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Private on-device repair evidence

Why Printed Holes Are Too Small

A detailed STLBEAST repair guide to compensate for extrusion, geometry, and material shrink without guessing. Learn how to recognize the symptom, rank the likely causes, apply safe fixes in order, verify the result, and prevent the failure from returning.

Not started0 of 8 stepsNot yet saved
Visual repair reference for why printed holes are too small
A small representative test no longer shows the original symptom.
First safe actionRun the first safe check and change one variable at a time.
Proof targetA small representative test no longer shows the original symptom.
Controlled tests logged0
Verification resultNot recorded
Machine and material context

Record the setup that produced this result

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Optional visual proof

Add before and after photos for this report

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One variable at a time

Controlled test history

No controlled tests have been logged yet. Return to Workshop Mode and record each change before running another test.
Repair sequence

Step completion

  1. 1
    Document the failure and confirm that it matches this guide: Circular holes print undersized or require drilling despite correct outer dimensions.Not completed
  2. 2
    Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.Not completed
  3. 3
    Check extrusion width intrudes inward. Measure a calibration part.Not completed
  4. 4
    Check material shrink. Use hole compensation.Not completed
  5. 5
    Inspect low polygon resolution. Increase model segment resolution.Not completed
  6. 6
    Rule out horizontal-hole sag. Reorient or support horizontal holes.Not completed
  7. 7
    Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.Not completed
  8. 8
    Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.Not completed
Private workshop notes

Observations and winning values

No notes recorded.

Verification test

Model
Hole-size coupon
Setup
Print several labeled holes around the required diameter.
Pass
The intended fastener or shaft fits without forced deformation.
If unchanged
All holes remain undersized or oval.
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