Radius Gauge (RadGauge)

🌀 RadGauge – Radius Measurement Tool Radgauge is an innovative device designed to quickly and accurately measure the radius of a curved surface. Currently, various designs are available depending on the measurement range and function, and the characteristics of each design can be checked in the table below. (Click on the letters in the table to go to the page where you can print the design.) RadGauge Family

NameMeasure Range (Radius)Scale UnitMeasure LocationSize (mm)Scale Type

RadGauge 1~50mmmetricOutter Round81.3 x 70.7 x 6.4enlarged arch

RadGauge MEGA 1~80mmmetric & imperialOutter Round136.4 x 113.1 x 7.0enlarged arch

RadGauge NANO 1~30mmmetricOutter & Inner Round 62.5 x 50.7 x 5.8enlarged arch

RadGauge GIGA 50~160mm metric & imperial Outter Round 144.8 x 130 x 8.2 enlarged arch

RadGauge-X (need bearing) 1~50mm metric Outter Round 81.3 x 70.7 x 6.4 enlarged arch

RadGauge-Dual 1~50mm metric or imperial Outter & Inner Round 85.3 x 84.0 x 5.8 1:1 linear

RadGauge-Dual MEGA 1~80mm metric or imperial Outter & Inner Round 120.3 x 130 x6 1:1 linear

RadGauge-Dual NANO 1~30mm metric Outter & Inner Round 58.4 x 54 x 5.3 1:1 linear

RadGauge R-MAN 1-30mm metric Outter Round 60 x 60 x 5.3 1:1 linear

RadGauge NANO is ready for those who need to measure inner corner radius or want to carry everywhere.

RadGauge MEGA is ready for those who need to measure larger radius.

RadGauge GIGA is ready for those who need to measure even larger radius.

For those seeking even higher precision, the Radgauge-X is available. Each component is tightly packed and uses a bearing.

The RadGauge-Dual is a unique device that can measure both outer and inner radii up to 50 mm with a 1:1 linear scale.

If you love old games, or something cute for keyring, R-MAN is ready for you.

🔧 How It Works RadGauge starts measuring from the 50mm mark. When the arm is pressed against a curved surface, it rotates inward, which in turn drives an internal gear. This gear is connected to a dial, where a pointer moves to indicate the measured radius. After measuring, the pointer holds its position so you can bring the device up to eye level to check the result. A reset button on the back returns the arm to its initial position (50mm) for the next measurement. I initially considered an auto-initialization feature using a spring, but decided against it as I thought it might actually be a hindrance to accurate readings after measurements.

📏 Specifications

- Measuring range: R1mm to R50mm

- Scale interval: 1mm (What you read is Radius.. no calculation necessary. The scale is enlarged to a larger scale than the actual scale for much better readability.)

- Mechanism: Sliding arm + gear-driven dial

- Form factor: Compact, one-handed operation

- Reset method: Manual rear-button reset

Boost MeYour boost helps me spend more time creating better designs. And don’t forget to check my other models — you might discover something useful! 😊📐 On Accuracy You probably think that card gauges are the most accurate. That's true, but only if they match the card you're using, such as 5mm, 13mm, etc. The advantage of measuring with a scale is that you can estimate a more accurate number by reading between the scale marks, such as 5.5mm, 12.3mm, etc. This device allows you to do just that. Plus, the scale marks are spaced farther apart than the actual distance, making it even easier to measure.

The gears and scales are mathematically calculated and designed to minimize assembly tolerances and minimize measurement errors. However, due to the nature of 3D printing, there may be measurement errors depending on the quality of the output. But you will be amazed at the high accuracy.

If you are not satisfied with the accuracy of this model, I recommend the RadGauge-X, which uses a bearing and guide spring system to improve measurement precision.(CLICK)

✔ Before print this Since this model is a measuring tool, the tolerance is quite tight (0.1mm). Please make sure to use sufficiently dry filament, as you may experience difficulties in assembly if you use filament that is not sufficiently dry. If the build plate has insufficient adhesion, the scale may not print accurately. (The scale will be printed on the first layer first.)

✔ Assemble layout. (Important)- Super easy and quick assemble. Assemble at 50mm measure setting After aligning the parts as shown below, place the front cover horizontally in the correct position, cover it with something wide and solid like a ruler, and press firmly to allow easy and accurate assembly without damaging the parts.

1. General Licensing Statement This model is copyrighted and its commercial use is strictly prohibited. This falls under the Non-Commercial (NC) condition of the Creative Commons license. 2. Specific Prohibition on Reproduction Services PROHIBITION OF PRINTING SERVICES: Providing this model file to any third party for the purpose of paid reproduction (printing) is strictly prohibited. PERSONAL USE ONLY: All reproduction must be conducted solely on the end-user's personally owned 3D printer. This license condition forbids the use of printing services, even for a single personal copy. ⚠️ Official Notice Regarding RadianLab™ Model This model is exclusively manufactured and distributed under the RadianLab™ brand. The unauthorized sale of this product by any other individual or entity is strictly prohibited and constitutes a violation of my brand rights. I require that any instances of unauthorized distribution or sales be reported to me immediately. Product Information: While the products currently sold maintain the fundamental design, they incorporate additional proprietary structures engineered for superior accuracy and usability (user experience). Furthermore, every unit undergoes a rigorous quality control inspection before being offered for sale. 🔬 Measurement Test