I don't understand what you mean.
-
Welcome to RCCrawler Forums.
It looks like you're enjoying RCCrawler's Forums but haven't created an account yet. Why not take a minute to register for your own free account now? As a member you get free access to all of our forums and posts plus the ability to post your own messages, communicate directly with other members, and much more. Register now!
Already a member? Login at the top of this page to stop seeing this message.
4PK Setups, Tips, Tricks and Help
- Thread starter Harley
- Start date
I don't understand what you mean.
NGreen
Quarry Creeper
The 4th channel is also the power port on the receiver. Isn't there another wire that splits that port into power and ch 4 or am I high?
It's just a normal servo plug. You can just plug your BEC right into it. There is no special part number or anything. It can also go in any of the 4 slots just not the DSC slot.
NGreen
Quarry Creeper
I understand, so let me rephrase. How do I run 1 steering servo, 1 dig servo, 1 servo winch, as well as ESC in addition to plugging the power from my BEC into the receiver? Maybe I'm over thinking the whole thing...I donno.
Ok, now I understand your question better!
That is a much more interesting setup. For that type of setup I think you will need a more complicated wiring harness that splits the power from the BEC and feeds it directly to the servos. Depending on the power of your servos one may be able to be powered off your ESC. Otherwise I would power them all directly off the BEC and just run the signal wires to the RX.
Make sense?
NGreen
Quarry Creeper
Hmm, I could have sworn there was some wire that Futaba had for this. Oh well. Is it kosher to just have a "Y" harness on the 4th channel, one side using only power and ground and the other side using power, ground, and signal?
Charlie-III
I wanna be Dave
Yes, you could do that.
I did it a different way to power my steering servo without cutting wires or using a Y-cable. I used a PC board header to connect the BEC & servo wires together and the servo signal wire was plugged direct to the RX.
There are a few links in my other post (within the last week here) to give an idea on what I did.
ROWDY RACING
I wanna be Dave
I am getting ready to order a case for my 4PKS, and wanted to get a spare battery. Is there an upgrade battery for the radio or should I just get another stocker.
Get the LiFe upgrade. The part number is listed in the manual. It is lighter and has a higher capacity.
ROWDY RACING
I wanna be Dave
Does it still charge thru the jack on the front of the radio?
I have never used a LiFe battery does it require a cutoff like lipo?
The PT# is FT2F2100B, where can I get it?
Last edited:
It is recommended that you remove the battery and charge with a LiFe capable charger.
ROWDY RACING
I wanna be Dave
OK, what about LVC, does LiFe require that?
I can't find one of these anywhere.
No, those type of cells do not require an LVC.
ROWDY RACING
I wanna be Dave
Sweet, now I just have to find one, any idea where to get one? "thumbsup"
Last edited:
ROWDY RACING
I wanna be Dave
What do you think about this one? It says it has a built in protection circuit that allows it to charge using the built in jack and stock nihm charger.
http://www.killerrc.com/store/store.php#hyperionbattery
http://www.killerrc.com/store/store.php#hyperionbattery
House
RCC Addict
Here is the Hobbico version...
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXZTJ6&P=ML
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXZTJ6&P=ML
ROWDY RACING
I wanna be Dave
Yea I saw that one too. "thumbsup"
ducatidesmo
Rock Stacker
Looks like the one from KillerRC is it, unless you like taking your battery out.. but that's the point of getting LiFe, so you don't have to!
I think I'll be picking on of those hyperion packs up. To be able to charge out of the radio is king sh$% to me.
I think I'll be picking on of those hyperion packs up. To be able to charge out of the radio is king sh$% to me.
ROWDY RACING
I wanna be Dave
I agree. "thumbsup"
BFGcrawler418
Rock Crawler
Harley- Not sure where exactly to post this question up, I posted this in the Holmes Hobby Tech Question section but wanted to see if you or other people might have suggestions as this might be related to the 4PKS:ror:
John- A buddy of mine has an XR10 with Dual mamba micro pro esc's,14T pinions front & rear Futaba 4PKS & Holmes Torquemaster Pro 35T's.
Yesterday we programmed his MMP's and his 4PKS just like shown in Harleys instructional videos but for some reason when he is in 4WD and applies forward throttle the front tires will begin to spin first and at about 40-50% throttle the back tires will begin to spin. At full foward throttle the front tires will spin a little faster than the rear.
When he applies reverse throttle the back tires will spin backwards first and then the same at about 40-50% throttle the front tires will begin to spin backwards. But when in reverse at full throttle the rear tires will spin faster than the front.
We ran through the settings on the radio again to make sure it was getting a 100% power to both channels and we also hooked both ESC's up to the castle link to make sure everything was set exactly the same but everything looks good.
My question to you is, say if one motor was set to 7 degrees positive timing and the other was set to 14 degrees positive timing would it cause this? I was looking at the motors when I was there and it looked to me as if they both had positive timing but one had more timing than the other, Its hard to see the motors while they are in the truck but that is the only thing I could think it would be & I am stumped.
If it matters at all he paid to have the motors matched when he bought them and he said he specified they were for a crawler.
John- A buddy of mine has an XR10 with Dual mamba micro pro esc's,14T pinions front & rear Futaba 4PKS & Holmes Torquemaster Pro 35T's.
Yesterday we programmed his MMP's and his 4PKS just like shown in Harleys instructional videos but for some reason when he is in 4WD and applies forward throttle the front tires will begin to spin first and at about 40-50% throttle the back tires will begin to spin. At full foward throttle the front tires will spin a little faster than the rear.
When he applies reverse throttle the back tires will spin backwards first and then the same at about 40-50% throttle the front tires will begin to spin backwards. But when in reverse at full throttle the rear tires will spin faster than the front.
We ran through the settings on the radio again to make sure it was getting a 100% power to both channels and we also hooked both ESC's up to the castle link to make sure everything was set exactly the same but everything looks good.
My question to you is, say if one motor was set to 7 degrees positive timing and the other was set to 14 degrees positive timing would it cause this? I was looking at the motors when I was there and it looked to me as if they both had positive timing but one had more timing than the other, Its hard to see the motors while they are in the truck but that is the only thing I could think it would be & I am stumped.
If it matters at all he paid to have the motors matched when he bought them and he said he specified they were for a crawler.
Last edited:
