How to Quote Additive Post-Processing

Quoting the print is the easy part. Most shops have dialed in their machine hour rates, material markup, and build-plate nesting logic. But the work that happens after the part leaves the printer — support removal, media blasting, vapor smoothing, heat treatment, inspection — frequently consumes more labor hours and calendar days than the build itself. If your quote only covers the print, you’re subsidizing the finish.

Why Post-Processing Breaks Quotes

Additive post-processing is highly variable. A DMLS Inconel part might need stress relief, HIP, EDM support removal, CNC machining of critical faces, and CMM inspection. An MJF nylon bracket might only need bead blasting and dye. The same geometry in a different material or for a different end use can swing post-processing cost by 5x. Most quoting templates treat post-processing as a flat percentage or a single line item, which works until it doesn’t.

Break It Into Discrete Operations

Treat each post-process step as its own quoted operation with inputs, outputs, and measurable cycle times:

• Support removal: Manual (hand tools, labor hours) vs. automated (soluble bath, ultrasonic, EDM). Track tank chemistry life and disposal cost for soluble supports.
• Surface finishing: Media blast (media type, pressure, cycle time), vapor smoothing (solvent consumption, chamber time), tumbling (media wear, cycle count), or CNC finishing (tooling, setup, machine time).
• Thermal processing: Stress relief, solution anneal, aging, HIP. Quote furnace cycle time, racking labor, and any fixturing needed to prevent distortion.
• Machining & EDM: Critical features often need subtractive finishing. Quote setup, tooling, and machine time separately — don’t bundle into a “finishing” catch-all.
• Inspection: Visual, dimensional (CMM, CT scan), material certs, NDT. Each has distinct labor and equipment costs.

Capture Geometry-Dependent Variables

Post-processing effort scales with geometry in ways the print doesn’t. Internal channels trap powder and media. Thin walls limit blast pressure. Tall parts need taller furnace racks. Build orientation — chosen for print speed or support minimization — may create finishing nightmares downstream. Your quote should reflect the as-printed orientation, not just the CAD model. If the customer dictates orientation, flag the finishing impact. If you choose orientation, optimize for total cost (print + finish), not print alone.

Account for Yield Loss and Rework

Post-processing is where good parts go bad. Vapor smoothing can warp thin features. Media blast can erode sharp edges. Heat treatment can move critical dimensions. Build a rework allowance into the quote — typically 2-5% of post-processing labor for established processes, higher for new material/geometry combos. Track actual scrap and rework by operation so the allowance becomes data-driven over time.

Quote Consumables and Maintenance, Not Just Labor

Blast media, solvent, furnace gas, EDM wire, CMM probe calibration — these are real variable costs tied to each job. A bead blast cycle isn’t “15 minutes of labor.” It’s 15 minutes of labor + 0.5 lbs of media + compressor runtime + filter amortization. The same logic applies to soluble support tanks (chemistry refresh, heating, filtration) and vapor smoothing chambers (solvent top-up, chiller runtime). If your shop floor system doesn’t capture these per-job, your margins bleed silently.

Link Post-Processing to the Print Quote

The cleanest workflow: the print quote outputs a “green part” spec (material, orientation, support strategy, critical dimensions). The post-processing quote consumes that spec and adds operations. When the customer requests a change — different surface finish, added inspection, tighter tolerance — you recalc only the affected downstream steps, not the whole quote. This is where a unified quoting engine pays off: one data model, multiple operation types, instant re-calculation.

Communicate the Timeline Clearly

Post-processing adds calendar days, not just hours. Furnace cycles run overnight. HIP is often outsourced with a 1-2 week turnaround. CMM inspection may queue behind other jobs. Your quote should show the critical path: Print → Cool → Support Removal → Heat Treat → Finish → Inspect → Ship. Flag any outsourced steps and their lead times. Customers who understand the timeline don’t call asking “where’s my part?” on day three.

Build a Post-Process Catalog Your Estimators Trust

Standardize the menu: define each operation with its inputs, typical cycle time, consumable rates, equipment, and required skill level. Give estimators a pick list, not a blank text field. Over time, replace “typical” with actuals from your MES — actual labor hours, actual media consumption, actual furnace cycles per job. The catalog becomes a living cost model, not a guess.

Conclusion

Post-processing isn’t an afterthought — it’s often the majority of the labor and lead time in additive manufacturing. Quoting it well means breaking it into measurable operations, capturing geometry-dependent effort, accounting for yield loss, and linking it to the print quote so changes propagate cleanly. Solvi helps digital manufacturers build that unified quoting model — print, post-process, and inspection in one engine — so every quote reflects the true cost of delivering a finished part.