Re: To Joe [TANKS]

["Marc en Wendy" <marcmethorst-at-zonnet.nl>]

Joe,

 

Thanks for the detailed info.

 

For a second I thought it would be cheaper using the tx mixing and two ESC's.

I've come to the conclusion that Anvilus must be the best value for money in the hobby :-)

 

Marc

 

 

 

----- Original Message -----

From: "Joe Sommer" <anvilus9-at-adelphia.net>

To: <tanks-at-rctankcombat.com>

Sent: Monday, March 06, 2006 6:32 PM

Subject: Re: To Joe [TANKS]

> 
> Marc,
> 
> At 03:21 PM 3/6/2006 +0100, "Marc en 
Wendy" <marcmethorst-at-zonnet.nl> 
wrote:
>> > Can I plug 2 ESC's (assuming you mean Electronic Speed 
Controllers) 
>> directly in the rx and connect them to the motors, and 
set the mixing on 
>> the tx? Would this make a proportional 
controlling system?
>>
>>Pete C. replied that it 
would.
>>
>>Since I'm thinking of building a low budget second 
tank I was wondering 
>>what would be the difference between the above 
mentioned set up and the 
>>Anvilus controller set up?
>>I 
understand that I need ESC's that can handle the amps, but apart from 
that?
> 
> My relay SSR controller does three functions.
> 
1)  provides right-left mixing for single joystick operation (on-board 
PIC)
> 2)  provides forward-off-reverse for each motor (on-board 
relays)
> 3)  provides proportional speed control for each motor 
(off-board SSRs)
> 
> You can use elevon mixing in your radio for 1) 
and two ESCs
> can do 2) and 3).
> 
> However there are two 
problems.
> 
> a)  In my opinion, the only reliable reversible 
ESCs in our
> voltage/current range are IFI Victors 884 (40 A, 
$115),
> 883 (60 A, $150) and 885 (120 A, $200).
> http://www.ifirobotics.com/
> 
> I recently bought a 100/60 A reversible ESC (eBay item 
6038132557)
> for evaluation but it has not yet arrived.  They cost 
about $25
> in QTY=10 (eBay item 6039817396).  I will post how they 
work.
> 
> Other tankers may recommend other reversible 
ESCs.
> 
> b)  Elevon mixing usually only provides 70% speed 
for both motors
> when the stick is straight forward or reverse, or when 
the stick is
> hard right or hard left.  It provides 100% speed for 
one motor in the
> corners of stick travel.
> 
> If you want 
to use separate ESCs, I recommend using the IMX-1
> mixer ($40) from Robot 
Logic  http://www.robotlogic.com/product_imx1.html .
> 
> These are my recommendations -
> 
Roboteq AX1500 = $275 = 30 A per track proportional with mixing
> Roboteq 
AX3500 = $395 = 60 A per track proportional with mixing
> Roboteq AX2550 = 
$495 = 120 A per track proportional with mixing
> two IFI Victor 884s and 
IMX-1 = $270 = 40 A per track proportional with mixing
> two IFI Victor 
883s and IMX-1 = $340 = 60 A per track proportional with mixing
> Robot 
Solutions RS80D = $275 = 80 A per track proportional with mixing
> Anvilus 
relay SSR and two D1D40s = $150 = 40 A per track proportional with 
> 
mixing
> Anvilus relay SSR = $100 = 40 A per track forward/off/reverse 
with mixing
> Anvilus mini relay = $25 plus relays = 40 A per track 
forward/off/reverse 
> with mixing
> 
> Vantecs   
http://www.vantec.com/   are 
popular with combat robot builders.
> 
> The RS80D from Robot 
Solutions
> http://robot-solutions.com/RS1/product_info.php?products_id=29
> has worked very well for Steve Tyng.
> 
> 
Joe
> 
> 
> 
**********************************************
> Joe Sommer, Anvilus 
Machine Works
> 2378 Nantucket Circle, State College, PA 16803
> 
814.234.4773     anvilus9-at-adelphia.net
> http://www.anvilus.com
> 
> 
> 
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