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Blowpipe too thin.
http://forums.chiffandfipple.com/viewtopic.php?f=6&t=111223
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Author:  john [ Fri Sep 18, 2020 1:52 pm ]
Post subject:  Blowpipe too thin.

I have a blowpipe that doesn't fit the hose coming from the bellows. I don't know how to build it up. Hemp doesn't work because it forms a wedge that slips. Black tape is a bit better but is sticky and slips/unravels a bit. I realise I could try a blowpipe that's wider but I like this particular one. I hope what I've said is comprehensible.

Author:  m4malious [ Fri Sep 18, 2020 5:13 pm ]
Post subject:  Re: Blowpipe too thin.

Strip the blowpipe hemp off.
Apply several layers of paper painters masking tape - the 3/4" wide stuff - until the fit on the hose is just slightly sliding.
Apply waxed hemp/thread/floss over the paper tape, tightly wound, till the fit is secure and airtight.

The final layers of floss binding will help hold the paper tape in position.
M

Author:  Ceann Cromtha [ Sat Sep 19, 2020 3:52 am ]
Post subject:  Re: Blowpipe too thin.

If that doesn’t hold you can put a hose clamp on it (and tape over it to keep it from scratching your set).

Author:  Mr.Gumby [ Sat Sep 19, 2020 5:07 am ]
Post subject:  Re: Blowpipe too thin.

A little connector, one end goes into the end of the hose, the other fits the blowpipe:

Image

Author:  john [ Sat Sep 19, 2020 4:50 pm ]
Post subject:  Re: Blowpipe too thin.

Thank you, I'm going to try the tape and hemp. I don't think I have anything that would work as an adaptor.

Author:  m4malious [ Sat Sep 19, 2020 6:13 pm ]
Post subject:  Re: Blowpipe too thin.

Clean the end of the blowpipe with spirit to remove any residue. Bare, dry, wood will grip the new tape best.
Put the masking tape on as tight as you can. Keep plenty of tension on the tape whilst winding it over the blowpipe end.
Ditto for the final layers of hemp/thread/floss.
M

Author:  john [ Sat Sep 19, 2020 6:24 pm ]
Post subject:  Re: Blowpipe too thin.

m4malious wrote:
Clean the end of the blowpipe with spirit to remove any residue. Bare, dry, wood will grip the new tape best.
Put the masking tape on as tight as you can. Keep plenty of tension on the tape whilst winding it over the blowpipe end.
Ditto for the final layers of hemp/thread/floss.
M

Acetone would be okay wouldn't it?

Author:  m4malious [ Sat Sep 19, 2020 8:12 pm ]
Post subject:  Re: Blowpipe too thin.

Depends on what residue adhesive is there (from black plastic tape, etc)... Sometimes turpentine works best - acetone is pretty powerful, but should give you
the clean, bare wood, sort of surface you want prior to laying on the masking tape.
M

Author:  elbowmusic [ Sun Sep 20, 2020 10:01 am ]
Post subject:  Re: Blowpipe too thin.

What's the wood? Does it have a finish?

Author:  john [ Wed Sep 30, 2020 12:58 pm ]
Post subject:  Re: Blowpipe too thin.

The tip of the blowpipe is about 1 1/2 times the width of the tape. Do I wind round this whole area or just a section the same width as the tape?

Author:  m4malious [ Wed Sep 30, 2020 2:42 pm ]
Post subject:  Re: Blowpipe too thin.

Put the tape on so that the edge of the tape is about 3mm back from the outside edge of the blowpipe.
That prevents the tape from folding over the intake hole, when its wound around the blowpipe end.

Its pretty simple - you're just trying to build up in diameter with the tape, then hemp, a section of the length of the blowpipe
end that allows for an airtight fit into the bellows outlet tube.

If you're struggling to visualise this, PM me for an image that will help.
M

Author:  john [ Fri Oct 02, 2020 11:03 am ]
Post subject:  Re: Blowpipe too thin.

Hi m4malious, I pmd you. Thanks.

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