My heavyweight - Apollo in the making.

[razerdave]

You said you're waiting on the other 2 batteries, I presume its going to be on 36v, If they're 12v batteries.

[widow_twanky]

George,

I am concerned!

Looking at what you have bought:

- you have a 2x15A Roboteq AX500. A very good speed controller but not one which is anywhere near beefy enough for a heavy weight. This is even underrated for some of the bigger featherweight motors.

- You have a 12v 7ah sla fire alarm battery and whilst you say there are another two coming the capacity of these will woefully inadequate for a heavyweight.

I would suggest you take a step back and decide what you want to build. Roboteq are very good in terms of customer service and i suspect they would be reasonably happy to replace the speedo for an AX2550 ($350 dollars more expensive) and if you got the batteries from somewhere like Technobots you should be able to get an exchange. Heavies need to be a lot more beefy than what you are anticipating and will pull a whole lot more current than any logic dictates.

If you wanted to build a feather you have some good kit for it.

It will run the bosch 35w motors which are used in many feathers and are available on ebay

http://cgi.ebay.co.uk/Rover-800-Electri ... 5ad268e92b

If you ask nicely on the forum I'm sure someone will make up some axles for you.

I don't really want to sound negative but I also don't want to see you end up with a shed full of parts which are no use to you and unable to afford to be able to put at least something together. Mistakes can be very expensive with robots.

Andy

[dgr]

I didn't wanna say anything cos last time we did we got a bad response, but yeah, that stuff is way too weedy to power a heavy.

[George_TeamZog]

You guys are right. Heavies aren't my thing. My parents have told me two feathers are fine. So a downscaled Apollo. Can't think of an idea for the other one. Would the speed controller be alright for a feather?

[leorcc]

Would the speed controller be alright for a feather?

Yes, absolutely. As for the 12V SLA's being inadequate, lots of heavies as seen on TV drove on 3 or 4 of those. Gravity 3 had 3 Kobe 7Ah versions of these during series 7.

[George_TeamZog]

So basically it's now going to be a feather, exact same weapons system.

[widow_twanky]

Would the speed controller be alright for a feather?

Yes, absolutely. As for the 12V SLA's being inadequate, lots of heavies as seen on TV drove on 3 or 4 of those. Gravity 3 had 3 Kobe 7Ah versions of these during series 7.

Yep, speedo is fine for a feather. The SLA's i have to admit are not my field so i will bow to Leo's experience on that.

Andy