How good is scan to design?

I’m in the market for a new ipad. I don’t really need a pro except if I was going to use LIDAR so a larger, cheaper Air would suit me better.

I’m a cabinet maker so regularly measuring customers’ rooms. For those of you who use the scan to design function how accurate and useful do you find it. Is it error prone or reliable?

Many thanks

I’d watch this video - https://www.youtube.com/watch?v=_jdrfBS2FaE&pp=ygUXc2NhbiB0byBkZXNpZ24gc2tldGNodXA%3D

Personally I love it for getting quick measurements of spaces, but I wouldn’t use it for the kind of precision measuring you need to actual cabinet construction - you need down to probably the 1/8th or the 1/16th I’d imagine, and it doesn’t do that

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Thank you. That was very helpful. I suppose the big concern is how much Id trust it vs having to take measurements anyway.

Thanks

Tim

CNC Cab shop here, I dont think your ever going to get away from phsyical measures even if they are just at a calibration level for critical dimensions. Not sure what your work flow is but I would advise getting a blue tooth laser tape (we use Bosch but no clue as just what weve always used) and you can use Lidar to bulk in the site and then just snap all the critical measures with the BT laser. It eliminates all paper and pencil which is my route. No paper, no pencils, no (or as minimal as possible) tape measures. Those three tools cost so much time (profit) in that business that all you can do to eliminate them is money in the bank.

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Does the Bluetooth connection actually enter the numbers for you? I’ve used a Leica Disto for years, but I have to read the display and enter a number, and it usually take some thought and adjustment to simplify and idealize things to close and come together.

Yes, it log’s dimensions via app (phone). It doesnt dump them to software (that Im aware of, SU or otherwise).

I just try to eliminate paper/pencil/tape measures in the field and the shop any and everywhere possible. Penmanship, spilled coffee, rain, falls on the floor, lost, etc..

I’m also curious about the scan to design lidar capabilities, I understand it can capture a space well and give you various options in the structure of the model/data it produces.
But I’m curious if it is possible to limit the environment it is scanning and therefore pick up better detail, processing a lot of data in a small area as if it was less data in a larger area.

The specific use case I am thinking of is using it to scan a surface that has lots of raised parts and be able to get an acceptable representation of the multiple different sized objects.
Simply put, reading the complex matrix of different lead sizes on a stained glass window.
I imagine a proper 3d scanner could do this well, but is the ipad lidar capable of this sort of detail, perhaps without using the specific sketchup scan to design.

To follow on this, the app can insert the measurements over pictures too. As another ‘backup’ you can take those pictures with a 2ft level (or whatever you have that has a known measurement) bring them into SU and scale from there.

I used a drone a lot to get mesh and point clouds. I didn’t use the meshes much because they weren’t very accurate or easy to modify. The point clouds could be pretty accurate. But ‘pretty accurate’ is not the same as ‘exactly’. Great for landscape level of detail. Cabinets?

I’ve barely tried it out a couple time, so I’m no expert, but it seems to try and abstract a space into walls, floor, ceiling, doors, windows and cabinets, so I don’t think it captures surface irregularities well like a high end point cloud scanner.

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I guess my real question is, is the lidar itself capable of good 3d scanning rather than ‘room’ scanning?
So somewhat off topic.

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I did see a speaker at 3D Basecamp '22 (Vancouver) that used an iPhone with LIDAR to scan trees and then design and build tree houses in them. I have to find my notes again, but he used other software like Polycam (?) for the point clouds first.

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Even with the most accurate remote sensors, field work includes taking measurements for control and validation. When processing this type of data the software is going to have a place for the user to specify distances or control points that can then be used for a higher level of precision.

As a result of some of the really helpful answers on this thread I’ve revisited the Leica app having also owned a disto for ever but never bothered with the early app because it was a bit pointless.

This looks like it will do all I want at the accuracy I need and then give me a room plan I can import into SU.

Thanks for all the input

An intern of mine at Trimble did a capstone project combining a Trimble-scanned project with an iPhone scan, with the use case being: a construction company rented a scanner to scope a remodel, and now they need to rescan a small portion of the original scan area (due to changes, or a small part of the project being completed). Just use your iPhone to scan the small area, and integrate it into the original scan.

I thought it worked well, and he used Trimble Realworks to do the integration.