Silver Brazing
I was self taught in brazing and soldering metals long before I became certified By Harris Industries (Now called the Harris Products Group) about 35 years ago. Nothing has changed about the processes in all that time. It is a skill that can easily be developed and improves with use or practice. Most skilled hobbyist can quickly master the basic technique.
What is required is an understanding of the science and what is going on in the heating process. I have always needed to know the why of any process before I could truly master the how. Silver brazing is a process a machine can be set up to do perfectly every time on an assembly line; but not until all the variable factors are preset and under control. A human operator in a mixed environment must understand all the variables and observe and modify the process “on the fly” to make a perfect assembly.
I am not going to explain the process here in the blog. Just Google Silver Brazing and you will find all the how-to you will ever need. If you are close to Ohio you can still go to the Harris factory and take a two day course. My course was for making piping joints but the process is still the same for model train parts.
Correct heat and the correct tools for keeping that heat under control is critical. Also the prep work is the key to successful joints. Playing with the big flame seems intimidating but with practice it just becomes a comfortable step in the process.
Every trade from jewelry makers to pipe fitters has mastered the processes of brazing and soldering. For model builders it ought to just be another skill in a big bag of tricks. It is a fun… Continue reading
The Hobbyist’s Quandary
I have a decision I should make about building live steam locomotives. It’s not one I have to make but not making it is a decision in itself. In other words I am not at a stopping point where I have to make a decision to move on, but rather shall I continue where I am going or change direction. It is not a dilemma as none of the choices are truly unsatisfactory.
So I went back and read some of my own writings from around year 2003 that I posted in my The Hobbyist Machine Shop website. Hard to believe I started my publishing seven years ago. I see that most of my interests and goals have not changed in all that time.
Back then I said my plan was to design and build my workshop and machine tools to a size where I could work on live steam model locomotives in a scale size of ½ inch to ¾ inch. Mission accomplished. What has not been accomplished is actually completing any projects of that type. I do have some work done in ¾ inch scale on the Pennsy A3 Locomotive but the nearly three year layoff didn’t speed that project along.
What I noticed from seven years ago is that I said my primary interest was in ½ inch scale with ¾ inch my upper limit. I feel that is still true. So why did I start building in ¾ inch scale? There are several good reasons.
Number one is the outstanding publication of engine projects in that scale by Kozo Hiraoka. Second is the fact the parts are large enough that my PN is not much of a problem as it would be with very small parts. Third, the scale locomotives look wonderfully massive, complex and… Continue reading
“I’ll Buy That!”
I just had a minor epiphany thanks to a comment in an email from my friend Ed. He said, “…I focus on my project and not on the tools unless they impact the project.” What a profound statement. I have been preaching that concept since day one on my web sites.
I often get asked, “What machine should I buy to get started in the hobby.” My stock reply has always been, “First decide what you want to build.” “Second, how much can you spend?”
Ed is an outstanding builder of small scale live steam locomotives and has a wonderfully equipped home machine shop, all top notch machines and tools. His comment hit me so true I could hear the angles singing. Well, almost.
I have read most of Kozo’s books and have seen photos of his modest workshop. He shows his shop in at least the A3 book and several others. I know THAT master builder has a very modest workshop.
Wonderful works are not judged by the machines used to create them. It is the skill of the operator that makes it art, not the chisel and hammer. Are the workshop and tools of Michelangelo famous and on display? No, just what was produced by their use. It is the work that is remembered, not the tools in the shop.
Yes, yes, someday there may be a special on TV about the tools of Michelangelo because some people will be interested, but it is not the tools that have made him and his work immortal.
We all have to decide for ourselves, what is my hobby? Is it making miniature live steam locomotives or owning fabulous machine tools? Neither answer is wrong. Doing both is fine if there is the space and the money. But if my primary… Continue reading
The A3 Live Steam
I was taken away from the Pennsy A3 locomotive build for a number of reasons. 9/23/07 is the date of the last update. That’s almost three years ago. Time goes too fast.
No, I wasn’t doing a Rip Van Winkle. I got the HB2 CHC router completely built and operational. I put a DRO on the X3 mill. I made a lot of router projects. A lot of personal and family events occurred in these last three years as exciting as a first grandchild and as serious as a major cancer cure for wife Gloria.
The A3 is not an inexpensive build, either in cash or time. I only have a limited amount of both. I am still fully employed for 60 hours a week (Hooray!), so spare time is the most limited and cost is spread over time. The other projects did take away time resources from the A3. I already have most of the tender materials.
I admit I have spent time mentally exploring alternatives to the A3 build. That’s because a friend of mine, Ed Hume built a smaller size loco after he finished his A3. Mainly because #1 gauge tracks are much more available and ½ inch scale (more or less) is more popular. For my thinking the construction is smaller so there is less material cost and probably a bit faster build. Gauge #1 has a larger customer base if I want to sell what I make.
Ed did acquire a Tormach CNC mill for his shop. <oooh!> It may have shortened build time, but he could be just building more locos.
So I too have been tempted toward the ½ inch scale size. However, I have come to the realization that I will probably never build a high maintenance track layout in my… Continue reading
The First Tender Steps
Yep, see… I’m working on it. I picked a hot day. The shop thermometer hit 101. I worked in the breeze of a fan all day. It was still HOT! I did get the steps finished after exactly 35 months. Yeah, months.
Go to the THMShop site to see more pictures of the process. Find a link in the menu bar under Site Tools | What’s New .