Itty Bitty Bevel Gauge - Two Versions - Small Bevel Gauge Fits in Tight Spaces
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Two very small bevel gauges can capture angles in tight spaces, and the angle can then be read on a protractor.
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- Creative Commons — Public Domain
It often happens that when I am trying to copy a broken part, or make a part to fit into an existing space, that I need to measure an angle in a place where a conventional angle gauge is too big to fit. So I made these two little bevel gauges, which can be used to "capture" an angle which can then be measured with a protractor, digital angle gauge, or other angle measuring tool.
Each of these gauges requires an M2 X 8mm flat head machine screw and matching hex nut.
The "scale tag" you see in the photos can be found here :
https://www.printables.com/model/1710483-scale-bartag
Assembly and Use
Assemble each gauge by first fitting the hex nut into the hexagonal recess in the Nut print - this will be a tight fit (I use a pair of pliers to initially force the nut into the recess, then push it in with a screw driver). Insert the M2 screw into the Base square leg of the bevel (note the countersink for the screw head). Place the angled Bevel slot over the screw, and fasten with the Nut piece.
Finger-tighten the Nut so that all of the pieces are held together firmly, but the bevel legs can still move and hold their position.
To use the gauge, simply use the gauge to match the angle for the desired part, and then use a machinist protractor (see photos) or similar to measure the angle.
Print Instructions
Print in PLA using the 3mf files provided, otherwise :
0.2mm layer height
2 perimeters
20% rectilinear infill
cooling 100% fan*
nozzle temperature - "lower"*
For small parts like these, I find I have more success when the
* For small parts like these, I find I have more success when the cooling is set to maximum throughout the print process. I also use a "lower" nozzle temperature for printing the PLA - as a guideline, 10°C lower than the usual temperature (this may be different for your printer and filament).
CAD
The OnShape 3D CAD files for this are here :