Fisher Amplifier Knob Cap
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This is a replacement for the metal knob caps on old Fisher tube amplifiers that often fall off and go missing.
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Model information
- Source
- Printables
- Category
- Audio
- License
- Creative Commons — Attribution
This is a replacement cap for the knobs on old Fisher tube amplifiers that often go missing. It should be printed using Prusament PLA Blend Viva La Bronze, or something that gives a similar appearance. They also look good in black. Be Getting a good print isn't trivial. Latest settings:
0.4 mm nozzle
0.15 layer thickness
0.10 first layer thickness
60 bed
230 first layer
225 other layers
top infill pattern- concentric
bottom infill pattern-concentric
seams- random (may not matter in vase mode)
vase mode
complete individual objects
low retraction (depends on printer, 0.8 for me)
I do about 20+ up, taking care to start in the close left corner and following a serpentine pattern. Look at the tool head path in the viewer to be sure it doesn't hit parts as it moves around. The slicer will warn you that it will crash, but it's not all-knowing and if you've checked the tool path, it should work, probably because the parts are so low profile. The Viva La Bronze is nice, but black and brown are also good. Watch out for Prusa Mystic Brown as it's actually purple. An entire plate of these prints very quickly, about 17 minutes, and uses hardly any filament. You'll never get the Viva La Bronze PLA Blend off a PEI build plate. Use a Satin or Textured sheet. These settings eliminated a lot of minor defects.