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$
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I will optimize plastic part geometry for injection molding dfm and cad tweaks
Dennis
About this gig
Is your plastic part getting rejected by the mold maker? Sink marks, warping, and undercuts kill projects before tooling starts. I optimize plastic part geometry for injection molding so your design is cheaper to tool, easier to eject, and consistent in production.
What I do
- Injection molding DFM review
- Draft angle addition and correction
- Uniform wall thickness optimization
- Rib, boss, and gusset redesign
- Sink mark and warpage prevention
- Undercut removal and simplification
- Parting line and ejection direction check
- Fillet, radius, and corner cleanup
- Snap fit and living hinge tweaks
- Core and cavity split preparation
- Tolerance and shrinkage allowance advice
- Minor CAD edits on existing models
- Model repair and format conversion
What you get
- Optimized 3D model in STEP or STP
- Editable source file when included
- DFM notes with clear recommendations
- Screenshots of problem areas and fixes
- Mold friendly geometry ready for tooling
- Revisions based on your package
Send your CAD file, material type, expected volume, and molder feedback if you have any. Message me first so I can review the part and confirm the right package.
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 Dennis
Dennis
INDUSTRIAL AND PRODUCT DESIGN
- FromGermany
- Member sinceJul 2026
- Avg. response time5 hours
Languages
English, German, French, Spanish, Italian
I’m a CAD/BIM designer who turns rough ideas into accurate, manufacturable solutions without making your engineer or manufacturer tired. My expertise includes Revit modeling for hot rolled and cold formed steel structures, Rhino 3D/SubD and Grasshopper parametric design, Zuken E3 wire harness routing and flat patterns, plus injection molding DFM and minor CAD tweaks. I developed my professional approach through detail focused 3D modeling, fabrication planning, and production ready design. Send your sketch, PDF, or CAD fileI’ll help make it fit, flow, and function.
FAQ
What do you need to start?
Your 3D file in STEP, IGES, STL, or native format, plus material, wall thickness, and production details.
Can you work on STL or scanned files?
Yes, but STL edits are limited. A solid CAD model gives much better results.
Do you add draft angles?
Yes, draft angles are applied based on your material, texture, and pull direction.
Do you provide mold flow simulation?
No. I focus on geometry optimization and DFM, not simulation analysis.
Do you design the full mold tool?
Not in these packages. Core and cavity split is available as an extra.
Which formats do you deliver?
STEP, STP, IGES, X_T, STL, PDF, and native CAD files where included.
Can you reduce my part cost?
Yes, by simplifying geometry, removing undercuts, and improving moldability to reduce tooling and cycle time.
