Please anybody who has anything to add or any resource to recommend – let me know! Thanks.
The Drop Pattern
Pure drop patterns do not change the size or shape of the original motif.
The simplest of the drop patterns is the Full Drop. In this pattern motives are repeated along the horizontal and vertical axes.
A famous example of this pattern:
(Have a go at changing the colours yourself here.)
Half Drop Repeat
The repeat of the motif is staggered by 50% by row or by column.
Column 50% offset.
Row 50% offset.
Other Drop Patterns
Can offset the rows and columns by whatever percentage you would like.
Problems with Drop patterns
Designer does not draw enough of the pattern in the design phase and so does not notice other patterns that appear within the drop pattern. i.e. patterns formed by white space in the motif (alleyways).
You have to be careful useing small offsets as it takes more repeats to return to the original position of the motif.
Things to try
Instead of designing within a square, design within a diamond. Often by changing the shape of the pattern repeat, you fill it differently.
Pattern Design - A Book for Students Treating in a Practical Way - Lewis F Day
Ariadne Textile Design Glossary
Textile Design Development - Pattern Repeats