Prototype Fabrication in Amarillo, TX
Single-unit and small-batch steel prototypes — turning concepts and drawings into physical metal parts you can test, measure, and refine.
Homerun Fabrication offers custom metal prototyping in Amarillo, TX and throughout the Texas Panhandle. Prototype fabrication is the process of building a single working version of a part, assembly, or piece of equipment so it can be tested before committing to a production run. For steel and metal prototypes, that means a one-off welded assembly built to a drawing or sketch, then handed back for fit, function, and load testing. Most prototypes turn around in 1 to 3 weeks.
Our in-house welding shop and fabrication capabilities let us move fast from drawing to physical part — whether you're an inventor, an engineer at a regional ag supplier, or an operator testing a custom solution before scaling it.
From Drawing to Physical Part
The gap between a CAD drawing and a working steel part is where most prototype projects get stuck. Tolerances that look fine on screen don't account for weld shrinkage. Joint geometries that look elegant on paper turn out to block welder access. Material specs from a catalog don't always match what's actually in stock.
That's where an in-house fabrication shop earns its keep. We build the first part, hand it back with notes on what we'd change for production, and iterate from there.
Who do you build prototypes for?
Inventors developing a patented product. Engineers at regional ag and oilfield suppliers refining a new fixture or tool. Ranchers and operators with a custom solution they want built before they commit to a full production order. Anyone who needs to hold a physical version of an idea in their hands and put real load on it before going to volume.
Prototype Capabilities
What we can build — and what we can iterate on.
Welded Assemblies
Multi-piece weldments built from plate, tube, channel, or angle to a drawing or sketch.
Ag Equipment Parts
Custom brackets, frames, hitches, and tooling for agricultural and ranch equipment.
Mechanical Assemblies
One-off fixtures, jigs, and mechanical assemblies for testing concepts.
Patent Prototypes
Working physical prototypes for inventors and product developers under NDA.
Iteration Builds
Second and third prototype rounds incorporating real-world test feedback.
Pre-Production Samples
Short pre-production runs before full manufacturing — we can scale into batch.
Prototype Process
From the first call to a part in your hand.
1. Scope & NDA
Initial scope, drawings or sketches, and a signed NDA if needed.
2. Quote & Material
Material spec, fabrication plan, and a written quote with timeline.
3. Build
Cut, weld, and assemble the prototype on the shop floor.
4. Hand Off & Iterate
Hand off the part with shop-floor feedback, then iterate or scale to production.
What does prototype fabrication cost?
Single-unit prototype costs depend on the complexity, the material, and the time required to fixture the part for welding. Simple weldments can run a few hundred dollars; more complex assemblies with sourced specialty stock and detailed welding routinely fall between \$1,500 and \$5,000 per prototype. We give you a written quote with material, labor, and lead time before any cuts are made.
Have an Idea You Need Built?
Send us your drawings or scope — NDAs welcome.
Prototyping FAQs
How fast can you turn around a prototype?
Will you sign an NDA on a prototype project?
Can you help refine the design or do you only build what I bring?
Last Updated: April 2026
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Build the First One. Then Build the Rest.
From drawing to physical part to production run — one shop, start to finish.