Concept to Part
We turn a sketch, photo, drawing or existing part into a printable design. Then we prototype it, refine it and move it into production. One prototype or production quantities, made in the USA.
Made in the USAA person reviews your request and follows up by email.Design and print priced as separate lines
You tell us what the part has to do and show us what you have. A sketch, a photo, a drawing, a broken part or a CAD file that needs work.
You: Send the request with your starting material and the few sizes that have to be right.
You get: A reply from a person with questions, a scope and a price for the design work.
We build the part in CAD for FDM printing. Wall thickness, fits, holes and print orientation are set so the part prints well and does its job.
You: Answer our questions and approve the design quote.
You get: A model you can see before anything prints, with the print price beside it.
We print one, or a few, so you can hold the part, test the fit and try it in place.
You: Approve the prototype quote. The print is priced as its own line, separate from the design work.
You get: The printed prototype, made in the USA.
Most parts need a change after the first print. A tighter fit, a thicker wall, a moved hole. We revise the model and print again if you want.
You: Tell us what to change.
You get: A revised model and, if you choose, a second prototype.
The approved file becomes a part you can order again. One more, or a production quantity, at today's price.
You: Order from your quote link or your order page. Reorder any time.
You get: Parts shipped in the USA, and a saved part you never have to re-explain.
You do not need CAD. Send what you have and a person tells you what else, if anything, is needed.
A sketch with sizes on it is a good start. A sketch with no sizes needs a follow-up before we can price the design.
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A photo shows us the shape. It does not give us sizes. Add a ruler or a caliper in the shot, or list the key sizes, and we can start.
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A drawing with dimensions is usually enough to price the design work and often the print too.
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A broken or worn part can be measured and rebuilt. Both halves of a broken part are better than one. If you cannot mail it, photos with a caliper in the shot are the next best thing.
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A STEP file we can change is the fastest path. Tell us what to change and we quote the edit and the print.
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A clear description can be enough to start a conversation. We will ask questions before we quote the design work.
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Already have a ready-to-print file? You do not need design work. Get an instant price.
You have the idea and a sketch. You need a part you can hold, test and show.
You are developing a product and need design help, a prototype, then a production quantity from one supplier.
See parts for hardware startupsYou know what you want. You do not have the hours. We model it for FDM and send the file back.
The maker stopped selling it. Send the broken part or caliper photos and we rebuild it.
See replacement part examplesA small plastic part is holding up the job. We tell you fast whether it can be reproduced.
See the parts we make for trades| Scope | What is included | You receive | Price |
|---|---|---|---|
| File repair | Your file exists but will not print. Holes in the mesh, flipped faces, parts that are not one solid. We fix the file and check it prints.
| A repaired STL that passes our print checks. | Quoted by a person You see the number before any work starts. |
| Modification | You have CAD and need a change. A new hole, a thicker wall, a longer tab, a different mount.
| An updated model and a printable file. | Quoted by a person You see the number before any work starts. |
| Concept to CAD | You have a sketch, a photo or a written idea and no file. We turn it into a printable design.
| A CAD model and a printable file you approve before printing. | Quoted by a person You see the number before any work starts. |
| Mechanical design | The part has to carry load, move, snap, seal or hold something else. We design it to work, not just to look right.
| A working design with the reasons behind it, ready to prototype. | Quoted by a person You see the number before any work starts. |
| Reverse engineering | You have the part, or what is left of it. We measure it and rebuild the shape so it fits where the old one did.
| A model of the part and a printable file. | Quoted by a person You see the number before any work starts. |
| Design review | You did the design. Before you print fifty, we read it for FDM problems and tell you what to change.
| A written review with the changes we would make. | Quoted by a person You see the number before any work starts. |
Design work and printing are always separate lines. The prototype print uses the same per-part pricing as any other order. You approve each step before the next one starts. See print pricing.
We design working plastic parts for FDM. Brackets, mounts, enclosures, adapters, replacement parts, jigs, fixtures, housings and guards. If you can describe it or show it, we can usually design it for a printer to build well.
Your files are private. See what happens to your files. We sign a mutual NDA on request. See our NDA template.
We design and print parts you have the right to make. If a part is someone else's protected design, tell us before we start.
We have not finished our written rules on who owns a custom design. Ask us before you start if that matters for your part.
The prototype is one line on the quote, priced like any print. Most orders ship in 3 to 5 business days.
After you approve it, the file is saved to your project. You can reorder it from your order page at today's price. Production quantities are quoted, or ordered online for PLA and PETG. Other materials go through a person. See low-volume production and production 3D printing.
Last reviewed 5 September 2026 by 3D Printer on Demand.
A sketch, a photo, a drawing or the broken part. A person reviews your request and follows up by email.