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10-20-2005, 12:45 PM
| #1 |
| Pebble Pounder Join Date: Sep 2004
Posts: 150
|  brainstorm for simple 2 channel radio dig setup
Anyone know of a 2 channel radio that is fairly small ( deck of cards or smaller?) the channels only need to send an on off type signal. I have an idea but not sure if it will work due to I know the basics about R/C electronics. My goal is to somehow get control over the front and rear motors in my clod individually. Now I know I can use a 4 channel stick radio but I like my 3 channel pistol grip. The plan: I would run 2 speed controls and use a y harness to link them. Now I was thinking if I could get a really small 2 channel on off type raido I could just use it to control which esc's got signal. Seeing that I only want to use this feature for front and rear digs it wouldn't have to be on the same controler. I just don't want to be holding two big controllers. Maybe I could hijack something like I'm talking about from a simple walmart r/c or cralwer???? Any Ideas? Am I going at this wrong? I could be way off but thought I would at least toss the idea out. Last edited by TJeeperMan; 10-20-2005 at 12:48 PM. |
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10-20-2005, 12:55 PM
| #2 | |
| I wanna be Dave Join Date: Jan 2004
Posts: 5,027
| Quote:
 what about a 1/18th scale Nylint radio? | |
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10-20-2005, 12:59 PM
| #3 |
| Pebble Pounder Join Date: Sep 2004
Posts: 150
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I was thinking about that but didn't want to pay 40 bucks to see if it would work. hmmm, really woudn't even need to keep it in the stock grip. I could pull out all the electronics and find a smaller box......wheels are a turning  I'm going to have to head to walmart to see what I can hack up. Last edited by TJeeperMan; 10-20-2005 at 01:04 PM. |
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10-20-2005, 01:40 PM
| #4 |
| I wanna be Dave Join Date: Feb 2005 Location: Cleveland, OH
Posts: 8,009
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don't know if you could use this, but Dynamite sells the Tranny Guard channel expander/mixer to let you shift a T-Maxx with a 2-channel radio. what it does is engages a 2-position servo when you go to full brake for a specified period. could do the trick maybe? part number DYN2552 |
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10-20-2005, 01:50 PM
| #5 | |
| I wanna be Dave Join Date: Jan 2004
Posts: 5,027
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10-20-2005, 01:55 PM
| #6 |
| I wanna be Dave Join Date: Feb 2005 Location: Cleveland, OH
Posts: 8,009
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sounds like the same idea, yeah. we don't sell XTM so i'm not familiar with their stuff, but i've heard of it. think it'd work, or could be made to work? |
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10-20-2005, 02:41 PM
| #7 |
| Pebble Pounder Join Date: Sep 2004
Posts: 150
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I found the manual for it here http://www.horizonhobby.com/Shop/ByC...ProdID=DYN2552 sounds like what it would do is split my thrid channel into two. It could work but only if after it engaged the front or back esc it would give me back my thrid channel for steering. I guess I don't see how it would switch the channel. |
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10-20-2005, 04:56 PM
| #8 |
| owner, Holmes Hobbies LLC   Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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so you are wanting 4 channels out of 3 right? A shifting box might do the trick, but getting the kinks worked out will be a bugger. If you have a 4 channel stick, why not use it? I like using both pistol and stick radios, but I fly planes too so I have to like stick radios. Edit: I see what you are saying. You want a four channel pistol. I say buddy box on a hacked up tq3 board, but I dont know what to do about mixing the channels together proper. Last edited by JohnRobHolmes; 10-20-2005 at 04:59 PM. |
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10-20-2005, 05:26 PM
| #9 |
| I wanna be Dave Join Date: Jan 2004 Location: Austin Texas
Posts: 3,866
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The only problem that I see is that you will have to find a way to control both motors. You can kill power to either of the two motors, but you'll also have to figure out how to keep the other axle locked. If you don't you'll just be draging or pushing it around. I do this when I'm going between obsticals where only front or rear wheel drive is needed to lengthen my runtimes. Also, you'll loose the ability to do 360 degree and sideways digs. But what you could do is have the R-box set-up with a "stick in the spokes" dig set-up so that when it switches channels you loose your rear wheel stearing for throtal control (you won't need it with with that type of dig anyway). If you use a 3-way togel you could do the same thing to the front and back and make it so that up is front dig, center is no dig, and down is rear dig. Last edited by Highmark; 10-20-2005 at 05:31 PM. |
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10-20-2005, 08:31 PM
| #10 |
| Pebble Pounder Join Date: Sep 2004
Posts: 150
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Highmark, that is exactly what I was thinking about. The wiring is the part I'm unsure of. My best guess is I'd have to y the two esc together then run that tothe r-box. r-box plugs in to the throttle and the 3rd channel plugs into the r-box??? But then what controls which esc is getting shut off? Can someone maybe mock up a diagram. Id try but it would most likely be way off.
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10-20-2005, 08:59 PM
| #11 |
| Pebble Pounder Join Date: Sep 2004
Posts: 150
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