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$
USD
I will inspect your cad model for injection moldability and fix draft angles
LIAM
About this gig
Before spending thousands of dollars on expensive factory tooling, your product model must be checked for moldability. Minor errors like zero draft, thick walls, or hidden undercuts can lead to sink marks, trapped air, or total tool failure.
I provide complete DFM Design for Manufacturing inspections and CAD modifications for plastic injection parts, ensuring your model is factory ready.
What this gig covers;
Draft Angle Analysis identifying zero draft walls and vertical friction points
Wall Thickness Audit preventing sink marks, warping, and uneven cooling
Undercut Detection & Parting Line Setup simplifying core/cavity splits
Direct CAD Fixing adding proper draft, fillets, and uniform wall thickness
If your supplier requested DFM fixes or your CAD software flagged undercut errors, send over your STEP or IGES file. I will review the geometry, fix structural issues, and send back fully optimized, tool-ready files.
Don't risk costly tooling re-works. Send your model over for a comprehensive moldability check today!
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
Get to know LIAM
LIAM
Expert CAD Designer Plastic Enclosures, DFM Mold Tooling
- FromUnited States
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, Spanish
Hi! I'm a mechanical CAD designer expert in 3D product development, DFM analysis, and mold tooling. I help startups, engineers, and makers transform rough product ideas into production ready physical parts. From 3D printable silicone and resin molds to complex plastic injection housings, I focus on clean geometry, precise tolerances, and fast turnarounds. Whether you need an STL file for rapid prototyping or core/cavity splits for manufacturing, I deliver practical engineering solutions that fit your budget. Let’s bring your hardware concept to life!
FAQ
What 3D file formats do I need to send for a DFM check?
Standard 3D CAD exchange formats work best, such as STEP (.stp / .step), IGES (.igs), or Parasolid (.x_t). If you only have a native file from SolidWorks, Fusion 360, or Inventor, you can send that over directly as well.
Will you fix the CAD model directly, or just tell me what is wrong with it?
It depends on the package you choose. The Basic package provides an visual inspection report highlighting draft errors, wall variations, and undercuts. The Standard and Premium packages include direct geometric fixes, meani
My mold maker said my model has "undercuts." Can you fix this without changing my outer product look?
In most cases, yes. Undercuts can often be resolved by adding slight draft angles, adding internal shut-offs, or adjusting feature heights. If an undercut is essential to your part's function, I wi
