Problems w/fitting Hirobo motor/ESC etc

[abd08]

Hi all,

Am using Hirobo's official "power pack" for my Lepton EX, and have run into some problems:

1. Mounting the Hirobo motor as per manual, and setting the pinion as low as possible still seems to leave about 1-1.5mm over the main gear (see pic).

2. Mounting the Hirobo ESC is ok towards the back, but towards the front it won't fit straight because of the radio mounting plate (pic). The only solution seems to be to cut a section of the plate off!! Is it ok for the 2 to touch?

Wires exiting the ESC at the front being bent are probably no big deal.. then again.. I'm a complete noob to electric heli's, so put a pic in anyway!

Do I just add shims for (1) between the motor and frame, and use a second spacer + longer screws to fix (2)?

Look forward to getting your guys input!!

Thanks!!!
Rajiv

[kat]

This picture is from Hirobo's web site.

The height of their pinion looks like yours ... so you might be OK?

But their ESC seems to fit nice. Maybe you have to shave a bit off the bottom of the gyro mount even when using the spacers?

[abd08]

aiyaa... should've looked it up!! Thanks for the pic =) Am a little nervous taking their image as the 'standard' at face value though... :?

So it's ok then for the receiver mount to be touching the ESC then, as per their picture?

Oh yeah, just a heads up to anyone else attempting to use the Hirobo electronics:

- the motor in the picture has been screwed in such that the middle screw is completely inaccessible w/out removing the pinion. In real life, if you want to be able to adjust the motor position, the wires will either point out directly under the heli into the battery compartment, or point diagonally towards the rear of the machine.

- the plastic Hirobo have decided to use for the ESC is really really "soft" IMHO. Be very careful tightening any screws as you risk stripping the thread, or deforming the plastic! :arggg:

K.. thanks!!
Rajiv

[ArthurKnowles]

As long as the gears have a good mesh any extra height shouldn't be a problem. Gears do not have to me the exact same height, but you want maximum contact area with the main (plastic) gear.

Same with the wires, they are flexible and bending (slight radius) shouldn't be a problem. Most wire is flexible enough to bend all the way back (180 degree) without damage, but that also doesn't mean you should bend them hard enough to crush either. Less strain is always better.

As for the speed control, I didn't use theirs so can't be 100% sure, but suspect that if you use the spacers and they do not provide enough clearance then you should get bigger spacers.

[abd08]

sweeeeet... back to building!!!

Thanks guys!!! :D

[vksy]

1. Mounting the Hirobo motor as per manual, and setting the pinion as low as possible still seems to leave about 1-1.5mm over the main gear (see pic).


The extra height is fine.


2. Mounting the Hirobo ESC is ok towards the back, but towards the front it won't fit straight because of the radio mounting plate (pic). The only solution seems to be to cut a section of the plate off!! Is it ok for the 2 to touch?


Cut or shave the plastic RX mount so the ESC doesn't rub. The plastic mount is cheap. The controller isn't.

[toyturbo]

the estra height is fine, just make sure that the pinion gear doesn't rub on the tail belt, as it is just right above it.

[xircom]

hey abd08, I am thinking about buying this power pack too, but it's quite expensive - compared to separate ESC and Motor, it's for example more expensive than Hyperion 3025 and Jazz ESC together. The motor looks ok, but the ESC I have almost no info, just that it is 60A, and has governor. :? does that ESC have auto recongition of the lipo (i.e. automatically adjust 4S and 3S batteries) ? Do you have any manual, where the main functions are listed ?

Thanks a looooot :D

[abd08]

Heya,

There's a thin guide, but no specs. Here's what I got:

Does NOT automatically detect the lipo type
Inner/Outer rotor motor setting (default mode is "auto")
Braking (not used in helis)
Cell type selection
Reverse rotation setting
Setting soft start (not used in helis)
Sthg abt 8khz and 16khz w/motors
Governor (2k, 5k, 10k RPM. 10kRPM is abt 2550rpm for main rotor).

To be honest, the only reason I got the Hirobo stuff is the convenience. The packs/motor/charger etc. are all designed to work together, and for the heli.

If you know what you're doing, go for the Jazz ESC w/Hyperion motor... heck, with Bob's video + the posts here, u shd be ok. I never realised the online resources were so comprehensive when I ordered!!

PS: Hirobo Japan also shaved their Gyro mount, so it's "officially" ok!! :wink: