An Elevator for My 1. Storage Shed 5 Steps with PicturesAfter mulling it over, I decided to re think my priorities and went back to my shed and eliminated a few pulleys from the system. I managed to reduce the number of pulleys from 9 to 6, reducing the friction in the system by about 3. First, the bad news  The line no longer runs through a clean system, devoid of wear points. The 4 pulleys that changed the lines direction from left to right and top to bottom is now done with 2 pulleys. Because the lines angle from the top pulleys to the bridle changes slightly as the platform goes up and down, the line that goes through the pulleys used to change direction moves from side to side  as well, making contact with the pulleys steel frame. But hey, its a shed. I also had to lower the bridle height at the eve side of my platform. This takes a bit of stability away, but nothing I cant live with. Im adding a photo of how to tie a stopper knot. I use stopper knots to tie off the bitter ends of line that run through fairleads and eyes. They dont add weak points to the line and are very easy to untie. Basically, a stopper is a granny knot with an additional loop around the standing part of the line. Some people call this a figure 8 knot because of the way it looks when its being tied. Good news is, I now have 3 additional pulleys to play with and the platform goes up with less effort and comes down without any effort whatsoever. Elevator Autocad Detail' title='Elevator Autocad Detail' />Another area where friction can appear is in the line itself. Braided line is smooth and runs through pulleys easier than laid line will. If you use braided, try to find some that has colored fibers woven into it. Elevator Autocad Details' title='Elevator Autocad Details' />Besides looking pretty, the contrasting colors makes it easier to tell if the line is twisted. The photos of the line in my system show what happens to twisted line. It becomes distorted and lumpy. All these lumps trying to squeeze through the pulley blocks adds a lot of friction. Untwist your line when you rig it, and check it once in a while to insure it isnt causing you grief. If your system seems to be getting harder to work, check your lines for twist. Hoe you enjoyed this. Hey  Why not download my FREE i. Phone app  Everything you wanted to know about me. Aint that exciting Here it is. Necessary distance for opening and closing a door swing necessary space for opening cabinet 2 doorsnecessary space for sliding doors necessary space for. Process Piping. Complete Systems and Repairs, Chilled Water Piping, CleanInPlace Piping Systems, Compressed Air Piping and Systems, Cooling Tower Water, De. PNG]];var lpix_1=pix_1.length;var p1_0= [[783' alt='Elevator Autocad Detail' title='Elevator Autocad Detail' />What is Building Information Modeling ENGINEERING. BIM is used across the AEC industries to facilitate structural design. Image courtesy of AMC Bridge. Building information modeling BIM is permeating the AEC industry at an escalating rate to the point where corporations and even countries are choosing to mandate the platform for large scale projects. However, BIM is far from self explanatory. Its a rather complex concept that leaves people with a lot of questions. What is BIM What can BIM do How does BIM workEach question has multiple answers, which opens the possibility for a wide range of misconceptions. This can create a barrier for those trying to adopt BIM. Lets see if we can clear the air on these misconceptions and answer some of these questions about BIM. So what is building information modeling, anyway This may come as a surprise, but BIM isnt new. It first appeared as early as 1. Douglas Engelbart wrote his paper Augmenting Human Intellect A Conceptual Framework and described architect entering specifications and data into a building design and watching a structure take shapea concept very similar to modern parametric modeling. The term BIM was first used back in the 9. It picked back up after the recession and has really taken off in recent years. Because it was a bit of a late bloomer, BIM might seem like a brand new and scary thing for dedicated CAD usersbut the shift from CAD to BIM has been a long time coming. What Can You Do with BIM At its core, BIM is 3. D design and modeling software with a twist. For Gensler, an international architectural design firm with projects like the Shanghai Tower under its belt, BIM is the way to go. That particular project met with several tight restrictions during the design process, all of which necessitated the ability to design and analyze different systems quickly and efficiently. The faade of the Shanghai Tower necessitated the use of BIM. Image courtesy of Gensler. What was the answer Well, for Gensler, the solution was building information modeling. Gensler has made a concerted effort to integrate BIM technology and processes in all practice areas across all offices, said Michael Concannon, regional digital design director at Gensler. The rate of adoption varies, but no practice area and no office is immune to the use of BIM technology. The firm promotes the use of BIM among its clientele, emphasizing that BIM is useful for the entire built environment, but occasionally it meets with difficulty when a client isnt familiar with the concept. I think there are a lot of misconceptions because BIM has changed a lot since its inception, said Joy Stark, senior industry marketing manager at Autodesk. Its really a product of how technology has changed. If we think about it in terms of model based design and a work process, then we start to see the possibilities, Stark continued. This sounds easy enough, but definitions of BIM arent always so straightforward. How the Industry Defines BIMThe best way to begin understanding BIM is to look at what the industry has to say about it. However, not all definitions are the same. Autodesk. Autodesk is a maker of popular BIM software platforms such as Revit and Auto. CAD Civil 3. D. A discussion with Stark and Ralph Bond of Autodesk revealed that the company has a very information centric view of the design platform BIM is an intelligent model based process that helps make design, engineering, project and operational information accurate, accessible and actionable for buildings and infrastructure, according to Bond, PR manager for AEC and infrastructure at Autodesk. This data is key for a building information modeling project. After all, that is what the I in BIM stands for. Having high levels of data in a model keeps everyone on the project team on the same page, which can help with all stages of the project from conception to construction documentation and maintenance. GRAPHISOFTGRAPHISOFT is the maker of Archi. CAD, one of the first BIM software platforms to hit the market. When asked to define BIM, Mary Moscarello, a media relations consultant at GRAPHISOFT, had a very different take compared to Autodesks information centric perspective. BIM is the use of 3. D virtual models of buildings, as well as a process of managing and collecting building data, according to Moscarello. When it comes to BIM, everything starts with a 3. D digital model of the building. Just like information, the model is crucial to the overall BIM process. It sets the stage for the overall project, contains all of the virtual equivalents to the buildings parts and pieces and invokes the practical applications of these pieces. Bentley Systems. Bentley Systems makes modeling and project delivery software such as AECOsim Building Designer and Project. Wise. According to Harry Vitelli, the companys senior vice president of construction and field project delivery, Bentley takes a different approach to BIM altogether. Using a BIM methodology improves collaboration and ensures a new level of control over projects of all sizes, said Vitelli. Better project outcomes are achieved through a complete flow of information among applications and across distributed project teams for greater accuracy across the entire supply chain. Burned Bush Wells Pdf. Although Bentley discussed the aspects of information and modeling, the focus in this company is on the process involved in BIM. This process, which works concurrently with the technological aspects of BIM, stays behind the scenes to keep everything working smoothly between project teams. You may have noticed that each of these definitions leans toward one aspect of BIM. These companies clearly have distinct views and with distinctions like this, it can be difficult for users to dig down to the true meaning of BIM. Where does this leave us Common BIM Misconceptions. Just about every source, including industry leaders, has its own definition of BIM, which can leave users with a slew of misconceptions. Lets have a look at some of these misconceptions to unpack what BIM really is. Misconception 1 BIM is just for architects. One misconception of BIM is that its just for architects, said Stark. Not just for architects BIM can be used for all kinds of building projects, including the London Underground renovation modeled here. Image courtesy of Bentley Systems. This is one of the most common misconceptions when it comes to BIM and quite frankly, it was something I struggled with at first. As with CAD, its easy to assume that BIM is just used for the skyscrapers you see when you drive through the citybut it could well have designed the road youre driving on. The fallacy that BIM is just for architects stems from the simple fact that the construction and architecture industries were among the first to adopt the process. However, it may have started somewhere else entirely. One could argue that structural engineering was using it for a long time as well, commented Concannon. Even before architects were building 3. D buildings, structural engineers were building 3. D buildings to perform analysis. BIM is for everyone, Concannon added. It can be used for just about anything in the built environment, including Architecture and building design. Civil and structural engineering. Energy and utilities. Highway and road engineering. Landscape and land surveying. Offshore and marine architecture. Rail and metro transportation engineering. Tunneling and subway architecture.