As-Built Workflow

As-Built Workflow

Anonymous
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Message 1 of 8

As-Built Workflow

Anonymous
Not applicable

Hello,

     I produce As-built drawings for Contractors as a service, and have been steadily gaining customers, which is nice. My typical workflow involves going to the property with a handheld laser measure, and taking involved videos documenting details and measurements. My issue is, I need to find out a way, or if it truly is a possibility, to start measuring site conditions using 3d scanners and associated software. I use ACA, so I need to know what system is best for my singular need. 

     Along the entire footprint of a house, I consistently come up with small though frustratingly extant discrepancies between floors and have read that laser scanners have a very small margin of error. I definitely need to incorporate this technology. Should I be using Recap or some other purpose built software?

 

Thank you very much

 

Gary

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Message 2 of 8

Anonymous
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Hi Gary,

have a quick google search for some scanner resellers. They should be able to answer your questions regarding scanners. You will be looking at something like the Leica scanstation P20 or P30, Faro x120 or x130 or the Z&F equivalent. there are other brands and they all do similar things so do your homework. I settled on a Leica scanstation P30 and Leica cyclone for doing more or less exactly what you are doing.

As for the software it will depend on what you want to do with the finished product. I am a big believer in using the software that "comes" with the scanner for registering the scans as the software will be designed specifically to work with the scanner and therefore will work the best with the scan data. But there are plenty of people that miss match scanners and software for lots of reasons. While recap pro and 360 will let you register the scans at this stage (as far as i know) it has no way of letting you know how accurate that registration is. Which is a bad thing if you have messed up the registration process. You typically won't know until things get to site and don't fit unless you can see the bad result in the point cloud.

Some of the other benifits of the manufacturer's software is they often have functions to extract 3D solids, meshes and planes from the clouds. But for working in autodesk products the free version of Recap is fine.

Hope that helps a bit.
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Message 3 of 8

vidanom
Autodesk
Autodesk

That sounds right.

 

You can also check these tutorial videos from our channel to see what you can expect from the software and how it works.

ReCap now works natively with all the Faro Focus scanners 120,130 or 330 models, Leica P16, Z+F 5010c... which means data from these devices can go straight into ReCap that later can be used in other Autodesk products. ReCap can also bring the data directly from other scanners too but without the color. So if you require the color you would need to first open and export the data from their native software.

 

At the end these are all the scanning file formats that ReCap can read:

 

Import Scans.jpg

 

Make sure to also check the Scan-to-Mesh feature and Auto Registration.

 

Mitko

 

 

 

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Message 4 of 8

Anonymous
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Thanks for your responses guys, I appreciate it very much.

 

I have several follow up questions after online research and contact with Faro. My company is only starting out, so an investment on the order of 40k isn't within my capabilities yet, but I still need to improve my workflow and produce a better product. What about the capabilities of Recap's photo to 3d service? 

 

Would any of the various data sets created by this process be useable in AutoCAD Architecture to verify my model from an exterior point of view?

That is, to verify all the exterior points, so that I could then trace these in ACA and then rely on the manually gathered interior measurements to fill the resulting void with interior walls and such.

 

I can handle investing 2-3k in a Phantom 4 and it's needed components and software, buy Recap 360 fly, and if the accuracy is good to around an inch over the size of a residence, that would be well worth it now, when I have As builts piling up in front of me.

 

Also, what is to stop someone from using one of the less expensive tabletop types of laser scanners, setting it in each room, and just merging the outputs later to trace over. All I need is walls, doors, windows, ceilings, and floors. I realize this is a piecemeal fashion, but I need to make progress now, and manual measurement is by it's nature deficient.

 

Thank you

 

Gary

 

Gary

 

 

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Message 5 of 8

Anonymous
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I have a folow up question for you guys as well. What about a product such as the Leica Disto S910 for creation of the floorplans themselves. The P2P technology would provide me with the trace points needed to lay out the floorplan would it not?

 

Thanks

 

Gary

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Message 6 of 8

Anonymous
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@Anonymous wrote:

Thanks for your responses guys, I appreciate it very much.

I have several follow up questions after online research and contact with Faro. My company is only starting out, so an investment on the order of 40k isn't within my capabilities yet, but I still need to improve my workflow and produce a better product. 


Yes Terrestrial scanners are quite expensive and the assocciated software can make Autodesk products look like bargin bin software when comparing price only. so make sure you look into it in great depth. also $40k sounds like the price of the scanner only. you will then also need to get tripods and targets as well as the registration software etc. etc. etc.. most of the time to get into terrestrial scanning you will be looking in the order of around $100k when all things are said and done. this might be in Australian dollars only though, but ask about what else you need to do the job and not just the scanner.

 


@Anonymous wrote:
What about the capabilities of Recap's photo to 3d service? 

Would any of the various data sets created by this process be useable in AutoCAD Architecture to verify my model from an exterior point of view?

That is, to verify all the exterior points, so that I could then trace these in ACA and then rely on the manually gathered interior measurements to fill the resulting void with interior walls and such.


 I don't specifcally use these services, but i have been doing a lot of research into it as i think this will be "the next big thing". what i have found is that due to the fact it is so new the software isn't quite there yet for the kind of thing you want to be doing with it. it is still very hit and miss and the accuracy isn't quite there just yet. while great results can be found, i think they are the exception and not the normal just yet. also the work that goees into getting these results and the learning curve to get there would make any gains you would get from it minimal at the start and you may even find not worth it in the long run. that is across the board too, not just autodesk's offerings. but again keep looking into it, i might not have found the right thing yet. also keep a close eye on it as the tech is improving every day and it won't be long before it is "there".

 


Candarco wrote: 

I can handle investing 2-3k in a Phantom 4 and it's needed components and software, buy Recap 360 fly, and if the accuracy is good to around an inch over the size of a residence, that would be well worth it now, when I have As builts piling up in front of me. 


as above. also there is no "cheap" way to get into this when dimensional accuracy is involved. you have to spend the money to get the results. if you need fast results and you don't have the moeny to invest in the hardware and software, maybe consider spending some money on getting a scan of one of your jobs done by a contractor and see what it is actually like to work with the point cloud data first. there is a chance that it might be over kill for what you are doing. spending a few hundred to a few thousand on one job might be better than spending 100k on scanning equipment and software to find out that it is still to slow for what you are trying to do with it.

 


@Anonymous wrote:

 

Also, what is to stop someone from using one of the less expensive tabletop types of laser scanners, setting it in each room, and just merging the outputs later to trace over. All I need is walls, doors, windows, ceilings, and floors. I realize this is a piecemeal fashion, but I need to make progress now, and manual measurement is by it's nature deficient. 


the thing stopping this is basically accuracy and time. if something like this worked, everyone would be doing it. as stated above there is no cheap way to get into this. it's all or nothing really.

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Message 7 of 8

Anonymous
Not applicable

@Anonymous wrote:

I have a folow up question for you guys as well. What about a product such as the Leica Disto S910 for creation of the floorplans themselves. The P2P technology would provide me with the trace points needed to lay out the floorplan would it not?

 

Thanks

 

Gary


i have a Leica 810 and i highly recommend it. i haven't used it enough to be able to comment on the full fuctionality of it, but i love the capabilities. this might be a cheap solution to your immediate issues. they are a great tool. 

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Message 8 of 8

kennyj
Collaborator
Collaborator

You can rent scanners and often find them being sold as refurbished, used, etc.

 

Just for fun (and a throat punch from Autodesk) Google 'Sketchup Photo Match'.  I've used this for creating quick exterior models that are then imported into Revit that will give you the doors and windows and be to scale...  I would assume you could import to ACA, too...

 

But laser scanning is a good skillset to have and once you get the scan planning and registration down, you will be able to blow through those as-builts.  It is not the same as doing as-built measurements, though, so plan on a learning curve.

 

You will still spend a lot of time on site (set up and waiting for scans) but you will come away with a lot more data than before and have multiple references to double check info (plus most scanners will take photos during the scan process).  Plan on using the scan as an overlay, too, this way your file sizes stay small (you can check for alignment, but work on another file to actually do the work).

 

Awesome business model; best of luck!

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