Re: Hot knife for HA conduit ...

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

Thanks, I had ... US 'sites say some use a 'knife, others a
router ... but, 'have to say, I was surprised by this ... one of the
plusses of ICF is speed, and 'would have thought a knife would have
been quicker, even without talikng into account clean-up time ...

'looks like we'll have to be a controllable power-supply, some
formable wire (maybe from Scientific Wire), some screw connectors,
and some wheels, to make our own device !   Maybe the power supply
would have other uses ... any thoughts (they don't get mentioned much
on this forum) ? !   Maybe mains' & a dimmer would be OK, if we were
careful (ouch) ? !

Chris


On 18 Sep 2007, at 09:17, Neil Ball wrote:

> Have you considered other approaches? Polarwall (A ICF supplier)
> suggest
> using a router to cut the channels, messy but does not require any
> specialist kit. Polystyrene also reacts with the plasticisers in
> the cable
> insulation making brittle with over time so all cabling need to be
> within
> suitable conduit.
>
>
>
> Neil B.
>
>
>
>   _____
>
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> Behalf Of
> Chris Hunter
> Sent: 17 September 2007 19:12
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Hot knife for HA conduit ...
>
>
>
> 'wondered if someone could recommend a good hot knife for cleanly
> cutting channels for conduit in polystyrene foam ... for the HA, we
> need to run lots of Cat-5 & power cables, and need a quick way of
> doing it before we plaster (most of our walls currently being
> polystyrene on the surface) ... 'thought it would be easy, but
> finding a suitable hot-wire / hot knife is proving impossible !
>
> Chris