Wotty speed controller

[geeza]

What batteries have you got in there Marco?

[Gaseraki]

two 12volt tornado packs from overlander giving 24volts
they have 3.7amps each

[Gaseraki]

It works!
Tried it on 40mhz and it works. Guessing there is something wrong with my spektrum set but hey im not complaining.
Pic on profile of how hello dave is looking. Fitted all electronics and added tensioners to the drive chain.
Been driving it around today and its bloody powerful. Pushing around my big sofa.
Any hows this is the heavyweight section so I would just like to add.

If your having trouble with your wotty on spektrum. Have a go with a 40mhz system.

[pressure]

Info for owners of early Wottys!
The spektrum, apparently, leaves gaps between its transmition pulses and because the Wotty works so fast it thinks the signal has stopped!
Ian has a software update for this, just means swapping a chip, contact him, Im sure hell upgrade you.

[RogueTwoRobots]

Have a go with a 40mhz system.

Dont!

Having the majority of roboteers on Spektrums means frequency clashes with my 40MHz set are a thing of the past

*waits for some smartypants to point out that frequency clashes are a thing of the past with Spektrums too*

[Gaseraki]

I meant to check your wotty is working :P
Not as a perminent downgrade

[pressure]

Using 40 meg now with all the spektrums about is not advised.
We have experienced massive interference problems when using 40 meg in with a lot of Spektrum controlled bots, Skink has suffered the most where there have been more than 6 bots in the arena.
It has worked perfectly, alone in the arena even at 30 metres +, but as soon as its joined by lots of others on Spektrums its uncontrollable.
Ian watts has said its because all the 2.4 gig frequencies are producing harmonics (using musical terminology) which interfere with the 40 meg reception.

[kane]

2.4GHz is unlikely to interfere with 40MHz. Even a poor quality receiver is not tuned to listen to the frequency. What you are likely experiencing is electrical noise from a large number of robots being present in the arena. 40MHz is notorious for interference from motor noise and other EM sources. This is something that 2.4GHz is completely immune to.

Radio interference has always been a problem even with two robots in the arena. The more robots present the more interference that is generated and the less chance your robot has of avoiding interference. The only solution is a technology that doesnt suffer these issues.

[typhoon_driver]

I think the reason that 40 meg suffers more these days is that there is no need for people to go to the same lengths to cut out interference when using 2.4 gig eg - capacitors on motor brushes

so you have a lot more machines in the arena creating more noise than they used to.

[grant_ploughbot]

Yep- I think the main thing is the lack of suppression inmost of the robots now - since using the spektrum Ive removed all forms of suppression from my astros as its more to cause trouble when they are not needed for me.