Radius Gauge (RadGauge NANO)
Print Profile(4)
Description
Congratulations on finally discovering FunOrNothing :)
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.)
Regular version of RadGauge here. (There are something to read about this tool)
RadGauge Family
| Name | Measure Range (Radius) | Scale Unit | Measure Location | Size (mm) | Scale Type |
| 1~50mm | metric | Outter Round | 81.3 x 70.7 x 6.4 | ||
| 1~80mm | metric & imperial | Outter Round | 136.4 x 113.1 x 7.0 | ||
| 1~30mm | metric | 62.5 x 50.7 x 5.8 | |||
Meet RadGauge NANO, the most compact member of the RadGauge family — now with full support for both outer and inner radius measurement.
This tiny tool uses a single sliding mechanism to drive the same indicator dial, whether you’re measuring external curves or internal corners.
To check an inner radius, simply flip the tool and press the rear edge of the slider into a corner — the pointer still moves, showing the same dial reading.
Despite its small size, NANO is built for real precision.
It even includes two keychain holes, making it perfect for everyday carry.
📐 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.
Features:
- Measures radii up to 30mm
- Supports both outer & inner curves
- Uses the same dial for both directions (fully mechanical)
Keychain-ready and ultra-portable
Recommended settings:
- Layer height: 0.1–0.2mm
- Material: PLA or PETG
- Supports: Not required
Due to the small size of the device, the gears are also very small, requiring precise printing.
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✔ 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.
✔ Assemble layout. (Important)- Super easy and quick assemble.
Assemble at 30mm 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.
How to use (measuring inner corner)
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.
New RadGauge-Dual NANO released
This new model can measure the radius of very thin objects and has a 1:1 linear scale.
If you love old games, or something cute for keyring, R-MAN is ready for you.
______________________________________
06/19/2025 Model Update
1. Modified the profile so that the scale and letters can be printed cleanly.
2. Changed the triangle pointer to a straight line.
Hope you Enjoy this model.
As always, I welcome your feedback.
Click to Check out FunOrNothing's interesting designs.
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Your boost helps me spend more time creating better designs. And don’t forget to check my other models — you might discover something useful and fun! 😊
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Membership
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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