dd

"david"

29/05/2006 7:44 AM

12 volt wood saw ideas ?

Looking to convert my large trailer into a mobile pallet recycling
(into fuel) operation for next autumn (GB). Want the saw to run off car
battery so any ideas/experience for

1) converting battery saw e.g. deWalt
2) putting a 12 volt motor onto bandsaw
3) something i have not thought about

Chainsaw is not an option

Regards
David


This topic has 40 replies

Rr

"RicodJour"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 9:08 AM

david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for

Fuel for what?

R

j

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 10:40 AM


david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David

Add a deep discharge battery to your car or van and get a 1000W
inverter. Run your circular saw off that. My tuppence worth .....

hw

"hylourgos"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 11:56 AM


david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David

Handsaw, crowbar and small sledge hammer? Or buy an 18v cordless
sawzall and a mess of batteries that you can recycle in the evenings.

I know that not an innovative solution, but the hand tools are not much
slower for demolition/recycling tasks. Good exercise too, and they fit
the whole "recycling" ethic well too boot.

H

Td

"Teamcasa"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 11:37 AM


"david" <[email protected]> wrote in message
news:[email protected]...
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David
>

Look in multiple batteries. Get the voltage up to 48v DC, (car batteries in
series-parallel) Several motors available that would do the job nicely.

Dave



Posted Via Usenet.com Premium Usenet Newsgroup Services
----------------------------------------------------------
** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
http://www.usenet.com

dd

"david"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 3:12 PM

Wow, that's a lot of ideas/considerations to think about.

To input some more info as i did not at first see as important. I have
been using pallets and reclaimed timber for my business for 5 years and
of course use the scrap in the stove. But now the output is increasing
and always looking to earn a bit more i have a plan to remove unwanted
pallets, saw up on site or around the corner to save time and fuel,
then sell as fuel in bags. I use a 240 v jigsaw in the workshop
normally in the initial 'cutting up' of pallets for my furniture but
have no experience of 12v saws as in battery type but thought one could
wire one to the car battery, (i have a large one for the trailer winch
and a chunky cable to supply same). If anybody has done this and it
works i would find this favorite.


Thanks for all your input so far.

f

in reply to "david" on 29/05/2006 7:44 AM

31/05/2006 12:28 PM


david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt

Circular or sawzall? There are battery versions for both.

I'd like to find a 'plug' that I could wire myself to do exactly that.
Otherwise, I suppose could make one from wood. A twelve-volt
car battery is used to putting out more amps than a saw draws.

> 2) putting a 12 volt motor onto bandsaw

Would it not be difficult to use a bandsaw for cutting up pallets?

> 3) something i have not thought about
>
> Chainsaw is not an option

I'm curious, why isn't an electric chainsaw an option? IMHO,
it is the ideal tool for hacking up pallets.

--

FF

dd

"david"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 9:35 AM


[email protected] wrote:
> david wrote:
> > Looking to convert my large trailer into a mobile pallet recycling
> > (into fuel) operation for next autumn (GB). Want the saw to run off car
> > battery so any ideas/experience for
> >
> > Chainsaw is not an option
>
> I'm curious, why isn't an electric chainsaw an option? IMHO,
> it is the ideal tool for hacking up pallets.
>
> --
>
> FF

Hello Fred

Just the oil, want to sell the wood so trying to keep it clean for the
customers. Plus as a woodworker i have a 'thing' about oil, not allowed
in the workshop, messes up everything.

f

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 11:53 AM


david wrote:
> [email protected] wrote:
> ...
>
> Hello Fred
>
> Just the oil, want to sell the wood so trying to keep it clean for the
> customers. Plus as a woodworker i have a 'thing' about oil, not allowed
> in the workshop, messes up everything.

There is a vegetable oil sold for chain saw use, both in the fuel
and for the chain. Not as messy or smelly as petroleum oil.

I don't remeber who sells it, but knew a fellow who preferred
it for use with his Alaskan chain saw mill as the geometry of
his outfit put the operator's face close to the exahust. He also
used a good respirator.

--

FF

dd

"david"

in reply to "david" on 29/05/2006 7:44 AM

06/06/2006 9:13 AM


[email protected] wrote:
> david wrote:
> > [email protected] wrote:
> > ...
> >
> There is a vegetable oil sold for chain saw use, both in the fuel
> and for the chain. Not as messy or smelly as petroleum oil.

>
> FF

Hello Fred
I like that idea, with an electric chainsaw you only need to lubricate.
Anyone used the 'ex deep fry oil' for this ?

Regards
David

f

in reply to "david" on 29/05/2006 7:44 AM

06/06/2006 9:40 AM


Edwin Pawlowski wrote:
>
> ...
>
> Just to comment on that, in most cases, yes you recycle to save energy. =
It
> is cheaper to meld down an aluminum can than to mine more of the material=
s=2E
> In the case of getting rid of pallets, it is not a question of saving
> energy, but getting rid of a stack of pallets that is a nuisance and an
> expense. Most people just want them gone. ...

Just wanted to comment that aluminum is an extreme case because
the process for reducing the metal from bauxite (the Hall-H=E9roult
process) uses a lot of electricity, in addition to the energy used to
melt the ore.

Steel has been routinely recycled since first wrought, and as noted
for virtually all metals remelting them is more energy efficient, and
cheaper overall than production from the ore.

--=20

FF

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 7:37 PM


"Edwin Pawlowski" <[email protected]> wrote in message
news:[email protected]...
>
> "todd" <[email protected]> wrote in message
>
>> bandsaw. Mike then made a statement regarding wanting to use less energy
>> than you're going to recover.
>
> Just to comment on that, in most cases, yes you recycle to save energy.
> It is cheaper to meld down an aluminum can than to mine more of the
> materials. In the case of getting rid of pallets, it is not a question of
> saving energy, but getting rid of a stack of pallets that is a nuisance
> and an expense. Most people just want them gone. I have at least 100 at
> any given time to get rid of at our warehouse. Some "standard" sizes are
> easily disposed of, but the odd ball, no one wants.
>
In Houston we always had people wanting to buy All of them. We had to keep
them out of sight until we had a few hundred or else we would spend time
every day loading 10 or 15 them up.

tt

"todd"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 4:15 PM

Well, he plans to use the car battery for power right now. Where do you
think the energy to charge that comes from?

todd

"Mike Berger" <[email protected]> wrote in message
news:[email protected]...
> In recycling you aim to use less energy than you're going to recover.
>
> Chris Friesen wrote:
>> david wrote:
>>
>>> Looking to convert my large trailer into a mobile pallet recycling
>>> (into fuel) operation for next autumn (GB). Want the saw to run off car
>>> battery so any ideas/experience for
>
>> What about putting a gas motor on your bandsaw/tablesaw? I've seen it
>> done.
>>
>> Chris

CF

Chris Friesen

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 9:40 AM

david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about

What about putting a gas motor on your bandsaw/tablesaw? I've seen it done.

Chris

Pp

Puckdropper

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 3:28 AM

"Tyke" <[email protected]> wrote in news:[email protected]:

*snip*

>
> Another consideration is the cost of blades. If you are cutting
> pallets, you may miss a nail or staple. If a blade was to be ruined
> by accidentally cutting metal, I think a bandsaw blade will be a
> cheaper replacement than a decent table saw blade - at least it is for
> me.
>
> My table saw blade cost me $90. My bandsaw blades cost me around $20.
>
> Dave Paine.
>

Are there bandsaw blades that can handle both wood and metal? I know
bandsaws are used for both purposes, but are the blades/speed the same?

That's another thing to consider.

Puckdropper
--
www.uncreativelabs.net

Old computers are getting to be a lost art. Here at Uncreative Labs, we
still enjoy using the old computers. Sometimes we want to see how far a
particular system can go, other times we use a stock system to remind
ourselves of what we once had.

To email me directly, send a message to puckdropper (at) fastmail.fm

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 1:55 PM


"todd" <[email protected]> wrote in message
news:[email protected]...
> Please post the efficiencies of a dedicated generator and a car/alternator
> setup.
>
> todd


First you would have to compare apples to apples. Most any automobile
engine runs more efficiently than your typical portable dedicated generator
engine. Any you could probably run 15 alternators on an automobile engine
if that was all that was expected out of the engine.

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 1:59 PM


"Wood Butcher" <[email protected]> wrote in message
news:[email protected]...

>
> Don't delude yourself into green/energy-savings trap. If you
> charge the batteries using gasoline in any form, you're better off
> efficiency wise with the generator.


Ironically the Green energy hybrid automobiles with the huge battery arrays
that are suppose to pollute less really don't. They pollute worse in a
different way. Those toxic batteries have to be disposed of every 60-75
thousand miles and that is a nasty problem.
I am shocked that California allows these cars to be sold there.

tt

"todd"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 6:35 PM

"Leon" <[email protected]> wrote in message
news:[email protected]...
>
> "todd" <[email protected]> wrote in message
> news:[email protected]...
>> Please post the efficiencies of a dedicated generator and a
>> car/alternator setup.
>>
>> todd
>
>
> First you would have to compare apples to apples. Most any automobile
> engine runs more efficiently than your typical portable dedicated
> generator engine. Any you could probably run 15 alternators on an
> automobile engine if that was all that was expected out of the engine.

Fine. I'm just asking for the numbers. You seem to know it's the case, so
pulling some numbers with a source should be no problem.

todd

MJ

Mark & Juanita

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 12:29 PM

On 29 May 2006 07:44:39 -0700, "david" <[email protected]> wrote:

>Looking to convert my large trailer into a mobile pallet recycling
>(into fuel) operation for next autumn (GB). Want the saw to run off car
>battery so any ideas/experience for
>
>1) converting battery saw e.g. deWalt
>2) putting a 12 volt motor onto bandsaw
>3) something i have not thought about
>
>Chainsaw is not an option
>
>Regards
>David

Given that you have a large trailer, would you be better off picking up
the pallets,hauling them to a home shop where you can a) work inside, b)
have your tools set up to run off the power for which they were designed,
and c) have your tools set up to efficiently process said pallets? Might
actually be more efficient that way than hauling the tools to the sites.



+--------------------------------------------------------------------------------+

If you're gonna be dumb, you better be tough

+--------------------------------------------------------------------------------+

Tt

"Tyke"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 12:48 PM

I would not recommend trying to run a decent size saw or bandsaw on 12V.

Think of the large cables you will need. Consider a 1 HP motor. Small for
a table saw, not considered small for a bandsaw.

1 HP = 745 Watts (Volts x Amps). Accounting for motor efficiency, you could
be looking at needing to run cables which can take 70 Amps. If you
undersize the cables, you starve the motor and will cause something to fail
or burn.

I recommend you buy a small portable generator. I do not know about the UK,
but in the US there are many sizes and brands available. The less expensive
will not last as long and have more noise.

At least this way you can use whatever motor is on the saw/bandsaw and may
also use the generator for lighting.

If all you are doing is cutting up pallets, I would go for a bandsaw as
requiring less power for a given cut thickness, due to far fewer teeth
cutting compared to table saw.

I have a 1 1/2 HP table saw and it really slows down when cutting 8/4 maple.
I used to have a 3/4 HP bandsaw which was able to cut the maple without a
problem (assuming the blade was not dull). I now have a 2 HP bandsaw and as
expected it can cut 8/4 maple even better than the smaller unit.

Another consideration is the cost of blades. If you are cutting pallets,
you may miss a nail or staple. If a blade was to be ruined by accidentally
cutting metal, I think a bandsaw blade will be a cheaper replacement than a
decent table saw blade - at least it is for me.

My table saw blade cost me $90. My bandsaw blades cost me around $20.

Dave Paine.

"david" <[email protected]> wrote in message
news:[email protected]...
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David
>

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 2:13 PM


"Wood Butcher" <[email protected]> wrote in message
news:[email protected]...
> If you're going to get some enjoyment or satisfaction out of
> doing the conversion/modifications, that's one thing.
>
> If it were me I wouldn't bother with all the fuss. I'd just buy a
> generator and use whatever 120/220 tools I had available and
> still have the generator for other use too. But that's just me.


Or get an after market alternator for your car that puts out 120 volts.
Actually automobile alternators produce A/C current and the internal
rectifier bridge converts the current to D/C. IIRC one of the Pontiac SUV's
has 120 outlets.

tt

"todd"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 3:36 AM

"Leon" <[email protected]> wrote in message
news:[email protected]...
>
> "todd" <[email protected]> wrote in message
> news:[email protected]...
>
>> Fine. I'm just asking for the numbers. You seem to know it's the case,
>> so pulling some numbers with a source should be no problem.
>>
>> todd
>>
> I agree that pulling the numbers should be no problem, I suggest that if
> the numbers are that important to you, do a Google search and or request
> this information from the manufacturers.

You made the statement. If you can't or don't want to back it up, that's
fine. I'll just consider it BS for now.

todd

WB

"Wood Butcher"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 1:16 PM

If you're going to get some enjoyment or satisfaction out of
doing the conversion/modifications, that's one thing.

If it were me I wouldn't bother with all the fuss. I'd just buy a
generator and use whatever 120/220 tools I had available and
still have the generator for other use too. But that's just me.

Don't delude yourself into green/energy-savings trap. If you
charge the batteries using gasoline in any form, you're better off
efficiency wise with the generator.

Art

"david" <[email protected]> wrote in message
news:[email protected]...
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David
>

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

01/06/2006 2:10 PM


<[email protected]> wrote in message
news:[email protected]...
>
> david wrote:
>> Looking to convert my large trailer into a mobile pallet recycling
>> (into fuel) operation for next autumn (GB). Want the saw to run off car
>> battery so any ideas/experience for
>>
>> 1) converting battery saw e.g. deWalt
>
> Circular or sawzall? There are battery versions for both.
>
> I'd like to find a 'plug' that I could wire myself to do exactly that.
> Otherwise, I suppose could make one from wood. A twelve-volt
> car battery is used to putting out more amps than a saw draws.

True, however only for "very" short bursts at a time.




Cc

"CW"

in reply to "david" on 29/05/2006 7:44 AM

02/06/2006 2:19 AM


"Leon" <[email protected]> wrote in message
news:[email protected]...
>
> "Wood Butcher" <[email protected]> wrote in message
> news:[email protected]...
>
> >
> > Don't delude yourself into green/energy-savings trap. If you
> > charge the batteries using gasoline in any form, you're better off
> > efficiency wise with the generator.
>
>
> Ironically the Green energy hybrid automobiles with the huge battery
arrays
> that are suppose to pollute less really don't. They pollute worse in a
> different way. Those toxic batteries have to be disposed of every 60-75
> thousand miles and that is a nasty problem.
> I am shocked that California allows these cars to be sold there.
>
>

Common sense will never get in the way of a good Californian.

EP

"Edwin Pawlowski"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 6:13 PM


"david" <[email protected]> wrote in message
> battery so any ideas/experience for


> 3) something i have not thought about

Generator. I doubt a 12V saw is going to give the power and endurance you
need.

EP

"Edwin Pawlowski"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 3:43 AM


"Puckdropper" <[email protected]> wrote in message
>
> Are there bandsaw blades that can handle both wood and metal? I know
> bandsaws are used for both purposes, but are the blades/speed the same?
>
> That's another thing to consider.

Metal saws turn slower and use finer tooth blades. You can cut (slowly)
wood on a metal saw easier than cutting metal on a wood saw. There are a
couple of dual speeds but I don't know if they are acceptable for both.

LH

Lew Hodgett

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 3:16 PM

david wrote:
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option


I like option 2.

Lew

tt

"todd"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 1:15 PM


"Leon" <[email protected]> wrote in message
news:[email protected]...
>
> "todd" <[email protected]> wrote in message
> news:[email protected]...
>
>>
>> You made the statement. If you can't or don't want to back it up, that's
>> fine. I'll just consider it BS for now.
>>
>> todd
>>
> Actually, if you reread this part of the thread I think you will realize
> that you are wanting us to look numbers up for a scenario that you dreamed
> up.
>
> Chris commented about putting a Gasoline engine on the Band Saw instead of
> running it on 12 volts.
>
> Mike commented, In recycling you aim to use less energy than you're going
> to recover. Basically I believe that he was hinting be sure that using a
> gasoline engine on a Band Saw for energy does not cost more that what your
> benefit.
>
> Then you out of the blue restate the obvious that the OP plans to use
> the car battery and ask where the energy comes from?
>
> Certainly not from a gasoline engine mounted on a band saw.
>
> Then Mike agrees with you that charging the battery would be more
> efficient than using a small gasoline engine to power the Band Saw.
>
> Then you request, Please post the efficiencies of a dedicated generator
> and a car/alternator
> setup.
>
> Where did the dedicated generator come into the equation?? No one had
> mentioned a dedicated generator up to this point.
>
> Anyway, I went off on that tangent with you and indicated what my
> experience has been with small generators and automobile engines and
> alternators.
>
> Than you still again want someone to do your foot work to get numbers for
> a scenario that you dreamed up.

Apparently, you've found some benefit to sway me, since you've replied twice
to my last message. Chris posted earlier about putting a gas motor on a
bandsaw. Mike then made a statement regarding wanting to use less energy
than you're going to recover. I took that to mean that he thought it would
be better to use an electric motor rather than a gasoline motor. My
original point was that with the proposed setup, one way or the other, the
energy is coming from gasoline. I'll admit that in Mike's subsequent post,
when he said "gasoline powered engine", I read it as a generator setup,
which was my mistake. I'll retract my subsequent questions regarding
efficiencies, which will negate the need for your anecdotal evidence.

todd

aa

"andypack"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 11:35 AM

---------
Looking to convert my large trailer into a mobile pallet recycling (into
fuel) operation for next autumn (GB). Want the saw to run off car battery
so any ideas/experience for
---------


Hi David,

Please, do yourself a favor, use a deep cycle battery to operate your saw,
NOT your car battery! You will kill your car battery in no time by
discharging it often by more than 20%. A car battery is designed for a
very large current supply for the short duration of an engine start, which
actually uses only 5% of the battery energy capacity in regular conditions.
The battery gets recharged back immediately when the engin is running. It
is not designed to be discharged!

A deep cycle battery has a different plate construction and is meant to
supply a smaller current and be discharged by 80% for 200 to 300 cycles.
By using a battery isolator, you could rechage (partly, maybe) the battery
while driving back home.

Car starting batteries have the bad habit of dying suddenly and leaving
you stranded in the wrong place. Please do some research on deep cycle
batteries and the best ways to prolong their life.

Good luck!

Andre

MB

Mike Berger

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 12:30 PM

In recycling you aim to use less energy than you're going to recover.

Chris Friesen wrote:
> david wrote:
>
>> Looking to convert my large trailer into a mobile pallet recycling
>> (into fuel) operation for next autumn (GB). Want the saw to run off car
>> battery so any ideas/experience for

> What about putting a gas motor on your bandsaw/tablesaw? I've seen it
> done.
>
> Chris

MB

Mike Berger

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 12:14 PM

I'm sure he can charge it more efficiently than by using a small
gasoline powered engine.

todd wrote:
> Well, he plans to use the car battery for power right now. Where do you
> think the energy to charge that comes from?
>

JC

"J. Clarke"

in reply to "david" on 29/05/2006 7:44 AM

12/06/2006 2:39 PM

Leon wrote:

>
> "todd" <[email protected]> wrote in message
> news:[email protected]...
>>
>> You made the statement. If you can't or don't want to back it up, that's
>> fine. I'll just consider it BS for now.
>
> If that makes you happy. There is no benefit to me to sway you one way or
> the other.

However if you are going to make an assertion that on the face of it seems
unlikely (a 200 horsepower engine running at near idle to provide the
couple of horsepower necessary to run a bandsaw is _not_ going to be more
efficient than 2 horsepower engine running full throttle unless that 2
horse has something badly wrong with it) and then not support it then the
rest of us will decide that you are a loon.

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

JC

"J. Clarke"

in reply to "david" on 29/05/2006 7:44 AM

12/06/2006 2:45 PM

david wrote:

> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option

Why not just use a cordless saw? There are vehicle chargers available for
most systems.


--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

EP

"Edwin Pawlowski"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 6:45 PM


"todd" <[email protected]> wrote in message

> bandsaw. Mike then made a statement regarding wanting to use less energy
> than you're going to recover.

Just to comment on that, in most cases, yes you recycle to save energy. It
is cheaper to meld down an aluminum can than to mine more of the materials.
In the case of getting rid of pallets, it is not a question of saving
energy, but getting rid of a stack of pallets that is a nuisance and an
expense. Most people just want them gone. I have at least 100 at any given
time to get rid of at our warehouse. Some "standard" sizes are easily
disposed of, but the odd ball, no one wants.

LM

"Lee Michaels"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 7:18 PM


"david" <[email protected]> wrote in message
news:[email protected]...
> Wow, that's a lot of ideas/considerations to think about.
>
> To input some more info as i did not at first see as important. I have
> been using pallets and reclaimed timber for my business for 5 years and
> of course use the scrap in the stove. But now the output is increasing
> and always looking to earn a bit more i have a plan to remove unwanted
> pallets, saw up on site or around the corner to save time and fuel,
> then sell as fuel in bags. I use a 240 v jigsaw in the workshop
> normally in the initial 'cutting up' of pallets for my furniture but
> have no experience of 12v saws as in battery type but thought one could
> wire one to the car battery, (i have a large one for the trailer winch
> and a chunky cable to supply same). If anybody has done this and it
> works i would find this favorite.
>
>
I used to have a 12 volt chainsaw for off road use. I had a marine, deep
discharge battery in back of the SUV which I kept charged up. The chainsaw
was used for cutting trees across the road and a little firewood for the
campfire.

One disadvantge of this set was that it required an absolutely huge cable.
DC needs this huge cable to move energy even a short distance. I liked it
because I did not have to mess with gasoline. But it was heavy with the
cable. And if you get very far from the vehicle, you are talking about a
lot of weight. And it is cumbersome to move those cables around. And the
cable takes up a lot of room in the vehicle as well.

I used to burn pallets for firewood. I just went to a small gas chainsaw. It
was a lot faster and lighter.




Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 5:46 PM


"todd" <[email protected]> wrote in message
news:[email protected]...

>
> You made the statement. If you can't or don't want to back it up, that's
> fine. I'll just consider it BS for now.
>
> todd
>
Actually, if you reread this part of the thread I think you will realize
that you are wanting us to look numbers up for a scenario that you dreamed
up.

Chris commented about putting a Gasoline engine on the Band Saw instead of
running it on 12 volts.

Mike commented, In recycling you aim to use less energy than you're going to
recover. Basically I believe that he was hinting be sure that using a
gasoline engine on a Band Saw for energy does not cost more that what your
benefit.

Then you out of the blue restate the obvious that the OP plans to use the
car battery and ask where the energy comes from?

Certainly not from a gasoline engine mounted on a band saw.

Then Mike agrees with you that charging the battery would be more efficient
than using a small gasoline engine to power the Band Saw.

Then you request, Please post the efficiencies of a dedicated generator and
a car/alternator
setup.

Where did the dedicated generator come into the equation?? No one had
mentioned a dedicated generator up to this point.

Anyway, I went off on that tangent with you and indicated what my experience
has been with small generators and automobile engines and alternators.

Than you still again want someone to do your foot work to get numbers for a
scenario that you dreamed up.


Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

02/06/2006 1:38 PM


"todd" <[email protected]> wrote in message
news:[email protected]...

> Fine. I'm just asking for the numbers. You seem to know it's the case,
> so pulling some numbers with a source should be no problem.
>
> todd
>
I agree that pulling the numbers should be no problem, I suggest that if the
numbers are that important to you, do a Google search and or request this
information from the manufacturers.

ss

"sweetsawdust"

in reply to "david" on 29/05/2006 7:44 AM

29/05/2006 10:18 AM

How about using an inverter to change the voltage? you could run some of
you corded tools off of it and use it to recharge batteries for the battery
operated one. No jury rigging tool that way.
"david" <[email protected]> wrote in message
news:[email protected]...
> Looking to convert my large trailer into a mobile pallet recycling
> (into fuel) operation for next autumn (GB). Want the saw to run off car
> battery so any ideas/experience for
>
> 1) converting battery saw e.g. deWalt
> 2) putting a 12 volt motor onto bandsaw
> 3) something i have not thought about
>
> Chainsaw is not an option
>
> Regards
> David
>

tt

"todd"

in reply to "david" on 29/05/2006 7:44 AM

30/05/2006 7:21 PM

Please post the efficiencies of a dedicated generator and a car/alternator
setup.

todd

"Mike Berger" <[email protected]> wrote in message
news:[email protected]...
> I'm sure he can charge it more efficiently than by using a small
> gasoline powered engine.
>
> todd wrote:
>> Well, he plans to use the car battery for power right now. Where do you
>> think the energy to charge that comes from?
>>

Lr

"Leon"

in reply to "david" on 29/05/2006 7:44 AM

03/06/2006 5:21 PM


"todd" <[email protected]> wrote in message
news:[email protected]...
>
> You made the statement. If you can't or don't want to back it up, that's
> fine. I'll just consider it BS for now.

If that makes you happy. There is no benefit to me to sway you one way or
the other.


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