Multiplier for 15 degree bend

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Trigonometry, is a branch of mathematics specifically dealing with the sides and angles of triangles. Trigonometry is a key part of conduit bending. Fortunately every type of bend is based off of a right triangle. There's three basic formulas for trigonometry. The values of these formulas play a huge role in determining the unknown sides and angles of a triangle.

Multiplier for 15 degree bend

On page the shrink for offsets is given as hypotenuse - side adjacacent. The side adjacent is AB. For convenience this is called the geometric shrinkage. Distance BC is the height and angle 2 is the offset bend angle. Distance AB can be found by:. The values for this shrinkage multiplier are constant for given angles and does not vary for different radii or heights. The third shrinkage multiplier are those given in Zip tables found in handbooks and manuals and largely the result of Benfield's Tables as published in the Benfield Conduit Bending Manual. These values are shown in Table 1. These values are constant and do not vary with a change in radii or height. These values assume that there are no bends or arcs in the offset, and that the conduit follows a broken straight line path which it doesn't. These shrinkage multiplier values can be calculated using the calculator below by setting the radius to 0 and adjusting the angle. A change in height does not effect the calculated shrink multiplier while the radius is set to zero. Below are four charts made using an Excel Spreadsheet showing some typical differences in the three Shrinkage Multiplier Values. The spreadsheet is available by clicking here: If you are using IE and have Excel in your system you should be able to download and use this spreadsheet.

Could you guys give me your procedure for saddling this with the technique of keeping the bender on the conduit in only one direction. Distance BC is the height and angle 2 is the offset bend angle.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The same thing happens with my 90 degree bends.

Master conduit bending techniques, , and calculations with our comprehensive cheat sheet. Learn the basics, types of conduits, tools required, and for efficient and accurate bending. Conduits are typically made of materials such as metal or plastic and come in various sizes. Here are a few common types of conduits:. These tools are designed to help you achieve accurate bends and ensure the safety of the installation. Here are some of the key tools required for conduit bending:. Here are some essential to keep in mind when bending conduits:. By understanding the basics of conduit bending, knowing the different types of conduits, having the necessary tools, and following , you can confidently tackle conduit bending projects with precision and efficiency. When it comes to conduit bending, one of the key factors to consider is the bend radius. The bend radius refers to the minimum radius that a conduit can be bent without causing damage or compromising the integrity of the conduit.

Multiplier for 15 degree bend

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Edit this page. Multiplier times ht for distance between bends. QuickBend Docs. Deals Forum. Fortunately every type of bend is based off of a right triangle. Location Iowegia. On offsets make sure you are measuring from botttom-to-bottom and on 90's the measurement should be to the back of the bend. Offset Calculator. These values assume that there are no bends or arcs in the offset, and that the conduit follows a broken straight line path which it doesn't. Basic Formulas There's three basic formulas for trigonometry. We need a little more info before we can help. When new radii and height values are entered in the Excel spreadsheet the yellow plot representing the calculator values is the only one that changes.

But what happens when you need to bend them at an angle?

This is an older thread, you may not receive a response, and could be reviving an old thread. Shrinkage multiplier times ht. Insert Quotes Quotes Post Reply. Location San Francisco, CA. Location Owego, NY. Figure 1 illustrates proof that the calculator is calculating shrinkage correctly. Thanks guys, that is a really good link, just checked it out. Trigonometry, is a branch of mathematics specifically dealing with the sides and angles of triangles. Location Iowegia. I will definitely work on the foot pressure and double check that my measurements are bottom to bottom. The values for this shrinkage multiplier are constant for given angles and does not vary for different radii or heights. Yes if I try for a 11" 90 I get probably around NOTE: for offsets bottom-to-bottom and center-to-center should be the same measurement. If I'm not explaining this well