Map Icons makes Google Maps Markers dynamic with control over shape, color, size, and icon easily changed using options in the marker object as well as simple SVG Notation and CSS.
CSS Control
Easily style icon color, size, shadow, and anything that's possible with CSS.
Infinite Scalability
Scalable vector graphics means every icon looks awesome at any size.
Retina Ready
Vector icons look sharp on any display at any resolution.
Over 175 Icons and Counting
One font, lots and lots of icons to choose from.
Accessibility Icons
Icons for accessibility using an accessible web format, icon fonts.
Din 5480 Spline Calculator Excel Verified [verified] -
Designing involute splines according to the ensures reliable torque transmission in high-stress mechanical systems. However, calculating the precise geometries, tolerances, and inspection dimensions by hand is time-consuming and prone to errors. Building a verified Excel calculator automates these complex formulas, safeguarding your engineering designs against manufacturing defects and premature component failure. Understanding the Core DIN 5480 Formula
The official DIN 5480 documentation contains explicit example calculations for specific sizes (e.g.,
: If you are designing splines daily, invest in a verified Excel tool with open formulas. If you are a small shop, find a community-verified version and test it against one known-good spline gauge. Never assume – always verify.
Here are the primary formulas required for your spreadsheet: 1. Pitch Diameter ( din 5480 spline calculator excel verified
Finally, the most rigorous form of verification is . For the critical property of transmissible torque, you must ensure your calculator's results align with established methods. WN2 calculates safety and transmissible torque according to Niemann/Höhn (2005, as in DIN 3892) or Roloff/Matek. You can use these benchmarks to confirm your strength calculations.
Because manual calculations involving standard pressures, module sizes, and profile shifts are prone to human error, a serves as an indispensable tool for design engineers.
) that are independent of the module, allowing the spline to fit standard ball and roller bearing sizes . Core Calculation Principles Designing involute splines according to the ensures reliable
The process begins with , the careful conversion of the mathematical formulas from the standard's annexes into Excel cell references. Every formula must be meticulously checked against the relevant part of the standard, such as DIN 5480-1 for general formulas and DIN 5480-2 for inspection dimensions. For those with advanced VBA skills, it is possible to implement the exact iterative procedure provided in the standard's BASIC program listing, for example for calculating the dimension across/over pins.
I can provide the exact layout rows and code blocks to build your spreadsheet. Share public link
(Use the exact formulas above in Excel cells to reproduce numeric checks.) Understanding the Core DIN 5480 Formula The official
Measuring splines with pins is a common verification method. Recommended Pin Diameter ( dDd sub cap D
db=m⋅z⋅cos(30∘)d sub b equals m center dot z center dot cosine open paren 30 raised to the composed with power close paren : Calculated using the reference diameter ( dBd sub cap B ) to align the pitch mechanics:
Alternatively, leveraging existing, thoroughly tested tools like , FRENCO , TBK , GWJ eAssistant , WN2 , or KISSsoft provides immediate, reliable results backed by years of development. Whether you build or buy, the goal remains the same: to achieve precise, reliable, and verifiable spline calculations that lead to better designs, more efficient manufacturing, and stronger, safer mechanical connections. A verified calculator transforms a tedious manual process into an automated, error-free workflow, ensuring that every spline you design meets the rigorous demands of the DIN 5480 standard.
Usage
Map Icons extends the Google Maps Marker Object to enable either an image or SVG marker to be used with the icon placed on top as a label.
Include
Include the fonts in the dist/font directory as well as the dist/css/map-icons.css stylesheet to use icons in markup as an icon font.
To use the icons with Google Maps include dist/js/map-icons.js
Classes
Icon class names are to be used with the map-icon class prefix.
<span class="map-icon map-icon-point-of-interest"></span>
Styling the Icon
Styles to icons can be applied with the .map-icon CSS selector.
.map-icon {
...
}
Explicit styles to icons being used on a Google Map should be applied with .map-icon-label .map-icon CSS selector.
.map-icon-label .map-icon {
font-size: 24px;
color: #FFFFFF;
line-height: 48px;
text-align: center;
white-space: nowrap;
}
Creating a Marker
Markers are created just like a normal Google Maps Marker, however, the class is extended for the map_icon_label property to add in markup for marker labels.
Note: You should be creating an instance of Marker rather than google.maps.Marker in order for the functionality added by map_icon_label to work.
var marker = new Marker({
map: map,
position: new google.maps.LatLng(-27.46577, 153.02303),
icon: {
path: SQUARE_PIN,
fillColor: '#00CCBB',
fillOpacity: 1,
strokeColor: '',
strokeWeight: 0
},
map_icon_label: '<span class="map-icon map-icon-point-of-interest"></span>'
});