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Solid Aluminum Optical Breadboards, Double Density Holes
8" x 24"
12" x 12"
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Double Density Breadboard Mounted Above an Optical Table Surface Using Standoff Posts
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A Fifth Mounting Hole in the Middle of the Breadboard Increases Rigidity and Reduces Stress When Mounting Heavy Loads
Our Double Density Breadboards are constructed from a 1/2" (12.7 mm) thick aluminum plate to maintain flatness over the full length and provide a double density hole pattern of 1/4"-20 (M6 × 1.0) tapped holes (see the Hole Patterns tab for information on tap spacing). The small footprint and slim profile make these breadboards ideal for compact areas. Since the holes are threaded completely through these base plates, components can be mounted on both sides at once. Standoff posts allow the breadboards to be mounted above the surface of an optical tabletop (or breadboard), as shown in the image to the far right, for access to components on both sides.
Each breadboard features four or five mounting holes, offset from the array of 1/4"-20 (M6) threaded holes, which are counterbored to create an uninterrupted surface for any intended application. The four standard mounting holes are located at each corner of the breadboard, inset 1" from each edge (25 mm on metric). All breadboards except the MB12D, MB1530/M, and MB3030D/M include a fifth counterbored mounting hole at the center of each board. Using the center mounting hole increases the mounting options available, reduces stress at the corner mounting holes, and increases rigidity when heavy loads are placed on the boards (see photo to the right). The mounting holes may be used to attach the breadboards to optical tables, other breadboards, mounting posts, brackets, or a variety of other surfaces or mounts.
One imperial and one metric breadboard below are designed for use with the EC2530C enclosure. They are thinner than the other breadboards on this page, and the mounting counterbores are positioned to allow the breadboards to be mounted within the enclosure. See our benchtop enclosures for custom electronics for details.
Note: the hole patterns on the EC2530BB and EC2530BB/M are different from those shown in the drawings above. See the following PDF drawings for details:
The EC2530BB and EC2530BB/M breadboards are designed to fit inside the EC2530C benchtop enclosure for custom electronics. The breadboards have a thickness of 9.5 mm, which is thinner than the standard aluminum breadboards sold above. In addition, these breadboards have four M3 counterbored mounting holes for compatibility with the EC2530C enclosure, rather than four 1/4" (M6) counterbored holes. See the table to the right for specifications, and see the PDF drawings for details by clicking on the red Docs icons () below.