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Garry J

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Garry J last won the day on April 5 2020

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About Garry J

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    Expat Cockroach
  • Birthday 07/08/1953

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  1. I have a box of AFX track in original packaging, I can dig it out and see what's there if you're interested.
  2. The Slotworks controller was rubbish. Wiper arm on circuit board with all the power running through it, they burnt out the board very quickly. Probably what sent them out of business.
  3. You should be able to use the resin as the glue.
  4. Garry J

    Srp motors

  5. The file can be resized in all three dimensions when printing so the initial size doesn't matter. This file is offered in different thicknesses for varied sizes but even that isn't necessary if using a resin printer.
  6. https://3dprintable.shop/product/peugeot-905-evo-1993-3d-model-stl/
  7. Our Dazza could ride, but he wasn't the sharpest tool in the shed. I recall a race he and Darrell Eastlake were commentating on, and Barry was making the point that the rider in second place was better on the brakes because he was closing on the first-place rider under braking at every corner. Darrell tried to explain to him that it was because the guy in front braked first but Barry wouldn't have it. He couldn't grasp the concept of separation by time, not distance. RIP Bazza and Dazza
  8. Yes, you are right Phil. I had it backwards, never having done it myself.
  9. I've never done it myself, but I guess if it puts out more voltage it's more efficient. The idea is to set up a jig with a fixed motor to drive the test motors with a bit of tube between the shafts. Apply a fixed voltage to the drive motor and see what you get at the other end. My usual way to test motors is to run them on a few volts and choose the one with the least vibration. A combination of the two might work.
  10. Forget the shunt field, we have permanent magnets. When you disconnect the power from a running motor it will continue to spin according to its momentum plus the momentum off whatever it was driving. At this point the motor becomes a generator because it's being driven, not driving. BUT THE TORQUE IS REVERSED WHEN THE MOTOR IS GENERATING, so if you connect it back on itself it is effectively attempting to drive itself in the opposite direction to whichever way it was running under power. Once the motor slows the generated voltage reduces until it eventually stops. Adding a resistance to the circuit simply reduces the voltage the motor is feeding back on itself, and therefore reduces the braking effect. To see your motor act as a generator, a common motor test is to free wheel a test motor using another motor to drive it and measure the test motor's output voltage. Good for relative comparisons only.
  11. 'Steam Punk' sculptures sell for big money. The comms tower is brilliant.
  12. Nice lane marking job. Maybe a few too many ales involved.
  13. Thanks Shaynus, need to find enough pics to model it.
  14. Here are links to the instructions for chassis and body builds. http://slotworx.com.au/Body_Pics.zip http://slotworx.com.au/132_Pics.zip I do have some parts for these cars if any one is interested. Cheers, Garry
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