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MightyMoe
MightyMoe
@mightymoe
Member P&R, Founder
Joined: September 22, 2010 9:13 am
Last seen: October 15, 2026 6:43 am
Topics: 1006 / Replies: 9714
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RE: Removing Geoid for Machine control. (TRIMBLE)

@scrass You should get the xyz from the surveyor and metadata to allow you to calculate LLH. For instance if they are on state plane then they shou...

3 years ago
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RE: Removing Geoid for Machine control. (TRIMBLE)

@fugarewe When the job is set-up select the proper projection such as State plane zone xxxx NAD 83 (Conus). At that point enter in the LLH from wha...

3 years ago
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RE: Autonomous Site Layout - 4wd Robot

@fairbanksls No staking, and no more operators; auto construction machinery is the next step. I don't think it's far off.

3 years ago
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RE: Autonomous Site Layout - 4wd Robot

Maybe it should drive the grader.

3 years ago
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RE: Drafting with non-standard scales?

Greatest scale ever!!!! 1"=1320'

3 years ago
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RE: Where is the north line of Tax Lot 2700?

There are probably as many rules controlling the sale of small parcels as there are stars in the sky. To answer the question of how it's possible to...

3 years ago
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RE: Astronomic North and Computer/Online Programs

@john-hamilton That's part of it, but the assumption is that the record is perfect (yet only to one minute) so cardinal equivalency will be calculat...

3 years ago
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RE: Astronomic North and Computer/Online Programs

The bigger question is how will this apply to a double prorate? Even if there 10 seconds to deal with and a huge distance like 100', that's only .005'...

3 years ago
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RE: And this week's pro tip is...

Perfect, works great just like you're showing

3 years ago
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RE: Astronomic North and Computer/Online Programs

@mightymoe Here's why I hate DEFLEC##, I forget which way to apply the correction (just a sample): Output from DEFLEC18 Station Name latit...

3 years ago
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RE: Astronomic North and Computer/Online Programs

The numbers that are used for LaPlace corrections were useful to drill down the calculations on long traverses. We could obtain them from the USGS off...

3 years ago
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RE: Astronomic North and Computer/Online Programs

Use DEFLEC18 from the NGS, I believe you will see some numbers in single seconds of deflection. Probably isn't going to mean much. You can get the r...

3 years ago
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RE: Astronomic North and Computer/Online Programs

TBC will give you geodetic north from state plane. Unless you've got some serious distances from an intersection point I don't see laplace and astrono...

3 years ago
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RE: Removing Geoid for Machine control. (TRIMBLE)

@scrass I did mine using a DOT project scaled to ground using their Project Adjustment Factor. I matched the Global LLH to the Surface Grid Coordina...

3 years ago
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RE: Parking feeding frenzy

There were cones, a guy with a safety vest, it's near an event, they figured you're a parking attendant. They drive over the cones, that's bad form by...

3 years ago
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RE: Flat Earthers at it again....

That made me think of all those old traverses I used to run, calculating the C&R by hand for each distance measurement. I could usually just write...

4 years ago
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RE: Favorite found monument.

@holy-cow I've had it happen a couple of times. Magnetic properties can be beaten out of rebar. It's probably good to check and make sure they still...

4 years ago
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4 years ago
Replies: 0
Views: 768
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