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Making tiny 0.1cc two stroke engine from scratch

77 pointsby pillarslast Sunday at 5:34 PM12 commentsview on HN

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xseertoday at 6:00 AM

I went down a rabbit hole lately and found this article on tiny diesel engines built throughout the past decades, most of them model engines: https://modelenginenews.org/techniques/minid.html

> I've seen collectors turn a greenish blue and stammer out crazy offers on sight of my 0.1cc Nano, pictured here. But as the size goes down, construction difficulty and criticality of "fits" goes up exponentially.

pillarslast Sunday at 5:40 PM

Some Model Engineering related resources:

1. Engineering drawings of small model engines used for model aircrafts. They are designed for manufacturing and working, not not like showcase item. We can actually build them.

https://outerzone.co.uk/plans.asp?cat=Engines&Xcardsperpage=...

2. https://modelenginenews.org/midge/index.html

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wcrossbowtoday at 8:07 AM

This is great. If you enjoyed it you should check https://www.youtube.com/watch?v=8IEGmD_aV3w . Next to that it’s child’s play. That’s a whole trasatlantic’s engine room from scratch.

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N_Lenstoday at 11:52 AM

If you want to see the engine running it's at 30:12

antonvstoday at 10:52 AM

I skipped some bits of the video so probably missed this, but: in the beginning he mentioned no spark or glow plugs and said “similar to a diesel”, but in the end that didn’t work and he had to resort to a glow plug.

Did he mention what fuel he was using for the compression-only attempts? If not actual diesel, it seems like he would have had to use ether or something like that.

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jiggawattstoday at 7:50 AM

I just noticed that this channel has 2 million views and only four videos, all from about a year ago!