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Frequently Asked Questions

 

If you have questions about Brydenscot Metal products, you've come to the right place. Here are the most frequently asked questions (and answers) about Brydenscot.

 

  1. 1. How do you calculate a part's flat pattern?
  2. 2. What is the minimum flange height we can form on any given material?
  3. 3. Should I design parts that require using the mill width of the sheet?
  4. 4. What kind of files do i need in order to have something punched, laser cut or fabricated?

 

1. How do you calculate a part's flat pattern?: Add up all the outside dimensions and subtract one bend deduction for every bend 90 degrees or more. Bends less than 90 will require less than a full deduction. See our chart under tools for values.

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2. What is the minimum flange height we can form on any given material?: The typical width of a V-die opening is 6 times the material thickness. Thererfore the minimum ID of the flange would be 3-1/2 the material thickness. There must be enough material to rest on the V-die in order that it won't slip off. Example: 16 gauge (.063") 3.5 x 0.63 = .220. There are exceptions to this rule. Please call us at 909.799.0088 for more help.

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3. Should I design parts that require using the mill width of the sheet?: When shearing, punching, or laser cutting a part we require room for trimming, squaring, or set-back. Espeially with laser cutting, we cannot cut to the edge of the sheet. Allow 1/2" all the way around to be safe. Example: 48" wide sheet, maximum part size 47". Exceptions are made.

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4. What kind of files do I need in order to have something punched, laser cut, or fabricated?: The best file formats to get your parts cut accurately and efficiently are: .dxf and .dwg. All CAD software will export these. We prefer 2-D files, not models or 3-D.

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