Isometric Micro Molding, an NMT Company

INNOVATIVE MICRO MOLDING & MICRO AUTOMATION SOLUTIONS

• Small Parts with Micro Features and/or Tight Tolerances
• Micro Sized Parts
• Micro Automated Assemblies

Isometric is a vertically integrated micro injection molding and automated assembly company serving high precision market segments in medical device and drug delivery. Our specialized competencies in 3D micro printing, micro tooling, micro molding, micro automated assembly, and CT scanning provide our customers with complete in-house capabilities. Components and assemblies are rigorously managed using a tailored, proven process to mitigate risk and quantify customer-specific milestones. From initial concept to high volume production, projects are managed by an experienced team that has designed, built, processed, and produced numerous parts and assemblies for high precision markets.

CORE MICRO CAPABILITIES

"I DIDN'T KNOW THAT WAS POSSIBLE!"

Isometric has been a trusted micro injection molding partner for over 30 years. From small parts (<6″) to micro-sized parts and assemblies, we are able to achieve tight micron tolerances and greater project success by designing, building, molding, and assembling the complete micro solution all in-house–and under our control.

IN-HOUSE CORE COMPETENCIES

MICRO 3D PRINTING

• Parts in hand 2 days to 1 week
• DfM/DfA reduces costly project failures and timeline slips
• Multiple designs printed at the same time for side-by-side comparison
• 3D printing mold inserts in photopolymers and ceramic
• Molded in the intended thermoplastic in <2 weeks

MICRO TOOLING

• THE Enabling technology to micron tolerances
• Submicron tool building capabilities
• Development to production tooling
• Multi-cavity and 2-shot molds
• Tooling maintained for life of the program by the same experienced tool makers

MICRO MOLDING

• Micro-sized parts smaller than a single pellet of resin
• Small parts (<7”) with:
  • Micro features
  • Thin walls
  • Tight tolerances
  • Complex geometries
• In-depth knowledge of resin materials:
  • Thermoplastic resins including PEEK
  • Bioresorbables
  • Fluoropolymers
  • Liquid silicone rubber (LSR)
  • Long term implantables
• High precision micro molding for medical and drug delivery devices, including:
  • Catheter tips
  • Life science disposables
  • Microfluidics
  • Micro molded needles and barbs
  • Optics
  • Sensors
  • Transdermal patches
  • Wearables

MICRO AUTOMATED ASSEMBLY

• Miniaturized manual assembly is cost and yield-prohibitive
• Reduces damage, bioburden, manual labor, scrap, and the need to regain positional datum structure
• In-line 100% inspection and part testing
• +/- 1.5 micron positional accuracy

CT SCANNING

• View a 360-degree point cloud from DOE process development in less than 20 minutes
• Detects deviations in the actual part against the original 3D CAD design confirming design intent
• Data at the micron level in all axes
• Inside the part view of polymer:
  • Bubbles
  • Inclusions
  • Voids
  • Assembly bonding layers

ROBUST RISK MITIGATION

• Internally developed Microns Matter® PFMEA Process
• Design for Manufacturability (DfM) and Design for Assembly (DfA)

WHAT IS MICRO MOLDING?

When it comes to micro molding or micro injection molding, many think the process is simply injection molding for small, intricate parts. However, standard injection molding processes usually do not work when parts are smaller than a pellet of resin, have thin walls or micro features. Other factors come into play including mold design and expert mold fabrication, and the materials being used.

To put size into perspective, micro molding encompasses:

• Parts that are a fraction of a pellet of resin in size
• Parts that weigh fractions of a gram
• Parts with a wall thickness ranging from 0.001 to 0.015 in. (25 to 375 microns)
• Mold core diameters less than 0.0008” (20 micron)
• Parts or sub-assemblies requiring 0.002” (50 micron) tolerances or less
• High length-to-thickness (L:T) aspect ratios (currently up to 400:1)
• Larger parts up to 7” long that have micro features, thin walls, micro holes, complex geometry and/or tight tolerances