Harmonic Drive Bracket·Ridgeline Robotics
Trial 3
InconclusiveA356Jul 21, 2026
Goal
Repeat trial 2 across eight parts to confirm the flatness is not luck.
Process
- Pour temp
- 702C
- Mold temp
- 160C
- Alloy batch
- A356-2607-B
- Trial date
- Jul 21, 2026
- Gating
- Unchanged.
- Changed from the previous trial
- Nothing. Repeatability check.
What came out
Defects observed
Six of eight under 0.2mm. Two at 0.28mm, both from the end of the pour.
Lessons learned
Suspect metal temperature drop across a long ladle. Next trial pours from a fresh ladle at the halfway point.