How Max Created 3D Printed Telescope Accessories With the QIDI Q2

Astronomy enthusiast Max turned to 3D printing when he could not find telescope accessories that fit his HyperStar imaging setup. Using the QIDI Q2, he designed a custom dew shield, cable holder, focus masks, covers, and plugs tailored to his telescope. The project helped solve practical problems with cable routing, filter access, and dew protection, while also introducing Max to a new maker hobby. He later became the first-place winner of QIDI’s Geek Spirit Contest.

Why Max Started 3D Printing Telescope Accessories

Max already owned a working telescope and wanted to make better use of it. After deciding to add a HyperStar lens, he began planning how the complete imaging system should operate.

He considered the position of the camera, access to filters, dew protection, cable routing, setup time, and ease of use in the dark. During this process, he realized that the available adapters and accessories did not provide the combination he needed.

Some products were too expensive. Others were not designed for his particular telescope and camera arrangement.

Instead of repeatedly compromising the setup, Max decided to produce the missing parts himself.

“I started 3D printing as a means to adjust, design, and produce accessories for my telescope.”

This was more than a small modification. It was Max’s first serious attempt to design and build a complete functional system through his own work.

A 3D printer gave him control over dimensions, mounting points, cable paths, materials, and future revisions. If a part did not fit correctly, he could adjust the model and print another version instead of searching for a different commercial accessory.

Why the HyperStar Setup Needed Custom Parts

Max uses a Schmidt-Cassegrain telescope, commonly known as an SCT, with a HyperStar lens.

In his setup, HyperStar changes the telescope from approximately f/10 to f/2 and positions the camera at the front of the optical tube. This creates a much faster imaging configuration, but it also introduces several mechanical challenges.

Power and data cables must pass close to or across the front aperture. When these cables follow uncontrolled paths, they can contribute to unwanted diffraction patterns and irregular star spikes in captured images.

The camera position also makes a conventional dew shield harder to use. Max still needs access to the camera and filters, so a shield that is permanently fixed or difficult to remove would slow down setup and adjustments during nighttime imaging.

His custom system therefore needed to:

• Fit the telescope securely
• Leave space for the front-mounted camera
• Control the path of power and data cables
• Allow quick access to camera filters
• Remain easy to handle in the dark
• Help limit unwanted light around the imaging system
• Separate into practical parts for installation and storage

The project was not simply about printing a cylindrical cover. Max needed a coordinated system that worked with the telescope, camera, cables, filters, and dew-control equipment.

How the Custom Dew Shield System Works

Max divided the custom dew shield system into three main parts: a mounting base, a removable shield, and a cable holder.

Each component addresses a different part of the telescope setup.

A Telescope-Specific Mounting Base

The first component is a base attached to the front of the telescope. It provides the mounting structure for the dew shield system and helps organize the dew heater cables.

Max used M6 bolts to secure the base. He also built cable-routing paths into the design so the heater cables would not hang loosely around the optical system.

Flexible TPU parts act as cable retainers and stray-light blockers. TPU was used for smaller functional parts, such as light blockers, cable plugs, and protective covers. Its flexibility makes it suitable for components that need to fit around the telescope system while helping reduce unwanted light and protect the setup from dust.

The dimensions of the base were especially important. Because it connects directly to the telescope, a small measurement error could result in movement, poor alignment, or difficulty attaching the rest of the system.

A Removable Snap-Fit Dew Shield

The second component is the dew shield itself.

Instead of relying on several screws or a complicated locking mechanism, Max designed the shield to snap directly into the mounting base. This makes it easier to install and remove without handling loose hardware in the dark.

Developing the snap fit was one of the most demanding parts of the project.

The connection had to be tight enough to prevent the shield from wobbling or falling away. At the same time, it could not be so tight that installation and removal became difficult.

Max completed approximately two to three iterations of the base and shield before reaching a practical fit.

This stage showed why printed tolerances matter in functional projects. Two parts can appear correct in a CAD model but still need small dimensional adjustments after printing and assembly.

A Cable Holder for the Imaging Setup

The third component is a custom cable holder.

Instead of allowing camera cables to cross the front of the telescope in random positions, the holder keeps them along more controlled paths. Max designed the routing arrangement to reduce the cables’ effect on incoming light as much as possible.

Slots at the front of the dew shield provide additional cable-routing points. Together, the slots and cable holder keep the setup more organized while maintaining access to the camera.

This component solves both an imaging problem and a usability problem. Better cable control can help reduce unwanted optical artifacts while also making the equipment easier to assemble, inspect, and operate.

More 3D Printed Telescope Accessories

The dew shield system was the largest part of the project, but it was not the only accessory Max designed.

He also created:

• Two different focus masks to support focusing and collimation
• A flexible TPU cover for the front of the system
• TPU cable plugs that help block dust and unwanted light

Each accessory was designed around a specific need within the same telescope setup.

This is one of the practical advantages of 3D printing telescope parts. Once the main system has been modeled, smaller covers, guides, holders, plugs, and protective components can be developed around it.

The design can also continue evolving after the first version works. A problem discovered during an imaging session can become the starting point for the next printed part.

From an Idea to a Working Prototype in Two Weeks

Max developed the first working prototype in approximately two weeks.

He created the original design entirely in Tinkercad, a browser-based modeling tool often used for relatively simple CAD projects. Although the software does not provide all the features of advanced parametric CAD platforms, it gave Max enough control to turn his idea into a functional assembly.

The first prototype was printed with HT PLA.

At that stage, the main goal was to test the design rather than produce a final version. Max wanted to confirm the overall dimensions, mounting method, cable routing, camera access, and snap-fit connection.

Because most of his astronomy work takes place at night, he did not initially expect the parts to face high ambient temperatures. They were also not intended to experience frequent or heavy mechanical loading.

HT PLA therefore provided a practical starting point for testing the concept.

Max also avoided reprinting the complete system after every small adjustment. When he needed to test a connection or tolerance, he cut the model down and printed only the relevant section.

This approach reduced filament use and shortened the time between design changes. It was particularly useful for adjusting the snap fit and the connection to the telescope, where small differences could determine whether a part was loose, secure, or too difficult to install.

Improving the Design With the QIDI Q2

Once the first prototype worked, Max began considering more accurate revisions and different material options.

He had initially focused on PLA because it was familiar and generally straightforward to print. As he gained more experience with functional parts, he began looking for materials with different mechanical and environmental properties.

During this process, Max began using the QIDI Q2 to explore more advanced materials.

Max had previously expected materials such as ABS and ASA to be difficult to manage. After working with the Q2, however, he found the transition easier than anticipated.

“I was afraid to use more advanced filament types, but with the Q2 this proved to be an unnecessary concern.”

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The printer’s enclosed structure and built-in chamber heating helped Max work with ABS more consistently for his project. He has since started experimenting with ABS-GF and is considering PPS-GF for future astronomy parts that may benefit from greater stiffness.

Advanced filaments still require appropriate settings, proper storage, suitable nozzle hardware, and designs that account for the properties of each material. Max’s experience does not mean every material prints exactly like PLA.

Instead, it shows how the right printer features can give a developing maker more confidence to move beyond basic prototypes and explore a wider range of functional materials.

Why Max Chose the QIDI Q2

Before researching 3D printers, Max was not familiar with QIDI.

He wanted a printer that could produce the telescope parts he had planned without requiring extensive hardware modifications. He also needed enough build space for components such as covers and dew shields, which can quickly exceed the working area of a compact printer.

Three factors influenced his decision:

• A build volume suitable for larger telescope accessories
• Support for the filament types he wanted to explore
• A combination of capabilities and price that matched his project

The larger build area allowed Max to develop more complete parts instead of dividing every accessory into several small sections.

Material capability was equally important. He did not want to remain limited to early PLA prototypes after the design had been proven. The QIDI Q2 gave him a practical path toward ABS, ASA, and reinforced filaments as his knowledge and project requirements developed.

Compared with the bed-slinger printer he had previously used, Max found the QIDI Q2 much better suited to the type of functional printing he wanted to pursue.

What Max Learned From the Project

Max began the project as a new 3D designer using a relatively simple modeling tool.

The design still required him to manage mechanical fit, removable connections, cable routing, optical access, and interactions between several printed parts. Completing the first working version showed him that he could solve a complex practical problem through repeated design and testing.

It also helped him identify the skills he wants to develop next.

Max now plans to learn more advanced CAD software and create a fully parametric version of the dew shield system. A parametric model would make it easier to adjust key measurements for different telescope models and sizes without rebuilding the entire design from the beginning.

His process offers several useful lessons for other makers:

• Start with a clearly defined practical problem
• Design around the complete equipment system
• Test important tolerances with partial prints
• Expect snap fits and mounting points to need revision
• Confirm dimensions before committing to final materials
• Use each prototype to guide the next improvement
• Develop CAD skills as project complexity increases

Functional 3D printing often follows this pattern. The first version proves that the idea works. Later versions improve fit, weight, material use, reliability, and compatibility.

Winning the QIDI Geek Spirit Contest

Max later shared his astronomy and 3D printing journey through QIDI’s Geek Spirit Contest and became the first-place winner.

As the winner, he received a QIDI Max4 and has already begun using it for the next stage of his projects.

The original telescope accessory system was developed around the QIDI Q2. The Max4 represents a new opportunity rather than the printer behind the first prototype.

Max joked that the Max4 build volume is so large that he may now need a bigger telescope to give himself larger accessories to print.

Behind the joke is a genuine expansion of his plans. The additional build space gives him more freedom to explore larger telescope components and more ambitious functional projects.

What Max Plans to Build Next

Max’s immediate goal is to rebuild the dew shield system with improved accuracy, lower weight, better material choices, and more adaptable dimensions.

He wants the next version to become a truly parametric design that can be adjusted for a wider range of telescope models and sizes.

His longer-term plans are even more ambitious. He hopes to build:

• A complete working telescope from scratch
• A home-built harmonic-drive telescope mount
• A full imaging system combining 3D printed parts with high-quality optical and mechanical components

These projects will require more advanced CAD work, careful material selection, and closer control over tolerances. They are also a natural continuation of the process that began with one missing telescope accessory.

From a Telescope Problem to a New Maker Hobby

Max did not begin 3D printing because he wanted to collect machines or print decorative models. He began because his telescope needed parts he could not easily buy.

Designing those parts gave him control over fit, cable routing, nighttime operation, and future improvements. It also introduced him to CAD, material testing, prototype iteration, and functional design.

What started as a custom dew shield developed into a complete accessory system and a new technical hobby.

For Max, the project is not finished. A more accurate and adaptable version is already taking shape, followed by plans for larger astronomy equipment and a complete imaging system.

As Max and other astronomy enthusiasts would say: clear skies.