This allows you to have one standard way of measuring the rim diameter, regardless of the nipples you actually intend to use. Based on your standard measurement you then select a nipple which makes an adjustment to give the correct diameter for the spoke length calculation. You create your own set of nipple adjustments. For more background on this, see the help text for Erd in the calculator data entry form.
Enter your adjustments using the following format:
uniqueID<space>Adjustment<space>Description
For example:
dtsq 2.2 DT Squorx
uniqueID
Identifies this adjustment. No spaces.
Adjustment
Numeric adjustment, zero allowed. The value is used to alter your Erd/NSD entry in the data form.
Description
The nipple description, spaces are allowed.
For example, if you are measuring the Erd using standard DT 12mm nipples on your measuring tools, a typical adjustment list is shown below. If you build the wheel with the same DT 12mm nipples you do not make a selection in the data entry form, because being the same as the measuring nipple it doesn't need adjusting.
Edit the adjustment table and copy and paste this into the text box.
dtsq 2.2 DT Squorx
sap12 -0.5 Sapim Polyax 12mm
A selection table is now added to the data entry form. Enter your hub and rim data, and select a nipple and see how it makes the adjustment to the Erd.
On some of your rims you might be using the Nipple Seat Diameter as your standard measurement, for example rims with concealed spoke beds. For the same nipple, these rims will require a different adjustment. You might even move to NSD as the standard measurement for all your rims.
Start your nipple id with nsd-
Edit the adjustment table and add these to your nipple list.
nsd-dtsq 4.2 DT Squorx
nsd-sap12 1.5 Sapim Polyax 12mm
Look at the data entry form. The NSD nipples are easily identified, selecting one changes the data entry form, and it will also change headings elsewhere in the calculator.
This value changes your entry for the Erd/NSD. You can see what it does by looking at the output from a calculation. Look in the data used table (below the calculation), and also the calculation Log.
The adjustment value is determined by:
The list is saved in your browser (the one you are using now), and will only be visible in this browser. To make the list appear in other browsers, make a backup then open the other browser and paste it into the calculator.
You should always backup your list. To make a backup, edit the adjustment list (to show the text content) then copy the contents and paste it into a text document.
Your list will be deleted if you delete your browser cookies (for this website).
The uniqueID is saved in the calculation Url, and also Wheels that you add to your Bench. The Bench will show the uniqueID for the wheel.
When you load one of these items back into the calculator it will use the uniqueID to select the required nipple. If the uniqueID cannot be found in your adjustment table it will show a warning message. If you intend to save Url's and Bench wheels, then don't keep changing the uniqueID, think about a standard format and keep to it.
The Url/Wheel will also save the adjustment value. When it loads the Url/Wheel back into the calculator it will check the value with the one in the adjustment table, and if there is a difference it will warn you. You might have fine tuned your adjustments and the Url/Wheel was using the old value.