Ras Ambrioso
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About Ras Ambrioso
- Birthday 11/03/1936
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GrandpaPhil reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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JacquesCousteau reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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For some time I have been experimenting on how to build the conical top of the stack. At first I tried using the bottom from a dixie cup after strengthening it with shellac ( See Post #37). The results were fair, as the cone was very fragile and I didn't find a good way of trimming the bottom. Today I decided to try my luck with brass. I used thin shim brass plate and developed the cone right on the drawing. Then I cut the plate with scissors, using the Admiral's eyelash curved scissor on the small circle and trimmed the edges with the Dremel. Bent the plate over a brass rod. And glued it together using CA. I thought about soldering it "a la Valeriy" but I wasn't to sure about the results. I promise that, when I finish this boat, I am going to practice both of my nemesis: soldering and air brush painting. And here it is my cone waiting for the glue to cure. Thanks for all the likes wows.
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Canute reacted to a post in a topic:
ZULU 1916 by Ras Ambrioso - 1/48 scale - stern paddlewheeler
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Continuing the work on the pumps. First was the fabrication of the suction manifold for the condensate pump. This was followed by the dry fitting of the condensate system. My soldering attempts. The finally dry fitted on site the suction piping to the condensate tank in the engine room. Need a little more work on the squareness of the pipe elbows. Then the Mason boiler feed pump followed. I have to say I love working the lathe. I am not as good as I used to be in my younger years but it is a pleasure to see the cuttings fall. This are some of the parts. Then the dry fit assembly And the final product. Thanks for following
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Ras Ambrioso reacted to a post in a topic:
Peerless by Cathead - 1:87 - 1893 sternwheel Missouri River steamboat
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Ras Ambrioso reacted to a post in a topic:
Peerless by Cathead - 1:87 - 1893 sternwheel Missouri River steamboat
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The boiler and water tanks. The vertical condensate return pump under construction. First the plans. The construction in process. And the finished product My 0.5 mm tolerances were challenged in this project. After this I will tackle the boiler feed pump which is a horizontal design. And finally the results of my experiments for boiler stack conical top. I used the bottom of a cone water drinking cup that was stiffened with several layers of lacker following Wefalk experience. Going to try again by developing the cone in thicker card a perhaps even brass plate. We will see what happens. Having fun, and thanking y'all for the likes and comments.
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Ras Ambrioso reacted to a post in a topic:
Peerless by Cathead - 1:87 - 1893 sternwheel Missouri River steamboat
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The Admiral is back and I am back to a slow move in the build. I have been working on the stack figuring out to provide a conical champher on the stack top. Right now I am trying Wefalks use of lacquered card. In the meantime I started the water tanks. Following in the results for the fresh water tank. Thanks a lot for the likes. You are my support and inspiration.
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A little more progress the boiler feed water tank dry fitted with accesories. Next, the stack. Thanks for watching
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Wefalk, I thought so too but, when I looked at the results on google some of these valves were discharging in the open. The drawings I have show a separate vent for the boiler itself. Also in my research the externally sprung valves had an extension in the connecting bar on the top of the springs. My guess is that it is a handle for manual release. Any way this arrangement was easier to make than some of the ones I saw in my research. Like the one below. This one is called a Ramsbottom safety valve. Used in the Württembergische T3 locomotive.
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Still working on the boiler. The current challenge is the boiler piping. Yesterday the steam supply manifold was completed. Today the challenge was the steam pressure relief valve. I researched it but couldn't agree with any of the options. So, I decided to reproduce the one shown in the plans. And this is the results: The valve on the left is for the steam vent that will routed by the stack. Thanks for following.
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A little more progress. Currently finishing the mechanical room aft. A few shots with the roof removed. It is amazing how much detail, that we for so long labored, gets lost once the model is put together. Again the black paint kills details in the boiler. And the first passenger is checking out his cabin.
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Being a little lazy lately. The Admiral has kept me busy elsewhere. But, I still had some time to test my micro soldering. Still not very happy with the results but at least I found a good technique to use. Following are the photos of my set up and the result on micro door handle. Also, some progress on the boiler. Hinges and latches come next. Wife gone on a safari in Borneo. That will give me a little more time to play. LOL
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I have been working on the valves with some success and finally fabricated an acceptable mini valve. Started with a much larger rod then ordered the right size (3/16") but had difficulty with the cutters in the lathe. Decided to fabricate the valves in a mass production cutting each valve in series so I would cut the body leaving the thickness of the flange and the cut another body etc. The result was a with a series of flange-body-flange-body-flange........... Unfortunately I didn't take a picture. When I finished the series I took it off the lathe and went to cut each valve apart. Guess what, the distance between bodies was only one flange thickness. I had forgotten to make the series as "flange-space flange-body- flange-space.....". So I started again and this time I did it correctly. I used tacks for the stem and handle and this how the unpainted valves look. Thanks for following.
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Wefalk, you never cease to amaze me with your micro work. Thanks for being such an example to us plebes.
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Thanks Glen and Keith for your comments. The lathe is a Unimat. It is an old model but works like a charm even though is not totally watchmakers accurate. It also converts into a mini milling machine. To the rest of the guys thanks for the likes🙂
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