Getting Started
How to Get Something 3D Printed Without a Printer
You don't need to own a 3D printer — or know anything about 3D printing — to get a custom part in your hands. An online 3D printing service lets you upload a file (or just describe an idea), and it gets printed and shipped to your door. Here's exactly how it works, start to finish.
The easiest option: an online print service
Buying your own printer only makes sense if you plan to print constantly. For a one-off, a gift, a replacement part, or a prototype, using a service is faster and cheaper — someone else owns the machine, the materials, and the experience to get it right the first time. You just need a file.
What you need to get started
You're in one of three situations:
1. You already have a 3D file
If you have an STL, STEP, 3MF, OBJ, or CAD file, you're ready — head to the quote calculator and upload it. Not sure which format? Our upload tool accepts all the common ones.
2. You want an existing design
There are huge free libraries of ready-to-print models. Find something you like, download the file, and upload it to us:
- Printables — a large, high-quality free library.
- MakerWorld — thousands of tested models.
- Thingiverse — the original, enormous catalog.
Replacement knobs, organizers, brackets, toys, cosplay props, tabletop miniatures — if you can imagine it, someone has probably already modeled it.
3. You have an idea but no file
No design yet? That's fine. Send a photo, sketch, rough measurement, or description and we'll design a printable 3D model for you before printing it. This is ideal for custom parts, discontinued components you need to recreate, or a product concept you want to prototype. Start with a message on our 3D design page.
Step by step: from file to doorstep
- Upload your file on the quote page.
- Choose a material and color — PLA for looks, PETG for durability, and more. See the material guide if you're unsure.
- See your instant price — the calculator reads your model's size and weight automatically. Learn what drives it in our cost guide.
- Pick pickup or shipping — free local pickup in the High Desert, or shipping nationwide.
- Check out and we print it — most jobs are done in 4 hours to 6 business days.
What people usually ask first
How much will it cost?
Small parts are usually just a few dollars. The pricing guide covers ranges and examples, but the fastest answer is a free instant quote.
How long does it take?
Printing typically takes 4 hours to 6 business days depending on size and our queue, then add shipping time. Need it fast? Ask about rush service when you submit your quote.
Is my design kept private?
Yes. Your files are stored encrypted and deleted 30 days after your job ships unless you ask us to keep them for re-orders, and we're NDA-ready by default for confidential work.
Frequently asked questions
I don't own a 3D printer — can someone print my file for me?
Yes. Upload your STL, STEP, or 3MF file to an online 3D printing service like Assista CNC, choose a material and color, and we print it and ship it to you. No printer, software, or account needed.
What if I don't have a 3D file yet?
You have two options. Download a ready-made model from a free library like Printables, MakerWorld, or Thingiverse, or send us a photo, sketch, or description and we'll design a printable model for you before we print it.
How long does it take to get a 3D print shipped to me?
Most jobs are printed within 4 hours to 6 business days depending on size and queue, then shipped. Rush service is available if you need it sooner — just ask when you submit your quote.
Is it safe to send my design file to a print service?
At Assista CNC, files are stored encrypted and deleted 30 days after your job ships unless you ask us to keep them for re-orders, and we're NDA-ready by default for confidential projects.
Get your instant 3D printing quote
Upload your STL or STEP file and see your exact price in seconds. Free quote, no account, ship anywhere in the US.
