20-Ton Bottle Jack Pressure Release Knob
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Estimated printing price per file
€1.24 – €1.52 net (excluding VAT)
For file: knob for bottle jack.gcode
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File used for this estimate
Average indicative estimate: €1.38 excluding VAT (range midpoint).
- Weight reported by the author
- 11 g
- Print time reported by the author
- 1.68 hr
- Source material
- PLA
- Estimate material
- PLA
- Estimate printer
- Bambu Lab P1S - 0.4 nozzle
- Estimate process
- 0.20mm Standard
Indicative estimate for the selected file only, based on the author’s weight and print time. File variants are not added together. The final price is calculated after file analysis.
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This knob is designed to fit my 25-year-old 20-ton bottle jack for my press. The dimensions are different from the…
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Ideas
- License
- Creative Commons — Attribution
This knob is designed to fit my 25-year-old 20-ton bottle jack for my press. The dimensions are different from the Harbor Freight bottle jack knobs, so I had to design my own knob.
The shaft diameter is 0.35 inches
The pin diameter is 0.15 inches
The pin length is 0.92 inches
The clearance between the pin and the base of the jack is only 0.09 inches.
The amount of shaft that protrudes beyond the pin is 0.15 inches.
I wanted the knob to be a snug fit and the finger notches of the knob to be rounded. The entrance for the pin seat is smaller than the pin diameter, so the knob has to be hit with the palm of the hand to seat the knob on the release valve. A picture is included showing the knob fully seated.
I chose to design only 4 points on the knob for simplicity. The fit of the knob in the hand is very good.
I hope this knob design can be used by others.
Print Settings
Printer Brand:
Prusa
Printer:
I3 MK3S
No
Supports:
No
0.15mm
Infill:
50%
Filament:
Prusament PLA Black
Notes:
3 perimeters
Align seams
Avoid crossing perimeters
Detect bridging perimeters
Category: Parts