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Old Jan 12, 2010, 12:47 PM
David Billington
Guest
n/a Posts
Re: Source for very small jet

alspeed wrote:

> I'm in the process of building a waste oil burner, but need a very
> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
> can anyone think of a readily available source of something so small.
> Thanks in advance.
>
> Alan.
>
>
>

You might try Burlen Fuel systems in Salisbury. They do a range of jets
for their Amal gas injectors, you can find some details for the jet
characteristics here http://www.amalcarb.co.uk/downloads.aspx under the
Amal gas burner jets download about halfway down the page. Really
annoyingly they have converted the downloads to jpeg images rather than
the previous PDF format.
Old Jan 12, 2010, 01:45 PM
Mark Rand
Guest
n/a Posts
Re: Source for very small jet

On Tue, 12 Jan 2010 10:42:22 -0600, alspeed <alspeed.44ossn@rcgroups.com>
wrote:


>
>I'm in the process of building a waste oil burner, but need a very
>small jet, 0.015" or thereabouts, to fire a stream of compressed air,
>can anyone think of a readily available source of something so small.
>Thanks in advance.
>
>Alan.



Ketan to the rescue?

http://www.arceurotrade.co.uk/Catalo...its---Polished

.4mm is in the right ballpark

Mark Rand
RTFM
Old Jan 12, 2010, 03:00 PM
Drawfiler
Guest
n/a Posts
Re: Source for very small jet

On Jan 12, 6:45pm, Mark Rand <ra...@internettie.co.uk> wrote:

> On Tue, 12 Jan 2010 10:42:22 -0600, alspeed <alspeed.44o...@rcgroups.com>
> wrote:
>
>
>

> >I'm in the process of building a waste oil burner, but need a very
> >small jet, 0.015" or thereabouts, to fire a stream of compressed air,
> >can anyone think of a readily available source of something so small.
> >Thanks in advance.

>

> >Alan.

>
> Ketan to the rescue?
>
> http://www.arceurotrade.co.uk/Catalo...wist-Drills/Dr...
>
> .4mm is in the right ballpark
>
> Mark Rand
> RTFM


Firstly why not make the jets , Jand L list drills this size and
smaller, but if you want to buy finished jets, another source is gas
jets for pilot lights, try Plumb Centre.
Peter
Old Jan 12, 2010, 03:20 PM
David Billington
Guest
n/a Posts
Re: Source for very small jet

David Billington wrote:

> alspeed wrote:

>> I'm in the process of building a waste oil burner, but need a very
>> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
>> can anyone think of a readily available source of something so small.
>> Thanks in advance.
>>
>> Alan.
>>
>>
>>

> You might try Burlen Fuel systems in Salisbury. They do a range of
> jets for their Amal gas injectors, you can find some details for the
> jet characteristics here http://www.amalcarb.co.uk/downloads.aspx
> under the Amal gas burner jets download about halfway down the page.
> Really annoyingly they have converted the downloads to jpeg images
> rather than the previous PDF format.

Other than Burlen which should provide a standard jet, you may have to
ask what size jet corresponds to 0.015", I wonder about disposable
lighters and pilot light jets.
Old Jan 12, 2010, 03:50 PM
Harry Bloomfield
Guest
n/a Posts
Re: Source for very small jet

Mark Rand formulated on Tuesday :

> On Tue, 12 Jan 2010 10:42:22 -0600, alspeed <alspeed.44ossn@rcgroups.com>
> wrote:
>

>>
>> I'm in the process of building a waste oil burner, but need a very
>> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
>> can anyone think of a readily available source of something so small.
>> Thanks in advance.
>>
>> Alan.

>
>
> Ketan to the rescue?
>
> http://www.arceurotrade.co.uk/Catalo...its---Polished
>
> .4mm is in the right ballpark
>
> Mark Rand
> RTFM


If you live in the north, near a Boyes, they are doing sets of 20 micro
drills for 2.98 from 0.3 up to 1.5mm

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk
Old Jan 12, 2010, 04:27 PM
mark
Guest
n/a Posts
Re: Source for very small jet

On 12 Jan, 16:42, alspeed <alspeed.44o...@rcgroups.com> wrote:

> I'm in the process of building a waste oil burner, but need a very
> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
> can anyone think of a readily available source of something so small.
> Thanks in advance.
>
> Alan.
>
> --
> alspeed
> -------------------------------------------------------------------------------
> alspeed's Profile:http://www.rcgroups.com/forums/member.php?u=181998
> View this thread:http://www.rcgroups.com/forums/showthread.php?t=1174086


mig welding tips come in at 0.6mm

all the best.markj
Old Jan 12, 2010, 06:07 PM
Registered User
Joined Nov 2007
6 Posts
Many thanks to all that have replied, with the current climate my workshop resembles the local morgue and i need to finish this project pronto.

I had considered drilling my own jet, but had discounted the idea, as i can't imagine drilling anything so fine with the combined effort of the equipment i have in my workshop and hands like shovels (any tips on this process would be greatfully received).

Must admit i had stupidly not thought of gas pilots,
the disposable lighter suggestion is quite inspired btw, will check one out in the morning.

Thanks again
Alan
alspeed is offline Find More Posts by alspeed
Old Jan 12, 2010, 06:12 PM
Mike
Guest
n/a Posts
Re: Source for very small jet

On Tue, 12 Jan 2010 12:00:45 -0800 (PST), Drawfiler
<petercolman45@hotmail.com> wrote:


>but if you want to buy finished jets, another source is gas
>jets for pilot lights, try Plumb Centre.


If it's associated with gas then Plumb Center (yank spelling yet here
in the UK) won't sell it to Joe Public - apparently it's a new policy
introduced about a year ago to stop 'illegal gas fitters' Unless you
produce a 'Gas Safe' card then they can't even process the purchase
(or so reports have said!) Even gas rated PTFE tape is not for sale
to the unwashed!

Because of that, and apart from a few oddball water / drainage pipe
fittings and primus portable blowtorch refills, all my business for
boiler/gas burning bits goes elsewhere - usually online or other more
sympathetic plumbing supply places.


--
Old Jan 12, 2010, 07:37 PM
Mark Rand
Guest
n/a Posts
Re: Source for very small jet

On Tue, 12 Jan 2010 23:12:18 +0000, Mike <nospam@nospam.com> wrote:


>On Tue, 12 Jan 2010 12:00:45 -0800 (PST), Drawfiler
><petercolman45@hotmail.com> wrote:
>

>>but if you want to buy finished jets, another source is gas
>>jets for pilot lights, try Plumb Centre.

>
>If it's associated with gas then Plumb Center (yank spelling yet here
>in the UK) won't sell it to Joe Public - apparently it's a new policy
>introduced about a year ago to stop 'illegal gas fitters' Unless you
>produce a 'Gas Safe' card then they can't even process the purchase
>(or so reports have said!) Even gas rated PTFE tape is not for sale
>to the unwashed!
>
>Because of that, and apart from a few oddball water / drainage pipe
>fittings and primus portable blowtorch refills, all my business for
>boiler/gas burning bits goes elsewhere - usually online or other more
>sympathetic plumbing supply places.


Rather odd, since Joe Public specifically doesn't have to have a "Gas Safe"
card and can't be a illegal gas fitter since he isn't doing gas work for pay.

More bloody Stalinist ideas from yer friendly government :-|


Mark Rand
RTFM
Old Jan 12, 2010, 09:35 PM
Dave Baker
Guest
n/a Posts
Re: Source for very small jet

"alspeed" <alspeed.44ossn@rcgroups.com> wrote in message
news:alspeed.44ossn@rcgroups.com...

>
> I'm in the process of building a waste oil burner, but need a very
> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
> can anyone think of a readily available source of something so small.
> Thanks in advance.


That's the size range of the idle jets in Weber carburettors. However they
are a press fit into a holder rather than screwing in, or at least on DCOE
style carbs. I think you'd prefer something that screwed into place. You'll
find diagrams online if you Google. Anyway it'd be a piece of piss to make a
jet out of brass. I have drill bits covering that range I think.
--
Dave Baker
Old Jan 12, 2010, 09:42 PM
Dave Baker
Guest
n/a Posts
Re: Source for very small jet

"Dave Baker" <Null@null.com> wrote in message
news:hijbhh$rhb$1@news.datemas.de...

>
> "alspeed" <alspeed.44ossn@rcgroups.com> wrote in message
> news:alspeed.44ossn@rcgroups.com...

>>
>> I'm in the process of building a waste oil burner, but need a very
>> small jet, 0.015" or thereabouts, to fire a stream of compressed air,
>> can anyone think of a readily available source of something so small.
>> Thanks in advance.

>
> That's the size range of the idle jets in Weber carburettors. However they
> are a press fit into a holder rather than screwing in, or at least on DCOE
> style carbs. I think you'd prefer something that screwed into place.
> You'll find diagrams online if you Google. Anyway it'd be a piece of piss
> to make a jet out of brass. I have drill bits covering that range I think.


http://www.lceperformance.com/Weber-...p74821-040.htm

There's a 0.4mm idle jet. As you can see there's also a little air hole in
the side but if you can block that off or arrange the thing to be clamped
into a housing that covers that anyway you're sorted.
--
Dave Baker
Old Jan 13, 2010, 05:01 AM
invalid
Guest
n/a Posts
Re: Source for very small jet

"alspeed" <alspeed.44p9gn@rcgroups.com> wrote in message
news:alspeed.44p9gn@rcgroups.com...

> I had considered drilling my own jet, but had discounted the idea, as i
> can't imagine drilling anything so fine with the combined effort of the
> equipment i have in my workshop and hands like shovels:D (any tips on
> this process would be greatfully received).


It's tedious, but it works.

Start with the drill almost completely retracted into the chuck.

Drill a nick.

Ever so slowly, repeatedly withdraw the drill a gnat's cock
out of the chuck, retighten and drill again.

If at any time you feel that it's all too tedious, and you
want to rush with bigger bites, STOP IMMEDIATELY,
go into the house, have a cup of tea and a slice of
Christmas cake.

When you have calmed down, resume operations by
drilling a gnat's cock deeper with each iteration.

The time taken to compensate for the mistakes made
by rushing will far exceed the time it takes to
go a gnat-cocking!
Old Jan 13, 2010, 11:48 AM
Richard Edwards
Guest
n/a Posts
Re: Source for very small jet

On Wed, 13 Jan 2010 10:01:59 -0000, "invalid"
<invalid@invalid.invalid> wrote:


>"alspeed" <alspeed.44p9gn@rcgroups.com> wrote in message
>news:alspeed.44p9gn@rcgroups.com...

>> I had considered drilling my own jet, but had discounted the idea, as i
>> can't imagine drilling anything so fine with the combined effort of the
>> equipment i have in my workshop and hands like shovels:D (any tips on
>> this process would be greatfully received).

>
>It's tedious, but it works.
>
>Start with the drill almost completely retracted into the chuck.
>
>Drill a nick.
>
>Ever so slowly, repeatedly withdraw the drill a gnat's cock
>out of the chuck, retighten and drill again.
>
>If at any time you feel that it's all too tedious, and you
>want to rush with bigger bites, STOP IMMEDIATELY,
>go into the house, have a cup of tea and a slice of
>Christmas cake.
>
>When you have calmed down, resume operations by
>drilling a gnat's cock deeper with each iteration.
>
>The time taken to compensate for the mistakes made
>by rushing will far exceed the time it takes to
>go a gnat-cocking!


The last time that I used a 1/64th drill I drilled about 8mm deep into
steel (printer bar) on the lathe. Spotted with a centre drill to give
a minimal centre location then put the .015" drill into a pin chuck.
Shaft of pin chuck in the tailstock chuck but not clamped tight
(capable of spinning). Only there to give initial alignment.
With lathe on top speed (about 1500 rpm) I held the pin-chuck in my
fingers and fed it in by hand. Worked well and did not take long at
all.



Richard
Old Jan 14, 2010, 05:36 PM
Mike
Guest
n/a Posts
Re: Source for very small jet

On Wed, 13 Jan 2010 00:37:37 +0000, Mark Rand
<randm@internettie.co.uk> wrote:


>Rather odd, since Joe Public specifically doesn't have to have a "Gas Safe"
>card and can't be a illegal gas fitter since he isn't doing gas work for pay.
>
>More bloody Stalinist ideas from yer friendly government :-|


It's not the government, nor the EU behind the change, there is no new
legislation, and essentially nothing has changed apart from the rename
from CORGI to Gas Safe. The restriction on sales is Plumb Center's
unilateral decision*. Fortunately others haven't followed their lead.

DIY gas work is at the moment, and always has been, legal - as long
as you are 'competent' of which there is no 'amateur' measure of
competence. Paid work is different, but even the HSE haven't, as far
as I am aware, ever actively discouraged DIY work otherwise they would
have made recommendations for the introduction of appropriate
legislation. I know they mentioned that it 'wasn't a problem' in a
discussion document they published a few years ago on gas safety.


*
This is a later press release, repeating much of what they said when
their 'ban' first came in.
http://www.wolseley.co.uk/corp/news/news121.html


--
Old Jan 15, 2010, 02:57 PM
Alan Bain
Guest
n/a Posts
Re: Source for very small jet

In article <6pgpk55v264f5bbghap4i7o413pj0r28pt@4ax.com>,
Mark Rand <randm@internettie.co.uk> wrote:

>On Tue, 12 Jan 2010 10:42:22 -0600, alspeed <alspeed.44ossn@rcgroups.com>
>wrote:
>

>>
>>I'm in the process of building a waste oil burner, but need a very
>>small jet, 0.015" or thereabouts, to fire a stream of compressed air,
>>can anyone think of a readily available source of something so small.
>>Thanks in advance.
>>
>>Alan.

>
>
>Ketan to the rescue?
>
>http://www.arceurotrade.co.uk/Catalo...its---Polished
>
>.4mm is in the right ballpark
>
>Mark Rand
>RTFM


Unfortunately they ArcEuro don't sell any smaller than 0.4mm. I seem
to have broken my last 0.1mm drill bit and don't know where to get
replacements so at the moment I am using home made spade bits which
is a bit tedious.

Any suggestions on somewhere which covers the 0.1mm to 0.3mm range would
be most helpful.

Alan
 


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