Elevating Tripod

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pfirmsto
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Elevating Tripod

Post by pfirmsto »

Arrives in 2 days, 3.6m tall fully extended, 11kg.
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pfirmsto
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Re: Elevating Tripod

Post by pfirmsto »

pfirmsto wrote: Mon May 06, 2024 5:43 am Arrives in 2 days, 3.6m tall fully extended, 11kg.
In house design, prototype, after we couldn't find an existing elevating tripod on the market that was stable, looking forward to testing it.
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Re: Elevating Tripod

Post by Ioannis »

Why not to buy an elevated from NEDO? Is high quality and also inverted!
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Re: Elevating Tripod

Post by MalteHC »

cool, looking forward to hear your results.
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Re: Elevating Tripod

Post by pfirmsto »

Ioannis wrote: Mon May 06, 2024 1:09 pm Why not to buy an elevated from NEDO? Is high quality and also inverted!
Existing designs didn't meet our needs for stability, and they aren't easy to move with the scanner sitting on top, this tripod can be picked up and walked to the next position similar to a typical carbon fibre tripod, you can also stand underneath out of the scan. Not that I will discourage you from purchasing one if it suits your application, I'm sure it would be fine for short range laser scans (most popular laser scanners are only around 20 arcseconds accurate), but we need it for long range scans and better ground coverage, we use 1 arcsecond total stations, 6 arcsecond laser scanners and dual grade lasers with 0.4 arcsecond increments.

https://www.dropbox.com/scl/fi/ly5bdqti ... 5j5wl&dl=0

We also want to use it for setting a robotic total station or precision dual grade laser up high, most refraction occurs within the first 3m of the ground, so if our instrument can be placed up high, we can reduce refraction.

It also has a 3.5" thread for metrology, but I'm not sure it will be stable enough at full height for metrology, all joints can be adjusted to close clearance. Carbon fibre does have an expansion coefficient close to zero, so it could potentially be very stable.
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Re: Elevating Tripod

Post by pfirmsto »

MalteHC wrote: Mon May 06, 2024 1:38 pm cool, looking forward to hear your results.
Ok, I don't know how to rotate the images correctly, it's light, compact, and so far appears very rigid and easy to erect, there are some small issues that we'll need to address, there are no holes in the small ball joints to rotate them, the shoulder pad to carry the tripod and case for check in luggage is missing.
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Last edited by pfirmsto on Tue May 07, 2024 7:56 am, edited 1 time in total.
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Re: Elevating Tripod

Post by pfirmsto »

It's relatively easy to level, prior to elevating the top section, level the bottom section, then elevate the top section and adjust the upper legs to level the top.
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Re: Elevating Tripod

Post by Lowa »

who makes this tripod? I've never seen him around. Can we have some more information?
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Re: Elevating Tripod

Post by pfirmsto »

Lowa wrote: Sun May 26, 2024 4:45 pm who makes this tripod? I've never seen him around. Can we have some more information?
It's an in house design we're working on. So far during testing it remains within 20 arcseconds of level, however we are planning on refining the design, so it is less than 10, or closer to that which a quality timber survey tripod provides. Currently, stability is similar to a quality fibreglass survey tripod.
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