X-Git-Url: https://git.distorted.org.uk/~mdw/dep-ui/blobdiff_plain/ac26861cd2097171f4f61adf7277af93c7094b16..0e31736de5165c0c0d71a87f87a6488d7cfbeb76:/rolling.html diff --git a/rolling.html b/rolling.html index fbee44e..1feb248 100644 --- a/rolling.html +++ b/rolling.html @@ -3,15 +3,17 @@ Rolling wire-strip calculator - - + + +

Rolling wire-strip calculator

+
@@ -146,8 +148,9 @@ DEP_UI.add_elt_class(DEP_UI.elt('js-note'), 'conceal'); -->

This page is only really interesting because it contains a Javascript -program. You seem to have Javascript turned off, so it won't work very -well. +program. You seem to have Javascript turned off, so it won’t work very +well. It only requires first-party scripts; +see Privacy for more details.

Background

@@ -170,6 +173,14 @@ of it you need to create the required starting size that you can then roll down to the required thickness of strip.

For best results, roll the strip in as few passes as you can handle. +The results aren’t accurate for broad, thin strips. +Width-to-thickness ratios of up to 6:1 are known to be good; ratios of +12:1 or more don't work: strips don’t get as wide as predicted by +our model. We need to collect more data and construct a better model to +handle this case properly. + +

You can see the detailed equations +used for this calculation if you’re interested.

Use

@@ -183,6 +194,47 @@ calculator can’t understand what you’ve typed in an input box, or it’s hit trouble – usually this means that some necessary input is missing. +

You specify the width and thickness of the strip you want, and the +program calculates what size round or square wire you should start with. +Additionally, if you specify the length of strip you need, it will +calculate the length of the input wire. + +

You can use whatever units you like, as long as they are consistent, +but you cannot use wire gauges. If you use millimetres, the results +will be in millimetres; if you use inches, the results will be in +inches. Whatever you use, the results are displayed to only 3 decimal +places. + +

Code and credits

+ +

The code which makes this page work +is free +software. You +can browse or download +it, modify it, and/or redistribute it under the terms of the +GNU +General Public License, version 2 or, at your option, any later +version. + +

If you make interesting changes, I’d be very grateful to know +about them. Please mail me +patches. + +

The Javascript machinery on this page was written by Mark Wooding; +the text was written by Mark Wooding and Gary Wooding. The data used +to derive the computation was provided by Gary Wooding. + +

Privacy

+ +

There are no cookies or other trackers here. This page does not use +externally hosted scripts, fonts, images, or anything else. The server +has logged your IP address, which helps me fix things if they go wrong; +mostly things work fine and the logs are discarded after a couple of +weeks. + +

Most web browsers can save a version of this page which can be used +offline. +