poorvith-mp 3D Printing
Diagnose 3D print quality problems that trace back to material and thermal settings.
Process
- Identify the symptom precisely — stringing, layer separation, warping, under-extrusion, elephant foot and poor overhangs each point at different settings.
- Change one variable at a time. Print a calibration tower rather than adjusting four settings and printing one part.
- Start with temperature. Run a temperature tower for the specific filament and spool; published ranges are a starting point, not a value.
- Then flow and extrusion multiplier, measured against a single-wall cube's actual wall thickness.
- Then retraction — distance and speed, tuned on a stringing test, and different for direct drive versus bowden.
- Then cooling, which trades overhang quality against layer adhesion. PLA and ABS want opposite answers.
- Record the working profile per filament and printer, including ambient conditions. Humidity in the filament explains a surprising share of unexplained failures.
Deliverables
- Symptom-to-cause diagnosis
- Calibration sequence with one variable per test
- Saved profile per material and printer with conditions noted
Verification & Quality Checklist
- Code compiles and all automated tests and typechecks pass without new warnings.
- Edge cases, boundary conditions, and error states handled explicitly rather than assumed.
- No hardcoded secrets, credentials, or insecure defaults introduced.
- Changes are covered by a test that fails without them.
Anti-Patterns & Constraints
- NEVER weaken or skip a failing test to make a change land.
- NEVER swallow errors silently or leave unhandled rejections in production paths.
- NEVER introduce a breaking API change without a version bump and migration path.