r/3DPrintFarms

Hi everyone — I’m looking for feedback from people who actually run print farms or sell 3D printed parts.

I’m the maker behind Keymera, a tiny 3D-printable keychain camera project. It’s a small DIY camera built around standard off-the-shelf electronics, with a printed shell, microSD storage, one-button capture, and a Wi-Fi photo gallery.

The project was recently funded on MakerWorld, and I’m now working on the commercial/seller side of it. I’m considering a commercial license for small print farms / Etsy sellers so they can legally sell printed Keymera shells or printed parts in their own shops.

Important clarification: this would not be a full electronics kit. Sellers would mainly offer the printed parts/shells. The customer would source the electronics separately using the BOM and build guide.

One of the big reasons I’m thinking in this direction is the regulatory/support side. Shipping full kits with electronics, batteries, or finished assembled cameras seems like a very different business: CE/product compliance, battery shipping rules, EU battery obligations, WEEE/e-waste registration, support, returns, liability, etc. Printed parts seem much cleaner — but I’d love to hear how people here think about that boundary.

For people here who sell printed parts, I’d love your honest take:

• Would “printed parts only — electronics not included” create too much customer-support risk?
• Would you consider listing something like this if the package included print settings, photos/renders, suggested listing copy, and clear customer disclaimers?
• Would the electronics aspect make it more interesting, or would it scare buyers away?
• What would you need from the designer/licensor to make this practical for your shop?
• Would you ever consider selling a full kit or finished camera, or would that immediately become too messy because of certification, batteries, and liability?

Thanks for any feedback. I’m trying to understand what would make a licensed printable product actually useful for small print farms.

Hi everyone, I co-run a new print farm where we print our own products we design. We have been watching lots of Youtube and trying to grow and learn.

We have our own website, we have an Etsy page. We are trying to extend our reach and grow a bit faster. We tend to get one or two orders a day.

What did you guys do to grow faster? We currently have 5 printers and we want to keep them busy!!

Hey r/3Dprinting,

I've been running a print farm for the past few years, and I kept hitting the same wall: spreadsheets don't scale.

Here's what broke for us:

**The chaos that compounds past 10 printers:**
- Print requests came in via email. We'd lose track of who ordered what and when.
- Filament stock was a Google Sheet or Excel file that nobody updated until we ran out mid-print.
- Scheduling was on a whiteboard. Double-booked machines happened weekly.
- Quality control? Screenshots in a Slack channel. Zero traceability.
- OEE? We didn't even measure it because we couldn't.

So I built **Pryysm**—an Additive Manufacturing Execution System (MES) designed specifically for 3D print farms.

**What it does:**
- Structured print request intake with material picker, tech selection, department routing
- Real-time fleet monitoring and OEE calculation
- Production scheduling: day/week/month views, job splitting, capacity-aware allocation
- Material inventory: track filaments/resins/powders, reorder alerts, lot traceability
- QC workflows: pass/fail inspections, NCR records with root cause tracking
- AI copilot: ask it plain English questions about your operation

Supports FDM, SLA, and SLS. Multi-tenant (proper PostgreSQL RLS, not just separate logins).

**We're opening the waitlist today.** Free tier is coming soon — no credit card required.

I'd genuinely love brutal feedback from this community. What's missing? What would make this actually useful for your operation? What have I got wrong?

Link in bio / comments.

I run a small print farm with about ten printers running daily. Right now, two of my printers are not working and need replacement parts. I do not really have a set budget for OEM parts, so I am considering more affordable generic options instead.

I have already seen some options on Amazon and Chinese marketplaces like Alibaba, but I am nervous about the quality and reliability. Has anyone here used budget replacement parts for farm printers?

I would appreciate any advice or recommendations on what parts are safe to buy generic and which ones are better to keep OEM.

Sharing the audit I run on the small shop I help operate. Same 30 minutes every week, four inputs, three numbers out. The point is not the audit itself, the point is that anything you ship out of a small shop without this audit is being priced on what the calculator hopes is true rather than what last week proved.

What you need:

- A kitchen scale that reads in grams

- 10 invoices from the last 7 to 30 days (jobs actually shipped, not quoted)

- A clock or the stopwatch on your phone

- A notepad or single spreadsheet tab

The audit:

1. Pull the 10 most recent shipped jobs. Pull revenue for each. Just the revenue column.

2. For each job, write down filament shipped in grams. If you have any finished parts on hand, weigh one. If you only have the gcode estimate, use it but flag it (the actual shipped weight after supports and brim removal is usually 4-9% lighter than gcode estimate for most part geometries).

3. For each job, write down total print hours from the printer's own log. Not the slicer's estimate, the printer's log. Most shops are off by 6-14% between slicer estimate and actual log because of pauses, retries, and the rare overnight where the machine sat in heated-bed-only state for two hours waiting on the operator.

4. For each job, write down the minutes you personally spent before the print started (slicing, repairing, customer back-and-forth on tolerances, packaging design). Estimate is fine but estimate honest. If a customer made you redo the slice twice because of orientation discussion, that's 90 minutes not 30.

The three numbers out:

A. Revenue across 10 jobs (just sum it).

B. Filament + electricity + machine slot + prep cost across 10 jobs. Use your own kWh rate and your own machine-hour amortization. Most shops I see use $0.12-$0.30 / kWh and $0.50-$2.50 / machine-hour.

C. A minus B. That is the dollar number your pricing math thinks you cleared on those 10 jobs.

The audit's value is not C. C is the comfortable number. The audit's value is what is missing from C, because the next two lines (failed-print expected cost and post-processing labor) are not in B and they are where small shops lose 30-50% of the margin they thought they earned.

If you have never done this audit, the first time you run it you will find one of three things:

i) Your prep time is much higher than you estimated when quoting. (Common for low-volume jobs with engineering back-and-forth.)

ii) Your gcode-estimated filament is 4-9% lower than what you actually ship. (Common for parts with significant support volume.)

iii) Your machine-hour rate has not been updated since you bought the machine. (Almost universal.)

None of those three are catastrophic. They are just facts you'd rather know on Monday than discover at the bottom of a 50-unit order.

I run this audit Monday morning, 7am, before any quotes go out for the week. It takes 25-35 minutes. The output goes on a single index card pinned to the wall above the slicing PC: cost-per-finished-part, average prep time, current failure rate. If the index card is more than a week old it gets thrown out and the audit runs again.

The point is not to formalize your shop. The point is to know what you are pricing against. The week I started doing it I caught a recurring underquote on a customer who only ordered every three weeks. Net effect was about $180/month, which on a small shop is real money.

Curious what other people are tracking weekly. The Friday Print Farm Fridays thread is the place I see most of this discussed but a lot of the conversation stays on machine choice and never gets to the unit-economics side.

Hi all!
Do any of you 3d print enthousiast or professionals are aware of any type of software that manages equipment (maintenance logs, print logs, …), materials (track filament or resin orders, usage, notifications when almost out of stock, …) and managing /tracking of jobs and invoices for customers?

I know, it is quite a big ask, but I don’t like having to do this in 2-3-4 different software packages.

Hello fellow print farmers! Today is Printer Farm Friday!

Feel free to ask any questions, share info or comments here. We're trying to build a community in this sub where you can ask questions about topics like:

• How to improve your workflow
• How to slice for printer farm operation
• What tools are available for farm operators
• Printer maintenance
• Filament management
• etc.

Our hope is to get people to start talking about the importance of printer management in a printer farm scenario.

What would you like to share or what questions do you have?