brushless 1/5 4wd conversion about to begin! couple questions.

[KaztheMinotaur]

Machine shop quoted $35 for the work and I can pick it up at 11:00 AM tomorrow. I will have to call them back and tell them 6mm deep and to countersink the screw holes on the non milled side.

I am having machine shop drill & tap the pinion also. My last attempt at tapping didn't go well...although I think that the piece was already hardned and that is why it didn't work.

He also agreed that I should harden at least the pinion. I will probably do both though. He recomended oil instead of water to quench in.

[KaztheMinotaur]

Got my gears back this morning and they look good.

I also got my Peltier coolers in the mail today. This isn't going to be the best way to cool. It is going to take too much to heat sink the hot side to get the gool side cool. Hot side got to 400 degrees in 20 seconds or so. Glad I didn't pay a lot for them...

I will use fans instead.

[Unsullied_Spy]

That's what I was talking about with the Peltiers. The cold side gets really cold and the hot side gets really hot. If you don't keep the hot side properly cooled the whole unit will burn itself out. I've seen people using them before on computer CPUs and they had a rockin' watercooling setup to keep the hot side from overheating.

[Ryu James]

Originally Posted by KaztheMinotaur

Got my gears back this morning and they look good.

I also got my Peltier coolers in the mail today. This isn't going to be the best way to cool. It is going to take too much to heat sink the hot side to get the gool side cool. Hot side got to 400 degrees in 20 seconds or so. Glad I didn't pay a lot for them...

I will use fans instead.

sweet! post pics if you got them. just got hit up by another guy on the HBF saying he is going to convert his rampage. before long there should about a dozen of these out there. it would be cool to see everyone posting here what they are doing but i know most of the 1/5 guys to make it to this forum.

[KaztheMinotaur]

It ended up being $42 for the machine shop work. Seems reasonable to me considering they got it done in a day.

I'm going to my mechanic tomorrow morning to have him help me harden the gears.

[Ryu James]

Originally Posted by KaztheMinotaur

It ended up being $42 for the machine shop work. Seems reasonable to me considering they got it done in a day.

I'm going to my mechanic tomorrow morning to have him help me harden the gears.

thats great. i found a new machine shop i am gonna try working with. this last one had a $100 min and usually took weeks to do anything cuz they are always so busy. the good thing is they were stones throw from my house. the new one is miles away but sound very low key, do small jobs, and are ready for work.

[Ryu James]

did everyone see the newly posted 10s brushless baja on yt?

http://www.youtube.com/watch?v=L73aNJ-wlIk

that is with the Neu 2215 600kv on 10s. all temps are cool and running sweet. hope that is a good indicator for me. that thing is awesome huh!

[KaztheMinotaur]

I got some clear LED lights to use as headlights...thought that might be interesting. I could mount them on some alum in back of the bumper.

I have a 3S 2500 mah LiPo to power the fans and RX. I'm going to run the fans through a switch that I can control from the RX. I will also have a BEC to power the RX / servos.

[Ryu James]

Originally Posted by KaztheMinotaur

I got some clear LED lights to use as headlights...thought that might be interesting. I could mount them on some alum in back of the bumper.

I have a 3S 2500 mah LiPo to power the fans and RX. I'm going to run the fans through a switch that I can control from the RX. I will also have a BEC to power the RX / servos.

thats a great idea. hadnt thought of doing it that way. i just got my fans today. got some big 60mm ones. one is made out of aluminum. they are the perfect size to mount on my motor mount but the 40mm i think will be more effective looking at it now cuz the entire fan fits inside the square hole on top of motor mount and i think will provide better cooling. the aluminum fan looks cool though. oh, plus it has 4 blue led's on it so it would look pretty cool having blue lights all around my motor with that shiny fan spinning.

i have a question though. it came with a weird connector. it is a 3 pin connector but not like a typical servo wire connector. can anyone tell me how i can convert this to a connector that would plug into my rx? i will post some pics in a bit.

[KaztheMinotaur]

Maybe the motor is brushless?

[Ryu James]

Originally Posted by KaztheMinotaur

Maybe the motor is brushless?

i think youre right. i remeber seeing something that said "brushless fan"

is the other wire white? if so just cut it, its a tach wire to tell the speed of the fan or something, regular bl fans still only run on 2 leads

[suicideneil]

Indeed, 99% of PC cooling fansd like this are BL- the white/yellow wire is the signal wire, so that when plugged into a fan controller or the PC's motherboard, the speed can be controlled to increase cooling when needed, or to decrease cooling & noise when not needed. The actual controller is built into the fan, you just vary the volts the vary the speed.

[KaztheMinotaur]

I got my gear cooked today and they are no longer nice and shiny. I'm soaking them in degreaser to the gunk off. A minute or 2 with a wire wheel and I am starting to see silver again. Burned boiling oil smells horrible.

[Ryu James]

Originally Posted by KaztheMinotaur

I got my gear cooked today and they are no longer nice and shiny. I'm soaking them in degreaser to the gunk off. A minute or 2 with a wire wheel and I am starting to see silver again. Burned boiling oil smells horrible.

did you do it yourself or somewhere else do it for you? exactly how was it done, do you know?