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Rex Hinson asked me to post the wiring diagram he uses for his E36. Note the type of connectors he uses. I am not familiar with this one but Rex highly endorses them. Not shown is how one would add a charging plug so the battery can be charged in the plane. The switch shown is a safety deivice to give a positive way to kill the motor. I will be offering the switch with my timer.
Note, it makes no difference at all whether you put the timer in the plus or minus leg of the circuit. Nor does it matter what color wire you use. Red and black are common with red being the plus and black the minus.
Good soldering techniques are important. Use a small 30 watt pencil type iron and only rosin core solder of a small diameter. Harbor Freight sells an iron for about $4 that works well and Radio Shack sells rosin solder in small quantities. A Monokote (or similar) heat gun works well to shrink the heat shrink tubing.
I will do one that shows how my timer and a charging plug can be hooked up. I am using JST type connectors right now. They are low cost, keyed for polarity and light weight.
I was given several boxes of “airplane stuff” by a neighbor who no longer flies rc planes. Some of it was really good , 2 excellent condition .049 TDs! Good engines.
I have been sorting through the stuff, and I found 3 packets of gold plated Deans connectors. They have 3 pins on each plug. Are these usable for the E36 motor setup? I would assume you could just cut off or remove the extra pin. Is this correct? I haven’t taken them out of their packages, but it looks like they might be a booger to get apart after they are joined. If this isn’t a good idea, I can easily get better pins.Dohrm, the three pin Deans are fine for E36. My guess is they are servo connectors for RC. You do not need to cut off a pin. Just do not use one pin. The connectors should be polarized, meaning the male and female go together in only one way. If they are not, I would not use them. Too much chance to get them reversed. I posted a wiring diagram for my timer on one of the pages in electric forum.
This will sound like I am a hell of a fool, but I don’t know nuthin bout no electricity! I have an on-off switch I intend to put intothe E36. Which of the 3 prongs do you solder a wire to? Does a wire go to each end? It’s pretty small, and not possible to see any details of the switch. I just wasn’t sure which of the prongs should be the chosen one. [ I don’t want to have to re-do ANY of the soldering if I don’t have to. I might burn down the house.] I ordered a battery pack that I thought would be correct but it won’t fit into the airplane. I guess I will try making a battery pack. [!!!!!!] building the plane has been fun, but finding the parts for the motor hasn’t been so hot. I would have been totally lost without all the valuable info you guys have posted. Many thanks!!!
Dohrm,
I can not say with 100% certainty, but if it is a tiny slide switch with 3 terminals, it is most likely a SPDT (Single Pole, Double Throw) switch. The center is the common (or input of the switch) and the two on the outside are the output. (Note: I am trying to be very simple and use simple terms, there is no input and output of such a switch). The center will close to the terminal in the direction you slide the lever.
I have your order, and your timer will ship on Monday. (I expect). I am including a nice switch with the timer and instructions on how to use it. You can see it on my web site. TT-SP. I include instruction on how to hook it up.
There is just no way you are going to get out of some soldering. Sorry. If you lived here, you could come over and I would solder it up for you.
You might want to look at the wiring diagram for my tiimer on my web site.
It is more specific to my timer than what Rex did (the one above is from Rex, not me). Same for the one in the lastest Digest. In fact, that one is not corrrect at all.Thanks Hank, it is really only a matter of not having done it very much. It is much easier using a torch on a piece of copper water pipe!! Ain’t no way I am attacking the Smoothie timer I bought a while ago until I learn how to do this better. I can do water pipes, the rest is still on the learning curve.
Have you read the details on how to solder on my web site? Has photos of what it is supposed to look like, and the correct tools to use. My timer will be a bit safer to solder than the smoothie, but you sure can fry it if you do not do it right.
@dohrmc wrote:
Thanks Hank, it is really only a matter of not having done it very much. It is much easier using a torch on a piece of copper water pipe!! Ain’t no way I am attacking the Smoothie timer I bought a while ago until I learn how to do this better. I can do water pipes, the rest is still on the learning curve.
Dohrm, I guess it is good you did not service the electronics bay in the Delta jets with a torch. 😀
I just drove ’em, didn’t have to fix ’em. Our Delta mechanics know their way around an electronic bay. Reminds me of a [supposedly] true story. FAA guy is giving one of our old captains a little quiz. Asks the tail height, a lot of trivial stuff about the systems on the aircraft. Finally asked the captain what would he do if he was sitting at the gate and the xxxx system [don’t remember what it was], caught on fire. Captain said, “I’d call my wife”. FAA says “Why would you do that?” Captain: “She’s never seen one of these big s.o.b.s burn up!”
FAA guy supposedly left the area shaking his head. I wish I’d done it!
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