5-Axis CNC Mill Setup Machinist

Ace Precision•Oconomowoc, WI

4d•Onsite

About The Position

About the role Ace Precision supports mission-critical programs across Aerospace, Power Generation, Defense & Space, and Aftermarket Repair & Overhaul. For more than four decades, we’ve built a reputation for craftsmanship, quality, and innovation. As we continue to grow, we’re looking for a 5-Axis CNC Mill Setup Machinist to join our manufacturing team in Oconomowoc or Menomonee Falls, WI . A day in this job You arrive to a clean, well-equipped cell and review the day’s work orders. Starting with the traveler, sketches, and product specifications, you map out the sequence of operations, select tooling, and plan offsets. You set up a 5-axis CNC milling center, load and verify the program, and run the first-off piece. Using bore gages, rail gages, and ID/OD micrometers, you confirm critical features meet close tolerance requirements. You document process data on SPC charts and make precise adjustments within defined limits. As production ramps, you confidently run multiple machines at once, watching for any sign of tool wear, dimensional drift, or finish variance, and correcting issues before they impact quality.

Requirements

High school diploma or GED.
At least 2 years of related machining experience and/or training; or an equivalent blend of education and experience.

Responsibilities

Interpret moderately complex sketches, routings, and specifications to determine dimensions, tolerances, and operational sequences.
Visualize multi-axis tool motion up to and including 5 axes to ensure safe and efficient setups.
Set up, adjust, verify CNC programs, and operate CNC milling centers and tooling.
Identify malfunctions and out-of-tolerance conditions; report and resolve process variations and deviations.
Operate multiple machines concurrently to maximize throughput and resource utilization.
Hold tight tolerances and surface finish requirements on metallic components.
Inspect parts using bore gages, rail gages, and ID/OD micrometers; record process data with SPC charts.

Benefits

Competitive pay with annual performance reviews.
Multiple shift options (day and night) with a 10% shift premium and compressed workweeks.
Voluntary overtime opportunities.
Comprehensive benefits: Medical, Dental, Vision, Short-Term & Long-Term Disability, and Life Insurance.
401(k) match up to 8%.
Work-life balance you can feel.
Paid vacation, personal time, and 9 paid holidays .
Paid parental leave.
Wellness program reimbursements.
Employee Assistance Program.
Safety & Wellness reimbursement.
Tuition reimbursement.
We provide the tools—no need to bring your own.
Equal Opportunity Employer, including Veterans and Individuals with Disabilities.