
The most expensive mistakes in composite manufacturing are rarely discovered during design. They surface during tooling, when a geometry that looked fine on screen turns out to be difficult to mold, and correction means scrapped investment and schedule delay.
A structured design-for-manufacturability review, conducted before tooling begins, identifies geometry, material, and tolerance issues while they are still inexpensive to fix.
This post walks through what actually happens during CMI’s design review and why catching issues early protects the timeline and budget.
Start Your Program’s Design Review today. Bring your current design to CMI’s engineering team, however complete or incomplete, for a DFM assessment before tooling decisions are made. Catching a geometry, material, or tolerance issue now costs a conversation; catching the same issue after tooling has been committed costs scrapped investment and a delayed schedule.
As outlined in CMI’s comparison of engagement models, Build-to-Print vs. Turnkey Composites, the cost of a design correction rises sharply at every stage a problem goes undetected. A design issue caught during review costs a revision; the same issue, caught during tooling, costs a scrapped mold investment.
According to CMI’s in-house engineering team, geometry feasibility, material validation, and tolerance review are the three checkpoints that catch the majority of manufacturability issues, a process described in more detail on CMI’s In-House Design & Engineering page.

As detailed in CMI’s materials performance documentation, How Carbon Fiber Behaves Under Impact and Load Cycling, material specifications that don’t account for real load or thermal conditions are among the most common findings, along with geometry that’s difficult to mold and tolerances that exceed what the process can achieve.
For validated designs, the program moves directly into the production stages described in Composite Manufacturing & Assembly. For designs that need revision, CMI’s team resolves the issue before tooling begins.
Whether a program is built-to-print or turnkey, this review happens before tooling is committed. It’s a standard checkpoint, not an optional add-on.
A design-for-manufacturability review evaluates whether a design can be manufactured to specification within cost, performance, and timeline targets before tooling begins.
Yes, regardless of the engagement model, because tooling commitment is the most expensive and least reversible decision point in the process.
CMI’s team works directly with you to resolve the geometry, material, or tolerance issue before tooling begins.
Timelines vary based on design complexity. Contact CMI to discuss a timeline specific to your program.
Complete engineering drawings, 3D CAD files, and material specifications are ideal, but a review can begin without complete documentation.
Yes. A thorough review evaluates mold flow, cure behavior, and structural performance under load.
It adds time upfront but prevents the larger schedule impact of a late-stage redesign. Read more about engagement model decisions.
Geometry features that are difficult to mold as originally designed, followed by material specifications that don’t account for the part’s actual environment.
Scope and cost depend on your specific program. Contact CMI to discuss how design review fits into your quote
Bring your current design, complete or in progress, to CMI’s team.
Start Your Program’s Design Review. Bring your current design, complete or still in progress, to CMI’s engineering team for a DFM assessment before tooling decisions are locked in. This is a standard checkpoint in CMI’s process for every program, not an upsell, because it’s the cheapest place in the entire development cycle to catch a problem.