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3D printable 6" f/5 compact travel telescope model

https://www.printables.com/model/1325533-smallest-telescope-kit-for-150750
1•chantepierre•5h ago

Comments

chantepierre•5h ago
Hello HN,

A friend released files for this 6" f/5 telescope conversion kit yesterday.

It is a synthesis of a lot of telescope builds he, I and a few friends made over the last years, as well as general ideas floating in the amateur telescope making community.

It is compatible with most existing 6" f/5 newtonian optics kits. I've tried his model IRL and was pleased with both the movements and the focuser, which is often lacking on commercial offerings (which are also heavier and bulkier).

Unmounted, it forms a quite compact package to hike with or take camping.

It is licensed under CC-BY-NC-SA as he would like to sell parts kit at some point, but the files found on Printables are fully functional.

incomingpain•5h ago
I 3d printed the 114 hadley telescope years back.

Saturn and Jupiter were easy, but not super clear. Mars was maybe just out of reach even on good nights.

This 6 inch will likely be perfect. Very clever design as well!

chantepierre•5h ago
The Hadley is the perfect gateway to telescope building.

A 6" packs a lot more punch in a not too much bigger package, and 6" f/5 consumer mirror kits that we test often range from okay (0.77+ strehl) to actually quite good (around 0.92).

You'd get quite an improvement on planets !

Most energetic molecule ever made is stable – in liquid nitrogen

https://www.chemistryworld.com/news/most-energetic-molecule-ever-made-is-stable-in-liquid-nitrogen/4021662.article
1•rbanffy•47s ago•0 comments

Using Signal Groups for Activism

https://micahflee.com/using-signal-groups-for-activism/
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https://www.youtube.com/watch?v=b2wimsBPmYI
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1•sorokod•5m ago•1 comments

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Anthropic Principle

https://en.wikipedia.org/wiki/Anthropic_principle
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https://phys.org/news/2025-06-biotech-fermentation-proteins-cows.html
1•PaulHoule•7m ago•0 comments

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1•paulpauper•10m ago•0 comments

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https://www.theregister.com/2025/06/10/trump_admin_leak_government_ai_plans/
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Coreapp Dashboard

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Ask HN: What are the most "upvoted" things you can buy here? Here are a few

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Sandia Deploys SpiNNaker2 Neuromorphic System

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3•Willingham•15m ago•1 comments

Russian Spies Are Suspicious of China

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2•gmays•15m ago•0 comments

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Don't Argue: Build

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Auto-Updating AI Expert Using Telegram Channels and NotebookLM

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1•astuteficus•18m ago•1 comments

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2•croes•19m ago•0 comments

GhostNet: The Cyber Espionage Operation That Shocked the World

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1•debarshri•21m ago•0 comments

Why today's graduates are screwed

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1•CITIZENDOT•23m ago•1 comments