Creative Woodworks & crafts 2005-08, страница 16

Checking Patterns fo

by Rick Hutchesen

WITH BONUS PATTERNI

Wc alJ. know the feeling of finding a new pattern and thinking, "Wow! J have to cut this one t ight away!" However, there are a few steps that need to he taken before the cutting ever starts, and one of those steps involves chcck irig the accuracy of the pattern. No matter (tow much care is given to designing a ptp-jccl, there are still reasons why a pattern may not be accurate.

One error can occur simply by making a copy oi^: the pattern. Some copy machines distort the original by strctching or shrinking it a little, but in only one direction, such as longer but not wider. Now your project is going to have gaps around the slots or not fit at all. Wei], don'I blame the publisher or artist becausc the discrepancies arc caused by the machine you used. In addition, every machine differs in the degree to which it distorts an image. So how do we get around that? Make several extra copies and match up ail the parts that are going to meet or fit into each other.

Pattern for this shelf given in Full Size Pattern Section 2

As I mentioned earlier, the strctching or shrinking might occur in only one direction and is the most typical distortion, so your tab may be a little longer but not wider. However, the dimension is still wrong and the tab is still too long.

Fold over the tab* so you can chcck the length of the tab against the slot. Check every part against the position it will tit. into ij.i the finished project.

16 • Creative Wuudworks & Crafts August FTlfB

St) how do wc clicck it all out before we lay out. the paLtern on wood? fhe way 1 do it is lo cut the extra patterns apart and match litem to their positions.