Lockable Contour Gauge

Lockable Contour Gauge

by Tjalf · from Thingiverse
Free to print ♥ 7,647 likes ↓ 28,033 downloads

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A lockable contour gauge to copy/measure arbitrary shapes by pushing the blades against the desired shape and locking the gauge. The shape of the gauge can then e.g. be photographed and uploaded into a 3D CAD program.

I used this for example to measure the shape of my nose in order to design a custom, 3D printed FFP2 nose clip which replaces the flimsy metal clip and perfectly seals the mask. No more foggy glasses!

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Comments:

- The measurement range is ~100x50 mm (WidthxDepth).
- The gauge consists of 5 printed part models: Frame 1, Frame 2, Spring, Lever, Blade
- The scale on Frame 1 is in steps of 2 mm and designed for a 0.4 nozzle with 0.45 mm line width (thickness 0.9 mm, two lines). There is an option without the scale too (Frame_1_blank).
- Frame 2 comes in two options, one where the screws are self-tapping into the printed plastic (Frame_2_selftap) and the other with insertion holes for M3 nuts (Frame_2_nuts)
- Each blade is 2.4 mm thick with the option of a flat tip (Blade_Flat) or a chamfered one (Blade_Sharp).
- The blades can be locked with a lever on the side. It is not a hard lock - it just increases the amount of friction between the blades using a spring, so they don't move without applying a considerable force.

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Hardware you need:

- 5x M3x16
- 1 M3 nut (5 pcs. if Frame_2_nuts is used)
- Some sticky velours or similar

What to print (Standard version):

- Frame_1_Standard
- Frame_2_Nuts_Standard
-…

contourgaugelockableprofiletool

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