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Well, I started the Kozo A3. So far so good. I started this project after I got discouraged with a design of another locomotive I had been working on for months that over half the data was lost and the backup copy didn't function. Anyway I was dying to start machining some parts. I started 2...

Hello, I'm building a KOZO A3. I'm ordering metals from speedy metals and online metals. (Neither carry all I need to place one order). The plans call for phosphor bronze, only online metals have phosphor bronze, but they carry C510 and C544. Which one? Also I wanted to pick ground stock for...

Does anyone know where AND what cutting tools I could get for my 7x12 lathe. I need a good turning tool, parting, and cutoff tooling. I don't have a QC tool post, I don't really need one at the moment. I've had ok success with HSS that I've ground, but a while back I tried to turn some free...

Hello, I have a question regarding green sand. I ordered 30lbs of premixed sand off ebay. I wanted to do it myself but I couldn't source a fine enough sand or bentonite clay. Plus it was convenient and saved me time. I got the sand and they also included extra bentonite to "refresh" the sand...

This is my scratch design and build. I'm sure progress won't be very fast, but I'll update as often as I can. Side View - Working out Walchaerts valve gear. Top Down View - Getting the running gear and cylinder alignments setup. Pattern for wheels - Probably a practice pattern...

I've had difficulty looking for an exact answer for respiratory protection for what we do. It appears that typically a N95 Filter is sufficient for most metal fumes. 3M also suggest this. But it really depends on the concentration of what your trying to protect yourself from is the determining...

Hello, everyone one! My name is Justin or Fuelrush. I live in East Tennessee at the foot of the Great Smoky Mountains (which I love dearly). I work as a machinist and tool and die maintenance. I love working with metal and making things. As far as engines, I've started a build of a Jet Turbine...

Hello, I wanted to know what (if any) safety precautions everyone takes when casting brass. My main concern was to avoid inhalation of zinc oxide fumes from brass. I've read many safety post and sites regarding home metal casting and haven't seen any mention of anyone wearing a respirator for...