Outsource vs In-House Decision Sheet for 3D Print Jobs That Should Not Stay on Your Bench by Default

Use this decision sheet when a job could stay in-house, move to a partner, or get declined, and you need one place to compare margin, timing, quality control, handoff burden, and capacity drag before habit makes the call for you.

What this decision sheet helps you do

• compare whether a job belongs in-house, outside the shop, or outside the offer entirely
• separate capacity pressure from true capability gaps, approval risk, and material mismatch
• see when outsourcing saves the order versus when it only hides a weak quote or weak handoff
• check whether the outside route still leaves enough margin after freight, management time, and remake exposure
• build a repeatable routing rule instead of re-arguing the same overflow decision every week

Who it is for

• small 3D print shops juggling custom jobs, repeat work, and overflow spikes
• owners deciding when a job should stay on the main bench versus move to a partner shop
• operators who already use handoff packets but still lack a blunt make-versus-buy screen
• sellers who want to protect margin without reflexively buying another machine or saying yes to every difficult job

What is included

• editable routing sheet for in-house versus outsourced versus decline decisions
• CSV template for Excel or Google Sheets
• planned PDF guide for field definitions and routing notes
• Pack F pilot positioning tied to overflow control and subcontracting discipline

When to use this sheet

Use Asset 17 when the question is not just can we print this? but should this stay on our bench at all? That usually shows up when a job pushes one of five pressure points:

• the machine, material, or finish lane is outside your normal control zone
• the schedule only works if it displaces stronger work already in the queue
• the order value looks fine until handoff, oversight, freight, or remake exposure get counted
• the buyer needs a capability you can broker cleanly but do not want to build in-house yet
• the request feels like a stretch and nobody has written down why

How to use it

1. Start with one real order opportunity or overflow decision, not a vague future scenario.
2. Enter the expected revenue, timing pressure, material or machine requirements, and approval condition.
3. Score the in-house lane for capacity fit, disruption risk, quality control confidence, and expected margin.
4. Score the outsource lane for partner fit, freight drag, oversight burden, handoff clarity, and remake exposure.
5. Record the route decision and one rule to reuse next time so the same judgment call does not stay informal.

What a clean outsource decision usually includes

• a named reason the job should not stay in-house
• a partner lane that already fits the tolerance, material, or throughput need
• a handoff packet strong enough that the outside shop is not guessing
• margin that still survives freight, coordination time, and likely exception handling
• buyer expectations that remain clear about timing, sample approval, and who owns what change risk

Common mistakes this page helps prevent

• outsourcing a weakly defined job and then paying for confusion twice
• keeping a bad-fit job in-house because saying no feels harder than taking the risk
• treating queue stress like a machine shortage when the real issue is release control
• forgetting to count partner management time as real labor
• accepting a difficult order because gross revenue looks healthy before remake exposure shows up

Related lessons and tools

• Course Home for the free course front door
• Toolkit for the wider tool stack
• Module 5 for staffing and outsource-routing discipline
• Module 7 for intake and quote control before route choice
• Module 8 for machine economics and capacity pressure
• GP3D Asset 07 for the handoff packet that makes outsourcing less fragile
• GP3D Asset 20 for checking whether crowding is real before you reroute work
• GP3D Asset 28 for promise control when timing is the reason a job might need to move out

Common questions

When should a shop outsource instead of forcing a job through its own machines?

Outsource when the order needs capacity, material capability, finish quality, lead-time protection, or process control your current bench cannot deliver cleanly without collateral damage. The point is not to surrender revenue; it is to protect margin and execution instead of pretending every order belongs in-house.

What usually makes a borderline job dangerous to keep?

Borderline jobs turn risky when they look doable at first glance but quietly consume too much setup time, rework, machine availability, or operator attention. That is where a simple route-choice sheet is useful because it forces the real bottleneck into view before the quote gets committed.

How should this decision connect to pricing and customer communication?

Use the route decision before you lock price, promise dates, or imply that production is already secured. If the order should move to a partner, the handoff logic needs to show up in the quote, schedule, and approval flow rather than appearing later as an excuse.

What other checks should sit next to this sheet?

Pair it with labor-estimation, machine-economics, approval-control, and change-order tools. Outsource versus in-house is rarely a standalone call; it sits inside a wider system of capacity, cost, revision risk, and release discipline.

Related reading

• Module 5: staffing, outsourcing, and handoffs
• GP3D Asset 18: bench-time and labor-cost estimator
• GP3D Asset 19: printer depreciation and reserve sheet
• What people still get wrong about 3D print farms
• Small-batch 3D printing service