Recent content by Sprocket

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  1. Sprocket

    How to Scale Up An Engine

    Bob, The flywheel you linked to might cause you problems. The five curved spokes and the governor weights may ( I think probably will) interfere. 6" Flywheel 6-Spoke Straight Tapered Something like this should work, check dimensions, but at least the spokes allow the governor weights to go...
  2. Sprocket

    How to Scale Up An Engine

    I got 1”x 6” cast iron discs from Enco. Now I guess it’s MSC. Or look at Martin Models, lots of choices there. And six inches is big enough, or at least it was for me. Doug
  3. Sprocket

    How to Scale Up An Engine

    Good choice. I enjoyed building the Zero Six. While building it to the prints is a good idea, the author admits that the flywheels could have been bigger. In the write up, he says, " I show the flywheels I made, but would advise building a somewhat larger diameter" and " If I had to do it over I...
  4. Sprocket

    Precision Gauge Blocks

    "Measuring bores is the bane of my life!" I have to agree with that. I could seldom get the "T" gauges to agree two measurements in a row, and even when I thought I had it right, my OD part might not fit my ID part as well as I'd like, and I know the OD parts were correct. I got one of these...
  5. Sprocket

    Round Ram Bridgeport

    It actually came with the rails, angles, nuts and bolts, shims, pretty much everything for the x,y,z and only the mounting rail for the quill. I used the metric hardware for most of it, but got some 1/4-20 carriage head bolts where slotted parts fit together. Except for the quill, there were...
  6. Sprocket

    Water glass

    Maybe, American Model Engineering came across this while I was looking for something else. Doug
  7. Sprocket

    Round Ram Bridgeport

    If your Bridgeport has a back gear, it may run in reverse in back gear, at least mine does. The VFD allows me to reverse motor direction with a couple of button pushes. Doug
  8. Sprocket

    Round Ram Bridgeport

    Hopsteiner, I will take some pictures of the X,Y,Z mounting, but they were pretty easy. the only problem I found with those was there is a coolant door on the left side so I mounted both the Y and Z on the right. Lost a little travel because there is a huge old power crossfeed on the right end...
  9. Sprocket

    Round Ram Bridgeport

    Richard, That is my version of the Zero-Six from Model Engine Builder. There were a couple of things that either didn't look right to me or the author said he'd do differently. Mechanically, it is as designed, but I made it look like I thought it should. A few pictures follow. Hope I'm not...
  10. Sprocket

    Round Ram Bridgeport

    I got a 4 axis DRO from tpactools last summer. Installation of the x,y,z axes was pretty straight forward, but the K (quill) axis required making mount parts. I wasn't sure if I'd use the quill axis, but I find I use it a lot instead of the z. It's all glass scales, you have to calibrate after...
  11. Sprocket

    Round Ram Bridgeport

    I've been using a Variable Frequency Drive on my Bridgeport. Takes 120 v. single phase and gives 220 v. 3 phase. (You can also get 220 v. single phase in, 220 v. 3 phase out) It also gives variable speeds within the belt changes. It's a TECO Westinghouse and came from Wolf Automation. Easy to...
  12. Sprocket

    Werowance attempts Myfordboys traction engine

    Check the Harris website. I've been using Safety-Silv 56, which I think is their lowest melt point. The alloys with less silver actually melt at higher temps. I don't know about other manufacturers, this was available locally and I've stuck with it. Safety-Silv® 56 | The Harris Products Group Doug
  13. Sprocket

    How to Scale Up An Engine

    The flywheels are 6” by 1” more or less, the 1 1/8” bore sounds right, stroke is long, can’t remember exactly what it was. It was made to the plans, mechanically, Cosmetically, it’s my own. I’ll look tomorrow. Plans are out in the shop. Doug
  14. Sprocket

    How to Scale Up An Engine

    The picture to the left is my version of the "Zero-6". Mechanically, it is the same , but I didn't like the way his looked. He also said in the article that he would have used bigger fly wheels. So I did. The gears were purchased, The flywheels were "mill-whittled" from cast iron discs, the...
  15. Sprocket

    The Nash Gas Engine Electric Plant

    Perfect! Thank you, Doug
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