Covid-19 Response

Knightkrawler Robotics

FRC Team 2052

2021 Update

We are no longer filling large-quantity orders, as it is now more efficient to source these from large manufacturers. However, if you need a small order of 5 visors or less, we would be glad to make some for you.

If you are in need of clear plastic shield parts for visors you are 3D printing, or replacements for shields you have, we have hundreds of extra shield parts we can share.

To REQUEST or ask QUESTIONS about face shields, please email

Our Story

Who We've Donated To

  • Abbott Northwestern
  • St. Joseph's Hospital
  • Allina Health
  • Advocate Illinois Masonic Medical Center
  • UnityPoint Health Des Moines
  • Iowa Methodist Medical Center
  • Children's Hospital
  • Mercy Hospital nurses
  • United Hospital Labor and Delivery
  • Minneapolis VA Health Care System
  • Labor/delivery and neonatal ICU
  • Ambulance crews
  • Ramsey County Public Health workers
  • Hennepin County Sheriff's Department
  • Brooklyn Park Fire Department
  • Mounds View Police
  • Ramsey County Correctional Facility
  • Autism Society of Minnesota
  • Nursing and Assisted Living Homes
  • Local dental offices

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KnightKrawler has already secured all needed funds for our face shield production. However, if you would like to support KnightKrawler in our robotics endeavors you can donate through our PayPal below. In the coming year, KnightKrawler will be facing a significant change in our funding. We welcome your donation to help the team through this transition and keep the program accessible to all students. If you would like to learn more about the funding changes, or have interest in becoming an official sponsor, please email

KnightKrawler Robotics is a 501(c)(3) non-profit organization. All contributions to the team are tax deductible. Please contact us first if you would like to make a large donation or need a W9 tax form.

Project Sponsors

The Mounds View Schools Education Foundation has donated $5,000 to be used for supplies.

3M is a King level sponsor of our robotics team. They recently donated two large rolls of PETG plastic for our shields. Click here to learn about our team sponsors.

Mounds View Public Schools has loaned us 3D printers and space to run our production shop.

How to Run a Shop

If you would like to run a face shield production shop but are in need of 3D printers, we recommend contacting your local school district. They likely have 3D printers that are going unused. If 3D printers are not an option for your group, there are some face shield designs available online that do not require 3D printing. You can also find a number of face mask designs for those that have a sewing machine.

Keeping your volunteers safe:

3D Printing Information

KnightKrawler is printing the Stratasys visor. This visor has been approved by the FDA and VA. KnightKrawler chose this design because it works with any clear plastic with a 3-hole punch. This makes it possible to replace damaged shields with basic office supplies without any special tools. Another popular design is the Prusa design, modified for the American 3-hole punch. This design is more durable, but takes 2-3 times longer to print. There are many options available and they are easy to find on the internet. If you are using a design that has not yet been approved by the FDA, please contact the facility to which you plan to donate, to ensure they will accept the design before you print them.

We have found that we can tweak the configuration of our printers and slicers to dramatically improve print speed. Many printers/slicers are configured for quality and detail. By adjusting your layers, and speed, you will see noticeable improvements. We have cut the time of our Stratasys prints down from 87 minutes to 56 minutes, per visor. PLA can typically print faster than other 3D printer filaments. You can take advantage of this fact by trying speeds above the default. PLA does not hold up as well to strong solvents, compared to PETG, but is more cost effective, prints faster, and has been approved by the FDA.

We are here to help. If you need advice on setting up a shop, 3D printing or anything related, please email

In the News

Irondale Robotics Team 3D Prints Face Shields

We visited Team 2052 KnightKrawler last week, one of many High School Robotics teams across the state working on printing face shields for health care workers.

Posted by CTV North Suburbs on Monday, April 13, 2020