[TANKS] Re: T062 Designated

[Matt]

I got it from a local plastics store. TAP plastics i think. I have no
idea what it is used for normally.

  -Matt

On Nov 14, 8:02 pm, "Derek Engelhaupt" <[EMAIL PROTECTED]> wrote:
> Matt,
>
> I was looking for rubber like that awile back in sheets with little
> luck.  Do you remember where you got it from?
>
> Thanks,
>
> Derek
>
>
>
> On Fri, Nov 14, 2008 at 4:53 PM, Joker <[EMAIL PROTECTED]> wrote:
>
> > Thats funny, because thats the same idea i have been trying to use.
> > It's working less than perfect, but let me know if you have better
> > luck getting it to work.  Mine might just be the less than perfect
> > circles i cut.  I was wondering if maybe someone else's idea would
> > work better.
>
> > Looks good though.
>
> > Jeremy
>
> > Matt wrote:
> >> I don't think they are from reinforced rubber, but I bought a 4x8
> >> sheet of 1/8inch rubber and cut it into sheets. I think it cost around
> >> 40-50 dollars. TONS left over.
>
> >>        -Matt
>
> >> On Nov 13, 11:07 pm, james <[EMAIL PROTECTED]> wrote:
> >> > Hay Matt
> >> > I'd like to say that's a very neat job on your tank.
>
> >> > Your tracks Are thay made from strait rubber or renforced rubber.
>
> >> > What is the thickness of it
>
> >> > Hope you understand my writting
> >> > James- Hide quoted text -
>
> - Show quoted text -
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[TANKS] Re: Shapelock

[Chrysanthos Kanellopoulos]

Michael, 
If it is the same product I am thinking of as a different brand, it is 
completely transparent, and it is also used to create water in ponds or pools 
in dioramas. You simply paint the bottom of the pond blueish or just coat it 
with putty for wood to replicate mud and fill it with this stuff.
And yes, it is very hard when it cojagulates .  From the price it seems like it 
is teh same product.

C
  - Original Message - 
  From: Michael Clark 
  To: rctankcombat@googlegroups.com 
  Sent: Friday, November 14, 2008 10:52 PM
  Subject: [TANKS] Shapelock


  I used this recently to build an Arc Reactor for a costume. But after playing 
with it I found it to be a very tough plastic when cooled.

  It would probably melt on a hot day outside, but it could be used to 
prototype parts.

  http://shapelock.com/ 

  A competing product is called friendly plastic.

  


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[TANKS] Re: battery charging

[Frank Pittelli]

Guy Gregoire wrote:
> I have a 12v. battery charger, and I recharge my two battery one at a time. 
> question: If I use instead a 24v. battery charger...can I charge them both
> at once, keeping them serial connected ?

It would be better to charge both batteries in "parallel" using the 12v 
charger (tie all black wires together and all red wires together).  That 
allows them both to reach their own maximum levels while on the charger, 
regardless of the difference between their internal resistance.  When 
charged in series, one battery will always charge higher than the other, 
with the difference in charge proportional to the difference in internal 
resistances.

Frank P.

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[TANKS] Re: T062 Designated

[Derek Engelhaupt]

Matt,

I was looking for rubber like that awile back in sheets with little
luck.  Do you remember where you got it from?

Thanks,

Derek

On Fri, Nov 14, 2008 at 4:53 PM, Joker <[EMAIL PROTECTED]> wrote:
>
> Thats funny, because thats the same idea i have been trying to use.
> It's working less than perfect, but let me know if you have better
> luck getting it to work.  Mine might just be the less than perfect
> circles i cut.  I was wondering if maybe someone else's idea would
> work better.
>
> Looks good though.
>
> Jeremy
>
> Matt wrote:
>> I don't think they are from reinforced rubber, but I bought a 4x8
>> sheet of 1/8inch rubber and cut it into sheets. I think it cost around
>> 40-50 dollars. TONS left over.
>>
>>-Matt
>>
>> On Nov 13, 11:07�pm, james <[EMAIL PROTECTED]> wrote:
>> > Hay Matt
>> > �I'd like to say that's a very neat job on your tank.
>> >
>> > Your tracks Are thay made from strait rubber or renforced rubber.
>> >
>> > What is the thickness of it
>> >
>> > Hope you understand my writting
>> > James
> >
>

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[TANKS] Re: battery charging

[Crooks, Steven M]

Sure.

A 12V battery is 6 Pd acid cells in serial anyway.

In wheelchairs,

The batteries are connected in series for 24 Volts.

Steven C.

 

 

-Original Message-
From: rctankcombat@googlegroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Guy Gregoire
Sent: Friday, November 14, 2008 7:45 PM
To: rctankcombat@googlegroups.com
Subject: [TANKS] battery charging

 

Hi, I am using two 12v. battery in serial to get 24v. for my motors.
 
I have a 12v. battery charger, and I recharge my two battery one at a
time.
 
question: If I use instead a 24v. battery charger...can I charge them
both 
at once, keeping them serial connected ?
 
I seen 24v. battery charger being used in the whellchair area, this
would make it easier.
 
Thank you.
 
Greg.
 





Visit messengerbuddies.ca to find out how you could win. Enter today.
 








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[TANKS] battery charging

[Guy Gregoire]

Hi, I am using two 12v. battery in serial to get 24v. for my motors.
 
I have a 12v. battery charger, and I recharge my two battery one at a time.
 
question: If I use instead a 24v. battery charger...can I charge them both 
at once, keeping them serial connected ?
 
I seen 24v. battery charger being used in the whellchair area, this would make 
it easier.
 
Thank you.
 
Greg.
 

_


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[TANKS] Re: Battery question

[Pureteenlard]

Nope. Nor do I have any dilithium crystals, anti-matter or cheddite

On Nov 14, 4:59 pm, Steve Tyng <[EMAIL PROTECTED]> wrote:
> Lead acid batteries suck.  I want to build a fuel cell f or the
> Cromwell.  Anybody have any Gas Diffusion Electrode material (also
> known as an Air Cathode) laying around?
>
> Steve
>
> On Nov 14, 10:56 am, "Derek Engelhaupt" <[EMAIL PROTECTED]> wrote:
>
>
>
> > These are all the reasons I installed the battery meter in the back of
> > the Sturmtiger coping Steve T's idea.  It's not an exact voltage
> > reading, but it gives me a good idea of the state of the charge in the
> > batteries (SLAs).
>
> > Derek
>
> > On Fri, Nov 14, 2008 at 9:53 AM, Cold comfort <[EMAIL PROTECTED]> wrote:
>
> > > Thanks for the info, its been very helpful.
> > > Greg
>
> > > On Nov 14, 11:40 am, Frank Pittelli <[EMAIL PROTECTED]> wrote:
> > >> Chrysanthos Kanellopoulos wrote:
> > >> > Good you pointed out Frank, so what is the voltage of a lead 12 Volt 
> > >> > battery
> > >> > after say the end of a battle, when it's too weak and the motors don't 
> > >> > spin
> > >> > anymore?
>
> > >> Probably down around 10v or so.  That's why we don't get a "full"
> > >> lifetime out of our batteries, which are not designed for "deep
> > >> discharge".  Unfortunately, it's less expensive to purchase commodity
> > >> batteries more often than to purchase deep discharge batteries once.
>
> > >>         Frank P.- Hide quoted text -
>
> - Show quoted text -
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[TANKS] Re: T062 Designated

[Joker]

Thats funny, because thats the same idea i have been trying to use.
It's working less than perfect, but let me know if you have better
luck getting it to work.  Mine might just be the less than perfect
circles i cut.  I was wondering if maybe someone else's idea would
work better.

Looks good though.

Jeremy

Matt wrote:
> I don't think they are from reinforced rubber, but I bought a 4x8
> sheet of 1/8inch rubber and cut it into sheets. I think it cost around
> 40-50 dollars. TONS left over.
>
>-Matt
>
> On Nov 13, 11:07�pm, james <[EMAIL PROTECTED]> wrote:
> > Hay Matt
> > �I'd like to say that's a very neat job on your tank.
> >
> > Your tracks Are thay made from strait rubber or renforced rubber.
> >
> > What is the thickness of it
> >
> > Hope you understand my writting
> > James
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[TANKS] Re: T062 Designated

[Matt]

I don't think they are from reinforced rubber, but I bought a 4x8
sheet of 1/8inch rubber and cut it into sheets. I think it cost around
40-50 dollars. TONS left over.

   -Matt

On Nov 13, 11:07 pm, james <[EMAIL PROTECTED]> wrote:
> Hay Matt
>  I'd like to say that's a very neat job on your tank.
>
> Your tracks Are thay made from strait rubber or renforced rubber.
>
> What is the thickness of it
>
> Hope you understand my writting
> James
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[TANKS] Shapelock

[Michael Clark]

I used this recently to build an Arc Reactor for a costume. But after
playing with it I found it to be a very tough plastic when cooled.

It would probably melt on a hot day outside, but it could be used to
prototype parts.

http://shapelock.com/

A competing product is called friendly plastic.

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[TANKS] Re: Battery question

[Crooks, Steven M]

No, but how is this:

http://www.crabfu.com/steamtoys/rc_steam_turbine_tank/

Steven C.

-Original Message-
From: rctankcombat@googlegroups.com [mailto:[EMAIL PROTECTED] On Behalf Of 
Steve Tyng
Sent: Friday, November 14, 2008 10:59 AM
To: R/C Tank Combat
Subject: [TANKS] Re: Battery question


Lead acid batteries suck.  I want to build a fuel cell f or the
Cromwell.  Anybody have any Gas Diffusion Electrode material (also
known as an Air Cathode) laying around?

Steve





On Nov 14, 10:56 am, "Derek Engelhaupt" <[EMAIL PROTECTED]> wrote:
> These are all the reasons I installed the battery meter in the back of
> the Sturmtiger coping Steve T's idea.  It's not an exact voltage
> reading, but it gives me a good idea of the state of the charge in the
> batteries (SLAs).
>
> Derek
>
> On Fri, Nov 14, 2008 at 9:53 AM, Cold comfort <[EMAIL PROTECTED]> wrote:
>
> > Thanks for the info, its been very helpful.
> > Greg
>
> > On Nov 14, 11:40 am, Frank Pittelli <[EMAIL PROTECTED]> wrote:
> >> Chrysanthos Kanellopoulos wrote:
> >> > Good you pointed out Frank, so what is the voltage of a lead 12 Volt 
> >> > battery
> >> > after say the end of a battle, when it's too weak and the motors don't 
> >> > spin
> >> > anymore?
>
> >> Probably down around 10v or so.  That's why we don't get a "full"
> >> lifetime out of our batteries, which are not designed for "deep
> >> discharge".  Unfortunately, it's less expensive to purchase commodity
> >> batteries more often than to purchase deep discharge batteries once.
>
> >>         Frank P.
>
>







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[TANKS] Re: Battery question

[Steve Tyng]

Lead acid batteries suck.  I want to build a fuel cell f or the
Cromwell.  Anybody have any Gas Diffusion Electrode material (also
known as an Air Cathode) laying around?

Steve





On Nov 14, 10:56 am, "Derek Engelhaupt" <[EMAIL PROTECTED]> wrote:
> These are all the reasons I installed the battery meter in the back of
> the Sturmtiger coping Steve T's idea.  It's not an exact voltage
> reading, but it gives me a good idea of the state of the charge in the
> batteries (SLAs).
>
> Derek
>
> On Fri, Nov 14, 2008 at 9:53 AM, Cold comfort <[EMAIL PROTECTED]> wrote:
>
> > Thanks for the info, its been very helpful.
> > Greg
>
> > On Nov 14, 11:40 am, Frank Pittelli <[EMAIL PROTECTED]> wrote:
> >> Chrysanthos Kanellopoulos wrote:
> >> > Good you pointed out Frank, so what is the voltage of a lead 12 Volt 
> >> > battery
> >> > after say the end of a battle, when it's too weak and the motors don't 
> >> > spin
> >> > anymore?
>
> >> Probably down around 10v or so.  That's why we don't get a "full"
> >> lifetime out of our batteries, which are not designed for "deep
> >> discharge".  Unfortunately, it's less expensive to purchase commodity
> >> batteries more often than to purchase deep discharge batteries once.
>
> >>         Frank P.
>
>
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[TANKS] Re: Battery question

[Derek Engelhaupt]

These are all the reasons I installed the battery meter in the back of
the Sturmtiger coping Steve T's idea.  It's not an exact voltage
reading, but it gives me a good idea of the state of the charge in the
batteries (SLAs).

Derek

On Fri, Nov 14, 2008 at 9:53 AM, Cold comfort <[EMAIL PROTECTED]> wrote:
>
> Thanks for the info, its been very helpful.
> Greg
>
> On Nov 14, 11:40 am, Frank Pittelli <[EMAIL PROTECTED]> wrote:
>> Chrysanthos Kanellopoulos wrote:
>> > Good you pointed out Frank, so what is the voltage of a lead 12 Volt 
>> > battery
>> > after say the end of a battle, when it's too weak and the motors don't spin
>> > anymore?
>>
>> Probably down around 10v or so.  That's why we don't get a "full"
>> lifetime out of our batteries, which are not designed for "deep
>> discharge".  Unfortunately, it's less expensive to purchase commodity
>> batteries more often than to purchase deep discharge batteries once.
>>
>> Frank P.
> >
>

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[TANKS] Re: Battery question

[Cold comfort]

Thanks for the info, its been very helpful.
Greg

On Nov 14, 11:40 am, Frank Pittelli <[EMAIL PROTECTED]> wrote:
> Chrysanthos Kanellopoulos wrote:
> > Good you pointed out Frank, so what is the voltage of a lead 12 Volt battery
> > after say the end of a battle, when it's too weak and the motors don't spin
> > anymore?
>
> Probably down around 10v or so.  That's why we don't get a "full"
> lifetime out of our batteries, which are not designed for "deep
> discharge".  Unfortunately, it's less expensive to purchase commodity
> batteries more often than to purchase deep discharge batteries once.
>
>         Frank P.
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[TANKS] Re: Battery question

[Frank Pittelli]

Chrysanthos Kanellopoulos wrote:
> Good you pointed out Frank, so what is the voltage of a lead 12 Volt battery
> after say the end of a battle, when it's too weak and the motors don't spin
> anymore?

Probably down around 10v or so.  That's why we don't get a "full" 
lifetime out of our batteries, which are not designed for "deep 
discharge".  Unfortunately, it's less expensive to purchase commodity 
batteries more often than to purchase deep discharge batteries once.

Frank P.

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[TANKS] Re: Battery question

[Frank Pittelli]

Cold comfort wrote:
> Hi everyone, the electical dept is not a strong point of mine so I
> would like to ask the following, I have two 12v 17ah batteries wired
> for 24v , when I go to charge it I unhook the wires so that it is two
> 12v batteries again because I only have a 12v charger. When I do this
> and I test the before charge voltage, both batteries give me different
> readings, a difference of 1 to 2v , should they not discharge evenly?

When connected in series, the two batteries will discharge at rates 
proportional to their internal resistances.  In fact, the 2 volt cells 
in each battery will also discharge at rates proportional to their 
internal resistance as well.  With two new batteries, the resistances 
are relatively the same, so discharge is the same.  As they wear down, 
the difference in resistance increases, as does the discharge rates.

> Also, what voltage should a 24v battery drop to before needing a
> recharge?

A normal 12v battery should be recharged when it reaches 11.8v, which is 
roughly 1v below it's fully charged value of 12.8v.  So, a 24v battery 
needs to be recharged after it drops 2v.  Note, when reading a battery 
you really need to put a load across it to get a meaningful reading. 
With just a voltmeter attached, the battery can show a high voltage even 
though it can't carry a proper load.

Get yourself a heavy duty 1-2 ohm resistor and measure the voltage when 
it is connected across the battery to get a better "loaded" voltage 
reading.  I have a "blue box" that contains a load resistor, momentary 
switch, digital voltmeter, 10A analog meter and two connectors (in, 
out).  I can use the box separately to measure the voltage with/without 
load and also put it inline with motors to measure their amp draw.

Frank P.

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[TANKS] Re: Battery question

[Chrysanthos Kanellopoulos]

Good you pointed out Frank, so what is the voltage of a lead 12 Volt battery
after say the end of a battle, when it's too weak and the motors don't spin
anymore?
Chrys


- Original Message -
From: "Frank Pittelli" <[EMAIL PROTECTED]>
To: 
Sent: Friday, November 14, 2008 5:04 PM
Subject: [TANKS] Re: Battery question


>
> Chrysanthos Kanellopoulos wrote:
> > i am told, at least for Ni CAD / NiMH batteries, that it is best to
> > discharge them  completely, before charging them, and it is best to do
it
> > with a little 12 V light bulb- not a quick discharge like wiring them to
a
> > motor, for example.
> >  Three cycles of slow discharge and charge will increase life and
overall
> > performance and perhaps you won't have these incosistencies.
>
> That discharging/charging regime *only* applies to NiCad/NiMH batteries.
>   You should *never* discharge a lead acid battery to zero or even down
> to 11v without causing permanent damage.
>
> Frank P.
>
>
> >
>
>
> __ NOD32 3434 (20080911) Information __
>
> This message was checked by NOD32 antivirus system.
> http://www.eset.com
>
>


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[TANKS] Re: Battery question

[Mike Mangus]

 Actually, you don't have to charge/discharge NiMH either.  They do not 
develope a memory like Nicads do.  :)

Mike M





From: Frank Pittelli <[EMAIL PROTECTED]>
To: rctankcombat@googlegroups.com
Sent: Saturday, November 15, 2008 12:04:28 AM
Subject: [TANKS] Re: Battery question


Chrysanthos Kanellopoulos wrote:
> i am told, at least for Ni CAD / NiMH batteries, that it is best to
> discharge them  completely, before charging them, and it is best to do it
> with a little 12 V light bulb- not a quick discharge like wiring them to a
> motor, for example.
>  Three cycles of slow discharge and charge will increase life and overall
> performance and perhaps you won't have these incosistencies.

That discharging/charging regime *only* applies to NiCad/NiMH batteries. 
  You should *never* discharge a lead acid battery to zero or even down 
to 11v without causing permanent damage.

Frank P.




  
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[TANKS] Re: Battery question

[Frank Pittelli]

Chrysanthos Kanellopoulos wrote:
> i am told, at least for Ni CAD / NiMH batteries, that it is best to
> discharge them  completely, before charging them, and it is best to do it
> with a little 12 V light bulb- not a quick discharge like wiring them to a
> motor, for example.
>  Three cycles of slow discharge and charge will increase life and overall
> performance and perhaps you won't have these incosistencies.

That discharging/charging regime *only* applies to NiCad/NiMH batteries. 
  You should *never* discharge a lead acid battery to zero or even down 
to 11v without causing permanent damage.

Frank P.


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[TANKS] Re: Battery question

[Chrysanthos Kanellopoulos]

i am told, at least for Ni CAD / NiMH batteries, that it is best to
discharge them  completely, before charging them, and it is best to do it
with a little 12 V light bulb- not a quick discharge like wiring them to a
motor, for example.
 Three cycles of slow discharge and charge will increase life and overall
performance and perhaps you won't have these incosistencies.

Chrys

- Original Message -
From: "Cold comfort" <[EMAIL PROTECTED]>
To: "R/C Tank Combat" 
Sent: Friday, November 14, 2008 4:23 PM
Subject: [TANKS] Battery question


>
> Hi everyone, the electical dept is not a strong point of mine so I
> would like to ask the following, I have two 12v 17ah batteries wired
> for 24v , when I go to charge it I unhook the wires so that it is two
> 12v batteries again because I only have a 12v charger. When I do this
> and I test the before charge voltage, both batteries give me different
> readings, a difference of 1 to 2v , should they not discharge evenly?
> Also, what voltage should a 24v battery drop to before needing a
> recharge? I know this last question is highly variable and a lot of
> factors would come into play, but what have those of you who run 24v
> getting down too when the battries need charging on average? Any info
> would help.
> Thanks, Greg
> >
>
>
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>


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[TANKS] Battery question

[Cold comfort]

Hi everyone, the electical dept is not a strong point of mine so I
would like to ask the following, I have two 12v 17ah batteries wired
for 24v , when I go to charge it I unhook the wires so that it is two
12v batteries again because I only have a 12v charger. When I do this
and I test the before charge voltage, both batteries give me different
readings, a difference of 1 to 2v , should they not discharge evenly?
Also, what voltage should a 24v battery drop to before needing a
recharge? I know this last question is highly variable and a lot of
factors would come into play, but what have those of you who run 24v
getting down too when the battries need charging on average? Any info
would help.
Thanks, Greg
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[TANKS] Re: measurements for wills su 100

[Cchris577]

i was concidering my track styem and i was wondering if any one has
any exsperiance of hinged tracks pos and cons sort of thing??


On Nov 14, 7:51 am, [EMAIL PROTECTED] wrote:
> wow i didn't think there would be such a large reasponse but ive got
> most of the measurements i need only one or two iam missing which ill
> ask about later
>
> p.s thanks for the help
>
> On Nov 14, 7:16 am, james <[EMAIL PROTECTED]> wrote:
>
>
>
> > The su100 dose have the same bottom as the t34.
> > They were produced on the it in a hurry.
> > I've both models in 1/35 scale.
> > That saved me  having to make a bifferent mold
> > I only had to make a top hull.
> > I'm planning to make more molds if I can find a good models
> > JS2-SU152
> > my hopes rose when my son gave a tank kit.
> > But it was a KV1.
> > still I mite make that too.- Hide quoted text -
>
> - Show quoted text -
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