3D Printing
3D Printing Service Contact us
Home / Military / US Marines Print Metal Rocket Cap for Mine Clearance

US Marines Print Metal Rocket Cap for Mine Clearance

September 1, 2021

“War! What is it good for?” asked Edwin Starr. “Absolutely nothing!” was his oversimplified reply.

He was partly correct. As it turns out, war is pretty good for finding innovative new ways to blow stuff up.

That’s exactly what the US Marine Corp (USMC) has been doing lately in the domain of mine clearance, with their 3D printed metal rocket cap. What is a rocket cap exactly, and why is a 3D printed one better? Read on to know more.

Rocket Cap
Rocket Cap (Image credit: USMC)

Rocket Cap

The M58 Mine Clearing Line Charge is a rocket-projected explosive line charge used for demining activities. A line charge generally speaking is a long line with explosive charges attached along its length. It is fired from a vehicle by rocket, and the rocket pulls the line charge out to its full length across the minefield. Once laid out, the charges detonate and trigger any mines in the swath of the line charge, making way for troops and vehicles to safely cross.

In the case of the M58 here, it can apparently blast a corridor measuring 100 metres by 8 metres. The 5-inch MK22 Mod 4 rocket carries the line which contains 5lbs (2.27kg) of C4 explosive per linear foot (0.3m) of line. And on the end of that rocket sits a cap. Traditionally it seems that these may be made from metal casting and machining.

The new version does away with all those processes in favour of the 3D printed one you can see in the picture below.

headcap
Printed caps are less time consuming (Image credit: USMC)

The drawing in the image below shows the cutaway of the MK22 Mod 4 rocket. The end cap sits on the end and is connected to the nozzles.

Note that unlike most rockets, the nozzles are on the nose of this rocket, and not the tail end (presumably for stability, and so it doesn’t set the line on fire).

There is a fair bit of complicated geometry inside the end cap as you can see.

Cutaway
Cutaway of the rocket. The cap is shown at the bottom left corner (Image credit: Department of the Army)

The Program Manager for Ammunition at Marine Corps Systems Command (PM Ammo) has been experimenting with the use of additive manufacturing for these caps, as traditional methods of manufacture are costly and time consuming.

Successful Test

After much R&D, a test article was printed by the Naval Surface Warfare Center Corona Division and deployed at Yuma Proving Ground in Yuma, Arizona. By all accounts, the test was a success and the mines were cleared from the test area.

3D model
3D model of the rocket. Rocket cap is of the left hand side (Image credit: DoD Energetics Centre)

“The rocket motor fired off just as intended and the line charge detonated as it is supposed to, which was a significant moment for us.” CWO2 Justin Trejo, Project officer with PM Ammo at MCSC.

We don’t have a video of that exact test at Yuma, but there is a great video below showing the deployment of the rocket and subsequent detonation of the line thereafter.

“We’re able to create equipment parts and other assets for whatever particular mission we’re engaged in,” said Trejo.

“This 3D-printed headcap represents the Marine Corps going above and beyond to support our Marines.”

Related Story
Digital Twins and 3D Printing for Army Helicopters
Share:
WhatsApp Twitter Facebook LinkedIn Buffer Reddit E-mail
About the author | Phillip Keane
Phillip is an aerospace engineer from UK. He is a graduate of Coventry University (UK), International Space University (France) and Nanyang Technological University (Singapore), where he studied Advanced Manufacturing at the Singapore Centre for 3D Printing.
  • Home
  • Service
  • Materials
  • Contact us

Social

  • Facebook Facebook 3D Printing
  • Linkedin Linkedin 3D Printing
  • Twitter Twitter 3D Printing

3D Printer Categories

  • Desktop 3D Printers
  • Industrial 3D Printers
Join our mailinglist

Our newsletter is free & you can unsubscribe any time.

Latest Posts

3d-systems-high-temperature-materials
An Overview of 3D Systems’ High Temperature...

August 11, 2022

thermoset research
Researchers Demonstrate Frontal Polymerization Co...

August 10, 2022

creality
Ender-3 Neo Series, HALOT-RAY, and Creality Sonic...

August 5, 2022

cern pipe
CERN to Spin-off AM Heat Exchangers

August 2, 2022

anycubic microled
Anycubic to Release Cute and Tiny MicroLED Resin ...

August 1, 2022

zem ev
TU Eindhoven Prints CO2-Eating EV

July 29, 2022

liebherr
New Titanium AM Parts Coming to Airbus A350

July 26, 2022

factory in a shipping container
Marines Get Their Own Factory in a Box

July 22, 2022

  • Figure 4 HI TEMP 300-AMB Figure 4 HI TEMP 300-AMB
    HVAC, Low pressure molding/tooling, Motor mounts
    High temperature resistant, Strong
    View Details
  • Figure 4 High Temp 150°C FR Black Figure 4 High Temp 150°C FR Black
    Electrical and under-hood housings, Flame retardant parts for trains and busses, Printed circuit board covers
    Rigid, Self-extinguishing, Flame retardant, High temperature resistant
    View Details
  • Figure 4 RUBBER-65A BLK Figure 4 RUBBER-65A BLK
    Bumpers, Dampers, Grips, Gaskets, Sealings
    High elongation, Mid tear strength
    View Details
  • Figure 4 RUBBER-BLK 10 Figure 4 RUBBER-BLK 10
    Bumpers, Couplings, Grips, Overmoldings
    High tear strength, Tough, Durable
    View Details
  • Modix BIG Meter Modix BIG Meter
    1010 x 1010 x 1010 mm
    $11,500
    Request a Quote
  • Tractus3D T2000 Tractus3D T2000
    680 (D) x 1000 (H) mm
    $27,000
    Request a Quote
  • Cosine Additive AM1 Cosine Additive AM1
    1100 x 850 x 850 mm
    $125,000 - $150,000
    Request a Quote
  • Modix BIG-120Z Modix BIG-120Z
    600 x 600 x 1200 mm
    $7,900
    Request a Quote
  • BLB Industries The BOX SMALL BLB Industries The BOX SMALL
    1500 x 1000 x 1000 mm
    €167.500 - €200.000
    Request a Quote

Company Information

  • What is 3D Printing?
  • Contact us
  • 3D Printing Service
  • Newsletter
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing

Blog

  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers

Featured Companies

  • Modix
  • 3D Systems
  • Cosine Additive
  • Tractus3D
  • BLB Industries
  • Fusion3

Featured Reviews

  • Anycubic Photon M3
  • Flashforge Creator 3
  • Flashforge Creator 3 Pro
  • Craftbot FLOW IDEX XL
  • BIQU B1
2022 — Strikwerda en Dehue
  • Home
  • Service
  • Materials
  • Contact us
Featured Companies
  • Modix
  • 3D Systems
  • Cosine Additive
  • Tractus3D
  • BLB Industries
  • Fusion3
Blog
  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers
Company Information
  • What is 3D Printing?
  • Contact us
  • 3D Printing Service
  • Newsletter
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing
We serve cookies on this site to analyze traffic, remember your preferences, and optimize your experience.
Details
Close