Cool... use them at the club...
Cool... use them at the club...
That sounds right... didn't Model Railroader cover this subject a few years ago?
Mark Mathu spake thus:
Yes; as I pointed out in another posting in this thread, _MR_ did an article on Thomas in April 1993. And no, they don't use different scales: it's all O scale (Märklin, custom-built).
Unfortunately just because something is printed in MR doesn't make it correct. You are correct in that the MR article states that they used Maerklin's O scale locos. The author made a mistake, they are actaully No. 1 scale as is fairly obvious in the pictures with the article and as Greg already stated Maerklin do not make O scale, a fact you could easily check on line.
Keith
Any posting I end with "Grrrrr" is tongue in cheek! :-)
I have three groups of operating models (ignoring display case "collectors" items)
- my main model railway, which I model to the best of my capabilities, and with which I strive for ever higher standards.
- British _HO_, which I model for appearance rather than accuracy.
- Garden railway in 1:22.5 / 1: 24 scale to a standard best described as "whimsical" and "minimum cost".
Regards, Greg.P.
It is definitely NOT O gauge Maerklin. Your source is WRONG!
There is a G Scale. You just said so: "LGB which started the "Gartenbahn" (G) uses 1:22.5 scale."
There is no G Gauge. 1:20.3 is not and never was called G Scale. 1:20.3 is pretty universally called 1:20.3, no letter designation. It's for modeling 3' gauge on 45mm track, which is 1 Gauge.
I imagine it's something like inviting visitors out to the shop to see your latest nicely machined project, and finding they're most impressed by all the nice curly chips under the lathe.
Those nice curly chips tell me a lot about how good a machinist you are...
How many home machinist use carbide tooling, my guess most modelers shops use HSS. Roger Aultman
Joe Ellis wrote:
Me, me! HSS is good for 95% of the jobs in a hobby application, but there is no sustitute for TiN, cobalt, or carbide tools for some jobs. Milling and drilling glass circuit board material for one. Tungsten carbide renders a better finish on copper too. Copper is a particular bitch to machine because it is so "sticky". Ditto some plastics and several aluminum alloys, 3003 for one.
Froggy,
Not sure that hobby machines have the power or rigidity to use carbide tooling for what they are good at. Perhaps the 1/4" tools with the piece of carbide attached are usefull for some special jobs. Roger Aultmanm
Roger,
I got some tooling using the small lozenge shaped tips a year or two ago to try them out and see how I got on. My lathe is a UK 3.25" swing (6.5" in US terms) with a 1/4 horse motor and it has no trouble working with the tools. I now tend to use them for almost everything and only drop back to HSS or carbon steel when that is the better option. The only problem with these small inserts is that they are prone to chipping with interrupted cuts, so machining irregular shapes is the time when the other tools come out.
Jim.
Roger
Depends on what you call a hobby machine. Mine is not used to make a living, so it is definitely a hobby machine. I mostly make small stuff ( less than 1/2"/12mm diameter ) on my
12" x 36", 2kW motor lathe and usually use HSS. Anything over 19mm diameter I use carbide. Current project is trying to make (good, small) brass uni joints - the first ones were u/s, improving with practice. Ultimate objective is a Shay in Sn3.5 Was making serious chips yesterday (for lathe size) for a 6" dia tractor implement part, they were blue, about 2mm thick and the lathe was protesting!Alan in beautiful Golden Bay, Western Oz, South 32.25.42, East 115.45.44 GMT+8 VK6 YAB ICQ 6581610 to reply, change oz to au in address
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