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Fine adjustment

Fine adjustment

By Senku Ishigami

  • Easy to print
  • High accuracy

The mechanism can be viewed as a lever, which converts a large linear motion into much smaller one. It can be used to achieve fine control over a linear motion.

By using only compliant hinges, the mechanism can be printed as a single piece (requires no assembly ) and has no play, so very smooth control can be easily achieved.

Machine The component will be designed to the chosen machine specifications =
Material Only the selected materials will be considered for the design =
PLA +2
Output travel Desired translation of output shuttle from the rest position = mm
Gain Precision amplification factor. To move the output of 1 mm, the input needs to be moved by gain mm =
Output d The diameter of the interface hole in the output shuttle = mm
Anchor screw d Size of the screw which will held the device in place = mm
Inter hole dx = mm
Inter hole dy = mm

Thickness max Maximum thickness allowed for the device mm
Load max Maximum vertical load which must be supported by the output shuttle N
Cycles How many cycles the component should be able to survive without failures k cycles
Mass Component mass will not exceed this value kg
Temp min Will work down to min temperature or lower °C
Temp max Will work up to max temperature or above it °C

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.zip folder with

FILE Printing handbook .pdf A copy your design requirements .txt Bill of materials .csv 3D models approx. 250kB

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Nozzle d Nozzle diameter. If possible, features thickness will be chosen as a multiple of this value. = mm
Min layer t Minimum layer thickness. Smallest height which ensures good quality. = mm
Min w Minimum width which ensure a good quality print. This is the thinnest wall you can print. = mm
Min tol Minimum tolerance. The smallest value x such that a cylinder of diameter d will fit in a hole of diameter d+x. = mm
Pip tol Print-in-place tolerance: defined as Minimum tolerance, but with the cylinder printed inside the hole. = mm
Printer bed size x Size of the printing bed = mm
Printer bed size y Size of the printing bed, perpendicular to x = mm
Printer max h Maximum height for a printed part = mm
Max bridge Max length for a bridge = mm
Max overhang Max overhang angle, measured from the vertical (90 deg is horizontal). = deg

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