3-M-D logo

CNC Machining

a CNC machine

Dunnage, Dunnage, Dunnage!

a room full of dunnage molds

Based in Brighton Michigan

exterior of the 3-M-D building

Experienced in the Industry

John Munn working at a CNC machine

Munn Mold Manufacturing & Design

3-M-D is a family owned and operated CNC machine shop based in Brighton Michigan. Founded by and operated by "hands-on" owners Mike and John Munn. Together they have a combined 70 years of experience in the industry.

At 3-M-D we specializes in custom aluminum injection molds, both short and long run, for the material handling industry. We offer a variety of services from plastic part design, mold design, and mold building. Our molds are used to build dunnage for the automotive and other industries.

Please contact us by phone or email for more information about our services.

metal mold with the resulting dunnage

Our Equipment

Machines Travel
6030 Fadals x3 60"x30"
4020 Fadal 40"x20"
VF-2 Hass 15"x30"
Wotan Boring Mill 37"x55"x40"
Harig Surface Grinder 612
Standard Bridgeport
LeBlond Lathe
Miller Dynasty 350 Welder
Ipsco Pin Grinder
15x25 Assembly Area 2 Hoists

Located in Brighton Michigan

We are located at 12639 Silver Lake Road in Brighton, with easy freeway access from from I-96 or US 23. To experience the quality and craftsmanship of 3-M-D give us a call and stop by.

Before moving to Brigthon, Munn Manufacturing and Design began in 2007 out of a 17-hundred square foot suite in Livonia. After three years it was time to grow, we moved into our current facility in Brighton giving us plenty of room to expand.