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Scale Buildings, Warehouses and Structures. If you have buildings and other structures that you have built to use with your Rc's here is your place to share them.


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  #1  
Old 01-09-2017, 08:59 PM
frizzen frizzen is offline
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Default Wanco vertical mast arrow board

A while back I noticed one thing that i see *everywhere* around construction equipment, but i don't see it anywhere in 1/14 stuff online...

I need an arrow board!
http://www.wanco.com/products/detail...148&type_id=10

Little math and caliper time later, i broke out the solder station.
http://www.555-timer-circuits.com/flashing-led.html



15 yellow 3mm LEDs, a 555 timer chip, 2 resistors, a capacitor, an on/off switch, and 3 position switch. I can turn my board on and off, or set it to point either direction, or as a center line for slow moving hazard.

I have it set as mono flash instead of sequential since that's all i ever see around here, and the circuit is much easier to build. Right now i'm sitting around 4 sec on 4 off, i need to play around with component values to get the flash rate up to 1/2 - 1 hz.

Then i'll need to get brass stock and build the trailer!

Last edited by frizzen; 07-22-2017 at 06:25 AM.
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  #2  
Old 01-20-2017, 08:09 AM
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Default Re: Wanco vertical mast arrow board

Hi

That looks great cannot wait to see it completed.

Thanks for sharing
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Old 01-21-2017, 12:04 AM
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Default Re: Wanco vertical mast arrow board

looks good !! following along so post lots of pics
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Old 01-26-2017, 06:03 AM
frizzen frizzen is offline
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Default Re: Wanco vertical mast arrow board

I missed that theres some interest and you're following so let's go build one instead of just a couple random updates.

LET'S GO SCREW UP SOME TRAFFIC!!!

The arrow board is 4x8 foot, at 1/14 scale is 3.4" by 6.8". I used 0.040" styrene.

The center row has 7 leds, so mark horizontal center full length and find vertical center. Mark that, then go 1" out on each side for next 3 leds on each side.
Grab a square, make a line square inline with 2nd led from each outer side.
Mark 1" from center up and down on that line.
Split the distance between what you just marked and the outer led.
Drill for leds, poke them in holes.

If you want all the lights to go on/off together:
Wire the 3 center and both outside leds together.
Wire the 4 leds on 'arms' of the arrow, and the opposite side 2nd from outside leds together
Do it again.

Now you can build the timer circuit and hook up the switches.
Power and ground out of the 555 go to center line(throw a resistor on power leg).
Tie both grounds on the directions into center circuit.
Tie power off the center circuit to the center of a 3 pos switch, each outer side of switch goes to power side of a direction circuit.


I think the real one uses 2" box tubing, but thats 0.142". BUT 1/8 brass stock at 0.125" is scaled to 1.75" box tubing. Close enough for me. I just didn't buy enough to be a meaningful update yet
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Old 01-26-2017, 07:37 AM
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Default Re: Wanco vertical mast arrow board

this is neat great idea
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Old 02-09-2017, 11:19 PM
frizzen frizzen is offline
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Default Re: Wanco vertical mast arrow board

I'm using a 555 timer chip in mine. Due to the chip being used to teach electronic theory, there's not a lot of help in figuring timing other than "well here's the formula."

http://houseofjeff.com/555-timer-osc...cy-calculator/

Plug in how you want it to flash, and it suggest components that will get you there.
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Old 02-25-2017, 03:10 AM
Nikaem Nikaem is offline
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Default Re: Wanco vertical mast arrow board

I have 5 of these on trailers made by fisher price go them for about a dollar each at the thrift store
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Old 02-25-2017, 11:36 PM
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Default Re: Wanco vertical mast arrow board

Post up a pic!
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Old 10-19-2017, 12:52 AM
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Default Re: Wanco vertical mast arrow board

Frizzen, do you have pics of the wiring on this thing. I'm fairly challenged with electronics when reading about them ONLY, but with reading, & some pics to show what's going on, I understand better what to do, &/or NOT to do.
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Old 10-20-2017, 04:55 AM
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Default Re: Wanco vertical mast arrow board

I don't want to post this, the interconnect wiring in really ugly. It's temp install to prove it works, once a base is built it'll be redone.



It's wired up in 3 buses. A center bus, and each arrow.

The 555 is wired dead-bug, it powers the center bus. The top left switch is a takes the power side of the center bus, and outputs to power side of whichever arrow bus. Grounds between bus are all tied together.
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Old 10-20-2017, 09:48 AM
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Default Re: Wanco vertical mast arrow board

As I suspected, It's a COMPLICATED circuit. Even with pics I'd be hard pressed to re-create that. I LOVE the idea you have, & the fact that it functions is cool too.
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Old 10-20-2017, 04:26 PM
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Default Re: Wanco vertical mast arrow board

It's not that bad, just go 1 connection at a time. It would look less complicated if i'd spent a bit longer doing hookups. Or color coded things better.

Make the board, put all the leds of a bus in facing same way so you can connect anode to anode, cathode to cathode. This way you really only have to insulate where it has anything crossing a bus.

All the buses are made in parallel. The arrow arms probably don't need the line to 2nd led opposite if you want to get lazy and save a few connections, but the real ones drop out the 2nd column center row light on the arrow side, this was easiest way i could think of.

Power comes off a 9v battery into the 555, the chip can be a little confusing, then chip output hits the center bus with ground, and power has a drop resistor. If you prefer solid, don't even worry about blinky circuit.

If you have a broken toy or old packaging from something that had an LED blinky light, you can save even more work by reusing the circuit.

I liked the 15 light board, it's most of what's here, and it's electrically easy to get the 3 patterns i usually see.. Unless you're feeling like a badass don't do the 25 led board that can do 12 patterns

This project started because a friend of mine ordered a bunch of components off ebay, gave me some, and i was trying to figure out how to use them. Got stuck in construction traffic...
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Old 11-05-2017, 03:52 AM
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Default Re: Wanco vertical mast arrow board



I hate construction zones!

There isn't even anybody working on it! It's like they just put up a sign to screw with people.
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Old 11-05-2017, 03:23 PM
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Default Re: Wanco vertical mast arrow board

LOL! They're either not working, OR they've got 2 miles of road necked down from 4 lanes to one, just so they can work on 1 lane, for a thousand feet of it.
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