Streamline your manufacturing with precision metal prototypes and low-volume metal production parts that would be impractical or cost prohibitive to machine. We create metal parts using a fiber laser fired onto a metal plate, repeatedly adding layers of powdered metal and fusing them to previous layers. Although the resulting part is accurate with excellent surface quality and mechanical properties, additional post-processing is also available.

General tolerances for DMLS parts are ±0.005 inch for the first inch and ±0.002 inch per inch thereafter (±0.2 percent), but +/-0.002 inch is achievable in some materials. If CNC tolerances are required, parts will require post-machining.

In-House Post-Processing

  • Support removal
  • CNC secondary machining (critical dimension and re-qualification)
  • Tapping, threading, and helicoils
  • Vibratory polishing and surface treatment
  • Annealing and age hardening
  • Painting and finishing

Midwest Composites uses EOS and SLM build platforms.

  • Maraging steels, stainless steels, and aluminum are run daily.
  • Titanium and Inconel are also available.
  • The build volume for the SLM is 11 x 11 x 13.8 inches.
  • The build volume for the EOS is 9.85 x 9.85 x 8.5 inches.

Benefits of Metal Prototypes





“Midwest Composite did all our samples and prototypes. They can handle pretty much whatever you need.”
“You’re the man! Thanks again. You’re making me look good.”
“Just want to say thanks so much for your hard efforts on all these orders. You guy’s rock!”
“You are my hero!!! Thank you!!”
“Just got the parts and they look great! Thanks again for turning these around so quickly. Thanks, the prototype was well-received by our customer.”
“Thank you very much for welcoming us into your facility today! It is quite impressive and was a great experience for the whole team. We appreciate the valuable time that was dedicated to our group.”
“Thanks again for being so reliable. It’s always an easy decision to take our requests to you. All of the prototype parts that you made for me turned out perfect! Thank you again for your timely delivery and high-quality output.”
“Thanks! Such great work and a very quick turnaround. Thanks so much for getting us those SLS parts, our customer was EXTREMELY happy with the finish and send their thanks.”
“Everyone that stopped by came away very impressed with the quality and attention to detail. Our display had all of the moving parts where we could show off all of the new features. Also, the way it was packaged, there was zero damage whatsoever. Thanks again for all of your help on this!”
“I just got back into the office today to find my handles here. I opened the boxes and was really impressed! These are beautiful!”
“THANK YOU for your excellent service!!!!”
“Wanted to send you a quick email thanking you very much for your impressive work on this crazy intricate part. The parts look great and I appreciate the fast response. Thank you!”
“Thanks so much Helmut, I certainly am glad you can get it taken care of!”
“We have got a lot of tooling back from your shop and everything seems to look good. I just wanted to send you and your team a note of gratitude. Your timing and quality have been great.”

Let’s get started today. Contact Us