Today I acquired...........

[Barking Mat]

And today...

Any criticism, not interested, it's 'art'.

Yeah, I can obviously critique my work, and see what's wrong with it.

Client very happy.

 

[awemawson]

@Maker this is correct. In the days of the CEGB the frequency was monitored and controlled by Grid Control at Park Street London SE1 where two Ferranti Argus 500's had telemetry connection to the entire grid - frequency being controlled by bringing on or off generating capacity and pumped storage.

The control was distributed back around 2000 with several control centres around the country being established.

In a former life I was responsible for the maintenance and support of those Argus 500s !

 

[m_c]

I'm pretty sure (In the UK at least), the frequency is adjusted so averaged over a day, it comes out to exactly 50 Hz, because some things (Probably not much these days) use mains cycles for timing.

You're correct that the mains frequency does vary throughout the day, with it slowing under high load periods.

My uncle was chief engineer at a nuclear plant, and loved sharing his knowledge on this kind of thing. Probably because both his sons technical interest stopped around secondary school.

 

[25.4_mechanic]

And today...

Nice work

Did you already tell us which method was used for cutting?
Laser, water jet, plasma cutter?

Thank you!


Carsten

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[Barking Mat]

Nice work

Did you already tell us which method was used for cutting?
Laser, water jet, plasma cutter?

Thank you!


Carsten

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Plasma cutter, then I spent about 45 minutes with a grinder tickling it up, never taken a grinder to a nipple before...

 

[25.4_mechanic]

never taken a grinder to a nipple before...

... and neither should you!

Carsten

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[OJCar]

And today...

View attachment 343925

Having spent 45 minutes tickling the nipple, what are you doing with the hole ?

 

[Barking Mat]

Having spent 45 minutes tickling the nipple, what are you doing with the hole ?

I couldn't get in either of the two holes, with the grinder, they were too tight.

I really should grow up.

 

[OJCar]

I really should grow up.

I never have.

 

[roblane65]

I couldn't get in either of the two holes, with the grinder, they were too tight.

I really should grow up.

Why ?

 

[lotus_esprit_s1]

Treated myself to a new curved Speedglas G5-02 helmet to add to my Speedglas collection. 9100xx now relegated to MIG duty

 

[Barking Mat]

Treated myself to a new curved Speedglas G5-02 helmet to add to my Speedglas collection. 9100xx now relegated to MIG duty

View attachment 343940
View attachment 343941

Are you Zaphod Beeblebrox ?

 

[seabod]

Cebora 130 pocket mig. With a full bottle of gas, regulator, full 5kg .6 wire and a brand new pair of leopard gloves. All for the grand sum of £50.

 

[Kayos]

I acquired even more lighting, these are 20w halogen examination lamps, presumably being replaced for LEDs, loads of them being chucked with nothing wrong with them. I'm sure you could just swap the bulbs for LED.

View attachment 343908

Picture taken with the overhead lights off to show the spot they throw. I've got a drill and a mill either side of the bench, the lamps can swing round to light them which is probably how they'll mainly get used.

I do a lot of led upgrades these days, sometimes it's easier to swap the whole fitting rather than the lamp

 

[Barking Mat]

@Maker , show us the fittings, we're retro fitting loads of 12 / 24 volt halogen to Leds, got hundreds of them in the workshop...

 

[Maker]

@Maker , show us the fittings, we're retro fitting loads of 12 / 24 volt halogen to Leds, got hundreds of them in the workshop...

They're GU4 bulbs, don't think they're hard to come by (Unlike the mercury halide bulb I broke the other day ).

 

[jack-daniels]

You're correct that the mains frequency does vary throughout the day, with it slowing under high load periods.

My uncle was chief engineer at a nuclear plant, and loved sharing his knowledge on this kind of thing. Probably because both his sons technical interest stopped around secondary school.

I Bet he never dreamt this could be a thing!

"The hidden background noise that can catch criminals"​

 

[Barking Mat]

They're GU4 bulbs, don't think they're hard to come by (Unlike the mercury halide bulb I broke the other day ).

I'm pretty sure ours are the same.

There's two types, depending on where the connectors slide in.

Bung me a PM, with a photo, and I'll see what I can do.

12 - 24 volt.

We have hundreds...

 

[Bki26]

I Bet he never dreamt this could be a thing!

"The hidden background noise that can catch criminals"​

Ahh fellow Tom Scott enjoyer, was just about to link that

 

[25.4_mechanic]

Not as nice as @Barking Mat 's work, also far from being art and without any nipples - today fresh from the laser cutter for the Arboga to get around the proprietary tool holders with homemade stuff:

Designed on the cheapest CAD programme and emailed to the laser company around the corner I trust ...

First raw, straight out of the machine, still warm .....

.... after five minutes with wire brush and finger grinder .....

... and after using 1200 grit wet sandpaper for two and a half hours while watching snooker.


It works without the last step and snooker, but I wanted to have a set of them in shiny and it's Crucible time.


Carsten

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