Add a printer that serves the orders you repeatedly struggle to ship: a fused filament fabrication (FFF) printer such as the Raise3D Pro3 HS for repeat filament jobs with validated material and process settings, a Digital Light Printing (DLP) system such as the Raise3D DF2+ for recurring fine-detail resin orders, or a selective laser sintering (SLS) system such as the Raise3D RMS220 for repeat nylon powder batches. Buy when printer time or a missing process limits shipments; expand finishing or inspection first if those stations are full, and use qualified outsourcing for irregular demand.
What is holding up your orders?
Pull 8–12 weeks of order and quote records, including late shipments and work you turned down or outsourced. Group orders by approved material, part size, batch quantity, tolerance, finish and promised lead time. Track how long jobs spend waiting at each stage, alongside machine hours, operator touch time and the number of parts that pass final inspection.
- Printer queue.If approved jobs regularly wait for a machine while downstream stations have room, add capacity in the qualified process. Start with the profiles and fixtures your team can transfer with the least requalification.
- Finishing or inspection queue.If printed parts wait for support removal, washing, depowdering, finishing or inspection, measure what that station can release per staffed shift. Buying another printer may simply add work to the queue.
- Missing capability.If you routinely outsource a repeatable family of parts because of material, geometry or finish requirements, benchmark the process that can bring those orders in-house. Include the volume and delivery pattern that the customer is likely to sustain.
Keep rush orders separate from work that can wait to fill a batch. Two processes can deliver the same weekly output and still perform differently against next-day commitments.
Which 3D printing process fits your order mix?
The dimensions below are manufacturer-rated build envelopes (width × depth × height). Check the sliced job in its intended orientation, with supports, brims or nesting clearances where applicable.
| Order mix and delivery requirement | Process and printer to evaluate | What to measure before buying |
| A steady backlog of qualified thermoplastic fixtures, housings or prototypes, with jobs released throughout the week | FFF — Raise3D Pro3 HS. The build volume is 300 × 300 × 300 mm in single-extruder print mode and 255 × 300 × 300 mm in dual-extruder print mode. The Pro3 Plus HS extends the Z-axis build height to 605 mm in either mode. | Time per loaded plate at the approved settings, including setup and turnaround. Track support removal, any heat-set inserts and dimensional yield. Verify that the required orientation and support strategy fit the usable envelope. |
| Recurring small parts with fine features or a cosmetic finish, and an approved resin that meets the end-use requirements | Digital Light Printing (DLP) — Raise3D DF2+. The build volume is 200 × 112 × 300 mm. A projected image cures each layer, so compare representative plate loads at their actual build heights. | Total time from print start to inspected part, including washing, curing, support removal and cleanup. Check critical surfaces for support marks and test the finished part in the selected resin. |
| Repeat orders for compatible nylon parts, with enough demand and scheduling flexibility to fill mixed or single-SKU builds | SLS — Raise3D RMS220. The build envelope is 220 × 220 × 450 mm, with a build volume of 21.8 L. Unsintered powder supports parts during the build, allowing three-dimensional nesting with appropriate spacing. Raise3D PA12 Black Powder is one supported powder. | Accepted parts per complete build cycle at realistic packing and with the intended powder. Include cooling, build-unit availability, depowdering, blasting where required, powder handling and inspection. Check whether waiting to fill a build fits the promised ship date. |
| Intermittent demand, specialized materials or rush orders that exceed staffed capacity | Outsource to a qualified partner. Use this route for overflow or to establish demand for a new process before adding equipment. | Compare landed cost per accepted part, sample approval, lot traceability where required, freight, reprint turnaround and actual on-time delivery. |
| Printed parts already pile up before finishing or inspection | Add finishing or inspection capacity first. Free operator time or expand the constrained station. | Measure accepted parts per staffed shift and check whether the extra capacity closes the shipment gap. |
For recurring tall FFF parts, compare a Pro3 Plus HS build with the current cost of splitting, joining and inspecting the part. For small filament jobs that already fit the Pro3 HS, the Plus HS has the same rated width and depth in the corresponding extrusion mode. Taller Z travel alone leaves room for the same number of parts on a given plate.
For SLS, plan the full production cell. Raise3D’s recommended RMS220 setup typically includes at least two Build Unit 220 units, a C220-P Cleaning Station, and a B520 Blasting and Polishing Station. The setup also requires an industrial vacuum/dust-control solution and the required compressed-air and site utilities. Two build units can allow one unit to cool or be depowdered while the printer starts the next job with the other, reducing idle time. Depending on the material, throughput, finishing requirements, and site conditions, the setup may also require powder storage and sieving containers, an optional polishing module, a UPS, an external or facility nitrogen supply, PPE, installation, training, and maintenance services. Confirm the final configuration with Raise3D or a local partner. Size downstream stations against the same order mix used to size the printer.
How much extra capacity would a printer actually add?
Suppose a bureau needs to ship 200 qualified PETG brackets per week. One additional FFF printer would run the same qualified job. The following numbers are illustrative planning inputs, independent of any Raise3D benchmark or customer case. The 12-part loaded quantity, 95% release yield, and 150-part downstream limit are illustrative assumptions, not measured Raise3D or customer results.
| Input or result | Illustrative value |
| Scheduled printer time per machine | 100 hours/week |
| Share of scheduled time available for complete cycles, after downtime and scheduling gaps | 80% |
| Complete machine cycle, including plate turnaround | 8 hours |
| Loaded quantity | 12 brackets/cycle |
| Share of printed brackets eligible for release after standard finishing and inspection | 95% |
| Expected print-side output per machine | 114 releasable brackets/week |
| Available shared finishing and inspection capacity allocated to this product family | 150 releasable brackets/week |
Each machine has 80 usable hours, enough for 10 complete cycles. At 12 brackets per cycle and 95% release yield, one machine supports 114 releasable brackets per week. Two machines could feed 228 per week, but with the existing shared downstream limit the bureau would ship about 150 per week. The second machine adds 36 weekly shipments under those assumptions and leaves a 50-part gap to the target. For this example, assume the 150-part weekly finishing and inspection limit is available to this product family after other orders are accounted for; reduce the available limit if shared stations are occupied by other work.
If finishing and inspection currently receive 10 operator-hours per week and release 15 accepted brackets per operator-hour, reaching 200 requires about 13 hours and 20 minutes of operator time per week at the same productivity, before any buffer. Confirm that staffing, inspection equipment and other orders leave those hours available. For DLP and SLS, use the same calculation with actual plate or build loads, and model the stations separately where washing, curing or cooling can overlap printing.
For a quote comparison, calculate cost per accepted part by dividing the cell’s costs for the period by the number of released parts. Include equipment allocation, material and waste, loaded labor, consumables, maintenance and rework. Also record on-time order completion. Weekly output can hide a shortfall when multiple rush orders need the same shift.
When does bringing outsourced work in-house make sense?
Compare the supplier’s landed cost per accepted part with your in-house variable cost and the incremental fixed cost of running the cell. For example, at $12 per accepted part from a supplier, $7 variable cost in-house, and $1,500 in monthly fixed costs, the cost crossover is 300 accepted parts per month ($1,500 ÷ $5). These figures are hypothetical. Use the crossover only for orders that pass the same acceptance checks and can ship within the same delivery window. Check whether demand stays above that volume in a slow month and whether the cell can handle the busiest week.
What do service providers’ expansion projects show?
Keene Additive Manufacturing — small contract jobs and larger builds.Raise3D’s case study reports that Keene grew from one E2 to eight printers. The team used the E2’s duplication mode for suitable small parts and added a Pro3 when it needed a larger envelope and more Z capacity. Keene provides prototyping and design services for local machine shops. For one rush job involving a tall part, the customer reported a 16-hour print on a Pro3 with the Hyper FFF® upgrade, compared with an estimated 50 hours without it. The bureau shipped the part the next day. The machine in this reported rush job was the Pro3 with Hyper FFF®, not the Pro3 HS ; the 16-hour result applies to that specific part and setup, not as a general Pro3 HS performance benchmark. The case reports print time for one job; batch size and labor by stage were not disclosed. The case illustrates how small-part duplication and larger-part capability can serve different queues within one shop.
JLC — FFF alongside existing resin and nylon services. Raise3D reported in 2023 that electronics manufacturing service provider JLC had procured 30 Raise3D printers in total and introduced E2 and Pro3 models. JLC added FFF to an operation that already offered resin and nylon printing, and the case identifies ABS as a commonly used filament. JLC’s experience illustrates how adding a process can expand the work a bureau accepts while preserving existing production routes.
The public cases document fleet choices and applications. For a purchase forecast, run your own representative batches to establish yield, operator minutes and lead time.
What should you ask a vendor to run before purchasing?
Send three representative jobs: a frequent repeat order, the geometry that causes the most rework and a rush order with a tight ship date. Give the vendor the approved material or the properties that any substitute must meet, the batch sizes, drawing tolerances and finish requirements. Ask for a timed run from job preparation through final inspection. Record the machine, material and lot, orientation, profile, layer height, parts loaded, elapsed time by stage, operator minutes, and counts accepted, rejected or reworked. Repeat the run on separate builds if the purchase depends on repeatability.
Compare the resulting accepted parts per staffed week, cost per accepted part and ability to meet the promised ship date. Include a retest or acceptance criterion for the variables that matter most, such as a critical bore, a cosmetic face or yield at normal batch density.
FAQ
Should I add another printer like the ones I already run?
Yes, when paid work regularly waits for that process and the next stations have capacity. Shared profiles, spares and training can simplify expansion. Confirm the exact material, settings and acceptance criteria on the new unit before routing customer orders to it.
When does SLS make sense if I already offer FFF?
Evaluate SLS when repeat orders need a powder-based material or benefit from 3D nesting and geometry that is difficult to support in FFF. Validate powder removal from cavities, the actual build fill and full turnaround. For irregular demand, compare in-house production with your current outsourcing cost and lead time.
Does resin printing automatically meet tighter tolerances?
No. Tolerance depends on the part geometry, resin, orientation, support placement and post-cure workflow. Specify the dimensions and surfaces the customer will inspect, then measure finished samples made with the proposed production settings.
How should a bureau plan capacity for rush jobs?
Reserve capacity at the station that determines the ship date and track when each job must enter it. For SLS or other batched work, set a build cutoff time. If a rush part cannot wait for that cutoff, quote a dedicated run or a qualified alternate route.
