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

[Richiew]

Silicon.

Silicone

 

[Maker]

Please forgive my ignorance.

I know silicone as something soft that I can't reconcile with carbide - something really hard ...!?

Is there anything special around you that I don't know yet?

On the other hand, I occasionally rework dovetail guides with different fine, wedge-shaped silicium carbide grinding and honing stones ...

View attachment 329591

Is it possible that the two terms silicone and silicium can be used synonymously over where you live?

Many thanks for any clarification

Have a nice evening all,


Carsten

--

I've never heard of silicium, must be a German word, it's silicon (No e) carbide (Or carborundum) here. Silicon and silicone do get confused sometimes but they are different things, one's an element, ones a polymer containing the element.

 

[25.4_mechanic]

Silicon.

Silicone

I've never heard of silicium, must be a German word, it's silicone carbide (Or carborundum) here. Silicon and silicone do get confused sometimes but they are different things, one's an element, ones a polymer containing the element.

Thanks!

There is a German word "Silizium", of which I had previously known the international spelling "Silicium", as on the whetstones shown, whose German name is "Silizium Karbid".

The other way round: The first semiconductor that acquired practical use was made with "germanium" (no idea who found that element ... )

the second and better material for semiconductors then became silicium, which is still important today, our age is named after it .... Not?

You don't use that word at all???


Carsten

--

 

[Pete.]

....it's silicone carbide.........Silicon and silicone do get confused sometimes........

Quite often actually

 

[Maker]

Quite often actually

Bloody hell. I'd like to blame autocorrect but I posted from my laptop.

 

[Johnnybravo]

Please forgive my ignorance.

I know silicone as something soft that I can't reconcile with carbide - something really hard ...!?

Is there anything special around you that I don't know yet?

On the other hand, I occasionally rework dovetail guides with different fine, wedge-shaped silicium carbide grinding and honing stones ...

View attachment 329591

Is it possible that the two terms silicone and silicium can be used synonymously over where you live?

Many thanks for any clarification

Have a nice evening all,


Carsten

--

Silicon carbide is one Si atom bonded to four carbon atoms. It’s a synthetic material with numerous uses varying from ceramic brake discs to lightning conductors. It’s been made for the best part of sixty years. Also used in the manufacture of certain types of glass. It’s a semiconductor.This was part of something used on a high tension power line. It was a horrible thing to make because of a design that incorporated a number of undercuts. When they came to make the tooling,they ran into problems,hence me machining a model of it in Aluminium from which they made a silicone mold which was then used to produce the tooling

 

[Johnnybravo]

The other way round: The first semiconductor that acquired practical use was made with "germanium" (no idea who found that element ... )View attachment 329594

A dyslexic flower seller?

 

[25.4_mechanic]

A dyslexic flower seller?

No, it was Clemens Winkler (1838-1904). Germanium was first detected on 6 February 1886, he called it after his home country.

Clemens Winkler, was a chemist at the Freiberg Mining Academy who was working with cobalt glass.
He examined the mineral argyrodite and found the new element germanium.
It later turned out to be the eka-silicium that had been predicted by Dmitri Mendeleev in 1871.

 

[Johnnybravo]

No, it was Clemens Winkler (1838-1904). Germanium was first detected on 6 February 1886, he called it after his home country.

Clemens Winkler, was a chemist at the Freiberg Mining Academy who was working with cobalt glass.
He examined the mineral argyrodite and found the new element germanium.
It later turned out to be the eka-silicium that had been predicted by Dmitri Mendeleev in 1871.

Tell the kids of today and they would never believe you

 

[25.4_mechanic]

I wonder if I will ever recover from that stupid question....

-

Sunday evening, a phone call, "I don't know if you can do anything with it, it's in a cellar, that has to be empty, the thing is really heavy, something mechanical, but it doesn't do anything - I'll send pictures":

A rusty heap, stood in a damp cellar against a damp wall on the damp floor - but still promising - got it yesterday, round trip ~100km.

Absolutely solid, nothing moved, not even the bakelite lid could be pushed open - so first I soaked it in Ballistol.


Today I went to work : it is - you have seen for yourselves - a dividing head or dividing apparatus.

But this is an FVT from Friedrich Deckel, Munich - the company that has virtually set the standard in mechanical engineering here at home, at least for milling machines. Some people would give their right arm for a good FP1 or FP2; these and their successors FP3 and FP4 can still be found in productive companies today ...

I have been able to achieve that much in the meantime:

Everything moves again, every function is given, all scales are free and readable again!

The gear ratio is 1:40, 40 turns of the handle for one full rotation of the work piece.

The head every 15° has a detent for 24-fold direct dividing, the small spring-loaded knob is armed by raising it and locks into the next 15° detent when the handle is cranked.

For indirect dividing I only have this one disc, but something can be done about that ...

Enough rust seen for today

Carsten

--

 

[Pete.]

That's a valuable piece! Similar to mine yet more desirable for the fact that's it's original Deckel not a clone or a copy

 

[25.4_mechanic]

That's a valuable piece! Similar to mine yet more desirable for the fact that's it's original Deckel not a clone or a copy

But yours is in better shape and I see at least one more grease nipple.

But how did they solve the locking mechanism in the dovetail at the top, which is different from the Deckel?

Where did yours come from? What is it called?

There is certainly more hard work and pride in it than in the junk that has reached me recently from China and India ....

Carsten

--

 

[minimutly]

Bah, @Pete. beat me to it. Pay more attention @25.4_mechanic ...,
All you need now is the mill to go with it - turn detective to find it?

 

[JMS1972]

I wonder if I will ever recover from that stupid question....

-

Sunday evening, a phone call, "I don't know if you can do anything with it, it's in a cellar, that has to be empty, the thing is really heavy, something mechanical, but it doesn't do anything - I'll send pictures":


View attachment 329617



A rusty heap, stood in a damp cellar against a damp wall on the damp floor - but still promising - got it yesterday, round trip ~100km.

Absolutely solid, nothing moved, not even the bakelite lid could be pushed open - so first I soaked it in Ballistol.


Today I went to work : it is - you have seen for yourselves - a dividing head or dividing apparatus.

But this is an FVT from Friedrich Deckel, Munich - the company that has virtually set the standard in mechanical engineering here at home, at least for milling machines. Some people would give their right arm for a good FP1 or FP2; these and their successors FP3 and FP4 can still be found in productive companies today ...

I have been able to achieve that much in the meantime:

View attachment 329619

Everything moves again, every function is given, all scales are free and readable again!

View attachment 329622

The gear ratio is 1:40, 40 turns of the handle for one full rotation of the work piece.

The head every 15° has a detent for 24-fold direct dividing, the small spring-loaded knob is armed by raising it and locks into the next 15° detent when the handle is cranked.

For indirect dividing I only have this one disc, but something can be done about that ...

View attachment 329623


View attachment 329624

Enough rust seen for today

Carsten

--

You won't fit that on the Myford

 

[25.4_mechanic]

Bah, @Pete. beat me to it. Pay more attention @25.4_mechanic ...,
All you need now is the mill to go with it - turn detective to find it?

No idea what you could be referring to ...

You won't fit that on the Myford

You are right, 100%


Carsten

--

 

[Olderisbetter]

I acquired pipework today

 

[Mick Annick]

A charrette, a small cart. Our elderly neighbour has it in her field barn which she’s now sold and wants rid of it. It’s quite small and has very short thin shafts, so not horse-drawn; maybe a donkey cart, or just hand drawn?

 

[slim_boy_fat]

That's a valuable piece!

The drinks are on @25.4_mechanic Cheers, Carsten

 

[Mick Annick]

A charrette, a small cart. Our elderly neighbour has it in her field barn which she’s now sold and wants rid of it. It’s quite small and has very short thin shafts, so not horse-drawn; maybe a donkey cart, or just hand drawn?

View attachment 329642

How best to preserve it? Don’t want to do a full repaint - any advice please @The_Yellow_Ardvark ?

 

[dan.taylor.1]

A package containing something I have wanted to buy for ages!
I had flat batteries on the Surf on Saturday and borrowed a mates NOCO GB40 booster and it just about managed to start it so I've gone for the GB50 and a protective case
Halfords discount and delivered in 48 hours!
View attachment 329526View attachment 329527View attachment 329528 I feels like a very nice bit of kit!

Just bought the genius 10 charger and it's great, brought a dead lawnmower battery back my other charger wouldn't charge. When funds allow if like one of the boost packs.