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๐ฌ Build
5 years ago by ๐ฌ๐ง mturpin013 ( Admiral)
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Thanks for the pics Joe and explanation about the tin, I'm going to have a go at this, I have all the bits now except the wick, Ill report back when I've made some progress.
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Joe727
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
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BTW: I grew up with valves (or bottles as we Brits also call 'em) as well.
I still have a box of several vintage 'bottles' in the cellar, many of them new still in the original boxes. if you ever run out of triodes, pentodes or tetrodes give me a buzz! Think I still have some pristine EL80s - collectors items these days - lots of Oomph ๐ My next non-model boat electronic project is a pair of digital clocks in 'Art Deco' cases, using bottle decade counters. The forerunners of the fluorescent tubes and then the LED clocks, but much more fun๐. About forty years ago I spent a year or so servicing and calibrating the radiation monitors around UK nuke power plants using these decade counters. One cosmic radiation click = one jump in the base counter and so on. Never ever saw anything above the basic cosmic radiation background count which is always there. A remnant of the 'Big Bang'. ๐ฒ Funny where an interest in electronics and radio can getcha ๐ Look forward to your chimney experiment report๐ My destroyer has two funnels but I found that the little railway smokers were not man enough to feed two funnels via a branched tube. But two working in parallel off the one RC channel did the trick. Regarding the chimney effect; Works well at rest or at low speeds, but I also found that instead of a fan some traditional air vent scoops mounted forward of the smoker augmented the effect well at higher speeds. And my long thin destroyer with 2 x 540s on 12V made a lot of 'speed boats' look silly ๐ Have fun, ciao, Doug ๐ ▲
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Joe727
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Remove Ads ๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
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Hi Joe ๐
In the full size ships I worked on we used Co2 injectors to smother fires in our equipment racks! Guess you could try the Co2 capsules for soda siphons. I have a box of those I 'm considering using for torpedo power! Carry on innovating Man๐ Cheers, Doug ๐ ▲
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Joe727
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Doug, That's a very impressive list of ships!
I was just thinking yesterday about how to build a smoker without a fan, your chimney effect caught my attention. My experimental builds so far push the smoke out quickly, I would prefer it puffing out. Deleting the fan and adding the proper length of stack could work, I will try. Your electronics are impressive, nice skills you have. I'm still working with vacuum tubes, valves. Regards, Joe ▲
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Doug, Yes, thanks for clarifying the Vision, sound good. I think I will add a monoammonium phosphate fire extinguisher system to mine so I can just keep on sailing.
Regards, Joe ▲
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
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Hi Joe,
"If an alarm was used, you still need to get it back to shore before it .........." That's why I suggested a circuit to cut off the power to the heating coil. An alarm is only useful if you are 'hanging around on the spot' to do something about it! ๐ฒ Do you have 'the Vision' now? ๐ PS That's also why I made the decoder to make mine RC. ▲
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Joe727
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
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Hi Joe,
When you click on the Media File icon have you ever noticed the [Download] button in the top left corner of the media window!!?? ๐ฒ Click on that and you are given the choice to Open or Download the file ๐ BTW: to answer your question above - No scale railway at all! I intend to use the loco smokers in RC conversions of 1/350 scale plastic navy ships, such as; HMSs Ark Royal, Colossus, King George Fifth, Prince of Wales, Exeter, and KMSs Bismarck and Graf Zeppelin. As well as RMS Titanic and my 1/128 HMS Belfast and Graf Spee. Two more perhaps for my Southampton tug. Have used them in the dim and distant past for my 1/72 scale RN destroyer. Built a little RC pulse decoder using CMOS chips followed by a transistor driver to switch a relay supplying the smoker coil. See pics of self etched decoder board. The other three outputs are for various lighting effects and destroyer 'Whoop whoop' siren. 30 years old now and still going ๐ The smokers work pretty well just using the capillary action of the thin glass feeder tubes. So no wick to come into contact with a a hot wire coil ๐ They were mounted on a bridge across the cap of a large spray can which I used as the oil tank. Exhaust used the chimney effect of a 10mm alu tube running up the funnel. I'm also still pondering how to turn the usual white steam/smoke black! Cheers, Doug ๐ ▲
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Joe727
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Did the video work for you guys? I still can't see it.... Joe
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Michael,
Anything can be done but I strive to keep things simple. Like a dipstick for level and fuses to protect the electronics from getting out of control. I generally end up with double fuse protection as well. Best to just get in the habit of keeping an eye on things. The fluid drain is very slow so I don't foresee a real issue with that. If an alarm was used, you still need to get it back to shore before it .......... Cheers, Joe ▲
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฉ๐ช RNinMunich ( Fleet Admiral)
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Yep Michael,
A thermocouple, a capacitive level sensor, an OR Gate, and a transistor driver for a cut-off relay. Calibration and setting the threshold limits are the tricky bits ๐ค ๐ ▲
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TOWN3810
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐ฌ๐ง mturpin013 ( Admiral)
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Great result , well done that man, is there any way of putting an electronic safety device to protects against overheating/lack of fluid etc.
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Joe727
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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One more thing, I did not try just straight Baby Oil, will try that later... Joe
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Remove Ads ๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Thanks, did the video PLAY? it's not showing up on my end.
For smoke fluid, I used some Baby Oil (mineral oil), and some glycerin. Using an eyedropper I used about 5 eyedropper of baby oil and 1 of glycerin. 5 to 1. The Glycerin was purchase from a store that sells cake decorating, it's used in icing, in the states, Michaels, Hobby Lobby, Walmart, etc. I would think that pharmacies would have as well. The baby oil is Johnson's. Thanks for the comments, Joe ▲
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jugge
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๐ฌ Holy SMOKE !! Video, Tin Can Madness
5 years ago by ๐บ๐ธ figtree7nts ( Admiral)
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Great success Joe, What are you using for fuel?
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Joe727
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๐ฌ Fan Surround
5 years ago by ๐บ๐ธ Joe727 ( Commander)
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Michael,
Thank you for your interest and the questions, I appreciate it. 1. With regard to the rubber stopper, good question. I have not done a lengthy test as yet, but will do. My thinking was that it would not effect the rubber as heat generated seems to be concentrated on the oil. I like the idea of a a metal cap, you have given me an idea, I have some small plumbing pieces that may work. it would be good to eliminate all flammable materials! 2. Varying the smoker with the engine speed has not been one of my goals, here is my thinking. I plan to use this unit on a steam tug, steam boilers seem to put out a constant smoke as the burning does not vary on a steam engine, the steam is just regulated. Hence, I have not done this, many commercial units offer this. I recently purchased a commercial unit for over $100 USD and was not happy with the output, that is why I started this build. From my video you can see how the smoke shoots out. I wanted to slow it down so it just puffs. I have experimented with lowering the fan voltage, but it cuts out below 3 volts. The attached sketch shows my experimenting with allowing some of the air from the fan to npbe redirected out. The tin that I soldered up is shown, took a lot of effort, did not work as planned. I did like the fact that it looked like a whiskey still. 3. Yes, there are smaller fans available on line. I was just using some salvage ones I had - 28mm square. I may experiment with some small fans if budget allows. I am now retired and counting pennies... More on the puffing aspect to come... Joe ▲
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๐ฌ Fan Surround
5 years ago by ๐ฌ๐ง mturpin013 ( Admiral)
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Joe I admire your persistence with this and it seems to have paid off. Each of your attempts has improved well done.
I have a question - 1 - is there a chance that the rubber stopper being so close to the heating element could be damaged or melt the rubber? Have you considered a metal screw top, you can sometimes get a metal can with a screw cap, glue tins come to mind you could cut the end off and use the screw cap and just solder the end up. 2 - have you considered adjustable fan speed /element voltage to vary the amount of smoke according to engine speed. 3 - finally what about a smaller version, can you get smaller fans? just a thought, keep up the good work Michael ▲
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Joe727
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๐ฌ Test
5 years ago by ๐ฌ๐ง jacko ( Lieutenant Commander)
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Joe727
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