CNC Foam Cutting vs CNC Routering for 2D Parts
Challenge
The customer needed to produce thousands of 2D foam trees and other objects for window displays at their hundreds of stores nationwide. Our routers couldn't keep up.
Enter our new CNC foam cutter ...
Thankfully, our customer bought into our idea, and the results were outstanding.
Key Product
CNC foam-cutting service
Altar’d State
Our client is a rapidly growing women's fashion and lifestyle brand, founded in 2009 and headquartered in Maryville, Tennessee.
With over 100 boutiques across 30 states, they offer a distinctive shopping experience featuring the latest fashion finds, sought-after accessories, charming home décor, and gifts.
The Challenge
A national retail customer approached us with a massive order: 9,600 foam display parts — primarily 2D tree shapes — to be installed in hundreds of stores across the country.
Initially, we tried to meet the demand using our CNC routers, but two major issues surfaced:
Speed bottlenecks – routers could only process one sheet at a time, each taking 12 minutes to cut.
Poor paintability – the routered foam surfaces absorbed too much finishing paint, resulting in inconsistent aesthetics and added labor.
It became clear that our current setup wouldn’t keep up — either in time or quality.
The Pivot: Switching to CNC Foam Cutting
To solve the problem, we moved to a dedicated hotwire CNC foam cutter. This machine allowed us to cut 64 sheets in a single run, drastically improving throughput. However, this switch wasn’t plug-and-play.
The nature of hotwire cutting meant we had to redesign any part that had internal cutouts ("isles") to allow for wire entry and exit. This redesign effort was significant — but essential.
"When the team at Wired4Signs USA proposed switching to CNC foam cutting, we trusted their expertise — and we're glad we did.
The quality was excellent, the turnaround was fast, and they delivered 9,600 parts exactly when we needed them."
Parts to cut
9600
XPS Sheets
1200
Router Cut Time
240hrs
Foam Cutter Time
24hrs
The Results
9600 Parts Completed On Time
Using 1.5" foam sheets, each 4'x8' sheet yielded 8 parts
Total of 1,200 sheets processed
Hotwire foamcutter handled 64 sheets per batch, completing the full job in under 24 hours of machine runtime
Production Efficiency Jumped >5×
Router: 12 minutes per sheet
Foam cutter: 76 minutes per 64-sheet batch
Throughput increased exponentially, with fewer operator interventions
Superior Paint Finish
Hotwire-cut surfaces were clean and sealed, eliminating the router’s issue of excessive paint absorption
No primer required, resulting in reduced material and labor costs
Scalable and Repeatable
This method can now be reliably applied to future nationwide campaigns with confidence in output and consistency