What guidelines must be followed when drilling holes in acrylic sheets for mounting?

When drilling holes to support acrylic sheet by point fastening, there are two rules that apply. First, the bolt hole diameter should be at least 2 times the diameter of the bolt. This allows for adequate clearance for thermal and moisture expansion and contraction. Second, the distance from the hole center to the edge of the sheet should be at least 1.5 times the diameter of the drilled hole. Please see the picture below for a detailed diagram. 

Article Title:
What guidelines must be followed when drilling holes in acrylic sheets for mounting?
Article Summary:
Information on drilling holes in acrylic sheets.
Article Date:
12/9/2010
Article ID:
882
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