Roll Up Diameter¶

It is now possible to calculate the roll up diameter of fabric when it is rolled round a tube.

There is a new parameter in Blind Details > Blind Types called ‘Check Roll Up Diameter’ , which defaults to false.

If it is set to true, then a function checks the roll up diameter against the ‘Max Valance Diameter’ and if it is greater, displays a message that says ‘The roll up diameter is too large for this option choice [description of option].
The function will have to look at all the option choices and select the correct ‘Tube Radius’ (ie it will be the record where tube radius > 0) and also find the ‘Max Valance Diameter’ from other options chosen (ie the lowest but > 0).

This works in both imperial and metric.
The radius of the roll is calculated as:
R = √(L ×t/π + r2) where L is the length of the fabric, t is the fabric thickness and r is the radius of the tube.

The tube radius and fabric thickness fields are both held in the stock record, so we can perform this calculation.
There is also a field called ‘Max Valance Diameter’ which is where we need to hold the maximum allowable roll up diameter.

Order Processing > Orders > Detail Line Import

At the moment it is possible to import detail lines into an order.
However, the option defaults that get set for these may not be correct, since we created the functionality for roll up diameter, tube deflection and torque calculation.

There is a new parameter in Administration > Parameters > Order/Quotation Processing called 'Import Torque Etc Validation'.
When the ‘Import’ button is used in Orders, it will then employ a function that will run through all the detail lines on the order and check roll up diameter, tube deflection and torque (if the flags are switched on in the blind type record).

Roll Up Diameter Calculation

An alteration has been made to the specification for this.
Previously when the roll up diameter was calculated, it was checked against the ‘Max Valance Diameter’ which is held against the tube.
It is now checking the calculated roll up diameter against another option.

We therefore now hold a new ‘Code’ in the ‘Option Name’ records called ‘Max Diameter’.
The program then checks the roll up diameter against this option stock code instead of against the tube.

Also ‘Max Valance Diameter’ has been renamed to ‘Max Roll Up Diameter’.

Roll Up Diameter

A further change has been made to the roll up diameter functionality.
It has been pointed out that there could be more than one option choice that has a ‘Max Roll Up Diameter’ eg a valance and a bracket may both have restrictions on how thick the roll up diameter can be.

Instead of looking for the ‘Max Roll Up Diameter’ in one stock record (identified by the option name ‘Code’), the system now looks at the ‘Max Roll Up Diameters’ for all the option choices and selects the lowest one that is not zero.

If all option choices have ‘Max Roll Up Diameter’ of 0, then a message will appear saying ‘At least one option choice should have a maximum roll up diameter’.

Order Processing > Orders

The message that appears when the roll up diameter roll up diameter test fails has been changed.
It now specifies the option selection that contained the max valance diameter that was less than the roll up diameter,
It recommends changing the option selection to another that has a max valance diameter greater than the roll up diameter.