CAD / Prototype
Project 1
Placeholder — swap in your first featured build with photos and a short writeup.
CAD · 3D Printing · Product Development
From sketch to part,
refined into product.
I design, model, and print physical products — plus the apps, sites, and tools that support them. If you have an idea and need it built, this is where it happens.
Services
Hire me for one piece of the process or the whole thing, from idea to physical product.
CAD Design
Parametric modeling for functional parts, mechanisms, and product prototypes — built to print or manufacture, not just render.
3D Printing
FDM printing from a finished model to a finished part: material selection, tolerances, post-processing, and iteration.
App / Site / Tool Building
Software to go with the physical side — product sites, internal tools, or a small app that a product idea actually needs.
Product Development
End-to-end: concept, CAD, prototype, revisions, and a small-batch or one-off finished product.
Products
Small products designed and printed in-house. Available as one-offs, custom orders, or starting points for your own idea.
Dog Bag Holder
Clip-on poop bag dispenser for a leash or harness.
Pet Statue
Custom sculpted likeness of a pet — statue or vase form.
Pet Name Tag
Custom-engraved tag, sized and shaped to the pet.
Eyelash Curler
Ergonomic redesign of a everyday tool.
Light Pendant
Printed pendant light shade, designed for diffusion and print time.
Work
Featured builds, prototypes, and assemblies. More on@refinery.st.
Product Design
Project 2
Placeholder — swap in your second featured build.
3D Print
Project 3
Placeholder — swap in your third featured build.
About
Refinery.st is the CAD, 3D printing, and product design practice of Elvis Sierra — a software and data engineer who also designs and builds physical things. The name is the idea: take a rough concept and refine it, through CAD and iteration, into a real part or product.
Software work and case studies live atelvissierra.github.io. This site is for the CAD, print, and product side of the work.
Start a project
Tell me what you need — a CAD model, a printed part, a full product, or something software-side. I'll get back to you.
Prefer social? DM @refinery.st or email elvissierra3@gmail.com.