Another New Antweight..

All things antweight

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teamocean
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Re: Another New Antweight..

Post by teamocean » Mon Jan 06, 2014 2:36 pm

I've got some 20mm wheels which will fit the D shafts. How many are you after?
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Rapidrory
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Re: Another New Antweight..

Post by Rapidrory » Mon Jan 06, 2014 4:21 pm

That'd be great, i only need 2.. What sort are they?
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Re: Another New Antweight..

Post by Rapidrory » Thu Jan 16, 2014 5:33 pm

Well, most of my parts have arrived now, so can get on with building a bit more..

However, turns out you can't use a 3 channel ground Rx with a standard aircraft transmitter... suppose it makes sense, but none the less irritating as now I need to find another receiver... :x
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EpicentrE
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Re: Another New Antweight..

Post by EpicentrE » Thu Jan 16, 2014 5:42 pm

Rory, what frequency is your transmitter? If it's for aircraft it's most likely 40mhz - if that's the case, I have quite a few old 40mhz receivers which I'll probably never use again which I don't mind donating, as long as you have the appropriate crystals.
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Re: Another New Antweight..

Post by Rapidrory » Thu Jan 16, 2014 6:08 pm

No no, my 2.4 GHz Orange Rx/ Tx just arrived today... Seems there's a difference within DSM2 between ground and air protocols though... Fortunately i did get a 6 channel air receiver as well, it's just i have 2 robots and i'd rather not have to share receivers between the two, specially since i'm going to be soldering it in! :L Appreciate the offer though :)

Also, shouldn't we strictly speaking be using ground protocol systems anyway? I know no one does, i just always remember being told about not being allowed to use 40MHz on an aircraft, and i'm assuming the rule applies for 2.4GHz? (albeit the other way round in this case)
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Re: Another New Antweight..

Post by EpicentrE » Thu Jan 16, 2014 7:54 pm

I'm sure someone can correct me, but to my knowledge there's no difference in 2.4ghz systems. Because of how 2.4ghz works there's no risk whatsoever of interference and therefore regulations splitting the two classes aren't required. Are you sure your other receiver is DSM2, and not just DSM?
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peterwaller
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Re: Another New Antweight..

Post by peterwaller » Thu Jan 16, 2014 8:30 pm

As I understand it the two are not compatible due to the difference in frame rates.
I think the basic DSM2 part is probably the same but the ground unit have a faster frame rate which is possible because they are limited to 3 channels.
With air systems the frame time is about 22 ms allowing upto 10 channels but the ground systems run at about 11ms on three channel and and 5.5ms on two channel giving faster response to changes of stick position.

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Re: Another New Antweight..

Post by EpicentrE » Thu Jan 16, 2014 8:50 pm

You're a font of knowledge Peter, and I apologise for my misinformation above. Most interesting.
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Re: Another New Antweight..

Post by Rapidrory » Thu Jan 16, 2014 9:00 pm

Well the two I've got are

http://www.hobbyking.com/hobbyking/stor ... eiver.html

and

http://www.hobbyking.com/hobbyking/stor ... eiver.html

They do say ground and air, and that they only work with ground or air transmitters respectively...

Shame about that; the 3 channel one was the more expensive and better fitting... at least i know why it doesn't work now, Cheers peter :)
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Re: Another New Antweight..

Post by Rapidrory » Fri Jan 17, 2014 6:14 pm

Ok, so word of warning: http://www.hobbyking.com/hobbyking/stor ... _0_12.html do not make good weapon servos... Tried to flip something heavy with one in my flipper, and stripped the gears instantly... the servo's now pretty much useless... woo.

So... back to hunting the internet for suitable servos... :-?
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