103mm Compact! Print in Place Galilean Telescope
Print Profile(2)
Description
Hey everyone, when you go out for a picnic, shouldn't you bring a telescope to enjoy the scenery and watch the small animals!
No complex assembly, no multi-part splicing needed — this Galileo telescope is specifically designed for 3D printing. Its three-section barrel structure allows for easy storage. The entire body, except for the two pressure rings on both sides, is Print in Place, allowing even beginners to complete it in 4 hours and pick it up to observe distant scenery!
🌟 Core Highlights: Making both Printing & Usage Simple
1. Print in Place saves time, beginner-friendly
- Fewer parts = less hassle: Apart from the 2 plastic pressure rings that secure the lenses, the three-section telescope barrel is Print in Place, requiring no glue for assembly. Simply install the lenses after printing and it's ready to use;
- Compatible with most printers: The model is compatible with common FDM 3D printers (print size ≥155mm×53mm×111mm). PLA or PETG filament is sufficient, costing only about 80g of filament.
2. 103mm compact storage, carry it in your pocket
- Retractable design for extreme portability: Expands to meet the optical distance (225mm) and retracts to a total length of only 103mm, shorter than a phone, fitting into a jeans pocket for outdoor observation anytime, anywhere;
- Lightweight and comfortable to hold: Fully PLA 3D printed, weighing approximately 80g, it can be held for long periods without discomfort, suitable for bird watching and sightseeing.
3. Reliable optical parameters, clear imaging
- Classic Galilean structure: Plano-convex objective lens (focal length 300mm, high light transmittance) + bi-concave eyepiece (focal length -75mm), 4x magnification, making distant road signs and treetop details clearly discernible;
- Precise spacing design: The telescope barrel has a built-in positioning structure, eliminating the need for repeated measurements when installing lenses. They snap directly into place, ensuring a 225mm optical distance and preventing blurred imaging due to spacing deviations.
Boost Me (for free)
- A test piece has been added to the print profile; if you're unsure, you can print the test piece first to see if you can easily extend the telescope barrel
📐 Key Parameters
Category
| Detailed Parameters
| Notes
|
Optical Performance
| Magnification 4x, objective lens focal length 300mm, eyepiece focal length -75mm
| Suitable for observing targets 50-1000 meters away
|
Printing Specifications
| Filament type unlimited, PLA printing is recommended, print layer height 0.2mm, do not split, do not split, do not split PETG can also be used, but the texture is generally, you can refer to my pictures
| Supports only need to be added at the bottom
|
Dimensions and Weight
| Expanded total length 225mm, stored total length 103mm, weight approximately 90g
| Barrel inner diameter fits φ50mm objective lens + φ30mm eyepiece
|
Assembly Difficulty
| 1 minute to complete (only needs to install 2 lenses + 2 pressure rings) When installing the lenses, the convex side of the objective lens should face outwards. Once installed, it is not easy to remove, so please pay attention to the distinction
| The pressure rings can be pressed directly in, no tools required
|
- Recommended compatible lenses: It is recommended to purchase from Taobao, plano-convex lens 5cm diameter 300mm focal length / bi-concave lens 3cm diameter -75mm focal length, cost 5 yuan. If you have an 88vip shopping card, you can buy the two lenses separately for less than 1 yuan.
✨ Who is it for
- 3D printing beginners: A great practice tool, simple structure not prone to failure, with a clear use case upon completion of printing;
- Outdoor enthusiasts: Portable design suitable for observing distant scenery during camping and hiking;
- Parent-child crafting: Simple assembly process, allowing children to learn about optical principles, providing a strong sense of accomplishment!
Click to download the model, print your portable telescope, and take it outdoors to explore this weekend～
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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