Team Thrifty /Fifty Build Diary for Bitza

[PJ-27]

Cool. We have a huge stack of dead drills in the workshop at the moment so I'll raid them for MOSFET's and resistors, see what I can find.

Cheers for the advise, this is very Bitza!

[woody]

Up to you... depends on the rating of the fets or power transistors.

You could just hook up the servo wires to one of these instead of the fets or power transistors.

http://www.jaycarelectronics.co.uk/prod ... ?ID=SY4086

Cool. We have a huge stack of dead drills in the workshop at the moment so I'll raid them for MOSFET's and resistors, see what I can find.

..you'll need to find / buy the resistors as the drills don't have them.

[PJ-27]

That was my original plan when I mentioned hacking a servo, just hooking it up to an existing relay.

If I can't find MOSFET's powerful enough then I'll do that

I've got loads of different rated resistors laying around, I'm sure I can make up what I need.

[woody]

Good find!

You should browse the web more .... I found those pages years ago.

Here's another 2 dug from the depth of my favourites that might interest you.

http://www.rctankcombat.com/articles/speed-control/

This second one is a copy of the page that once resided here .. http://www.x-eng.co.uk

http://www.teamonslaught.fsnet.co.uk/Rotraktor.htm

[PJ-27]

That page is great. It puts into words and diagrams most of my disjointed musings.

Don't worry I do browse the web. I just know there are some neat and very robo combat specific solutions that I would only learn from here.

Most of the time it's what I was already thinking only in a more viable/logical form!

[PJ-27]

Thinking about getting a Spektrum DX5E for new Bitza. Any reservations?
Also does it come with the type of mixing we all use to drive robots. I don't know what it's called, but it's advertised as having Delta Wing mixing, what ever that is.........

Thanks,

[woody]

Delta wing is an Ele and Ail mix.

BUT ...I think the DX5 has a reduced output when using the transmitters Delta wing mix....
IE.. Your bot might only go at 1/2 speed.

[Danjr1]

Go for the dx6i and I'll send you the YouTube link on how to get full throws but remind me as it's at home on the computer

[Laser]

I don't think that the mixing has redused throw, ie half speed.
I use it for my planes and I think it has the same amount of movement as normal.
You could always buy a dx5e and get a mixer as well if this is the problem or....
Buy a ESC with a built in mixer eg Sabertooth, SyRen, Scorpian.
You could go for the DX6i which is very nice but the dx5e is still very good.
I use a planet T5 with a sabertooth, which has built in mixing. This is almost the same as the spektrum but the planet, unlike the spektrum, doesn't have a failsafe.

[PJ-27]

Thanks for the offer of help but we are getting a DX5E because we can get one cheap.......

Don't really want to start buying additional mixers and none of our ESC's have built in mixing....