou can see the screws on the tribrach lifting up.

A sturdy tripod and tribrach are basic requirements for the machine to read accurately. Thinking of sending it back.

Regards, Andrew

?ÿ

?ÿ

Hi Andrew,

I'm sorry to hear about your first experience with the Trimble S7.?ÿ I would like offer some assistance, if I may, from my position with Trimble.?ÿ ?ÿThe issue with the tribrach is concerning and does not seem to meet our normal quality.?ÿ Please reach out to me so we can investigate this problems in more detail.?ÿ

Regards,

Chris

 
Posted : 13/12/2017 4:43 pm