Mr.Purple (FW)

[Mouldy]

5ampx50C = 250a

Normally packs have a continuous C rating and a burst C....

I'd suggest a 125a auto style fuse... That'll take 250a for a while.

The FRA need to put in place a rule set for people to choose fuses... If you had a 250max burst lipo, and a 250a fuse... You'd never get the fuse to blow before the lipo.

[JammyONE]

I have never heard of a auto style fuse, nor do I know were to get one.

Oh and I forgot to give the dimensions of the robot. it's 14.50 inches wide, 11 inches long and 2.64 inches tall.

[Max]

They are on technobots listed under automotive fuses I think

[JammyONE]

Seems like they only go up to 100A and no fusebox that exist for this type of fuse.

It may just be easer to have a 35-40c version of the Lipo that can work with a 100a auto style fuse.

[Max]

http://www.technobotsonline.com/fuses-a ... older.html
There is a fuse holder for it, I imagine you can get bigger fuses from eBay or car shops?

[JammyONE]

I know about those fuse holder's. But don't I need a fuse holder that can hold two? or maybe get two single one's and connect them together with a Terminal block.

I don't know I'm just throwing ideas at the wall.

[plargen]

here's a couple i found on ebay

http://www.ebay.co.uk/itm/In-Line-Maxi- ... 318wt_1151

this 1 u can use a couple of bolts and rig crimp connectors

http://www.ebay.co.uk/itm/1-x-100-amp-M ... 1108wt_919

[JammyONE]

I have an idea. Can you have two single auto style fuse work together on the same positive wire or am I being silly?

[PJ-27]

An 'Auto' fuse' is just one used in automotives, also known as blade fuses or car fuses. Dirt cheap on eBay.
100a is easy to find, and should be ample (pink in colour I believe), even at 100a and just over it'll take a few seconds before it blows.
If you put 2 fuses in parallel then you'll effectively double the amperage before they'll blow, but that's just more things to go wrong!

I solder and heat shrink my wires clean onto my fuses, one less point of weakness. If they blow it's a pain to change, but fusing appropriately should avoid that.

[JammyONE]

Update

Did a little bit of cutting up the mild steel. I'll do more at the weekend.

So this is what it looks like so far.
[attachment=0:3empbsyx]IMG_1972.JPG[/attachment:3empbsyx]
At this point with all the components in, it weights 8.2KG.