Hey guys I gotta quick question, I have a tmaxx 2.5 that has been fully converted to the 3.3 it is forward only, and when I bought the 4909 tranny off ebay it came with optidrive, can I still use it just for the failsafe? And could anybody remind me how to hook it up? Thanks
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quick question about my tmaxx 3.3
- Thread starter MRMAX93
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Metalhead Matt
RCTalk VIP
They're not worth messing with. Just makes a rats nest out of your rx box. It's best to just go with a quality fail safe.
- Thread starter
- #3
I do have the throttle return spring though that should help, but what type do you recommend and also I'm looking at rechargable battery pack which hump pack is best? I heard traxxas hump pack isn't great
ohsnap
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I may be wrong, but I don't believe that the optidrive acts as a failsafe. It only keeps you from shifting into reverse (or forward if already in reverse) if the vehicle is in motion.
You would be better off getting something like the OFNA Micro Fail Safe:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXEYG2&P=7
Battery - you want something with a high mAh rating - like this:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXNMD7&P=7
You would be better off getting something like the OFNA Micro Fail Safe:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXEYG2&P=7
Battery - you want something with a high mAh rating - like this:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXNMD7&P=7
ohsnap
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I have no experience with the Traxxas 2.4 ghz radio, so take my opinion with a grain of salt - but universally speaking, any 2.4 ghz transmitter/receiver would be an upgrade over an AM based alternative. It's stronger signal and you don't run the risk of two people having the same channel (and stomping on one anothers signal).
As to the failsafe...
I have seen people make comments about how the built in failsafe does not account for low vehicle (receiver) battery situations.
My vehicles are split between an older Futaba FM programmable system that does go into failsafe mode when the vehicles (receiver) battery situation is low and a Spektrum DX 3.0 which only appears to handle failsafe conditions involving communication link failure.
I've yet to run into a situation where the battery on a Spektrum equipped truck goes low on juice - but the manual and their website doesn't make it seem that the vehicle will go into failsafe with a low battery.
The best info I can find is that with the right transmitter (DX 2S) and the right receiver "*Telemetry requires a DSM telemetry-compatible receiver (SPM1205, SPMSR3300T)", that you can "monitor vital vehicle stats right from their transmitter, without any additional equipment... keep an eye on your battery voltage".
I have a hard enough time keeping my eye on the truck and where it's heading...
I know that the Futaba 3pm-x 2.4ghz system does take into account lost signal and low receiver battery, and if I was looking to buy a new system (and given previous experience with Futaba systems) I'd lean towards buying one of their products.
As to the failsafe...
I have seen people make comments about how the built in failsafe does not account for low vehicle (receiver) battery situations.
My vehicles are split between an older Futaba FM programmable system that does go into failsafe mode when the vehicles (receiver) battery situation is low and a Spektrum DX 3.0 which only appears to handle failsafe conditions involving communication link failure.
I've yet to run into a situation where the battery on a Spektrum equipped truck goes low on juice - but the manual and their website doesn't make it seem that the vehicle will go into failsafe with a low battery.
The best info I can find is that with the right transmitter (DX 2S) and the right receiver "*Telemetry requires a DSM telemetry-compatible receiver (SPM1205, SPMSR3300T)", that you can "monitor vital vehicle stats right from their transmitter, without any additional equipment... keep an eye on your battery voltage".
I have a hard enough time keeping my eye on the truck and where it's heading...
I know that the Futaba 3pm-x 2.4ghz system does take into account lost signal and low receiver battery, and if I was looking to buy a new system (and given previous experience with Futaba systems) I'd lean towards buying one of their products.
2revo1maxx
Hardcore RCTalk User
Ofna failsafe ftw. 15 bucks.
- Thread starter
- #9
yea i guess i wont go that rout then.. ill just look into getting a futaba system or just get a seperate failsafe, which is probably what ill do i dont have a wallet full if you know what i mean. so ill just get a seperate failsafe probly..and does anybody know if its true that if i upgrade to the rpm arms on my maxx, will the thicker bigger shafts which I'm running rub? i heard this somewere..:whhooo: