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| outdoor electric trains NOT battery rf controlled |
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Posted by: boppa - 04-10-2010, 10:25 AM - Forum: Engineer's Technical Workshop
- Replies (22)
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have an interesting problem
have a online friend who is interested in running basically a `normal' dc train on an outdoors track
he hasn't found anyone who has had much success longterm without going to battery power/rf controlled loco's
he wants to stay with straight dc rail powered (ie store bought) esp as he is thinking a ho scale one that is both in and outdoors (ie a garden loop off from inside to outside)
it occured to me that the biggest problem is bad pickup (a quick google seems to support this) ie dirt and corrosion on the rails
so I took a leaf out of the dcc handbook and thought- what if I upped the voltage to the rails?
what I am thinking ATM is a track line voltage of about 60-90v (this is both safe enough that putting a finger on the track wont `bite' and high enough that light surface dirt/corrosion will not be a problem- I think....)
with a PWM controller that gives an `effective 0-12vdc' supply to the motor
question- if I design such a beast for him- does anyone `here' ie local to me in nth qld, australia- have an outdoor track already set up that could be used as a test bench- and any observations from anyone who has run an outdoor dc supplied setup would also be very appreciated as well from anywhere
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| Truck hits train bridge. |
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Posted by: e-paw - 04-09-2010, 07:21 PM - Forum: Upper Berth
- Replies (21)
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some one's insurance is about to go up,,,
<!-- m --><a class="postlink" href="http://www.break.com/usercontent/2009/3/Trucks-vs-Bridge-681545.html">http://www.break.com/usercontent/2009/3 ... 81545.html</a><!-- m -->
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| More about LED's |
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Posted by: torikoos - 04-06-2010, 02:52 PM - Forum: Engineer's Technical Workshop
- Replies (5)
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Here's a bit more about LED's in case you're confused or just interested. Browse the rest of their site if you have time, there are all sorts of interesting topics , tutorials and tips abundant.
<!-- m --><a class="postlink" href="http://www.merg.org.uk/led/index.htm">http://www.merg.org.uk/led/index.htm</a><!-- m -->
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| nickel silver sheet stock? |
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Posted by: nachoman - 04-05-2010, 11:28 AM - Forum: Engineer's Technical Workshop
- Replies (8)
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Does anyone know of a common source for nickel silver sheet or bar stock? I want to use some on some electronics projects, and was hoping to avoid having to order large quantities of the stuff. I had a similar question on where to get phosphor bronze, and someone on this forum pointed me to common weather stripping- a great suggestion. I was hoping for a similar good idea on what common items are made from nickel silver that I could find at the local hardware store. I was looking for dimensions about 1/4" wide and 1/16" thick. I want to use it for touch switches, and worry that regular brass would oxidize over time and become unreliable.
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