The Importance Of Precision CNC Machining

One of the valuable aspects of the services provided at Aztalan Engineering, Inc. is our commitment to precision and accuracy with every part and component we manufacture.

While some companies offer precision CNC machining as part of the services they offer in their shop, at Aztalan Engineering, Inc. it is a focus. We work with companies of all sizes looking for parts manufactured from metal alloys, plastics, and composite materials. Over the years we have worked with very specialized metals such as titanium, Inconel, Hastelloy and MP35N. We have also have extensive experience with aluminum, alloy steel, stainless steel, nickel, copper, and brass.

Of course, with more and more industries moving into plastics and composites, we have also expanded to offer precision CNC machining with these materials as well. We can work with acrylics, nylon, polyurethane, Teflon, Ultem, Ketron PEEK, Acetal, and PVC as well as many others. This is a very different process than working with alloys and one that many machining services don’t provide.

The Importance of Precision

We also understand how these different materials respond to different machining processes. This combination of knowledge, expertise and real-world experience in working with these materials allows us to choose the best precision CNC machining option for the given part or component.

With this advantage, your design team can rely on our engineers to provide the relevant information on options and choices. This can cut considerable time off the design stage and also decrease the chances of a design or material flaw being found during the design testing phase.

Our focus on precision and tight tolerance manufacturing is an experience that will benefit your team. With our state-of-the-art equipment and our highly trained operators and technicians, we can produce the prototype and then move into full-scale production as and when you require.

Job Opening: Programmer

Position: Programmer

Hours: 8:00am – 4:00pm

Location: Lake Mills, WI

The purpose of this position is to create, maintain, support CNC programs, as well as to create and maintain specific work instructions to support the machining operations.

This position will also be instrumental in supporting machinists with various problems with programs and processes.

Wage Range: Salaried position varies anywhere from $60,000 – $90,000/year


Our Key Requirements:

ESSENTIAL RESPONSIBILITIES include the following: [Other duties may be assigned.]

  • Create and maintain CNC programs
  • Create and maintain machine set-up sheets and program revision history
  • Assist in set-up and prove out of new CNC programs
  • Support machinists with problem solving and troubleshoot programs as needed
  • Design and be able to pick out proper tooling for new and current programs
  • Continually look for process improvement, cycle time reduction, and set-up time reduction
  • Attend New Part Meetings, Pre-Production Meetings, and Programmer Meetings
  • Deliver completed CNC programs to workcells as needed and on time in order to meet customer requirements
  • Update old CNC programs
  • Participate in workcell team building and lean efforts
  • Other duties as assigned

QUALIFICATIONS.  To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.  The requirements listed below are representative of the knowledge, skill, and/or ability required.  Reasonable accommodation may be made to enable individuals with disabilities to perform the essential function.

  • This position requires a thorough understanding of CNC programming, machining, and processes that go along with manufacturing
  • This position requires a thorough understanding of metal cutting tools, holders, fixtures, and workholding
  • This position requires an operational understanding of the functions of a CNC machine tool and the machine tool controller including complex multi-axis and multi spindle machine tools
  • Valid driver’s license
  • Must possess sufficient skill in oral and written English to present a professional level of communication with management and employees


  • Proficient in CNC programming
  • Proficient in CAD/CAM software


  • High School education or equivalent per hiring personnel
  • Generally two or more years of programming experience

Generally three or more years of experience in a machine shop or similar manufacturing environment.  Must be experienced in using traditional inspection tools (micrometers, calipers, bore gages, indicators), surface plate inspection methods (using gage blocks, indicators, sine bars) and have some basic skills using a CMM and Optical Comparator

Please note:  Not all key requirements need to be met by a candidate, but willingness to learn and work as a team is a must.

AEI offers a wide range of benefits including:

Medical, Dental and Vision Insurance

Employee Stock Ownership Program (ESOP)

Retirement/Savings Plans (401K)

Short and Long Term Disability

Life and Accidental Death & Dismemberment Insurance

Employee Assistance Program

Term Life Insurance

Flexible Spending Accounts & Health Reimbursement

Personal Time Off including sick pay

Floating Holidays

Paid Holidays

Tuition Reimbursement

Our Application Process
Email your Resume and complete an online Employment Application, expressing your talents, skills, successes and career objectives to Sarah Cummings at

Choosing the Precision Machining Company that Best Suits Your Needs

Precision machining is responsible for producing a multitude of intricate components that we use on a day-to-day basis; each piece requires the skill of a detail-oriented, highly trained machinist. Therefore, choosing the precision machining company that best suits your company’s needs is not a decision to take lightly. No matter your industry – from aerospace to medicine to energy – choosing a reliable company to meet your precision machining needs is imperative.

Aztalan Engineering Welcomes Senator Johnson

Aztalan Engineering Welcome Senator Johnson
Aztalan Engineering Welcome Senator Johnson

Aztalan Engineering welcomed Senator Johnson to Lake Mills on May 27, 2014 where the main focus was how manufacturers look to attract young professionals that are excited about moving the company forward without turning to big government to forge the way. Senator Johnson took a few minutes to discuss the national debt and solvency of social security, while stressing the need to scale back on relying so heavily on the federal government. However, the visit was centered on the innovative ways manufacturers can meet their needs of acquiring skilled laborers by the way of community and local education involvement. Aztalan Engineering is embracing these ideals with programs they have put into place themselves.

You Are The Reason We Are Aztalan

Dirk Maroske - President of Aztalan
Dirk Maroske – President of Aztalan

On February 12th, Dirk Maroske, President of Aztalan Engineering, met with the entire team to discuss the future growth and success of the company, and how each individual plays an important role in that future. Laying out the road map to 2015, Dirk showed how prototyping, innovation, people, growth, and service were the key strategies to achieving the goals set for the next year.

“Driven by our customers, we need to further increase our efforts and invest in innovation to become more competitive as a manufacturer of precision parts,” Dirk explained. This refined focus, among others, stemmed from previous focus group sessions the Aztalan management team engaged in earlier in the year.