I'm in the process of building a waste oil burner, but need a very
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.
Many thanks to all that have replied, with the current climate my
resembles the local morgue and i need to finish this project
I had considered drilling my own jet, but had discounted the idea, as i
imagine drilling anything so fine with the combined effort of the
have in my workshop and hands like shovels:D (any tips on
this process would be
Must admit i had stupidly not thought of gas pilots, :rolleyes:
the disposable lighter suggestion is quite inspired btw, will check one
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 :-|
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.
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.
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
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
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.
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.
Thanks once again for all the replies.
I bought a pilot jet this morning from my local gas spares place, it
was only a
couple of quid and should do the trick.
Also picked up a cheap 240v fan from the same place, which someone had
and then not collected.
Pretty much have everything i need now to start the project. Will post
progress report in due course.