News - Aztalan Engineering

You Can Increase Your Production by Using CNC Prototyping

In order to be competitive in today’s world, an original equipment manufacturer or OEM must utilize advanced technology. One such technology is CNC prototyping. With it, a company that needs thousands, if not millions of specialized spare parts in its assembly plant, will be able to produce them in just a short time compared to how long it was done using old technology.

What is CNC Prototyping?

Basically, it is the fast production of prototypes (of spare parts of machines) using computer numerical control machines. There is no human intervention in these machines that is why the production of prototypes is at a fast rate. The design of the spare parts is fed into the internal computer of the machine and the prototype of the spare parts is made wholly by the machine itself.

Since there is no human intervention in the prototyping, there is no possibility of error. This is the reason why this type of prototype production is the one being used for the production of medical, aerospace and specialized engineering spare parts and components.

Prototyping Is Our Specialty

At Aztalan Engineering, CNC prototyping is one of our specialties. Our use of this advanced technology enables us to provide a competitive edge to our customers. By the use of CNC machines, we are able to speed up our design and prototype production process.

High Quality Standards

Thus, we are able to produce the required items ahead of our competitors while not compromising with the results. That means even if our production process is faster, our high-quality standards remain the same.


Every prototype that we turn out in our CNC machines have the same high degree of accuracy, with the same specifications as called for in their design and are given the same level of attention by our engineers and technicians.

This is the kind of high-quality standards of work for which Aztalan Engineering is known. That is why our customers in the medical, engineering, defense and aerospace industries have continued to patronize our machining services because we don’t compromise with the quality even if our production rate is fast.

Job Opening: Machinist

Position: Machinist

Hours: Second & Third Shift

Location: Lake Mills, WI

This position is responsible for inspection, and production of precision machined parts on various CNC lathes and milling machines.

Wage Range: Depends on skill level and experience.

Our Key Requirements

  • Ability to read, interpret, and edit machine code – Preferred
  • CNC Machining experience
  • Capable of calculating and adjusting tool speeds & feeds to match machining conditions
  • Knowledge of cutting tools, their application, and various grades and designations
  • Knowledge of and ability to use tradition inspection tools to verify part dimensions
  • Ability to use CMMs, surface measuring equipment, and optical inspection equipment to verify part dimensions’
  • Ability to read and accurately interpret part prints and Geometric Tolerancing
  • Ability to make recommendations for process improvement
  • Solid problem solving skills
  • Ability to use standard shop math and trigonometric functions
  • Good written and verbal communication skills
  • Ability to maintain a clean and organized work area
  • Good interpersonal skills
  • Duties will change as dictated by product demand and customer specifications.  Other duties may be assigned.

Job Opening: Operators

Position: Operators

Hours: Second & Third Shift

Location: Lake Mills, WI

This position is responsible for production of precision machined parts on various CNC lathes and milling machines.

Wage Range: Depends on skill level and experience.

Our Key Requirements

  • Capable of running part programs on various CNC machines
  • Ability to change tools and continue running the machine with minimal help
  • Knowledge of and ability to use tradition inspection tools to verify part dimensions
  • Ability to use CMMs, surface measuring equipment, and optical inspection equipment to verify part dimensions
  • Ability to read and accurately interpret part prints
  • Solid problem solving skills
  • Good written and verbal communication skills
  • Ability to maintain a clean and organized work area
  • Good interpersonal skills
  • Machine Operator operates machines as directed by supervisor.  The work is spot-checked in progress and upon completion for compliance with part print, instructions and established procedures.

Precision Medical Products Can Only Be Produced by CNC Machines

The only way you can produce precision medical products is by using CNC machines. These medical products must be produced strictly according to the specifications since they will be used in treating and saving the lives of people. With this, you need a special machine to turn out such a type of high quality products. These machines are called computer numerical control (CNC) machines.

Job Opening: Human Resources Assistant

Position: Human Resources Assistant

Hours: 8:00am – 4:00pm

Location: Lake Mills, WI


The Human Resources Assistant assists with the administration of the day-to-day operations of the human resources functions and duties.  The HR Assistant carries out responsibilities in some or all of the following functional areas: departmental development, HRIS, employee relations, training and development, benefits, payroll, executive administration, and employment.

Wage Range: $16.00+ depending on experience and willingness to learn

Our Key Requirements:

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

    • employee services;
    • maintaining employee files and the HR filing system;
    • The day-to-day efficient operation of the HR office;
    • assisting with employee orientation and training logistics and recordkeeping;
    • assisting with employee relations;
    • company employee communication;
    • compensation and benefits administration, recordkeeping;
    • assisting with recruiting and staffing logistics;The HR Assistant has partial responsibility for these areas:

The Human Resources Assistant contributes to the accomplishment of Human Resources practices and objectives that will provide an employee-oriented, high performance culture that emphasizes empowerment, quality, productivity and standards, goal attainment, and the recruitment and ongoing development of a superior workforce.

  • The Human Resources Assistant helps with the implementation of services, policies, and programs; reports to the Human Resources Manager, and assists company managers with HR issues.

    Primary Objectives:

    • Safety of the workforce.
    • On-going development of a superior workforce.
    • On-going development of an employee-oriented company culture that emphasizes quality, continuous improvement, and high performance.
    • Personal ongoing development.

    Development of the Human Resources Department

    • Administers programs, procedures, and guidelines to help align the workforce with the strategic goals of the company.
    • Participates in developing department goals, objectives, and systems.
    • Prepares periodic reports for management, as necessary, or requested.
    • Assists with the tracking of departmental and company measurements that support the accomplishment of the company’s strategic goals.

    Human Resources Information Systems (HRIS)

    • Maintains the HRIS database and generates scheduled or requested reports to assist management.
    • Periodically audits the database to ensure accuracy.
    • Assists in the development and updating of the Human Resources section of the Web site.
    • Keeps employee records up-to-date by processing employee status changes in a timely manner.
    • Maintains personnel files in compliance with applicable legal requirements.

    Benefits Administration

    • Assists in benefit orientations and other benefit training, as needed.
    • Processes enrollments, changes, and terminations of participants in all benefit plans and programs.
    • Reconciles monthly billing statements against payroll deductions.
    • Assists employees with any benefit claim issues or concerns.

    Training and Development

    • Schedules participants into training sessions.
    • Tracks participants and training records.
    • Enters training records into database and maintains it.


    • Advertises employee job openings internally and externally in keeping with company recruitment policies. Manages the logistics of the recruiting process.
    • Writes newspaper classified ads and posts ads on the Internet in places appropriate to the open position including job boards, college career services offices, professional associations, and on the company’s Web site.
    • Sorts and reviews resumes as they arrive on a daily basis. Manages the flow of paper applications. Maintains a filing system that retains qualified applications for one year.
    • Schedules interviews for the hiring manager. Schedules additional interviews as needed.
    • Makes sure that the work space, computer and other equipment, mailbox, and appropriate installed software are ready for the new employee’s start day.
    • Assists in conducting new-employee orientation.
    • Prepares paperwork required for new hires and establishes personnel file.
    • Assists the plant and front office with temporary staffing needs by contacting and working with the Temporary Staffing Agency.
    • Emails time sheets to Temporary Staffing Agency for payroll processing.

    Employee Relations

    • Assists in any changes for employee handbook and new personnel policies and procedures.
    • Assists with the implementation and tracking of health programs.


    • Process bi-weekly payroll as a back-up to the Human Resources Manager
    • Maintains accurate and up-to-date payroll processing system.

    Executive Administration

    • Sorts mail and faxes; distributes to employee mailboxes.
    • Assists with Board of Directors meetings.
    • Consolidates and emails out correspondences throughout the company.
    • Orders flowers and cards for employees for events such as illness, death in family, birth, graduation, and so on.
    • Greets guests
    • Answers incoming phone calls and distributes to correct person


    • Assumes other duties as assigned by the HR Manager.

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.

    • Accomplished in Microsoft Office products with general knowledge and capability in operating data processing products supporting HR databases and payroll processing systems.

Human Resources Assistant Requirements

  • Excellent computer skills, including Word and Excel in a Microsoft Windows environment.
  • Effective oral and written communication skills.
  • General knowledge of various employment laws and practices.
  • Experience in administration of benefits and other HR programs.
  • Excellent interpersonal skills.
  • Skills in database management and record keeping.
  • Able to exhibit a high level of confidentiality.
  • Excellent organizational skills.
  • Must be able to identify and resolve problems in a timely manner.
  • Must be able to gather and analyze information skillfully.


  • Accomplished in Microsoft Office products with general knowledge and capability in operating data processing products supporting HR databases and payroll processing systems.


  • A Bachelor Degree or equivalent experience is required.
  • One to two years of general business experience, Human Resources experience preferred.



PHYSICAL DEMANDS. The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.  Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. 

While performing the responsibilities of the Human Resources Assistant’s job, the employee is required to talk and hear. The employee is often required to sit and use their hands and fingers, to handle or feel and to manipulate keys on a keyboard. The employee is occasionally required to stand, walk, reach with arms and hands, climb or balance, and to stoop, kneel, crouch or crawl. Vision abilities required by this job include close vision.

WORK ENVIRONMENT. The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.  Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.  

While performing the duties of this job, the employee is occasionally exposed to moving mechanical parts and vehicles. The noise level in the work environment is usually quiet to moderate.

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

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.

The Big Picture On Small Medical Device Components

Having an idea for a new medical device that can treat a condition, restore mobility, help to alleviate pain or discomfort or to give someone a chance to get back to a healthy life is an amazing opportunity for a company. However, it is also just the very tip of the iceberg when it comes to actually getting the device designed, prototyped, tested, approved, produced and then marketed.

At Aztalan Engineering, Inc., we have worked with small medical device companies and some of the leaders in the industry. We understand the challenges and the steps in design to production of these devices. With our experience in the precision manufacturing of medical device components, we are also uniquely positioned to work with your team throughout the process.

Engineering Support

In the design stage of any medical device components, our engineering team can work with your design and engineering team. This allows us to share our expertise to avoid extensive revisions of the design which will slow down the process and extend the time to approval and market.

Our engineers can also assist your design team in selecting the most appropriate materials. We understand the different requirements in materials for various classes of medical devices, which can make selecting the lowest cost and best-suited material much easier.

Cost Analysis

We can run a DFMA or Design for Manufacturability an Assembly report for you on the design once it is developed. This will allow your company to review the current cost of production. We can often suggest alternative materials or even different machining and manufacturing options that will achieve the same desired results in your medical device components while helping to lower overall production costs.

By taking advantage of these services, prior to the prototype development, project management and full production services we offer, your company can streamline this initial stage of the process. We can customize our services to meet your needs, making it a cost-effective option at any stage of development.

The Role Of Quality Control In Producing Precision Machined Parts

In many different industries from parts and components for firearms to robotics and medical devices, precision is critical. Not only is precision important for the functioning of the device or system, but it is also required for safety, long life cycles and perhaps even for life-saving technology.

The best companies that specialize in precision machined parts understand the importance of quality control the production of the final component. They see this as not just a certificate or an ideal that represents the company publically, but rather as the central and driving force throughout the production process.

Training and Certification

When the company is focused on manufacturing precision machined parts, there is a focus on training of the staff in quality control. Most of these top companies will move forward with ISO 9001 certification, which is specific to developing a company-wide approach to quality.

Additionally, companies producing medical devices and orthopedic or dental implants will also have ISO 13485 certification, which is specific to medical device production. A few companies may also have additional certification, including AS9001C. This is granted by the NSF-ISR and applies specifically to the production of aviation, space and defense quality management system certification.

Bottom Up Quality Control

A unique approach to quality control offered by the best companies manufacturing precision machined parts is the bottom-up, company-wide quality control system. This means that everyone in the company is focused on quality control and is aware of the appropriate inspections and requirements that are in place.

This allows each employee to be responsible for quality management, rather than depending on line managers or final product inspection to detect a problem. With this continual observation by employees combined with CNC equipment and continual data collection, the process is maintained to the quality standards set by the company.