About Us

Company Profile

Solid Modeling Solutions provides advanced NURBS-based geometry libraries called SMLib, TSNLib, and NLib, and the subdivision surface library, SDLib. They encompass extensive definition and manipulation of NURBS curves and surfaces with the latest fully functional non-manifold topology. SMS is committed to regular enhancements through an established release schedule.

Company Background

Our company was formed in early 1998, founded with a commitment to deliver quality products and services with a strong commitment to responsiveness and partnership with our customers. Alliances were developed with GeomWare and IntegrityWare and the non-manifold topology features led to the initial SMLib product in mid-98. A new alliance was established in 1999 with HarmonyWare driven by close collaboration with our customers. This led to IGES, STEP, and VDAFS data translator products in 1999. In late 2001, Nlib was purchased from GeomWare, but a close strategic relationship with GeomWare has been maintained for future development and technical support. Enhancements and major new features are added twice-yearly. SMS is convinced that a small team of talented and motivated experts create better and more efficient products than large corporate projects.

Company Philosophy

SMS is committed to providing code to our customers in order to enhance and enable their understanding of the underlying technology, provide opportunities for collaboration, improve time to repair, and protect their investment. Web-based delivery of product delivery, maintenance, and communication has enabled SMS to be extremely responsive, among the best in the industry. SMS has no underlying debt, no hidden partners, and is totally employee owned. We are independent of any proprietary influences and totally committed to an open and responsive relationship with our customer base. SMS has established a very unique model of technical organization and an adaptive approach. Our pricing philosophy provides a stable base of technical expertise, and it is very cost-effective for our customers when viewed from perspective of total cost of ownership of complex software. A license for SMLib represents a fraction of what it would cost to develop and maintain the same capability in-house.

Our Team

Jim Presti

  • Co-founder and President of Solid Modeling Solutions, Inc.
  • MS in Mathematics, University of Illinois
  • Extensive management and project experience in systems software, CAD/CAM, and application integration
  • Technical developer of system software and project manager of a number of complex aerospace systems

George Celniker

  • Vice-President and Chief Technical Officer at Solid Modeling Solutions, Inc.
  • PhD in Mechanical Engineering from MIT
  • Dissertation: “ShapeWright: Finite Element Free-Form based Shape Design”
  • Numerous patents, published papers, and presentations
  • Development engineer in finite element modeling
  • Project manager in selecting and implementing new 3D CAD software
  • Defined technology and architecture for using geometric modeling to support GeoScience data analysis
  • Developed an interactive sub-surface velocity modeler for guiding seismic processing
  • Founded Advanced Geometry Concepts to commercialize the Deformable Modeling Technology developed as part of the M.I.T. Ph.D. thesis work
  • Co-founder and Chief Technology Officer for Geomenon Inc.
  • Significant expertise problem solving, system design, software development, software management, geometric modeling, mechanical design, numerical methods, dynamics, control theory, FEA, FEM, CAD development and applications

William Denker

  • Vice-President of Technology at Solid Modeling Solutions, Inc.
  • PhD Computer Science, Colorado State University
  • Dissertation: “Geometric Continuity of Rational Surfaces”
  • Expert in NURBS, advanced geometric modeling, and computer-aided geometric design
  • Extensive experience with commercial CAD systems
  • Publications in areas of rational geometry; surface continuity; variable-radius filleting; mathematical uncertainty in geometric modeling
  • Implementer of variable-radius filleting in several CAD systems, including ACIS®

Joseph Umhoefer

  • Vice-President, Emerging Technologies at Solid Modeling Solutions, Inc.
  • PhD Mathematics, Oregon State University
  • Dissertation: “Modeling Flow and Transport at Pore Scale with Obstructions.”
  • Focus: Computational mathematics, transport phenomena, multiscale modeling
  • Graduate Student Assistant, Lawrence Berkeley National Laboratory, Berkeley, California
  • Graduate Student Fellow, National Energy Technology Laboratory, Albany, Oregon

Steve Teodosiadis

  • Vice-President of Operations at Solid Modeling Solutions, Inc.
  • Over 18 years experience developing 3D modeling software for a variety of design applications
  • Former software engineer with Applied Geometry, Alias, Wavefront, AutoDesSys, BobcadCam, LHR
  • Experience using various geometry libraries including Applied Geometry, Acis, and SMLib
  • Graduate of UC Berkeley and UCLA. in Architectural design and 3D computer graphics applications

Sol Foster

  • MS in Mathematics, University of Michigan
  • BS in Mathematics and Computer Science, University of Michigan
  • Founder and President of HarmonyWare, Inc.
  • Many years of working data translation problems using various product data formats

Libby McCalmont

  • Vice President, Business Administration and Presales at Solid Modeling Solutions, Inc.
  • Over 10 years of business administration experience
  • BA, Whitworth University
  • AA, Art institute of Seattle in web design

Mary McFarlin

  • Vice President, Finance and Treasurer at Solid Modeling Solutions, Inc.
  • Over 20 years of financial management and treasurer experience
  • MA, Pacific Lutheran University
  • BA, Westmont College

Robert Blomgren

  • Co-founder and retired Vice President of Solid Modeling Solutions, Inc.
  • PhD Mathematics
  • Early pioneer in formulating the NURBS representation
  • Developer of TIGER geometry at Boeing
  • Co-founder and former President of Applied Geometry, Inc.
  • Co-developer of AGLib, the first commercial NURBS library, that was sold to Alias Research in 1994
  • Article “NURBS at Boeing”

Wayne Tiller

  • PhD Mathematics
  • World renowned NURBS expert
  • Founder and retired president of GeomWare, Inc.
  • Implementor of Nlib, a component of SMLib
  • Co-author of “The Nurbs Book”, the classic in the NURBS field
  • Leading NURBS researcher and implementor at SDRC, 1980’s
  • Article “NURBS at SDRC”