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Crown Moulding 3-7/16" - 12

Crown Moulding 3-7/16" - 12

This symmetrical concave crown moulding 3-7/16" - 12 measures 3.437" wide by .750" thickness, enabling the pattern to be milled sprung (laying horizontally flat) from four quarter lumber. The cove shaped profile is composed of a 2-1/8" concave semicircle in the center, flanked by a 3/16" square notch with a 13/64" tall vertical line on top and a 13/64" wide horizontal line at the bottom of the pattern. The spring angles are fixed at forty-five degrees, these specific back bevels set the installed height and projection at an identical dimension of 2-7/16" tall and wide.

Review our commentary about axial constant positioning for crown bevels, the article will help you dial this profile in axially on the first try when milling this detail provided the machine is axially calibrated. Four high points in the detail were intentionally positioned on the same plane, our disciplined design features will assure excellent hold down conditions while milling, providing the moulder pressure shoe is parallel to the machine bed plates.

For knife quoting purposes click to open the calculator below, we have added only the important measurements, just enter the appropriate dimension in the boxes provided. A brief detailed explanation on how to use the calculator is located here. Need some assistance with the dimensions? Print a copy of our fraction - decimal - millimeter chart, place it on the molder to help operators save time and increase accuracy during machine setup.

Width = 3.437" / Depth of Cut = .441" (top knives.)

Thickness = .750" / Depth of Cut = .618" (right blades) & .618" (left cutters.)

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Custom Moulding Template

$35.00
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(Template & 2 Knives)

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Note: If you’re experiencing trouble printing to Full Scale, Go to File, Print Preview. Change the “Shrink to Fit” option to 100%

To purchase this CAD generated, “template ready moulding dxf file”, please send $5.00 via PayPal.Me/MirrorReflections we will email you the precision drawing shortly after the payment is received.

Copyright © Mirror Reflections Inc. All rights reserved.