Fix screw holes in parametric enclosure example

[prplz]

Updates parametric enclosure example for centerOption changes (#532)

[codecov]

Codecov Report

Merging #1023 (1c07ebf) into master (5147dd8) will not change coverage.
The diff coverage is n/a.

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  Coverage   96.27%   96.27%           
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  Files          40       40           
  Lines        9357     9357           
  Branches     1103     1103           
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  Hits         9008     9008           
  Misses        205      205           
  Partials      144      144           

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[prplz]

I just realized this could also be fixed by skipping workplane entirely: cutlip.faces(">Z").rect(POSTWIDTH, POSTLENGTH, forConstruction=True).vertices()

[jmwright]

@prplz I think that skipping the workplane() call is too likely to cause confusion example. Was this the only workplane call that was causing problems, is that why you added centerOption to it but none of the others?

[prplz]

This particular example needs it because the lid is moved off center, causing the screw holes to not get added without my change

[jmwright]

Ok, thanks for the contribution.

[jmwright]

Simple change, merging with only one review.