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3D Printed Replacement Parts: Reprint What Nobody Stocks Anymore

Sep 1
4 min read

We reverse-engineer and reprint parts nobody stocks anymore — from a 3D scan, a photo, a sketch, or the worn original. Send what you have and you'll get a same-day quote; once you approve, most parts ship in 2–3 days from our shops in Columbia, Missouri and St. Petersburg, Florida, to anywhere in the US. We print in engineering plastics — polypropylene, ASA, nylon, carbon-fiber nylon, PETG, ABS and TPU — and there's no minimum order. One part is a normal order here.

Every plant, lab, and old building has one: the part that keeps a machine running, a bench organized, or a facade complete — made by a company that no longer exists, or an OEM that dropped the product line years ago. When it cracks, you can't buy another. You can reprint it.

We are family-owned, US-based, and focused on speed and quality. This page explains exactly what we can reproduce, what we need from you, and where the honest limits are.

Parts we reproduce

  • Discontinued OEM plastic parts — knobs, clips, brackets, housings, and covers the manufacturer no longer sells.

  • Parts for unsupported machines — guides, chutes, guards, and change parts for equipment the OEM walked away from. If it's tooling that wore out, see our jigs, fixtures & line tooling work.

  • Lab and clinical holders — vial racks, sample nests, instrument clips, and holders built to fit your exact bench and workflow.

  • Architectural and restoration elements — ornament and trim reproduced in paintable plastic for renovation work, matched to the original profile.

  • Enclosures, mounts, and brackets — junction boxes, camera mounts, and equipment covers, printed in materials that survive sun and weather.

  • The part that never existed — the case, adapter, or holder no one ever manufactured in the size you need.

Two recent requests, so you know this is real

In one recent month, a medical device integration team ordered thirty custom vial holders built to their equipment — an institutional repeat order, reprinted to the same spec every time. The same week, a restoration contractor brought us an ornamental cast-iron column capital from a historical renovation that needed to be reproduced. Two unrelated industries, one identical problem: an existing object nobody sells anymore.

How reverse-engineering works here

  1. Send what you have. The original part (even broken or worn), photos with something for scale, a sketch with measurements, or an old drawing — or ship us the part and we'll 3D scan it. CAD files welcome but never required — .STL, .STEP, .OBJ, or .3MF, zipped.

  2. We scan it or rebuild it digitally. We 3D scan the original or model the part from your photos and measurements, and where a dimension is fit-critical we confirm it with you before anything prints. Creating the CAD — by scan or by modeling — is a flat $500, stated up front in the quote.

  3. Same-day quote. Material, price, and lead time, the day you send it.

  4. Approve, print, ship. Most parts ship in 2–3 days after approval, anywhere in the US — or pick up in Columbia, MO or St. Petersburg, FL.

Picking a material that will survive

Tell us where the part lives and fails; we'll match the plastic to the job. See the full materials list.

  • Chemical wash-down, flexing, moisture → polypropylene (PP)

  • Sun and weather, outdoor fixtures → ASA

  • Wear, load, and impact → nylon or carbon-fiber nylon

  • General-purpose brackets and housings → PETG or ABS

  • Grip, seals, and flexible clips → TPU

The honest limits. We print engineering plastics on FDM machines, holding ±0.2 mm on typical parts — we don't print metal. Plenty of metal parts do their job perfectly well reprinted in carbon-fiber nylon, and decorative metalwork can be reproduced as a paintable replica. When printing is the wrong answer for your part, we'll tell you straight.

What it costs to find out

Nothing. Quotes are same-day and free — send the part or the photos and you'll know the price before you commit to anything. If we have to create the CAD model — by 3D scanning your original or building the file from photos — that's a flat $500, quoted up front. Printing is quoted per part.

Frequently asked questions

Can you 3D print a replacement for a part that's no longer made?

Yes. If the part is plastic — or can do its job as a plastic part — we reverse-engineer it from a photo, sketch, or the worn original and reprint it. No CAD file needed.

Do I need a CAD file or technical drawings?

No. The physical part, or photos with a scale reference, is enough — we can 3D scan the original or model it from your photos. If you do have a file or drawing, it speeds up the quote.

Do you offer 3D scanning?

Yes. We 3D scan your part and turn it into a print-ready CAD model for a flat $500 — the right path when the geometry is too complex to measure from photos.

Can you reproduce a metal part?

We print engineering plastics, not metal. Many metal brackets, guides, and housings work well reprinted in carbon-fiber nylon, and ornamental metalwork can be reproduced as a paintable replica. We'll tell you honestly which camp your part is in.

How accurate is the reproduction?

±0.2 mm on typical FDM parts. Where a dimension is fit-critical, we confirm it with you before printing.

How fast can I get the part?

Quotes go out the same day. Once approved, most parts ship in 2–3 days; if CAD rebuild adds time, the quote says so up front.

Is a single part worth your time?

Yes. There's no minimum order — one replacement part is a normal job here, and we keep your file on record so the next one is a same-day reorder.

Will you copy any part I send?

We reproduce parts to repair and maintain your own equipment and property. We don't clone currently manufactured products for resale.

What part is your line, lab, or building waiting on?

Send a photo and get a same-day quote — upload it here (zip CAD files: .STL, .STEP, .OBJ, .3MF) or call/text 630-485-9984. Prototyping something new instead? Start with rapid prototyping, and when the design is proven we carry it into low-volume production.

 
 
 

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For Questions:

Tel. 630-485-9984 Email: Joe.Stone@3Dinfinityprints.com

Text: 630.485.9984

Locations (we ship nationwide to all 50 states):

Florida (Tampa Bay): 160 16th St N, St. Petersburg, FL 33705 (by appointment only)

Missouri: 13 N 9th St, Columbia, MO 65201 (by appointment only)

Send us a message
 and we’ll get back to you shortly.

CAD files (.STL .STEP .OBJ .3MF): zip them first, then attach the .zip here.

© 2023 by 3DInfinityPrints. 

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