The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

In article ,
wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery goes?

--
*Change is inevitable, except from a vending machine.

Dave Plowman London SW
To e-mail, change noise into sound.

On Sunday, December 6, 2015 at 2:27:45 PM UTC, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I'd push you towards a 14.4V cordless jigsaw.
Firstly vehicle electrics when the alternator is running are at 14.4V not 12V. This is not the main point.
You'd be better of charging the battery the using the tool rather than run it directly off the power power charger, but you could probably make up something with a lead and an old battery pack for the tool.
I'd recommend a jigsaw as far more versatile and much less likely to cause serious collateral/accidental damage to other things than a circular saw.

This advice is worth ignoring if you so desire.

E

In article ,
Dave Plowman (News) wrote:
In article ,
wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This
is likely to be the only use for it so required depth of cut is only
25mm, and quality doesn't matter as long as it will do the job. 12V
would be good because then I could run it from the car if the battery
died, although something designed to run between 10.8V and 18V would
probably do the job well enough. Any suggestions?

I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery goes?

I havea Ryobi battery drill. There is in their range a battery charger that
runs off a car battery.

--
Please note new email address:

On 06/12/2015 14:27, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

Roof rack or roof bars? An 8x4 will fit on a medium sized estate car.

In article ,
newshound wrote:
On 06/12/2015 14:27, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

Roof rack or roof bars? An 8x4 will fit on a medium sized estate car.

but it's advisable to buy some lengths of timber at the same time to help
secure the lot to the roof rack. You don't want aerofoil lift on the ply.
Thin ply will snap - done it.

--
Please note new email address:

On 07/12/2015 09:18, charles wrote:
In article ,
newshound wrote:
On 06/12/2015 14:27, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

Roof rack or roof bars? An 8x4 will fit on a medium sized estate car.

but it's advisable to buy some lengths of timber at the same time to help
secure the lot to the roof rack. You don't want aerofoil lift on the ply.
Thin ply will snap - done it.

Agreed. And you need to apply a bit of common sense in fixing it all,
not overloading the rack, and keeping your speed down on the motorway.

I have a pair of 3 metre (unstretched) luggage elastics which let you do
more than three passes each. Having all that built-in "stretch" means
the tension is maintained even if there is some unplanned movement.

On 07/12/2015 09:08, newshound wrote:
On 06/12/2015 14:27, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

Roof rack or roof bars? An 8x4 will fit on a medium sized estate car.

Yup, I've done that several times in the past but an 8x4 of 18/25mm MDF
is heavy and I need to be able to do it single-handed ... there's also
the weather issue.

On 06/12/2015 19:11, Dave Plowman (News) wrote:
In article ,
wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery goes?


If it's a cheapie I'd be happy to solder a couple of wires or fit a
connector.

On 06/12/2015 19:43, wrote:
On Sunday, December 6, 2015 at 2:27:45 PM UTC, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I'd push you towards a 14.4V cordless jigsaw.
Firstly vehicle electrics when the alternator is running are at 14.4V not 12V. This is not the main point.
You'd be better of charging the battery the using the tool rather than run it directly off the power power charger, but you could probably make up something with a lead and an old battery pack for the tool.
I'd recommend a jigsaw as far more versatile and much less likely to cause serious collateral/accidental damage to other things than a circular saw.

This advice is worth ignoring if you so desire.

E

Thanks, but a circ saw with a saw board gives a far better cut than a
jigsaw so I'll stick with plan A.

Re voltage: lead-acid batteries used to be 2.2 V/cell so that would be
13.2V - has something changed? If needed, I could knock-up a linear reg
or SMPS but I must remember that this is supposed to be a quick and
simple solution to a problem rather than a project ;-)

On 07/12/15 10:20, wrote:
On 06/12/2015 19:43, wrote:
On Sunday, December 6, 2015 at 2:27:45 PM UTC, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I'd push you towards a 14.4V cordless jigsaw.
Firstly vehicle electrics when the alternator is running are at 14.4V
not 12V. This is not the main point.
You'd be better of charging the battery the using the tool rather than
run it directly off the power power charger, but you could probably
make up something with a lead and an old battery pack for the tool.
I'd recommend a jigsaw as far more versatile and much less likely to
cause serious collateral/accidental damage to other things than a
circular saw.

This advice is worth ignoring if you so desire.

E

Thanks, but a circ saw with a saw board gives a far better cut than a
jigsaw so I'll stick with plan A.

Re voltage: lead-acid batteries used to be 2.2 V/cell so that would be
13.2V - has something changed?

In general on-charge, a '12V' lead acid is reckoned to be around 13.8V.

If needed, I could knock-up a linear reg
or SMPS but I must remember that this is supposed to be a quick and
simple solution to a problem rather than a project ;-)

But no motor 'rated' for 12V is going to vanish in a puff of smoke at
14,4V or whatever.

14,4v is simply a 12 cell NIMH,. Which can be a lot higher anyway..

--
the biggest threat to humanity comes from socialism, which has utterly
diverted our attention away from what really matters to our existential
survival, to indulging in navel gazing and faux moral investigations
into what the world ought to be, whilst we fail utterly to deal with
what it actually is.

wrote:
On 06/12/2015 19:11, Dave Plowman (News) wrote:
In article ,
wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery goes?


If it's a cheapie I'd be happy to solder a couple of wires or fit a
connector.
That would be a better solution, no charger is likely to provide enough
current to run the saw. A saw with 2 battery packs would allow you to
sacrifice one to fit a lead (DON'T just connect to the battery as the
current won't be controlled) and use the other cordless as designed.

On 07/12/2015 10:29, The Natural Philosopher wrote:
On 07/12/15 10:20, wrote:
On 06/12/2015 19:43, wrote:
On Sunday, December 6, 2015 at 2:27:45 PM UTC, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car.
This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I'd push you towards a 14.4V cordless jigsaw.
Firstly vehicle electrics when the alternator is running are at 14.4V
not 12V. This is not the main point.
You'd be better of charging the battery the using the tool rather than
run it directly off the power power charger, but you could probably
make up something with a lead and an old battery pack for the tool.
I'd recommend a jigsaw as far more versatile and much less likely to
cause serious collateral/accidental damage to other things than a
circular saw.

This advice is worth ignoring if you so desire.

E

Thanks, but a circ saw with a saw board gives a far better cut than a
jigsaw so I'll stick with plan A.

Re voltage: lead-acid batteries used to be 2.2 V/cell so that would be
13.2V - has something changed?

In general on-charge, a '12V' lead acid is reckoned to be around 13.8V.

If needed, I could knock-up a linear reg
or SMPS but I must remember that this is supposed to be a quick and
simple solution to a problem rather than a project ;-)

But no motor 'rated' for 12V is going to vanish in a puff of smoke at
14,4V or whatever.

14,4v is simply a 12 cell NIMH,. Which can be a lot higher anyway..

Yes, the motor will be OK; any electronics would be slightly more
sensitive to overvoltage but still probably OK.

The immediate problem has just gone away because Jewsons (who have a
panel saw!) have agreed to price match Wickes. I've now got time to wait
for a suitable cheapie saw on feeBay.

On 07/12/2015 10:43, Bob Minchin wrote:
.... snipped
(DON'T just connect to the battery as the current won't be controlled)

Thanks for the warning but, although I've done a few dumb things in my
time, that's one thing I wouldn't have done.

In article ,
charles wrote:
I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery
goes?

I havea Ryobi battery drill. There is in their range a battery charger
that runs off a car battery.

But not runs off the car battery as the OP wants?

--
*A backward poet writes inverse.*

Dave Plowman London SW
To e-mail, change noise into sound.

In article , newshound
wrote:
On 07/12/2015 09:18, charles wrote:
In article ,
newshound wrote:
On 06/12/2015 14:27, wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I
can cut roughly to size in the car park and get the bits in the car.
This is likely to be the only use for it so required depth of cut is
only 25mm, and quality doesn't matter as long as it will do the job.
12V would be good because then I could run it from the car if the
battery died, although something designed to run between 10.8V and
18V would probably do the job well enough. Any suggestions?

Roof rack or roof bars? An 8x4 will fit on a medium sized estate car.

but it's advisable to buy some lengths of timber at the same time to
help secure the lot to the roof rack. You don't want aerofoil lift on
the ply. Thin ply will snap - done it.

Agreed. And you need to apply a bit of common sense in fixing it all,
not overloading the rack, and keeping your speed down on the motorway.

20mph - on a local A road.

I have a pair of 3 metre (unstretched) luggage elastics which let you do
more than three passes each. Having all that built-in "stretch" means
the tension is maintained even if there is some unplanned movement.

--
Please note new email address:

In article ,
Dave Plowman (News) wrote:
In article ,
charles wrote:
I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery
goes?

I havea Ryobi battery drill. There is in their range a battery charger
that runs off a car battery.

But not runs off the car battery as the OP wants?

agreed, but - since I have a spare battery - I can work for extended
periods away from any mains supply.

--
Please note new email address:

In article ,
wrote:
The immediate problem has just gone away because Jewsons (who have a
panel saw!) have agreed to price match Wickes. I've now got time to wait
for a suitable cheapie saw on feeBay.

Get the special offer emails from Lidl and Aldi. They both have such saws
on offer now and again. With a three year money back warranty. Much better
bet than an Ebay cheapie.

--
*WHERE DO FOREST RANGERS GO TO "GET AWAY FROM IT ALL?"

Dave Plowman London SW
To e-mail, change noise into sound.

On 07/12/2015 12:54, Dave Plowman (News) wrote:
In article ,
wrote:
The immediate problem has just gone away because Jewsons (who have a
panel saw!) have agreed to price match Wickes. I've now got time to wait
for a suitable cheapie saw on feeBay.

Get the special offer emails from Lidl and Aldi. They both have such saws
on offer now and again. With a three year money back warranty. Much better
bet than an Ebay cheapie.

That's very interesting - I'll subscribe. Thanks for the suggestion.

In message , Bob Minchin
writes
wrote:
On 06/12/2015 19:11, Dave Plowman (News) wrote:
In article ,
wrote:
The places with the best prices for MDF/ply sheets tend not to have
panel saws so I'm wondering about getting a cheap cordless saw so I can
cut roughly to size in the car park and get the bits in the car. This is
likely to be the only use for it so required depth of cut is only 25mm,
and quality doesn't matter as long as it will do the job. 12V would be
good because then I could run it from the car if the battery died,
although something designed to run between 10.8V and 18V would probably
do the job well enough.
Any suggestions?

I've not really seen any cordless tool you could easily run off a car
battery. You'd need some sort of plug to fit where the tool battery goes?


If it's a cheapie I'd be happy to solder a couple of wires or fit a
connector.
That would be a better solution, no charger is likely to provide enough
current to run the saw. A saw with 2 battery packs would allow you to
sacrifice one to fit a lead (DON'T just connect to the battery as the
current won't be controlled) and use the other cordless as designed.

since the OP's specified use was to cut up boards at the merchants, I'd
don't really see the need for all this talk of running it from the car.

Surely a battery or two for the saw is going to be sufficient for that?
--
Chris French

On Mon, 07 Dec 2015 17:24:07 +0000, Chris French wrote:

since the OP's specified use was to cut up boards at the merchants, I'd
don't really see the need for all this talk of running it from the car.

Surely a battery or two for the saw is going to be sufficient for that?

I'm just wondering what's wrong with a handsaw...