Workshop
A Model Shop Story
I read a story many years ago about a small team of Italian craftsmen. I think it started as a single person but the team grew with demand. They made exact working miniatures of exotic European sports racing cars like the Maserati birdcage. The models are the size of a child’s pedal car, so they were fairly large, but nowhere near actual size. Not designed for riding within. Somewhere around a quarter actual size I assume.
As I remember they were quite exquisite, all real metal construction, completely finished, not kits. Also very expensive, like back in the day when say $10,000 or more each was a lot of money, much more than it is today. A rich man’s toy car. The design/manufacturing team made a good profit on these vehicles as a sought after collector item. I believe they had operational scale or scale-like engines too.
What made me pay attention was they claimed they had many years’ worth of back orders to fill so the business of building these cars looked very successful.
I don’t know if there are people who will spend like that today. I have to assume there are, if the product and subject is good and unusual. For the very rich, they know something like this is not likely to lose value and is far easier to own than the full size version.
I have thought of this story many times as I wonder what I could make in my small metal shop that will have such lasting value. Not so much that I would make it a business, but just knowing what I am investing time in making the best I can, will have continuing value as a finished object.
It is the justification I tell myself when I put a lot… Continue reading
Hold on… What’s going on here? Oh my Goodness…
Something has snapped. I am actually thinking about dusting off the Penn A3 project. Wow! Is it a dream or am I retired? Oh yeah, I am retired now.
I have the Kozo Shay, Climax and Heisler live steam locomotive how-to project books on my shelf as well as the Pennsylvania A3 Switcher. Are they ALL possible now?
Ha! They are possible but probably not all probable. But I never say never.
I have decided to stop chasing the buck, even with my on-line e-store “Ramblin” Dan’s Store” (RDS). I want to spend my time making things in my shop. RDS will hang together for a while but I decided not to try and increase or even maintain the e-business. It has always been a very low profit and I ran it more for the experience of operating a business.
Any for profit “Business” I do will probably be with my silver work (Lost Wax Casting) as I really enjoy working with very hot liquid metal. Of course the skill can be used for making small brass locomotive castings.
I started the ¾” scale project because Kozo provides excellent guidance in his books and the size of the parts are reasonable. The drawback is where to go to run the locomotive. I think there are club tracks in the Houston, TX area, but nothing in the Dallas area that I know about.
That has made me consider Gauge1 which has many various scales involved with that track size. Generally, it is used with any scale between 1:13.7 (7/8N2 or M scale) to 1:32 (Number 1 Scale)
The 7/8N2 grabbed my attention because it is only slightly bigger than ¾ scale (6/8) but runs on a very common gauge track although this is 2-foot narrow gauge in prototype. Most… Continue reading
Micro Machining
- 10 degree 0.005 ball end mill (and #2 pencil)
- Ball End
I am using my Taig CNC micro mill making 3D carvings in wax for my jewelry work. The very sharp pointy thing is my go-to end mill bit for doing the fine and highly detailed work. The squares are 5 x5 MM. It is a TEB10-005 Tapered Ball End Mill 1/8 x 1-1/2 10° .005. Not cheap at $37.00 each. It does excellent carving with the Taig and the results show the Taig is up for running bits this small. There is actually a ball on the end.Follow the link to BitsBits.com where I get these tiny mill bits.
The other item is of course a common #2 pencil point just for comparison. I have a digital microscope I operate on my Linux box and it is great for inspecting the ends of these tools and taking pictures. I also find the scope useful for examining SMT components on today’s very small circuit boards.
Machine tools this small are rather fragile but wax is a wonderful medium for machining. Bits & Bits has a huge selection of these micro mill buts if you are in need of doing very tiny and precise milling.
4 Inch Machinist Vise
There is now another new tool in the THMS workshop. I received my four inch machinist vise from the Little Machine Shop and have it installed on my Sieg X3 Small Mill. I think it is a great addition to the manual mill and have posted a review in The Hobbyist Machine Shop. http://thehobbyistmachineshop.com/cms/workshop/4-inch-machinist-vise
Jump over there for a close look at this medium priced precision machinist vise.
Workshop Updates
I had to decide where to publish these new photos. It’s not really a new build or project so here we are in the blog. If you have been paying attention you may know I now have two (2) CNC Taig micro mills. The first mill is about ten years old. the new mill is less than a year old.
The original mill has mist cooling available and has a metal pan under the base. It is my primary metal milling machine but has machined far more than just metal. The new machine will be primarily used for dry milling. Mostly the carving of wax masters for lost wax casting. That does NOT rule out its use for anything else I want to machine.
This is the old warhorse. You name it, it has probably machined it. I put up a temporary chip barier on the left when the machine is active. You can see the mist/air nozzle mounted on the spindle. In the right hand corner is the set-up table I built and use for most of my projects.
This is a different angle showing the new $80.00 refurbished computer I just bought. It under the monitor. The price included everything but the monitor. The 48Volt CNC controller is homemade and contains the Smooth Stepper. This is an excellent combination.
This is my brand new Taig CNC mill. I just finished mounting it on this bench. The first mill started out here. The mill is set up for four axis milling. Of course set-ups can be changed at anytime. My intention is to use this mill and location for all my dry milling such as wax masters. With the new digital controller the Taig… Continue reading




