Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines
The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: Jim on December 16, 2024, 12:39:37 am
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I love it Jim!
I am really looking forward to seeing it running.
Such a cool project. :) :) :)
Thanks Charlie.
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I love it Jim!
I am really looking forward to seeing it running.
Such a cool project. :) :) :)
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Clean and polish it to the level that you like and then rinse it in acetone and spray a coat of clear lacquer over it and it will greatly reduce the tarnishing!!!
I am tempted as I'm a big proponent of clear coat, both normal and high temp. Though when it eventually breaks down you've got a big job on your hands using paint stripper to get it off.
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Where so little heat is involved, silver brazing may not have truly been needed, though the added strength may have been what you were after.
In any event that "cascade" should prove a wonderful visual delight and definitely makes for a stunning static piece as well!
Super job on that one Jim, your artistic/engineering talents know no bounds!!!
There was no way that soft soldering was going to hold this together with any strength on the minimal contact parts that are touching, then I needed to soft solder the spouts in and then everything would have let go. You couldn't break it apart now if you tried.
Silver brazing is easy with a good torch and a good hearth, stacking those pieces upside down to get it setup just right sure wasn't easy.
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Clean and polish it to the level that you like and then rinse it in acetone and spray a coat of clear lacquer over it and it will greatly reduce the tarnishing!!!
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Where so little heat is involved, silver brazing may not have truly been needed, though the added strength may have been what you were after.
In any event that "cascade" should prove a wonderful visual delight and definitely makes for a stunning static piece as well!
Super job on that one Jim, your artistic/engineering talents know no bounds!!!
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Did a bit more today, that was a real bear silver brazing that all together. Need to bend and install the water pipe and bring it over to the first cup.
Had some quick test runs and it all worked as expected (thankfully!) shame its all going to end up tarnishing.....but patina is ok :)
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I have one of these and had every intention of using it on a boiler, got the same msg from Jin about pressure. I spent about 30 minutes with it and from my experience with pumps on live steam locomotives and 1/4 scale traction engines I think (ie my opinion) the issue is with the check valves not seating well at all. Basically that little pump should be able to pump at pressures to 40 lb. I was going to replace all the balls and seats. I had not tested the cylinder and piston but they looked tight. Mine is on a shelf for now as several other projects are underway and will be finished before I futz around with the pump. I need a real project for it.
Bob
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Every time I make something that I think looks pretty good, I see some of Jim,s work and then think to myself, well crap !
You're not alone in that!!!
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Every time I make something that I think looks pretty good, I see some of Jim,s work and then think to myself, well crap !
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Awesome work Jim!
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Jim, that is a magnificent presentation!
Bruce, you might try making the largest reasonable diameter drive belt pulley and replace the one that is there with at least 2X diameter of the original. This would give your belt drive a lot more leverage.
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Thanks fella's.
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Bonjour,
Also on Jin's official site : https://www.okmomodel.com/
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All right. Ignorant newbie question(s). Where do you get all that flashy brass and who is Jin? How do I find his offerings?
Thanks
Evilbay is where you find Jin, unless you want to go to China and look him up directly. He actually has a few different outlets, or "monikers" under which he sells his products.
Here is one of his older and more personal "channels":
https://www.ebay.com/str/jinsteamengines
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All right. Ignorant newbie question(s). Where do you get all that flashy brass and who is Jin? How do I find his offerings?
Thanks
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Bonjour,
Jim, beautiful setting indeed. I have also bought one thinking I could use it as boiler feed pump but Jin advised me it would not be able to manage a 20 - 40 PSI pressure so it is currently sleeping on a shelf :(
That is disappointing to hear Raphael, as that is exactly the application that I was hoping to use my P71 for!
I wonder if they could be rebuilt with better seals, to achieve a 40+ psi standard?
Oh yeah, and that is one Eye Popingly beautiful build you've done there Jim!!!
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Bonjour,
Jim, beautiful setting indeed. I have also bought one thinking I could use it as boiler feed pump but Jin advised me it would not be able to manage a 20 - 40 PSI pressure so it is currently sleeping on a shelf :(
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Dang, that's a handsome setup Jim. being a pump, it might have enough pressure to have a showerhead like pressure, only one way to find out, I guess. I have 2 of these units & have yet to do anything with them. I look forward to seeing it in action.
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I have a lot of hours in this P71 pump from Jin, enjoyed every minute of making all the metal parts and woodworking.
Only thing I haven't done yet is bend and cut the return that will flow the water into the 4" copper water trough as I'm still pondering a few ideas.
I did toy with the idea of making a 'shower rose' but think because it won't be pressurized it would still just dribble out in one stream.
Anyone got any clever ideas before I cut and bend that brass pipe?
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