Gina

A rocket sculpture made from scrap metal and a Spiral Galaxy made from felted wool.

Luvvit!!  🤣  You make I larf!!!

It's my birthday in a couple of weeks - I think you should give me a camera!!  🤣🤣

"Gave" them to you???  🤣

Yes, turned out to be the easiest solution overall.  See this thread for the latest info.

You need a decent Peltier TEC not a cheap Chinese clone.

It has changed somewhat since then but yes the cooling is working fine.

I think this may be the final model of the wind instruments.  Mainly printed in white PLA except for the mast and vane which are aluminium and the nosepiece/counterweight which will be turned in brass.  Oh and several nuts and bolts.

I saw it too.  Very interesting.

I tell 'ee - this program make I larf 🤣

Mini in a converted coach!!  Shades of  "The Italian Job"  🤣

Ha ha - bike chain...  I use bike chain to open & close my obsy roof (ROR).

Observatory building again.

VLT in Palomar.

Well you never know what's coming on!!!  🤣

My TV is 32" diagonal.  Suits me alright viewed at about 4 metres.

Or failing eyesight????!!!

1 minute ago, DaveS said:

Never mind, I have a 55" LG OLED coming from JL now they do a two man delivery and unpack.

WOW!!

Yes, that's true - it was a bit dragged out, I enjoyed it though.

Good programme I thought.

S'alright tis on...

on now.

They have rounded front edges.  (Can't play your video because the sound isn't working on my computer ATM).

Oops - you beat me to it. 

Tonight 9pm BBC 2 - Horizon is about Pluto - Back from the Dead.  From Radio Times :-

Quote

There might be life on Pluto. It sounds far-fetched, but that’s the conclusion some scientists have reached, and it’s one of the unexpected new angles explored in this intriguing edition of Horizon.
The insights come courtesy of New Horizons, a tiny spacecraft that travelled 3.26 billion miles to the edge of the solar system, sending back detailed imagery that reveals a geologically fertile world with, among other features, a nitrogen glacier and a recently active volcano. Moreover, Pluto’s abundant supply of organic molecules and liquid water suggest some form of alien life might exist.

For the wind vane where slow and back & forth motion is involved I'm going for PLA sideways bearings and a point contact single ball on a hard surface.  The ball is a 14mm chrome steel bearing ball and the hard surface is a Neodymium Magnet (these are coated with a very hard material).  Lubrication will be Liqui Moly 3510 LM 47 Long-Life Grease + MoS2 100 g

This is the basic arrangement.

Still developing the wind vane sensor and bearing unit but this is getting near.  8 reed switches held in holes.  The weather hood will have a magnet to operate the switches.