Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?


--
Michael Chare

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Michael Chare wrote:

Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Absolutely.

On Thursday, 1 September 2016 22:24:21 UTC+1, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Yes, but the linear cutter speed is way lower. WAY lower.


NT

On 01/09/16 22:24, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?



Not really. It will take a million years (I've tried cutting
plasterboard with a Fein).

On 02/09/2016 08:17, Tim Watts wrote:
On 01/09/16 22:24, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?



Not really. It will take a million years (I've tried cutting
plasterboard with a Fein).

I suppose that the dust level *might* be lower?

On 01/09/2016 22:24, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?


Depends also on the "plaster" being plaster. On Victorian walls which
have been much patched over the years I've had bits where even an angle
grinder with a diamond blade took its time

--
Robin
reply-to address is (intended to be) valid

Tim Watts wrote:

Michael Chare wrote:

Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Not really. It will take a million years

Sure you don't want to be doing many floor to ceiling chases, but I
found it very useful to e.g drop from ceiling to top of door opening for
cables to alarm contacts in uPVC frame.

On 9/2/2016 8:17 AM, Tim Watts wrote:
On 01/09/16 22:24, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?



Not really. It will take a million years (I've tried cutting
plasterboard with a Fein).

They are OK for cutting a hole in plasterboard to take a box. Not
particularly hard, not much dust. For chasing in plaster I would only
use them for the last couple of inches, into a corner, up to a ceiling,
or down to a skirting board. The bit you can't do with an angle grinder.

On 01/09/2016 22:24, Michael Chare wrote:
Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?


Wouldn't the appropriate channeling chisel in an SDS drill be better
than either?
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On 02/09/2016 12:01, Andy Burns wrote:
Tim Watts wrote:

Michael Chare wrote:

Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Not really. It will take a million years

Sure you don't want to be doing many floor to ceiling chases, but I
found it very useful to e.g drop from ceiling to top of door opening for
cables to alarm contacts in uPVC frame.


It was installing alarm system cables that I have in mind. Did you use
any small diameter trunking when you installed yours?


--
Michael Chare

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Michael Chare wrote:

It was installing alarm system cables that I have in mind. Did you use
any small diameter trunking when you installed yours?

No trunking, cable rodded within ceiling voids or behind coving then
dropped down in corner to PIRs or above door opening to magnetic contacts.

On Friday, 2 September 2016 19:17:08 UTC+1, Michael Chare wrote:
On 02/09/2016 12:01, Andy Burns wrote:
Tim Watts wrote:
Michael Chare wrote:

Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Not really. It will take a million years

Sure you don't want to be doing many floor to ceiling chases, but I
found it very useful to e.g drop from ceiling to top of door opening for
cables to alarm contacts in uPVC frame.


It was installing alarm system cables that I have in mind.

then you only need a small shallow chase. SDS + small chisel oughta do it.


NT

In article ,
Michael Chare wrote:
On 02/09/2016 12:01, Andy Burns wrote:
Tim Watts wrote:

Michael Chare wrote:

Will a Fein or other oscillating tool chase a plaster wall for a cable
without creating the levels of dust that an angle grinder would?

Not really. It will take a million years

Sure you don't want to be doing many floor to ceiling chases, but I
found it very useful to e.g drop from ceiling to top of door opening for
cables to alarm contacts in uPVC frame.


It was installing alarm system cables that I have in mind. Did you use
any small diameter trunking when you installed yours?

Personally for alarm cables I'd make as small a chase as practical then
make good directly over them. No safety issues there. And how often would
you need to replace them - the only real reason to use trunking.

--
*I'm not a paranoid, deranged millionaire. Dammit, I'm a billionaire.

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

On 03/09/2016 12:12, Dave Plowman (News) wrote:

Personally for alarm cables I'd make as small a chase as practical then
make good directly over them. No safety issues there. And how often would
you need to replace them - the only real reason to use trunking.


Is there a safety issue with mains?
The regs now say you bury them 50mm deep if no RCD or use an RCD and do
them shallower.
I assume its the same thinking as part P ...
make the cable deep enough that you can't detect it and you don't need
to worry about someone using a 65mm screw or if its shallow enough to
detect you need to make sure its safe.

You have to wonder if these people have ever done any wiring or DIY.

In article . com,
dennis@home wrote:
On 03/09/2016 12:12, Dave Plowman (News) wrote:

Personally for alarm cables I'd make as small a chase as practical
then make good directly over them. No safety issues there. And how
often would you need to replace them - the only real reason to use
trunking.


Is there a safety issue with mains?
The regs now say you bury them 50mm deep if no RCD or use an RCD and do
them shallower.
I assume its the same thinking as part P ...
make the cable deep enough that you can't detect it and you don't need
to worry about someone using a 65mm screw or if its shallow enough to
detect you need to make sure its safe.

You have to wonder if these people have ever done any wiring or DIY.

For alarm cables, I was assuming the usual 4 or 6 core alarm cable which
normally carries a maximum of 12v DC. And would not be suitable for mains
anyway. No need to protect it for safety reasons, so can be as close to
the surface as you want. Of course it could be damaged by a nail etc - but
then so could plastic trunking, and anything inside it.

--
*Broken pencils are pointless.*

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

I have used a Multitool with those diamond edged semi-circular blades to make capping wide chases for mains cables. The Multitool is much slower than an angle grinder but much less dust, it produces much neater edges to the chase and does not disturb slightly loose plaster too much. Once the edges of the chase are thus marked the rest Inbetween is simply chiselled out. I find this method produces neater chases and disturbs the plaster less.

Having once produced chases through tiles with an angle grinder I would never use one again for this type of job, the dust produced was horrific and in a matter of seconds in the confines of a bathroom I could not see what I was doing.

When putting some conduit up an outside wall of my daughters new build I was obliged to cut away some of the rough cast facing on the stonework to avoid bends in the conduit. I used the same tool and method, again much slower than an angle grinder but far more controllable.

Richard

Tricky Dicky writes:

I have used a Multitool with those diamond edged
semi-circular blades to make capping wide chases for mains
cables. The Multitool is much slower than an angle grinder
but much less dust, it produces much neater edges to the
chase and does not disturb slightly loose plaster too much.

For fairly fine plaster or plasterboard a multitool with a
coarse sawblade is much faster than a diamond or grit edge. It
blunts the blade very quickly, but that doesnt make much
difference. Still less messy than an angle grinder. Wont go
into brick, though.

--
Jón Fairbairn
http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html (updated 2014-04-05)

In article . com,
dennis@home writes:
On 03/09/2016 12:12, Dave Plowman (News) wrote:

Personally for alarm cables I'd make as small a chase as practical then
make good directly over them. No safety issues there. And how often would
you need to replace them - the only real reason to use trunking.


Is there a safety issue with mains?
The regs now say you bury them 50mm deep if no RCD or use an RCD and do
them shallower.
I assume its the same thinking as part P ...
make the cable deep enough that you can't detect it and you don't need
to worry about someone using a 65mm screw or if its shallow enough to
detect you need to make sure its safe.

You have to wonder if these people have ever done any wiring or DIY.

You can't chase 50mm deep in many domestic walls without
compromising their stability too much.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On Sunday, 4 September 2016 11:35:06 UTC+1, Andrew Gabriel wrote:
You can't chase 50mm deep in many domestic walls without
compromising their stability too much.

Wouldn't most of the stability be regained once the chase is filled in again?

Owain