Moulding Knives by Mirror Reflections

Moulding Knives
by Mirror Reflections
(801)451-5987

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Chair Rail 4-1/4" - 7

Chair Rail 4-1/4" - 7

Chair Rail 4-1/4" - 7

This distinctive chair rail/casing moulding 4-1/4" - 7 measures 4.250" wide by 1.250" thickness, allowing the detail to be milled from six quarter lumber. The beautiful custom profile is composed of a three tangent radius elliptical shaped arc flanked by small line segments on top, the left side retains a 1/2" concave semicircle tangent off of a 7/16" convex arc creating a lovely cyma recta, the center consists of a one inch radius cove that transitions into a 9/16" wide half round bead, joined to a 5/32" wide line with another smaller ogee on the right side of the design. Explore our backout category for an appropriate relief cut for the bottom of this detail, we’re confident you will find a suitable design to suit your needs.

Before you begin knife grinding procedures, please read our article on knife cutting circles to see if you can safely mill this pattern on your machinery, this profile will not be able to be milled on certain models of molders. Review our commentary on custom made pressure shoes, this helpful step by step article will help you mill this profile to perfection.

Caution; the cutters will come within .020" of the moulder bed plates when milling this detail. We recommend a wooden, phenolic or plastic sacrificial bed plate be used for these types of milling operations. 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 = 4.250" / Depth of Cut = 1.250" (top knives) & .093" (bottom cutters.)

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 $11.00 to PayPal.Me/MirrorReflections we will email you the precision drawing shortly after the payment is received.
© Copyright 1997 - 2024 Mirror Reflections Inc. All Rights Reserved.
Superior Quality Moulding Knives, Profile Templates & Tooling Since1997
Custom made in the USAMoulding Knives Made in the USA

Moulding Knives by Mirror Reflections

1588 South 250 East | Kaysville, Utah 84037

Phone/Fax: 801-451-5987 

Moulding Catalog Updated Thursday, March 28, 2024

© Copyright 1997 - 2024 Mirror Reflections Inc. All Rights Reserved.