KTKArch

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About KTKArch

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    https://www.houzz.com/pro/arktk/ktk-architecture-wa-koning-designs-usa
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    http://www.ktkarchitecture.com/

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    PacNW Upstream from Seattle

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  1. KTKArch

    Point Cloud import is the future for As-built

    Hover doesn't appear to do inside dimensions. A point cloud file is measurable between any of its millions of points. And these measurements can be taken while in any "2D" or "3D" view because each point has x,y,z coordinate values. So the accuracy of your scanner contractor is important. Scans at inaccuracies greater than +/-1/2" will not be a good value. If the point scanner 'saw' the interior items you wish to measure, you can. And even answer esoteric things like: how far the bed is from a dresser or window... That chandelier hangs how far from the cathedral ceiling... The fence was how far from the corner of the house... the tree's caliper size, height, dripline... Was it a 3-3/4" crown molding or a 5" and what was its profile? How big was that owner's cat...
  2. KTKArch

    Point Cloud import is the future for As-built

    If you hire a scanning firm, you can bill them out with mark-up, make a profit and still be working on other projects while the whole house scan is being done. The same goes for the draftsperson/service you hire to 'trace' the point cloud into CA. So the scan and trace take minimal time from you for coordination of the team. Your client gets a thorough scan and as-built of their complete house for less than you can personally do in the same amount of time. And you complete more work in office raising your productivity on other projects as well. Is this more than you need to get the project drawings done? Very likely. Have you overperformed for your client at a lower cost? Most likely. Has it slowed you down or distracted you from your office's total production. Less than likely.
  3. KTKArch

    Point Cloud import is the future for As-built

    Hover is a good start point for an as-built. It is a true cad model and not a point cloud of course. It doesn't include any topography or landscaping. It offers little for interior remodel needs at this point. It also requires your time to go out and get the pictures unless your client can do it for you. I'm asking for the ability to pull a 3rd party point cloud file into CA so that a drafter can 'trace' in 3D using CA. And a true point cloud is measurable. Each and every point has an x,y,z coordinate so pulling a dimension from one point to another is as accurate as the service you hired. This will make 'tracing' very simple, swift and accurate.
  4. KTKArch

    Point Cloud import is the future for As-built

    You call out an interesting issue. The Point Cloud will definitely show the items that are out of whack. Your as-built will have to have some kind of key that describes how you are going to show what and where the wonky issues are. Until we get spline-based and out of plumb walls. But what you really have uncovered is where the issues are and how big a problem they might pose to your client. This way the client isn't 'surprised' by the contractor's change order because something isn't as assumed because the as-built was 'drawn w/ perfect walls'.
  5. KTKArch

    Point Cloud import is the future for As-built

    Hi Lew, Another project they presented was of a church's education building that they wanted to alter a few classrooms to get a dropoff counter installed. In 35 minutes the 3rd party $75K backpack scanner they hired was walked through and around the building. They paid $80 for the point cloud file and the entire 3000 sf building was documented. A few more hours and the entire building as-built was done in 3D CAD (Revit). The presenter said he 'runs away' from scans that are 1 or more inches out of wack, so resolution and experience is a must when you have scanning done. But small projects can be cost-effective if you manage it right and have the right tools. A CAD program that can pull in point clouds is definitely one of the right tools.
  6. KTKArch

    Point Cloud import is the future for As-built

    You should have seen these files. The scan picked up failing/bowed rafters/trusses. It's all in where you take the scanner. An odd space like the dropped ceiling would be easily found and investigated with eyes focused on all the specific/various discrepancies showing up. It will also find walls out of square much faster than hand measuring with. Until costs come down significantly we will always find a point where handwork will outperform technology. But that will diminish along with cost and familiarity. As the scan is doing the measurements faster, you are left with more time for discovery.
  7. KTKArch

    Point Cloud import is the future for As-built

    May 2019: The Pikes Peak Railroad Station complex was scanned in 3 days. CAD As-built was completed in about a week (two employees). It did take a quadcore computer at least 24 hours to compile the 600+ GB point cloud scan as there were a hundred plus scan locations. They now have a measurable photo record of these historical buildings. 1/2" max variance in accuracy. They hired the $250K scanner @ a "known friend's" deal of $2k per day, high cost, but you can't hand measure a 10+ acre site and multiple buildings in that time frame for that price. This final scan showed stone joints, sagged roofs, railroad tracks, trees, anything that was there at that time. In a photo-realistic file that looked much like a Chief 3D model. Just made up of billions of points where the 'paint' surface was on each object.
  8. KTKArch

    Point Cloud import is the future for As-built

    Resolution and accuracy is the key to point clouds. Those counter guys are skipping that part to keep files small or using inferior scanners. Whether its a pencil or a computer/laser it's only as good as the operator. In I.T. we called this "PEBKAC" Problem Exists Between Keyboard And Chair.
  9. KTKArch

    Point Cloud import is the future for As-built

    The example shown at the conference was of the entire railroad station complex for Pike's Peak. These were historical buildings and the system they used captured everything. All the as-built company needed was the building info so they could just put their Revit walls, floors, ceilings between the frames made by the points. Since an overlay photo was created with the point cloud scan it was easy to discern wall planes from 'clutter' but this is also possible without the photo. Then doors and windows can be made to look like the ones in the scan. Even historical moldings were captured and recreated by cutting the sections as needed. And everything in the point cloud is measurable at any view angle. The resolution of the scan showed the joint depths of the stone retaining walls. If you need to remove cats and desks just group select and delete. There is always enough wall left to define the as-built cad locations.
  10. So I just returned from a demonstration of current high tech and its use in the future of home design. I must say, Point Clouds from laser scans are the way to go. Sure the high end is 1/4 million $ scanners and drones/aircraft. But even a $75K backpack scanner at the right resolution will take a 6-hour site measure and office drafting time down to a 30-minute walkthrough/around and 1 - 2 hours in the office for 3D overlay. Can't put out $75K...hire it out and markup 3rd party's price for the walkthrough. You not only get the building but the topography as well. Fences, trees, and neighboring buildings will get picked up. Great for landscaping and the all-important tree schedule. You will be able to simply measure tree trunks at whatever height the local jurisdiction requires from the comfort of your desk. If you find any boundary markers. Put a recognizable 3D item over them to locate them in the point cloud. Want to verify the scale of the point cloud? Measure one or more items that you can verify later and scale as needed. Better resolutions reduce and eliminate this but dramatically increase your file size. So a good scan will be within a 1/2" of accuracy and you know those pesky double-thick interior walls you can't get to? Or that one that goes off at an angle or stairs that follow a curving wall. No guessing the radius or if there are multiple slopes on the roof. Its all in the point cloud at less than half the time and cost of hand measuring. Still can't 'see' it? Watch when the countertop installer measures up the next kitchen with one. The countertop fits like a glove after a simple scan is fed into the CNC machine. If the countertop installer can make it work we can too. So Chief Architect, when are you going to simplify importing point clouds into CA?
  11. KTKArch

    Exterior door swing & landings

    Wind vs Ground shake...WA has the same ground problem but once in a while an EF1 tornado will suck a perfectly good roof right off the top plate. The shearwalls are solid but with only 110 mph design winds that joint becomes liquid to tornadoes. Back on the main track. Sweden's codes require outswing doors. Better for weather and wind. Security? Their Locks and Hinges are great...but, they also require that anyone must have access to a toilet at any time, so there is also a second security door after the front powder room.
  12. KTKArch

    Printing Grid Lines

    Followed MarkMc's idea. Placed Polyline on 'level 38' in the background and made it very light blue. In grayscale, this color may not even print. On 11x17 sheet 2'x2' is a good grid size. 19-15 Bruett AB1 Floor 2 w grid.pdf
  13. KTKArch

    Creating A ADA sink cabinet

    The description you gave is not ADA compatible. Review ADA guidelines chapter 3 and especially sections 306 and 308. Hospitals will/must care about compliance. 34" Rim height max. 27" knee clearance for the first 8" of depth to 11" of depth at the toe kick setback which is 9" Above Finished Floor AFF. Then another 6" setback. Cabinet can then hang on wall or drop to floor. This toe clearance width has to be 30" clear centered on the sink/faucet no matter how wide the cabinet is. This is important when hiding the clearances behind operable doors in kitchens etc. You have to use 32" minimum width cabinets to account for the cabinet sides' thicknesses. Attached are some examples. The 3D is a 6" high cabinet set max 34" AFF, adjust per type of sink and its rim height. Vessel, drop-in, undermount, etc. The 'cabinet' below is a polyline solid stretched to the width of the cabinet. The 2D has the relevant dimensions per ADA.
  14. Single bar style rolling clothes rack symbol needed. I remember using one once but can't locate it again and my search of ChiefTalk and libraries aren't coming up with anything. Anyone know where I might find one. It's needed just for space planning today. Thanks. Never mind...Found it under Garment Rack ... not clothes hanger. Getting older just doesn't pay some days.
  15. KTKArch

    Video Card

    In years past and on earlier versions I had to disable the on-board graphics chip at the bios level. Those Intel chips are notorious for messing up CA and are much slower.