Re: Cutting PVC trunking cleanly...

[Paul Gale <groups2@xxxxxxxxxxxxxxxx>]

Oh, and I've cut many bits of trunking with a manual (cheap) mitre saw
- I find that it can be pretty accurate, even with the cheap, rusty old
blade. Lubricating with WD40 could help too.

This is the type I have:

http://en.m.wikipedia.org/wiki/Miter_saw?wasRedirected=true


Paul.

On 13 Dec 2010, at 08:38, "Paul Gale" <groups2@xxxxxxx>
wrote:

> If you don't want to spend anything/much, you could always make up a
cutting guide/box.
>
> All you need is three bits of timber nailed/screwed together to form a
C section (just like the open trunking shape) and so that the trunking is
held securely. Then cut a 45 degree slot in the uprights.
>
> You then use this as a guide with your existing saw to cut nice neat
45 deg angles (or 90 deg angles with another slot). Pretty easy to make.
>
> You really need to make sure the saw is sharp though for best results
and has fine teeth / high teeth per inch.
>
> Paul.
>
> On 12 Dec 2010, at 23:27, "Phil Harris" <phil@xxxxxxx>
wrote:
>
>> I decided to take a shot at it today with my existing manual mitre
saw and I have to say it looks a bloody mess. :-)
>>
>> Obviously my old mitre saw has enough slop in it to completely
arse up even a basic 45 degree join so I may have to redo it (I have enough
trunking left I think)...
>>
>> Phil
>>
>> Sent from another bloody fruit-based portable device...
>>
>> On 12 Dec 2010, at 17:33, Stephen McGarry <stephen@xxxxxxx>
wrote:
>>
>>> A thought is to make a piece of wood to fit inside the
trunking and support the sides while its being sawn with a mitre
>>> saw. The Evolution saws have a fine blade which cuts less
harshly than standard saws (and they cut nearly everything).
>>>
>>> HTH
>>> Stephen
>>>
>>> On 12/12/10 09:13, Peter + Jane wrote:
>>>> I have a high end German sliding mitre saw and am
>>>> near the end of a complicated self build. I have
>>>> used the saw endlessly for plastic soil pipe and
>>>> waste pipe. The trouble with trunking is it is a
>>>> bit thin and flappy. You would need a very fine
>>>> blade and would need to cut very slowly to avoid
>>>> snatching, chipping or splintering. Hence my
>>>> preference to mark with a pencil, cut with an
>>>> angle grinder and then finesse back to the line.
>>>> Simples!
>>>> But each to their own!
>>>> With a lot to do, an abrasive disc in a chop saw might be
ideal.
>>>> Rgds
>>>> Peter
>>>> At 08:57 12/12/2010, you wrote:
>>>>>
>>>>>
>>>>> PVC trunking ..... tricksy stuff....
>>>>>
>>>>> I think something like this
>>>>> <http://www.screwfix.com/prods/33776/Power-Tools/Compound-Mitre-Saws/Erbauer-ERB238MSW-254mm-Sliding-Mitre-Saw-230V>http://www.screwfix.com/prods/33776/Power-Tools/Compound-Mitre-Saws/Erbauer-ERB238MSW-254mm-Sliding-Mitre-Saw-230V
>>>>>
>>>>> I have an Erbauer, cant recommend it enough. Given
that trunking is tricksy,
>>>>> you might need something to trim the bits off
>>>>> with so what about a Dremel 8000
>>>>> as well.... just in case. :-) :-) :-)
>>>>>
>>>>> robin
>>>>>
>>>>> On 11/12/10 22:14, Phil Harris wrote:
>>>>>> Wondering if I can use it as an excuse to get
>>>>> a nice sliding compound mitre saw for myself
>>>>> 'for Xmas' (but I might buy it tomorrow from Screwfix
of course...
>>>>>>
>>>>>> Phil
>>>>>>
>>>>>> Sent from another bloody fruit-based portable
device...
>>>>>>
>>>>>> On 11 Dec 2010, at 21:11, "Tracey
>>>>> Gardner"<<mailto:tracey.gardner%40talktalk.net>tracey.gardner@xxxxxxx
<mailto:tracey.gardner%40talktalk.net>>
>>>>> wrote:
>>>>>>
>>>>>>> A chop saw with a decent high TPI blade would
do the trick.
>>>>>>> Especially if you cut it with the lid on?
>>>>>>>
>>>>>>> Tracey
>>>>>>>
>>>>>>>> I need to cleanly cut mitres in some
4" x 2" rectangular profile trunking
>>>>>>>> and was wondering if anyone knows whether
it's possible to use hot wire
>>>>>>>> cutters to get a nice clean and square cut
>>>>> or am I stuck with using my old
>>>>>>>> 18TPI mitre saw which doesn't do that good
a job on the relatively floppy
>>>>>>>> box section of the trunking...
>>>>>>>>
>>>>>>>> Phil
>>>>>>>>
>>>>>>>
>>>>>>>
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