Mr moulding knives logo
Copyright © Mirror-Reflections. All rights reserved.

Crown Moulding 4-1/4" - 21

Crown Moulding 4-1/4" - 21

This charming crown moulding 4-1/4" - 21 measures 4.250" wide by .813" thickness. The appealing profile is comprised of a 29/64" tall vertical line joined to a 27/64" ovolo in the upper portion, connected to a 1-19/64" radius cavetto in the center with an asymmetrical 5/16" radius ovolo in the lower section, connected to a 5/16" wide horizontal fillet at the bottom of the pattern.

The spring angles are fixed at thirty-eight and fifty-two degrees, these specific back bevels set the installed height at 3-11/32" tall with a projection of 2-5/8" wide.Two high points in the design were deliberately positioned on the same level plane, our specialized design features will assure excellent hold down conditions while milling the detail on any industrial style moulder. Read our commentary about axial constant positioning for crown moulding bevels, the article will help you dial this profile in axially on the first try when milling this detail on an industrial moulder, provided the moulder is axially calibrated.

For knife quoting purposes use the calculator below, we have added only the important measurements, just determine the cutters you need. 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 moulder to help operators save time and increase accuracy during machine setup.

Width = 4.250" / Depth of Cut = .467" (top knives).

Thickness = .812" / Depth of Cut = .397" (right blades) & .651" (left cutters).

Molding Knife Calculator

Moulding Size
(inches)

fraction
/

Depth of Cut
(inches)

fraction
/

Grade of Steel

Subtotal

$0.00
$0.00
$0.00

Custom Moulding Template

$35.00
$35.00
$35.00

Total
(Template & 2 Knives)

$0.00
$0.00
$0.00

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 a copy of this template ready dxf file for creating acrylic templates to produce knives please send $5.00 via PayPal.Me/MirrorReflections we will email you the dxf file shortly after payment is received.

Copyright © Mirror Reflections Inc. All rights reserved.