日立示波器（V355及其他型号）中等尺寸旋钮更换

Hitachi Oscilloscope (V355 and others) Medium knob replacement

2024-01-14 03:48:46

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Summary

This is a functional replacement for the knobs on a 1980s Hitachi Oscilloscope. I printed these for a V-355 but it should fit others from the era. These are the knobs on the end of the voltage selector, but are also used elsewhere on the scope.

These knobs have a tendency to crack or be missing.

Print Settings

Printer brand:
Creality
Printer:
Ender-3 V3 SE
Rafts:
Doesn't Matter
Supports:
No
Resolution:
.1mm
Infill:
100%
Filament brand:
any
Filament color:
any (red and black are accurate to most scopes.)
Filament material:
PLA / any
Notes:
Printer was actually a V3 KE but that's not yet a selectable option.

For best results, try to get the seam to align with the selection detent. I did this by manually setting the seam to x = 5mm, y = -5mm on the model.

The part was small enough and printed slow enough where I didn't need a raft on my PLI print bed, but you may need to experiment with this.

Since slicers vary, you might need to scale this up or down a couple percentage points to get the center knob to properly fit. This friction fit pretty well as-is with default settings (aside from those mentioned) in the Creality slicer, but with something this small and precise YMMV.