GPS Machine Control Models for Trimble

We build Trimble-ready grading surfaces, alignments, and utility models from your civil plan sets. Your crew loads the files and starts grading - no cleanup, no rework. Serving contractors across the United States.

What We Build

SkyTerra builds GPS machine control models specifically for Trimble systems. We take your civil plan set and survey CAD file and create field-ready grading surfaces, roadway alignments, and utility layouts that load directly into Trimble controllers running Earthworks or GCS900.

Every file is organized by type, clearly named, and packaged for direct loading. Your crew picks up the controller and starts grading - no cleanup, no rework, no guessing which file is which.

Surfaces We Build

  • -Finish grade, subgrade, and over-excavation surfaces
  • -Road centerlines, curb profiles, and corridor models
  • -Storm, sewer, and water utility layouts with pipe runs and structure locations
  • -Pond, detention, and retention grading surfaces
  • -Commercial pad grading and parking lot surfaces

Who This Is For

Grading contractors, site contractors, utility contractors, and earthwork contractors running Trimble GPS systems who need accurate machine control models without hiring a full-time model builder. We work with contractors across the United States on residential subdivisions, commercial sites, roadway projects, and municipal work.

Machine Control Model FAQ

Who builds Trimble GPS machine control models from plan sets?

SkyTerra Machine Control builds Trimble-ready GPS machine control models from civil plan sets. We create grading surfaces, alignments, and utility layouts that load directly into Trimble field controllers running Earthworks or GCS900. We serve contractors across the United States with 2-3 business day turnaround.

How much does a GPS machine control model cost?

A single grading surface starts at $400. A full site package with multiple surfaces, alignments, and utility layouts starts at $2,000. Large or multi-phase projects are quoted based on scope. All pricing is per-project with no retainers, no minimums, and no contracts required.

What files do you need to build a machine control model?

We need a civil plan set (PDF or CAD) and a survey CAD file (.dwg or .dgn) so the model is geographically correct and ties into your site control. If you only have a PDF plan set, we can still work with it - we just need survey data or a coordinate reference to ensure accuracy.

What format are the machine control files delivered in?

All files are exported in Trimble-compatible formats ready to load directly into Trimble field controllers running Earthworks or GCS900. Surfaces, alignments, and linework are organized by type and clearly named so your crew can load them without confusion.

How long does it take to get a GPS machine control model?

Standard turnaround is 2-3 business days from when we receive your plans and survey file. Rush delivery is available for an additional 50% fee, with 24-hour turnaround on most projects. We confirm the timeline before starting any work.

Do you build machine control models for systems other than Trimble?

No. We specialize exclusively in Trimble GPS machine control systems. That focus is what allows us to deliver models that work correctly the first time they hit the controller. We know Trimble Earthworks and GCS900 inside and out.

Can you build machine control models for subdivision grading?

Yes. Subdivision grading is one of our most common project types. We build finish grade surfaces, subgrade surfaces, over-excavation surfaces, road alignments, curb profiles, and utility layouts for residential and commercial subdivision work. Multi-phase projects are handled as a complete package.

What is included in a full site machine control package?

A full site package includes multiple grading surfaces (finish grade, subgrade, over-excavation), roadway alignments and corridor models, utility layout support, Trimble-ready file exports, and organized file packaging with clear naming conventions. Everything your crew needs to start grading without rework.

How do I outsource machine control model building instead of hiring someone full-time?

SkyTerra provides per-project machine control model building so you get the support you need without the cost of a full-time employee. You send us plans when you have a job, we build the models and deliver them in 2-3 days. No salary, no benefits, no overhead - just accurate Trimble-ready files when you need them.

What types of grading surfaces can you build for Trimble GPS?

We build finish grade surfaces, subgrade surfaces, over-excavation surfaces, pond and detention surfaces, pad grading surfaces, and any other surface type shown on your civil plans. Each surface is built to the grades, slopes, and elevations specified in your plan set.

Ready to Get Started?

Send us your plans and survey file. We will review the scope and send you a quote - no obligation.