You know your dress size right? Is it the same at every store? Just like your jean size I'm sure you rely heavily on the knowledge that your dress size will be the same in every brand, and at every store. My products are tested and proven.įor all the ladies out there my wife has another point to help you understand why I don't use aspect ratio in my shop. I work hard to ensure that my products never come to you in a size that "works on paper".
CHAINMAILLE ASPECT RATIO CALCULATOR PLUS
I test every weave I offer and make sure that it works in the ring size I list, plus a margin of error. Because of this and other errors I find it to be too risky to rely on numbers for your products. To find the inner diameter for 18 gauge wire take this number (3.075) and multiply it by your new wire diameter (18g AWG is 1.02). 813 (mm decimal equivalent) you get 3.075 as your aspect ratio.
In my shop suppliers sometimes give me wire that is not precisely the right gauge. You know that the directions say 20 gauge rings with an inner diameter of 2.5mm. In a perfect world those numbers are exact and scalable. For example, European 4 in 1 will generally work when made with rings that have an aspect ratio between 3 and 5. The aspect ratio of a chainmaille weave is generally considered to be a range of values describing the range of jump rings with which it is possible to make that particular weave. If they do not list ARs, you will have to see which Mandrel AR gives you an AR that is closest, but on the slightly-smaller side - because remember the ring's actual AR will be bigger than the mandrel AR.I thought you said it could be incorrect? Why don't I ever see it listed in your shop? If they do, you're in luck and hopefully can find what you need. If you don't have rings and you need to purchase them from a supplier, you should check to see if the supplier lists the actual ARs for their rings. In order to duplicate the weave, you would need to find rings of a smaller gauge with the same (or very close) actual AR. You measure your rings with calipers to determine the AR.
Let's say you make a weave and you LOVE the way it looks and you want to duplicate it, only smaller. Micromaille rings are often pinch-cut for this very reason - to avoid removing so much of the metal that the ring is no longer decently circular. However, this also results in an oval-shaped ring that is not useful for most chainmaille weaves. **Disclaimer: There is a rare exception to this - if your rings are very tiny and you use a thick saw to cut them, the resulting ring could have so much metal removed by the saw, proportionate to its size, that the ending inner diameter is actually smaller than the mandrel size. This makes the inner diameter of the jump ring larger than the mandrel itself, thereby making the Actual AR higher than the Mandrel AR Everything you need to calculate the size of jump rings you need for your chainmaille designs Inner diametre, gage, and aspect ratio.
*After wire is coiled it always "springs back" slightly from the mandrel once the tension on the coil is released. However, the Mandrel AR for those 1/8" rings will be the same, since the Mandrel calculations do not take any of those variables into account. The same size may also differ across metals within a single supplier for many reasons, some of which include: temper of wire and size of the cut (kerf). Generally speaking, one supplier’s Actual inner diameter of 1/8" (aka D, aka 3.2 mm) does not equal another suppliers. NOTE: The ARs listed on the upper right of Blue Buddha's packaging and on the online stats pages ( base metal and sterling silver) are Actual ARs. These numbers are different because springback* causes the inner diameter of jump rings to be larger than the mandrel they are wrapped around.** For instance, Blue Buddha's D18 ALUM ring has a measured AR of 2.9 but its mandrel AR is 2.67 This is a variance of 8.7% Mandrel Aspect Ratio, on the other hand, is calculated simply by using the mandrel size the jump ring was wrapped around as the Inner Diameter number. It has been measured with calipers or micrometers. Measured Aspect Ratio, also known as Actual AR, is the exact aspect ratio of a jump ring. How does Measured (actual) AR differ from Mandrel AR?
0 kommentar(er)
