Boring Brick

[mrsam]

I've decided maybe putting an active weapon on the robot for the uk champs ( which hopefully i can get to) and i really like the idea of an axe, i've got a 2665w brushless that i was trying to sell but can't seem to shift and was wondering whether anybody has any ideas on how to make an axe/hammer weapon with it, i wouldnt expect it to be anything spectacular, just to look a bit more interesting, the motor in question is this one http://www.hobbyking.com/hobbyking/s...0KV_2665W.html any help would be much appreciated.

[Flag Captured]

Check out this - http://www.fightingrobots.co.uk/thre...-(no-name-yet)
Basically the same thing, looks rather complicated but it certainly proves that it's doable!

[mrsam]

Thanks for the reply but i would need something much simpler than that, i haven't got access to anything like the equipment that robochallenge have, looking to make something fairly simple if that's possible with this kind of weapon.

[mrsam]

I would just make a spinner, but 1) i haven't built one before and so wouldn't know where to start and 2) unless somebody has a disc that they're not using and want rid of i don't have the money to get my own machined.

[mrsam]

Could anybody point me towards a suitable relay to power an axe weapon? found these but not sure if they're any good http://www.maplin.co.uk/p/24v-30a-dc...ve-relay-n01aw

[maddox10]

That one is a standard 12 or 24V relais. Fine to upgrade an old electronise or to make an RC switch something heavier, like a hefty solenoid from a valve. But for an electric axe that works it's rather a waste of money.

In Kashei we use a piece of custom electronics, to fire a Speed 900 @6S. But the setup is prone to molten motors, so it needs more R&D.

Best bet atm is to use the TZa85 hacked speedo to control the motor of an electric axe.

[mrsam]

Okay thanks once again Mario

[shakesc]

That one is a standard 12 or 24V relais. Fine to upgrade an old electronise or to make an RC switch something heavier, like a hefty solenoid from a valve. But for an electric axe that works it's rather a waste of money.

In Kashei we use a piece of custom electronics, to fire a Speed 900 @6S. But the setup is prone to molten motors, so it needs more R&D.

Best bet atm is to use the TZa85 hacked speedo to control the motor of an electric axe.

The hacked TZ85a is a good starting point but it won't be enough to avoid burn outs.
Currently working on code for an Arduino to sit between the receiver and TZ85a.
Managing the limits of motor actuation is important along with other things such as motor stall, soft start etc.
Just need to get some time to finish

[mrsam]

Does anybody have any tips on shortening a length of chain?, i've got some 6mm stuff that is way longer than i need

[Ellis]

We just used a hammer and a thin-strong-something to knock out pins in and out accordingly. Naturally, that got boring quite quickly, and eventually we bought something similar to this: http://www.ebay.co.uk/itm/TK012-6mm-...item53f9ff7fb5

Better than the hammer and pliers approach... but not by a lot, haha. It'll do the job but is still mighty fiddly.