Team Saint Robot Builds

[maddox10]

We got a few chargers. 2 4 channel ones

This is the 4*100W

The older, 4*50 W

[craig_colliass]

Thanks I do like the 100w one I think Clive B has that one too.

[cliveb]

Yes thats the feller Craig. Jonno and Learo have one as well.

[grant_ploughbot]

The 4 channel chargers are very useful for smaller packs, allowing you to charge 4 completely different packs at once. However they're not really powerful enough to use on the larger 6s 5000 packs. If you can find a 100w version they're better but still limit you to less than 1C (4A max charge on 6S).
I tend to have two chargers, a multi charger and a larger more powerful one that will charge a 6s 5000 at 2C easily.

[craig_colliass]

Thanks guys if I go for Li-ion I think I will go for that charger

Grant
Can you, (in the event I go for LiPo,) recommend batteries, supplier and charger for the larger size packs? the 6s 5000 35c,
I am hoping to run the next robot on only 22.2V so I was thinking of going for 2 packs in parallel. I have a cellpro 10s charger but would only charge one battery at a time!

[geeza]

Craig in turbulence I run that same setup as you just posted, optipower brand which I know is what grant will recommend.

[maddox10]

If we're discussing heavier chargers.
Leo has 2*200W and single 400W in his arsenal of chargers.

Of course, if you want to charge real fast... better get a hefty powersupply (One of Grants for example) and this 2*1300W monster.

[grant_ploughbot]

I have used two high power chargers very reliably. The Hyperion super Duo and the PowerLab 8 or 6. For these higher power chargers you do need to look at a 24v PSU though. Ideally anything dual channel over 300w per side or parallel charger over 700-700w will do nicely. If you have a cellpro 10s though it might be cheaper to just get a second one of those with the FRA discount through optiPower.

[craig_colliass]

At last some bits for the new Seraph have come, Shown below is one of two pods that will be connected by a frame with a sword in it.

The sides and front are made from 3mm Stainless Steel! the rear plate next to the battery is 3mm aluminium.
as you can see everything is tight hopefully not too tight!

If you thought the last Seraph was difficult to fight, this one should be impossible!

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[Ellis]

Looks great! Folding on the steel is very neat, how did you do it? I spy a pretty big vice and hammer in the first pic, is that the answer? Wouldn't be surprised if you have an actual bender, the radius looks very consistent. I'm sure it will all fit nicely. Look forward to more progress.

[craig_colliass]

Thanks for that but I must confess bending small 3mm Stainless steel parts is just not possible in a shed with a hammer and get it this neat.
I had to go to an engineering company that specialises in this type of work and they had problems with the holes stretching close to the corners.

Progress yesterday, sorted out motor mounts and hub position the 12mm stud bar is crude but shouldn't bend.

2013-11-17 09.43.45.jpg


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[craig_colliass]

I am looking for a supplier for the items below any ideas?

1/ silicon insulated cable 6mm2 10awg or bigger 8awg.
2/ in line fuses about 80-100A
3/ connectors EC5

I am looking at re-wiring a few robots and changing connectors to the EC5 type

thanks

Craig

[shakesc]

Hobbyking EC5
eBay for fuses (midi or maxi car fuses)
Havent got completely happy for a cable supplier

[adz600]

Hobbykings cable is good,

[Mouldy]

eBay for all of that