Max battery weight on a Scout

Lynxmotion Legged Robots
1

Hey all…

Does someone know what the Scout can carry in weight ?

I’m going to use 13,8kg servos 480oz

I have looked at the following LIPO pack: hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=9172

But it has a weight of 282grams 10oz, and I’m not sure how that will affect the ballance and walking abilities on the Scout…

anyone have an idea about that ?

EDIT:
and a little site question: with voltage cutoff regulator should i use with a 5A lipo pack and 12 high torque servos, I have found some, but the are equipped with very thin wires, and looks like the whole thing would melt down if I plug 5A into it and drive 12 servoes in the other end… :S is it just me, or does this look a little underrated for my use… ? hobbycity.com/hobbycity/store/uh_viewitem.asp?idproduct=3735

Best Reguards
OCMaster

2

Can’t answer payload questions without knowing what servos are installed. If they’re cheap lead filled china made garbage servos your payload is the least of your problems. :stuck_out_tongue:

3

Heeh, your right about that… :slight_smile: It ain’t totally overkill servos. I’m going to use Power HD 1201MG servos @ 13,8kg @ 6v

They have some good review around on the web, so i trust that they will do the job…

I’m just afraid that the 5A lipo pack is to heavy for my setup… but i hope to run with lipo’s …

I have been looking at an UBEC to cutoff my voltage with 6v, but i’m a little confused about how many amps it is going to load. i’ve looked at 6v@3A and 6v@5A, but the wiring on those units seems a little thin, but maby it’s no problem… ?

I have seen some of you use lipo’s. Witch UBEC’s are you guys using… ? :confused:

4

Hi,

I’m using LiPo’s on all my robots. And I’m using a 8 amp UBEC regulator from Turnigy. I would guess that one of these should be enough for your Scout:

5

Thanks zenta…!

I have now ordered one of these ubec’s together with a turnigy 6 lipo charger and 2x 2200mah 2s packs :slight_smile:

I hope to recived the scoutkit in this week so i can get on building … :slight_smile:

Thanks for the help zenta…! :slight_smile: I’m very appreciated

best reguards
OCMaster
Denmark

6

Hey zenta

Thanks for the tip with the Turnigy UBEC… It just works like a charm. :smiley:

Do you use a 9v batt. also, or do you just power things up with the lipo pack… ?

Best Regards from Denmark

7

I’ve used both solutions you mentioned, for Felix and T-Hex one LiPo is powering both electronics and servos. For saving weight I would try the single battery solution. The electronics are supplied directly from the LiPo (no regulator).

8

Okay, directly even… :open_mouth: I don’t think my servos would be happy to get the 7,4V supplied directly… :slight_smile:

I guess that you use some better servos in the other end of my price tag… :slight_smile:

Best Regards from Denmark
OCMaster85

9

I said that the electronics (SSC32 and BB2) are supplied directly to the LiPo, the servos are supplied with stable 6v from the UBEC.

10

Ohhh sorry, my bad… :slight_smile:

I just run everything trough the UBEC… :slight_smile: I better play it safe… :wink: Would cry for a week if I fried some of my new stuff :laughing:

11

It is best to power the VL inputs from raw battery voltage. The VS terminals should be powered through the regulator though. :wink:

12

I agree.

When it comes to 2S LiPo’s their voltage are pretty safe for the VL input, since it isn’t higher than 8,4 volt at max.