| Feature | Nominal (mm) | Measured (mm) | Difference (mm) |
|---|---|---|---|
| Block X / Y / Z | 20 / 20 / 10 | 20.08 / 20.04 / 10.00 | +0.08 / +0.04 / 0.00 |
| Bar length / width / height | 40 / 10 / 4 | 40.03 / 9.97 / 4.01 | +0.03 / −0.03 / +0.01 |
| Tray cavity length | 35.20 | 35.06–35.08 | −0.14 to −0.12 |
| Tray cavity width | 25.20 | 25.11 | −0.09 |
| Lid insert length / width | 34.60 / 24.60 | 34.65 / 24.65 | +0.05 / +0.05 |
A good result on the supported shapes
The block was within 0.08 mm of its nominal dimensions. The bar’s largest reported error was 0.03 mm. The tray’s outer dimensions were also close, though its opening came out smaller than designed.
The box and lid assembled with a loose fit. Subtracting the measured insert from the opening gives about 0.21–0.23 mm clearance per side when centred. That is less than the nominal 0.30 mm, but still plenty of play.
The bridges and fins
The short bridge printed square. The two longer spans showed visible distortion and sag. On the 30 mm bridge, the reported envelope from the lowest belly to the top of the roof was 3.18 mm, against a nominal roof thickness of 2.00 mm. That is not the same as measuring 1.18 mm of downward sag.
The least demanding fin printed cleanly; the others had rough or failed unsupported surfaces. The revised plate keeps a short bridge and a mild fin, with a ramp and collared sphere for surface inspection. Those additions are not part of this set of results.
One reading needs care
The 30 mm bridge opening was recorded as 29.92 mm at the bottom and 31.51 mm at the top, alongside a note describing inward splay. Those do not agree if both readings use the same inside faces. We have left the original readings in place rather than guessing which should change.
Setup and estimates
The machine was a Bambu P1S with a 0.4 mm nozzle and Textured PEI plate. It used the Copymaster reel in AMS slot 2, with 210°C at the nozzle, 60°C at the bed and 0.20 mm layers.
The sliced job estimated 1 h 40 min 18 s and 22.14 g. Actual time, energy and consumed material were not measured here. The dimensions are workshop calliper readings; instrument accuracy was not independently verified.
Download the readings
Measurement table (CSV) — includes the ranges and imperfect features as well as the successful parts. The numerical record is unchanged.
For the shorter account, read the Copymaster print report.