Making single models as copies of the full size loco requires thousand of patient man hours . If the model was designed to produce a good external look with parts out of view such as the frame boiler inner parts of the cylinders etc designed to be functional but man hours minimised which applies to most machines. I recently made a 3 1/2" gauge Schools class based on the plans for a gauge 1 version . The boiler is a simple smithies design with gas firing , the frame and rods were laser cut from sheet steel and finished by hand. The wheels were purchased as castings . I intended to fabricate the cylinders but found suitable castings . From start to finish took me about 9 months and the completed model looks the part and works well.
That's the thing with lathes, no matter how big it is you always need a bigger one! Will you do all the boring on the mill then? Or the cylinder on the lathe and the valve chest bore on the mill?
Ha! - Yes they never get properly clean, but they are great for keeping the bulk of the cast iron dust from getting airborne. The magnets help prevent having a fall of soot when I blow my nose! Cheers Craig.
G'day Craig another very interesting video the red between the frames is a very nice original touch. Did you find machining the gun metal difficult? Thanks for another building video instalment and the 1812 overture was much appreciated. Regards John
Hi John, The red between frames was apparently done so that when locos came in for maintenance, the fitters could clean them down and if there was any cracks in the frames, stretchers or horns it would be easily seen as a black line against the red background. The gun metal was really easy to machine although the swarf gets everywhere! Are you having problems with gunmetal? Cheers Craig
I have not had any problems with gun metal. It seems to like being cut at any reasonable speed. I once was given some 'gun metal' that was a swine to machine. When drilling it seemed to grab the drill and run very hot. Even with flood cooling it still was a real pain. I later found out it was some type of aluminium bronze. I wont make that mistake again! Cheers Craig
Excellent machining and components to very high standard good enough for aircraft engine parts.
Well done keep up the good work
Making single models as copies of the full size loco requires thousand of patient man hours .
If the model was designed to produce a good external look with parts out of view such as the frame boiler inner parts of the cylinders etc
designed to be functional but man hours minimised which applies to most machines.
I recently made a 3 1/2" gauge Schools class based on the plans for a gauge 1 version .
The boiler is a simple smithies design with gas firing , the frame and rods were laser cut from sheet steel and finished by hand.
The wheels were purchased as castings . I intended to fabricate the cylinders but found suitable castings .
From start to finish took me about 9 months and the completed model looks the part and works well.
Another well awaited production, i dont know what I'm look'in forward to more in the next video, the cylinders or the power feed on the mill
Cheers Andy, Power feed it is!
👍👍👍👍👍
Thank You!
That's the thing with lathes, no matter how big it is you always need a bigger one!
Will you do all the boring on the mill then? Or the cylinder on the lathe and the valve chest bore on the mill?
Story of my life! I'll bore everything on mill in one set up.
How in the heck do you get those magnets clean??? LOL
Ha! - Yes they never get properly clean, but they are great for keeping the bulk of the cast iron dust from getting airborne.
The magnets help prevent having a fall of soot when I blow my nose!
Cheers Craig.
G'day Craig another very interesting video the red between the frames is a very nice original touch. Did you find machining the gun metal difficult? Thanks for another building video instalment and the 1812 overture was much appreciated. Regards John
Hi John, The red between frames was apparently done so that when locos came in for maintenance, the fitters could clean them down and if there was any cracks in the frames, stretchers or horns it would be easily seen as a black line against the red background. The gun metal was really easy to machine although the swarf gets everywhere! Are you having problems with gunmetal?
Cheers Craig
Thanks for the reply just speeds for gun metal! Thanks John
I have not had any problems with gun metal. It seems to like being cut at any reasonable speed. I once was given some 'gun metal' that was a swine to machine. When drilling it seemed to grab the drill and run very hot. Even with flood cooling it still was a real pain. I later found out it was some type of aluminium bronze. I wont make that mistake again! Cheers Craig
It’s all picture slides. Not a video
Well spotted!