Sorry for the stupid title, I was just excited that I got it to work. haha. For a long time I was thinking about making my Trail Trekker 4ws. I didn't want to have to buy a lot of new parts or spend too much money and I didn't want to have to go crazy splicing and soldering and stuff.
In the end I used the stock rx/tx and esc so it's full time 4ws but if you turn down the steering trim it's not that bad and doesn't turn so much that it's hard to keep straight. I couldn't tell you about voltage or load or anything like that from running two servos but it seems to be okay running on a 2S lipo. If you want to use the cheap method you'll have to do a little bit of soldering (literally, the parts to solder are pretty tiny) but it's not too difficult. If you don't want to solder you can just buy a Servo Y-Harness with Reverse but they're somewhat pricy. I'll have pictures and maybe a video later today.
Parts List
1) Stock Trail Trekker: If you're reading this I assume you have this much already.
2) Another Servo: I used the HiTec HS-65:
Hitec HS 65HB Mighty Karbonite Gear Feather Micro RC Servo HS65HV HS65 65HB 65 | eBay
You can also go with a cheaper version like this one:
1 x MG946R Micro Metal Gear 55g RC Model Toward Tower Pro Servo for RC | eBay
3) New Steering Spindles (LOSB1702): I just went with the same parts here that you would find stock on the front end:
LOSB1702 Front Spindle Carrier Rear Hub Set McRC
4) Steering Links (LOSB1704): I made my own because these were expensive to ship to Canada from anywhere I could find them but if you want to save yourself the trouble of making some, order these:
Losi LOSB1704 Steering Links Servo Saver Set w Hardware MCRC | eBay
5) Servo Y-Harness/ Servo Y-Harness with Reverse:
If you can/want to solder get something like this one:
10" Universal Servo Extension Y Harness for Electric RC Models | eBay
If you don't want to solder get something like this one:
Y-Harness 6-inch/Reverser Standard | HorizonHobby
The Process
It's really all pretty much just plug in the new parts where the old parts were, especially if you got the y-harness with reverse. If you didn't you're going to need to reverse your servo which I did by following this simple tutorial:
https://www.youtube.com/watch?v=hnd1zwouWV4
The Hi-Tec looks different inside than his did in the video but not by too much. It was just packed in really tightly and I re-soldered the wires on the motor itself, not on the chip like he did. I would have posted a video but my process involved a decent amount of swearing and probably questionable soldering technique.
I'll show the rest in pictures when I get a chance to take some after work today.
here's a really crappy video that I took last night just to make sure everything worked. a proof of concept if you will. I had to film and drive at the same time and it was snowing, so the video sucks. please don't roast me
https://www.youtube.com/watch?v=qQnKWEksU_k
The future videos won't be horizontal videos either. Thanks for your patience. :shock:
Two more videos (I'm a bad camera man):
https://m.youtube.com/watch?v=3lfYdGk864A
https://m.youtube.com/watch?v=pp2MRk40DJA
In the end I used the stock rx/tx and esc so it's full time 4ws but if you turn down the steering trim it's not that bad and doesn't turn so much that it's hard to keep straight. I couldn't tell you about voltage or load or anything like that from running two servos but it seems to be okay running on a 2S lipo. If you want to use the cheap method you'll have to do a little bit of soldering (literally, the parts to solder are pretty tiny) but it's not too difficult. If you don't want to solder you can just buy a Servo Y-Harness with Reverse but they're somewhat pricy. I'll have pictures and maybe a video later today.
Parts List
1) Stock Trail Trekker: If you're reading this I assume you have this much already.
2) Another Servo: I used the HiTec HS-65:
Hitec HS 65HB Mighty Karbonite Gear Feather Micro RC Servo HS65HV HS65 65HB 65 | eBay
You can also go with a cheaper version like this one:
1 x MG946R Micro Metal Gear 55g RC Model Toward Tower Pro Servo for RC | eBay
3) New Steering Spindles (LOSB1702): I just went with the same parts here that you would find stock on the front end:
LOSB1702 Front Spindle Carrier Rear Hub Set McRC
4) Steering Links (LOSB1704): I made my own because these were expensive to ship to Canada from anywhere I could find them but if you want to save yourself the trouble of making some, order these:
Losi LOSB1704 Steering Links Servo Saver Set w Hardware MCRC | eBay
5) Servo Y-Harness/ Servo Y-Harness with Reverse:
If you can/want to solder get something like this one:
10" Universal Servo Extension Y Harness for Electric RC Models | eBay
If you don't want to solder get something like this one:
Y-Harness 6-inch/Reverser Standard | HorizonHobby
The Process
It's really all pretty much just plug in the new parts where the old parts were, especially if you got the y-harness with reverse. If you didn't you're going to need to reverse your servo which I did by following this simple tutorial:
https://www.youtube.com/watch?v=hnd1zwouWV4
The Hi-Tec looks different inside than his did in the video but not by too much. It was just packed in really tightly and I re-soldered the wires on the motor itself, not on the chip like he did. I would have posted a video but my process involved a decent amount of swearing and probably questionable soldering technique.
I'll show the rest in pictures when I get a chance to take some after work today.
here's a really crappy video that I took last night just to make sure everything worked. a proof of concept if you will. I had to film and drive at the same time and it was snowing, so the video sucks. please don't roast me
https://www.youtube.com/watch?v=qQnKWEksU_k
The future videos won't be horizontal videos either. Thanks for your patience. :shock:
Two more videos (I'm a bad camera man):
https://m.youtube.com/watch?v=3lfYdGk864A
https://m.youtube.com/watch?v=pp2MRk40DJA
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