10 Things I've learned running a print farm
What this covers
Want to start a 3D printing business? https://printfarmacademy.com Check out my store! https://shopnationstore.com
1 Year update after switching to Bambulab: https://youtu.be/moFvIIlDYx4
Which printer to buy? - https://youtu.be/vb0LOpCo454 My (new) Industrial Print Farm - https://youtu.be/3EEn1EJfEu8 My First Print Farm - https://youtu.be/hL17PPiB6ds
The 3D Printer(s) I recommend: Top Tier Category 👑 Bambulab H2S 3D Printer (Bigger Volume) - https://tidd.ly/3IaLFzZ Bambulab H2D 3D Printer (Multi Nozzle) - https://tidd.ly/488yDNQ Bambulab X1C (Compact) - https://tidd.ly/486RSra
Workhorses 🐴 Bambulab P1S (Best) - https://tidd.ly/45W2I1Q Bambulab P1P (Good) - https://tidd.ly/4mZe4rX Prusa CORE One - https://bit.ly/4ge2JAY
Budget/Entry Level 💸 Bambulab A1 Mini - https://tidd.ly/4nno1PB Bambulab A1 (Bigger) - https://tidd.ly/4pcYjzf
Links to Products Featured (some are affiliate links which help sponsor the content!): ------------------------------------------------------------------------------------------------------------------------------------- UPS (Uninterruptible Power Supply) - https://amzn.to/3t3ki2V Barrina 4' LED Fixtures - https://amzn.to/3nKobax Barrina 2' LED Fixtures - https://amzn.to/3NMAe1Y Print Room Air Purifier - https://amzn.to/3t5uW9p Air Knight Monitor - https://amzn.to/48mtek3 SD Card Duplicator - https://amzn.to/3t3YT9Q 16 gb SD Cards (10-pack) - https://amzn.to/3LVuwcn Shipping Tape Dispenser - https://amzn.to/456j7Nk Kasa Smart Outlet (4-pack) - https://amzn.to/48oY4bK
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00:00 Introduction 00:25 1. Not Passive 00:53 2. Energy 02:02 3. Air Quality 03:27 4. Prepare to Grow 04:14 5. Standardize 06:59 6. Maintenance 08:30 7. Production Planning 09:20 8. Print Job Management 10:34 9. Packaging & Fulfillment 11:28 10. Future Technology
This video is sponsored by Factor
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Operating a 3D printing farm at scale requires planning across ten critical operational dimensions—from recognizing that printing is not passive, to managing energy and air quality, standardizing equipment and materials, maintaining machinery proactively, planning production capacity, managing print jobs efficiently, handling packaging and fulfillment, and choosing printer technology strategically for longevity.
- 3D printing requires constant labor for loading, monitoring, unloading, post-processing, and support cleanup—it is not passive
- A multi-printer farm demands infrastructure planning (power circuits, cooling, air filtration) that single printers do not
- Operational scaling requires standardization of printers, spare parts, and filament to reduce complexity and inventory costs
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A 3D print farm with 40 printers in a small room consumes approximately 4,000 watts of power during operation (each printer producing about 100 watts of heat equivalent), making the room normally 10–15 degrees warmer than surrounding areas, requiring dedicated cooling infrastructure like mini-split AC units.
“each printer individually does not gobble up a ton of power or create a lot of heat but putting a lot of them say 40 in a small room is a different story all it takes is a print Farm to grow to around four or five printers before you need to start thinking about power”
One 3D printer printing benign plastics like PETG does not usually create significant air quality concerns, but a farm of 40 printers printing the same materials can generate volatile organic compounds (VOCs) and particulates that warrant monitoring and air purification.
“one printer is usually not a huge concern as long as you aren't printing nasty materials like ABS but 40 printers even printing benign Plastics like petg can generate vocs and particulates”
Standardization of printers, spare parts, and filament is critical at scale; using a single printer model (Mark III S Plus in the speaker's case) simplifies file creation, spare parts inventory, and material management, whereas introducing different makes and models adds complexity and requires maintaining separate parts inventories.
“standardization is very important again when you just have one or two printers it doesn't seem like a big deal but when you need to create print files for a fleet of printers you don't have to create those files in multiple different software platforms or create different file types the same goes for spare parts having Universal parts means you don't need to keep such a high inventory and it's easy to know when to reorder”
A print farm requires expansion beyond a single electrical circuit at around 4–5 printers; the speaker installed 11 20-amp circuits in the print room to handle power draw and heat conversion as the farm scales.
“at that point you need to expand Beyond one circuit which if you're doing this in a bedroom may not even be available I've got 11 20 amp circuits in this print room which I installed before moving in here”
A mini-split AC unit can be used to cool a print farm room by turning it on during work hours and off when not in use, ensuring human comfort without unnecessary energy waste.
“The heat in the room is actually not a bad thing for the printers themselves it just makes it uncomfortable to work in as a human being this mini split we've got installed in this room is great because I can turn it on while I'm working and then turn it back off when I leave”
3D printing is a rapidly growing, low-volume, high-mix manufacturing method that is attracting small businesses to enter the market due to its low price entry point—a few hundred dollars can start producing products for sale, making it more accessible than injection molding or CNC machining.
“3D printing is a lot of fun and it's a rapidly growing low volume High mix Manufacturing method I'm seeing more and more small businesses pop up that leverage 3D printing to make products”
Proactive maintenance (keeping motion systems lubricated, following manufacturer guidance) helps reduce breakdowns, and operators should maintain a proper maintenance record tracking lubrication, nozzle changes, fixes, and recurring errors to identify long-term patterns.
“you should always be proactive with maintaining your Fleet this is kind of the rule with everything including your car your printer manufacturer probably has some guidance for this but typically at a minimum you should keep your motion system properly lubricated”
Understanding a print farm's production capacity (accounting for ~15% normal downtime) is critical for determining how quickly it can meet demand; not knowing this can leave operators unable to meet customer deadlines and scrambling to expand capacity.
“knowing how much output your farm can do take taking into account some kind of normal downtime Factor say 15 percent is really important for understanding how quickly you can meet demand if you start selling a product that's popular how do you know if you need to expand your printer Fleet not knowing this can sneak up on you and put you in a bind with customers expecting products by a certain deadline”
There is nothing passive about 3D printing at scale; while the printer works autonomously, loading filament, monitoring prints, unloading parts, post-processing, support cleanup, and adding hardware are labor-intensive when done across many machines, transforming perceived passive income into significant time burden.
“part of the Allure of 3D printing is the fact that this little robot works so you don't have to but it turns out loading filament monitoring prints and unloading parts from the printers is quite a chore when done at scale also don't forget about post-processing supports cleanup and sometimes adding Hardware all of these things take time and as we all know time is money”
Raw material inventory (filament) requires min-max level planning accounting for lead times and seasonal business fluctuations; these levels change as the business grows and must be adjusted accordingly.
“also along that same line when you buy filament and how much what's the lead time is there seasonality to your business this is a textbook manufacturing problem of min max levels for your raw material inventory where you set your minimum and maximum levels is entirely dependent on all of those factors here's the kicker though once you figure it out it's probably going to change as your business grows so just make sure to adjust accordingly”
Some printer failures can be addressed with a proper maintenance schedule (lubrication, cleaning, periodic calibrations), but others are random electronics failures that cannot be prevented; the speaker has become expert at replacing Prusa hot-end thermistors.
“some of these issues can be addressed with a proper maintenance schedule like lubrication cleaning and periodic calibrations some things however are random Electronics failures let's just say I'm extremely good at changing out prusa hot end thermistors”
Prusa is a proven platform used by some of the largest print farms in the world, including 600+ machines at Prusa headquarters, making it a reliable choice for fleet standardization.
“if you're building out a 3D print Farm your choice of printer manufacturer should be very intentional I jokingly refer to my print Farm as a room full of Corollas but the prusa brand is a proven platform used by some of the largest print farms in the world including these 600 plus machines running at perusa headquarters”
Filament quality has a significant impact on the quality and reliability of a 3D printer fleet; the speaker recommends against bargain-hunting for filament and instead buys higher-quality three-kilogram spools in bulk from Push Plastic (US-manufactured), which offers better value and reduces changeover labor compared to one-kilogram spools.
“filament standardization is also critical for a couple of reasons turns out filament can have a pretty big impact on both the quality and reliability of your Fleet finding filament that all but eliminates these issues is important for maximum uptime”
At any given time, 5–10 percent of a well-maintained Prusa printer fleet is out of commission requiring repair; this appears to be a physics-bound constraint even with proactive maintenance.
“I run almost exclusively prusa printers in my print Farm because well in my opinion they're the best Workhorse printer out there simple design long reliable track record and easy part access means that fixing them is pretty straightforward but even with this room full of Toyotas I found that at any given time I have around five to ten percent of my fleet out of commission and needing repair I think it's bound by physics or something because it's always that way”
Fulfillment needs scale at a faster pace than printer capacity growth; a print farm operator should anticipate and plan for fulfillment infrastructure expansion as early as printer scaling, even though it is less visible and 'sexy' than adding new printer banks.
“if you see your print Farm scaling you should anticipate the Fulfillment needs to scale at an even faster Pace I know it's way less sexy than adding a new Bank of cool 3D printers but trust me you cannot ignore it”
A print farm represents a significant capital investment (the speaker estimates ~$60,000 in his farm) and can quickly become outdated given the current rate of 3D printer innovation, making strategic printer manufacturer selection and upgrade planning essential.
“a print Farm represents a significant investment I mean I've probably got just under sixty thousand dollars sitting in my print Farm and at the current rate of innovation it can quickly become outdated which is kind of scary”
Despite air quality measurements showing acceptable VOC and particulate levels, the speaker chose to install a large air purifier with a CADR (Clean Air Delivery Rate) of 665 cubic meters per hour, which can turn over the room air in about 12 minutes, running it on a smart outlet that activates before work and deactivates when the building is empty.
“because we've got employees now we've got several people coming in and out of the building I thought I'd rather be safe than sorry so I've elected to put a large air purifier in the print room to run just before we come in in the morning and continuously run throughout the day I've got it hooked up to a smart outlet that turns it off once we leave the building”
Packaging and fulfillment is one of the biggest labor burdens of a 3D printing business; when the business was small, the speaker packaged orders at night after children slept, but as volume grew, this became unsustainable and necessitated a dedicated 40-foot fulfillment area in a commercial space.
“packaging and fulfillment process is easily one of the biggest labor burdens of my entire operation it's something I didn't totally anticipate early on I used to package up orders at night after the kids went to sleep it was something I could do myself without a big setup as my business grew I was not only obviously packaging up more orders but needed to keep more inventory and shipping supplies and shipping supplies take up a ton of room”
An SD card duplicator (referenced via Derek at Stubby Nozzle Company) can copy a master SD card's contents onto 10 SD cards with a single button press; these devices are expensive but become cost-justified at around 20 printers in the fleet.
“my friend Derek at stubby nozzle company turned me on to this SD card duplicator you insert a master SD card with all of your print files and with the touch of a button it duplicates the contents of that MasterCard onto 10 SD cards now for some reason these things are not cheap still can't figure out why so if you have a small farm I'd say it's probably not worth it but as soon as you have say 20-ish printers then it is well worth the money”
New 3D printing brands appear frequently with enticing features and value propositions; the speaker is testing Bamboo Lab printers to evaluate whether their high print speeds translate into greater output over long periods in a farm setting.
“seems like every week There's a new 3D printing brand popping up with very cool features and an enticing value proposition I'm currently testing out the viability of bamboo lab printers for life in a print Farm they've already proven themselves as a killer hobby machine”
The speaker measured air quality in his print farm using a monitor tracking small particulates and VOCs, finding that the print room baseline was not massively different from the main shop, and even with printers actively printing, VOC counts remained well within safe and acceptable range for everyday use.
“I was curious to know exactly how much so I bought this little air monitor which measures a bunch of things but small particulates and vocs are really what I'm looking for here you can see the Baseline reading in the main area of my shop this is after letting the area normalize and nothing really going on around it then I place it inside the print room and not a massive difference I went so far as to putting it right next to a couple printers who were actively Printing and if anything the VOC count Rose slightly but it's still well within the safe and acceptable range of Everyday Use”
For a limited number of product SKUs with proven print files, copying and pasting files to individual SD cards is manageable; however, at 40 printers, this process becomes a significant operational burden without automation.
“since I'm only printing a relatively limited number of product skus managing the print files themselves is pretty easy Once a design is finalized and the print file is proven out I just copy and paste it to my fleet but individually copying and pasting on 40 SD cards is a giant pain in the ass”
During warm-up, 3D printers emit even more heat than during normal operation, compounding the thermal load in a multi-printer environment.
“but since most of that power is eventually turned into heat that creates another issue when they're doing their thing each one gives off about as much heat as a 100 watt incandescent light bulb which may not sound like a lot but 4 000 watts of light bulbs is very toasty but then factor in during warm-up they give off even more heat”
Strategic planning for a print farm requires making educated decisions about printer manufacturer selection based on current knowledge, as the future cannot be predicted.
“look no one can predict what the future holds so we have to make educated decisions based on what we know now”
Bamboo Lab printers have proven themselves as 'killer hobby machines,' establishing a track record as a consumer-grade printer, but their suitability for long-term farm operation (after thousands of print hours) remains to be determined.
“they've already proven themselves as a killer hobby machine I mean two right there but how does it perform after a couple thousand Print hours”
Networked printer management software that centralizes control of multiple printers from a repository is available (mentioned in passing), but the speaker is not a fan of third-party hacks for this purpose, though acknowledges it might be easier if implemented from the beginning.
“I'd be remiss if I didn't mention that you can Network your printers together and use software to control all of them from a central repository I'm not a big fan of third-party hacks like this but that's just my preference maybe if you started with a system like that from the get-go it'd be easier to scale as you grew”
Examples of small 3D printing businesses include Derek's Stubby Nozzle Company (which prints custom handheld blower ends for car detailing), Print Error (which offers sculptural planners and vase holders), and the speaker's own operation (producing woodworking tool improvements).
“I use mine to produce woodworking tool improvements but take my buddy Derek at stubby nozzle company he 3D prints custom handheld blower ends for car detailing and washing supporting a high variety of makes and models or take print error they offer really cool sculpture looking planners and vase holders the applications are all over”
The speaker has experienced multiple instances of cutting filament reorders too close and getting caught without inventory, illustrating the real operational risk of underestimating lead times or demand.
“there have been several times where I cut it a little too close with filament reorders and got caught with my pants down metaphorically speaking”
Most 3D printers can be wirelessly controlled and monitored, which is convenient for management, but the speaker's farm uses printers that run from isolated local SD cards, requiring manual file distribution across the fleet.
“there are many 3D printers out there which can be wirelessly controlled and monitored this is definitely nice from a management standpoint but my room full of Corollas unfortunately are not so high tech each printer runs ice isolated from a local SD card containing the print files”
The speaker moved his print farm from his basement to commercial space primarily due to fulfillment needs; he now has a 40-foot fulfillment area that is fully utilized during high-volume periods and could benefit from doubling in size.
“I've now got a full 40 foot long fulfillment area and when we're cramming to get orders out you can bet we're using every inch of it I could probably just by doubling it to be honest”
The speaker has planned a future video reviewing his findings on the viability of Bamboo Lab printers in a farm setting.
“I've got a video planned in the future reviewing those findings”
The speaker has created a membership-based community called 'Shop Nation Hustle Club' that provides exclusive access, guidance, and coaching based on his experience and the experience of other members interested in starting or growing a 3D printing business.
“I've actually got a special membership based Community setup where I give you exclusive access guidance and coaching based on my experience and the experience of others in the group it's called the shop Nation hustle club and I'll have that information linked down below”
The speaker has been a Factor (meal delivery service) customer for over two years and considers it a valuable service that solves the lunch problem for busy professionals, reducing the temptation to grab unhealthy quick food.
“I've been a paying customer factor for well over two years at this point so I'm not just some YouTube guy telling you to buy a mystery box I really think it's a valuable service worth considering”