wefalck

Acrylic paints are complex emulsions with either water, or alcohol or a mixture of both as solvents. They may also contain surfactants as emulsifiers. Emulsions are very delicate things and can easily break down when using the wrong solvents, resulting in curdling with resulting clogging of the airbrush for instance. In such cases they also do not form the cross-linked network of acrylic molecules that form the paint layer.
 
It appears that Vallejo uses a relatively simple system that can be diluted with water, dito. for the German Schmincke paints. I do not have experience with products of other manufacturers.

Acrylic paints are complex emulsions with either water, or alcohol or a mixture of both as solvents. They may also contain surfactants as emulsifiers. Emulsions are very delicate things and can easily break down when using the wrong solvents, resulting in curdling with resulting clogging of the airbrush for instance. In such cases they also do not form the cross-linked network of acrylic molecules that form the paint layer.
 
It appears that Vallejo uses a relatively simple system that can be diluted with water, dito. for the German Schmincke paints. I do not have experience with products of other manufacturers.

Acrylic paints are complex emulsions with either water, or alcohol or a mixture of both as solvents. They may also contain surfactants as emulsifiers. Emulsions are very delicate things and can easily break down when using the wrong solvents, resulting in curdling with resulting clogging of the airbrush for instance. In such cases they also do not form the cross-linked network of acrylic molecules that form the paint layer.
 
It appears that Vallejo uses a relatively simple system that can be diluted with water, dito. for the German Schmincke paints. I do not have experience with products of other manufacturers.

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

Roger , I love your method. I am an engineer soaked in thermodynamics, thus your suggestion is to be done. 
I will be starting the big gun in Mimi pretty soon and should be able to test your method.
 
BTW, I have forgotten about three more pending items on Mimi: the jack staff, the bow mast and the siren. The siren will be interesting as it has a conical loudspeaker. I plan to heat a brass tube and expand it to the conical shape with a mandrel a little bigger project that my fire buckets on the Fifie.
This is what the finish horn should look:
 
Guys, thanks for following guys.
 

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

If the intended purpose doesn't work out, you can always turn it into some workshop diorama - thinking about lathes, milling machines, overhead line-shafts and such things ...

Hello Ekis,
The project is currently dormant. I rigged the mast and spars, but waited to put the sails on it because then the model would be almost impossible to transport by car. My intention was to first take the model to the model discussion of my modeling club. That happened in November last year.

In the meantime I have started a new project: a kind of triptych of the sloop that we used to row during our nautical training in the navy in the seventies. I want to build a rowing version and two sailing versions of it. The rowing version is now ready, I am now making the sails of the first sailing version. Unfortunately I didn't get around to writing about it on this forum.

But now to answer your question: Yes, I intend to finish the clipper. And the story on the forum will take its course. It just might take a while.

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

How will the saw be driven? Seems to call for a horizontal steam-engine ...
 
I love this project. These wooden buildings have a lot of character!

The Saw Shed (Continued)
A minor update today. The Saw Shed Ridge Beam has now been installed.
 

 
Our attention turns, temporarily, to the shed roofing. The Saw Shed is roofed with corrugated iron sheeting. The kit provides some corrugated aluminium siding and some instructions on how to prepare this.
 
Here is the raw kit material – two strips about 8 inches long by 1 ½” tall.
 

 
The first task is to cut this into strips about ¾” wide.
 

 
Now the fun part….
 
To achieve an aged and rusted look, the aluminium is treated with Ferric Chloride PCB etchant solution. Yes, nasty stuff, but quite safe if proper precautions are taken – and the instruction manual is quite emphatic about this!
 
The method is to dunk a piece of aluminium into the Ferric Chloride solution with a pair of long tweezers. The instructions say that after a few seconds the piece will start to bubble. I found that it took a good couple of minutes for any reaction to start, but once it started it was very quick! Once it does start to bubble, it is removed from the solution and dunked in clean water to stop the chemical reaction. The longer it is left to bubble, the more of the aluminium gets eaten away. I experimented a little bit to produce some with heavily frayed edges. I will use these judiciously to represent some more rusted/worn panels.
 
Here are the pieces after the “mad chemist” treatment.
 

 
These will eventually have rust coloured chalk applied before being installed, but for now they are put aside.
 
The next task will be creating the Saw Table – a mini-project in itself….