The 3D Printing Guys. // Tools

The working tools behind the free guides.

  • They run in your browser, on a phone or a laptop.
  • They work offline once the page has loaded.
  • Nothing is sent anywhere. Your answers stay on your device.
11free tools
7minutes, the longest run
£0to use, now and later

Job 1 of 5

Work out what to sell

Start with parts that already sell, then check your own idea against what is out there.

Explorer

Find your first sellable part

Four questions about your printer and what is lying around the house point you at a category. Then browse all 43 parts from the guide, filtered to what your printer can handle.

43 parts that already sell, each with a free file.

  • TimeAbout 2 minutes
  • You getA starting category and your filtered parts list, with a link to each file.
Open the parts explorer

Reference table

What is already selling, printed

37 real products made on 3D printers, sorted by the lane each one sits in. Search a word, pick a lane, tap a column to sort.

Check your idea against the market before you build a storefront.

  • TimeAbout 2 minutes to scan
  • You getThe angles that already work, with a link to 34 of the product pages.
Open the products reference

Launch tier

The working parts list

The 25 listings in our own shop that eBay showed to the most buyers. Every card carries the photo, weight, print time and the item specifics we set.

The list behind the free 43.

  • WhereInside 3D Printing University, Launch tier.
  • You get25 parts to print and list, starred and copied as a shortlist.
Launch members only

Job 2 of 5

Price it before you print it

Most people quoting print work are guessing. Find the leak first, then run the numbers.

Check

Where is your pricing leaking money?

15 questions on how you price work today. A plain reading of where the money is going out, and the answers that caused it.

Hands you straight to the free quote calculator at the end.

15questions
3minutes to a reading
4areas scored

You get a score per area, your weakest one named, and the steps that close it.

Open the pricing check

Job 3 of 5

Make it so it prints every time

The material, the geometry and the finish, in the order the job needs them.

Sheet

You know the material. Which brand?

Type the material or the job, or tap it from the list. One answer per material: the brand we run, or the community's pick where we have not.

11 materials, each with a price band, a dryer setting and what to avoid.

  • TimeLook it up as you need it
  • You getThe brand to buy, the ranked alternatives, and the setting to dry it at.
Open the brand sheet

Check

Will this part print 1,000 times?

20 questions about the part you are about to model, quote or send to the plate. The difference between a hobby print and a farm part is geometry, not slicer settings.

A pass, fix or check verdict on every rule in the cheat sheet.

  • TimeAbout 4 minutes
  • You getThe fix for anything that fails, and the section of the guide to read.
Check my part

Checklist

From just-printed to looks-moulded

Eleven steps, with the kit each step needs, in the order you need it. Tick each step as you do it and the kit as you buy it.

22 kit items, a top pick and a budget alternative for each.

  • TimeRuns alongside the job, over a day or two
  • You getA saved checklist and a still-to-buy kit list.
Open the finishing kit

Job 4 of 5

Sell it to the right buyer

Who you sell to matters more than what you make. Prints and files are different markets.

Explorer

10 industries that paid us

Tick what you own and it highlights the industries within your reach. Read the cards, shortlist one industry, go at it properly.

The same printer, the same filament, the same skill. Different buyer, different money.

  • TimeAbout 3 minutes
  • You getA shortlist of industries within reach, with where to look for each buyer.
Open the industries explorer

Card deck

What people pay for, file by file

The paid charts from four file platforms, row by row: what sold, where it ranked and what it cost. Then how to spot and make a file people pay for.

Real sales, not download counts.

  • TimeBrowse at your own pace
  • You getA clear read of which files sell, and a method for making one.
Open the file-selling deck

Job 5 of 5

Run the business, not just the printer

Two diagnostics for the shop itself, and the tools we run it on.

Check

Where is your year-one gap?

20 questions, 5 areas, one score each. Bad prints rarely kill a year-one business; a wet spool nobody tested or a client gone quiet does.

You fail at your weakest area, not your average.

  • TimeAbout 4 minutes
  • You getA score out of 5 per area, your lowest named, and the next steps for it.
Start the survival check

Audit

What is holding your shop back?

29 questions on where your week goes, what your prices do, how many enquiries land and how many you win. It scores the five things that stall a working print business.

Then it tells you which one is yours.

  • TimeAbout 7 minutes
  • You getYour bottleneck named, and the route to fixing it. Run it again each quarter.
Start the audit

Vault

Every AI tool we run

50 cards across five layers: brain, visual and audio, 3D, automation and scrape, farm. Tick your stack, and copy the prompts plus a setup prompt for every tool.

Most of the tools are free, free-tier or free-trial.

  • Time2 minutes to your first tool. Keep it open after that.
  • You getYour ticked stack, and copy-ready prompts for each tool in it.
Open the toolkit

Free stays free

Everything on this page is free, and stays free.

The guides these tools come from, the community and the paid tiers all live in 3D Printing University.

Join 3D Printing University

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