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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Warning!!! Metalworking content
As promised last year, this winters project was the boiler.
Built it up out of some scrap copper pipe and some falloff 18g copper sheet I had laying around. All silver and brass brazed joints. I pressure tested it to 75psi. It puckered the inner fire box a little but nothing scary. I designed the relief valve to blowoff at a max of 30psi. I mounted it to the engine and tested it with steam for the first time on Sunday. I got the engine to chug around a few times, but mostly I found where the leaks in the pipe joints and packings were. Yesterday, I tightened up everything and lapped the valve and tried again. Had a couple of false starts and then chugged to life pretty as you please. Photos are in the dropbox pksteam21.txt pksteam8.JPG pksteam7.JPG pksteam6.jpg I still have to round up some real steam oil and build a displacement oiler. But that is for another day. Paul K. Dickman "Paul K. Dickman" wrote in message news:... Having spent my entire adult life applying my metalworking skills to the jewelery and decorative arts trades, Christmas has long ceased to be a time of good cheer. Instead it has turned into an unending frenzy of other peoples problems. To wind down from this time, it has been my custom to use the comparative lull of the twelve days of Christmas to work on something for my own amusement. The last few years it has been a model steam engine. I have had one on my Christmas list since I was eight years old but never got one. I realized that I had amassed all the tools and skills I needed to make one, so I made that my holiday project. Three years ago I cut all the patterns and cast them. The next year I fabricated the crank and machined the bearings and crosshead guides from some scrap bronze I had. This year I built the base from some half inch angle iron and finally got around to fitting everything together. This morning it was, after three years, in a condition to be tested. I am very pleased. With no more adjustment to the eccentric than the eyeball method, I oiled it up and hooked it to my compressor. It popped to life easy as you please, self started at around 12 psi and chugged along at one stroke a second at 15 psi. By 20 it was running about 180 rpm and it continue to wind to about 45 psi where it was running so fast it was going to walk off the bench. As I said before, I am very pleased. Next year I'll start on the boiler. Paul K. Dickman |
#2
Posted to rec.crafts.metalworking
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Warning!!! Metalworking content
Paul K. Dickman wrote:
As promised last year, this winters project was the boiler. Built it up out of some scrap copper pipe and some falloff 18g copper sheet I had laying around. (...) As I said before, I am very pleased. As well you should be! The flywheel casting with your name in it is quite tasteful and sophisticated. Very nice! http://www.metalworking.com/dropbox/pksteam0.txt http://www.metalworking.com/dropbox/pksteam1.JPG http://www.metalworking.com/dropbox/pksteam2.JPG http://www.metalworking.com/dropbox/pksteam3.JPG http://www.metalworking.com/dropbox/pksteam4.JPG http://www.metalworking.com/dropbox/pksteam5.JPG http://www.metalworking.com/dropbox/pksteam21.txt http://www.metalworking.com/dropbox/pksteam6.JPG http://www.metalworking.com/dropbox/pksteam7.JPG http://www.metalworking.com/dropbox/pksteam8.JPG --Winston |
#3
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Warning!!! Metalworking content
On Fri, 24 Feb 2012 14:05:44 -0800, Winston
wrote: Paul K. Dickman wrote: As promised last year, this winters project was the boiler. Built it up out of some scrap copper pipe and some falloff 18g copper sheet I had laying around. (...) As I said before, I am very pleased. As well you should be! The flywheel casting with your name in it is quite tasteful and sophisticated. Very nice! http://www.metalworking.com/dropbox/pksteam0.txt http://www.metalworking.com/dropbox/pksteam1.JPG http://www.metalworking.com/dropbox/pksteam2.JPG http://www.metalworking.com/dropbox/pksteam3.JPG http://www.metalworking.com/dropbox/pksteam4.JPG http://www.metalworking.com/dropbox/pksteam5.JPG http://www.metalworking.com/dropbox/pksteam21.txt http://www.metalworking.com/dropbox/pksteam6.JPG http://www.metalworking.com/dropbox/pksteam7.JPG http://www.metalworking.com/dropbox/pksteam8.JPG --Winston That "PK Dickman Chicago New York" is bound to confound some future steam collector. g A friend of mine had "Antrim Construction - New York - London - Tokyo - Nahant" dabbed with white house paint on the back of his '48 Dodge pickup. Nahant was the town we grew up in, at a bit over 1 sq mile the smallest in MA by area. -- Ned Simmons |
#4
Posted to rec.crafts.metalworking
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Warning!!! Metalworking content
Ned Simmons wrote:
(...) That "PK Dickman Chicago New York" is bound to confound some future steam collector.g A friend of mine had "Antrim Construction - New York - London - Tokyo - Nahant" dabbed with white house paint on the back of his '48 Dodge pickup. Nahant was the town we grew up in, at a bit over 1 sq mile the smallest in MA by area. Heh! At Xerox, we used to joke about the diminishing quality and quantity of vendors for products from a specific division. Sign on side of shed: "Toner! Paper! Fresh Bait!" --Winston |
#5
Posted to rec.crafts.metalworking
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Warning!!! Metalworking content
Ned Simmons wrote:
On Fri, 24 Feb 2012 14:05:44 -0800, Winston wrote: Paul K. Dickman wrote: As promised last year, this winters project was the boiler. Built it up out of some scrap copper pipe and some falloff 18g copper sheet I had laying around. (...) As I said before, I am very pleased. As well you should be! The flywheel casting with your name in it is quite tasteful and sophisticated. Very nice! http://www.metalworking.com/dropbox/pksteam0.txt http://www.metalworking.com/dropbox/pksteam1.JPG http://www.metalworking.com/dropbox/pksteam2.JPG http://www.metalworking.com/dropbox/pksteam3.JPG http://www.metalworking.com/dropbox/pksteam4.JPG http://www.metalworking.com/dropbox/pksteam5.JPG http://www.metalworking.com/dropbox/pksteam21.txt http://www.metalworking.com/dropbox/pksteam6.JPG http://www.metalworking.com/dropbox/pksteam7.JPG http://www.metalworking.com/dropbox/pksteam8.JPG --Winston That "PK Dickman Chicago New York" is bound to confound some future steam collector. g A friend of mine had "Antrim Construction - New York - London - Tokyo - Nahant" dabbed with white house paint on the back of his '48 Dodge pickup. Nahant was the town we grew up in, at a bit over 1 sq mile the smallest in MA by area. I used to buy clothes at Bazillions in West Hartford Conneticut, sadly gone now I understand from looking them up on the internet. I used to have the tee shirt "Bazillions London, Paris, West Hartford", most saw the joke, some didn't. |
#6
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Warning!!! Metalworking content
On Sat, 25 Feb 2012 00:59:31 +0000, David Billington wrote:
Ned Simmons wrote: On Fri, 24 Feb 2012 14:05:44 -0800, Winston wrote: Paul K. Dickman wrote: As promised last year, this winters project was the boiler. Built it up out of some scrap copper pipe and some falloff 18g copper sheet I had laying around. (...) As I said before, I am very pleased. As well you should be! The flywheel casting with your name in it is quite tasteful and sophisticated. Very nice! http://www.metalworking.com/dropbox/pksteam0.txt http://www.metalworking.com/dropbox/pksteam1.JPG http://www.metalworking.com/dropbox/pksteam2.JPG http://www.metalworking.com/dropbox/pksteam3.JPG http://www.metalworking.com/dropbox/pksteam4.JPG http://www.metalworking.com/dropbox/pksteam5.JPG http://www.metalworking.com/dropbox/pksteam21.txt http://www.metalworking.com/dropbox/pksteam6.JPG http://www.metalworking.com/dropbox/pksteam7.JPG http://www.metalworking.com/dropbox/pksteam8.JPG --Winston That "PK Dickman Chicago New York" is bound to confound some future steam collector. g A friend of mine had "Antrim Construction - New York - London - Tokyo - Nahant" dabbed with white house paint on the back of his '48 Dodge pickup. Nahant was the town we grew up in, at a bit over 1 sq mile the smallest in MA by area. I used to buy clothes at Bazillions in West Hartford Conneticut, sadly gone now I understand from looking them up on the internet. I used to have the tee shirt "Bazillions London, Paris, West Hartford", most saw the joke, some didn't. There are bumper stickers driving around in my area: Paris, London, New York, Estacada You have to know Estacada, OR, to get the joke. -- My liberal friends think I'm a conservative kook. My conservative friends think I'm a liberal kook. Why am I not happy that they have found common ground? Tim Wescott, Communications, Control, Circuits & Software http://www.wescottdesign.com |
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