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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: SteamerJ on December 18, 2022, 09:29:43 am

Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: krypto31337 on December 18, 2022, 09:47:32 pm
I've built a few of the PMR unmachined casting kits and they never include the piping.  It wouldn't hurt to ask them, though.

Dean's still kicking, by the way, and is still active in the Coleman's collectors forum.
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: Jim on December 18, 2022, 04:35:43 pm
Quote
Hi Bruce,

That video is mine but I don’t have the engine anymore. I think I might want another one. I bought that one already assembled and don’t know what piping came with the kit.

And it's still very happy Downunder John :)
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: D E Jones on December 18, 2022, 02:36:21 pm
Thank you John. Here is a couple of other shots showing the whole thing.


Don Jones
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: SteamerJ on December 18, 2022, 02:06:47 pm
  I have one, and as with most all PMR stuff, it was perfect and went together nicely. By the time I built the #7 I had already built a # 2, 3 and 8, so I understood how PMR kits work. I found that you build up these engines in assemblies, making sure every thing fits and functions smoothly, then assemble the assemblies. Here are some pictures of mine showing the way I plumbed the steam and exhaust piping. As you can see, the steam and exhaust piping uses identical nipples and fittings. The only problem is , that with most PMR stuff, they ain't cheap ! The parts I used work for either the pressure or exhaust side. All are 3/16x 40 UST. 1-T, 1-Elbow, 3- 1/2 "nipples, 1-2" nipple, and 1-union.

That’s a nice plant you have there!
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: SteamerJ on December 18, 2022, 02:02:33 pm
here is what it is, there are so many I can't remember the numbers.
here is what PM research says about this particular model "The casting kit comes complete with 16 bronze and iron castings, all required hardware, gasket material, brass and steel bar stock, and working drawings."

this is NOT my video, but one I found for good use

https://youtu.be/7vkG30-pPdY

Hi Bruce,

That video is mine but I don’t have the engine anymore. I think I might want another one. I bought that one already assembled and don’t know what piping came with the kit.
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: D E Jones on December 18, 2022, 12:47:19 pm
   I have one, and as with most all PMR stuff, it was perfect and went together nicely. By the time I built the #7 I had already built a # 2, 3 and 8, so I understood how PMR kits work. I found that you build up these engines in assemblies, making sure every thing fits and functions smoothly, then assemble the assemblies. Here are some pictures of mine showing the way I plumbed the steam and exhaust piping. As you can see, the steam and exhaust piping uses identical nipples and fittings. The only problem is , that with most PMR stuff, they ain't cheap ! The parts I used work for either the pressure or exhaust side. All are 3/16x 40 UST. 1-T, 1-Elbow, 3- 1/2 "nipples, 1-2" nipple, and 1-union.
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: St Paul Steam on December 18, 2022, 12:13:15 pm
John & Wayne

You might want to give the following link a look. I goes back a mighty long time to an excellent tutorial by an excellent hobby machinist, who we haven't seen now in quite a long time. But back in the day Dean Williams was a regular contributor to the steam community, and his building of a PMR #7 from castings is a classic!  As I recall, he built it for another member of the group, many a year ago. Fortunately, his webpage is still up, so we can reference some of his wonderful material.

Here he is now:

http://www.deansphotographica.com/machining/jobs/pmr7/pmr7.html

A great tutorial Dean has made, I miss him very much, he was very kind & helpful to a "newbie" such as I was back then.
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: Stoker on December 18, 2022, 11:35:57 am
John & Wayne

You might want to give the following link a look. I goes back a mighty long time to an excellent tutorial by an excellent hobby machinist, who we haven't seen now in quite a long time. But back in the day Dean Williams was a regular contributor to the steam community, and his building of a PMR #7 from castings is a classic!  As I recall, he built it for another member of the group, many a year ago. Fortunately, his webpage is still up, so we can reference some of his wonderful material.

Here he is now:

http://www.deansphotographica.com/machining/jobs/pmr7/pmr7.html
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: komet163b on December 18, 2022, 11:22:16 am
Bruce....very nice speedy and smooth run.
I what order did you assemble the steampipes?

Wayne
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: St Paul Steam on December 18, 2022, 10:54:53 am
here is what it is, there are so many I can't remember the numbers.
here is what PM research says about this particular model "The casting kit comes complete with 16 bronze and iron castings, all required hardware, gasket material, brass and steel bar stock, and working drawings."

this is NOT my video, but one I found for good use

https://youtu.be/7vkG30-pPdY
Title: Re: Anyone put together a PM Research #7 from a machined kit?
Post by: komet163b on December 18, 2022, 10:51:18 am
  I received a #7 kit and, upon studying the plans, realize that putting it
together would be tricky where the steam pipes are concerned.  I think the order
in which you assemble it revolves around the pipes.  It seems there ought to
be a 'union' type fitting in there.  I'll probably buy one and whatever piping
I need.

Wayne
Title: Anyone put together a PM Research #7 from a machined kit?
Post by: SteamerJ on December 18, 2022, 09:29:43 am
I’m would like to know if the piping shown in the picture on the website are included in the kit. I’m assuming that they do but would like confirmation. I’m considering ordering one.