X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 11 [X] Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.6) with ESMTP id 1858942 for flyrotary@lancaironline.net; Fri, 23 Feb 2007 19:53:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l1O0qC6c007788 for ; Fri, 23 Feb 2007 19:52:13 -0500 (EST) Message-ID: <000d01c757ae$08dfa8f0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Cooked Board - Really! Date: Fri, 23 Feb 2007 19:52:18 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C75784.1FAC8CD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C75784.1FAC8CD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Excellent suggestion, Jim. I'll check it out. That would be ideal. I haven't seen the approach = Ernest suggested in any of the material I have read - but it would be = cheap (if not easy) to try one and see how it turns out. =20 I could simply print out the silkscreen out line of the parts on paper, = glue it to the fiberglass board and cut out where indicated. The board = of the material you suggested will certainly survive the temperatures. Thanks Ed ----- Original Message -----=20 From: James Maher=20 To: Rotary motors in aircraft=20 Sent: Friday, February 23, 2007 5:59 PM Subject: [FlyRotary] Re: Cooked Board - Really! Ed, How about the printed circuit board material? Its fiberglass and you can get it without any metal on it. It goes by many names, FR-4, G10, NP510A NP511 etc. depending on the = manufacturer. Some manufactures will send you 18"x18" sample sheets of various = thickness for evaluation. It is easily cut and drilled with a Dremel tool. I was condidering using it as aircraft skin material. One of our Delta Builders actually did use this material as skins. Jim Ed Anderson wrote: Neat Idea, Ernest Might be less work than trying to develop a manual "pick and Place" = gantry=20 {:>). I wonder what is easy enough to cut but will withstand 468F = for 90=20 seconds? Ed ----- Original Message -----=20 From: "Ernest Christley"=20 To: "Rotary motors in aircraft"=20 Sent: Friday, February 23, 2007 3:11 PM Subject: [FlyRotary] Re: Cooked Board - Really! > Ed Anderson wrote: > >> My highly advanced GE convection reflow oven cost $38.99 and that = part of=20 >> the experiment work perfectly. Besides, I don't have room for one = that=20 >> size, Mike {:>) >> The most difficult part of the experiment was placing the = components=20 >> without rubbing the solder paste off the pad and knocking another = >> component askew. I now understand why they talked about "arm = rests". It=20 >> doesn't take much to get misalign. >> > > > Ed, get a second piece of plexiglass cut. This one to have large = holes to=20 > clear the solder pads, but comes in to the thickness of the = components.=20 > The idea is to drop the components into a hole that will force = them into=20 > alignment. All the better if it's made of a material that can = stand the=20 > heat of the oven. > > --=20 > ,|"|"|, Ernest Christley | > ----=3D=3D=3D<{{(oQo)}}>=3D=3D=3D---- Dyke Delta Builder | > o| d |o http://ernest.isa-geek.org | > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_000A_01C75784.1FAC8CD0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Excellent suggestion, Jim.
 
I'll check it out.  That would be = ideal.  I=20 haven't seen the approach Ernest suggested in any of the material I have = read -=20 but it would be cheap (if not easy) to try one and see how it turns=20 out.
 
 
I could simply print out the silkscreen out line = of the=20 parts on paper, glue it to the fiberglass board and cut out where=20 indicated.  The board of the material you suggested will certainly = survive=20 the temperatures.
 
Thanks
 
Ed
----- Original Message -----
From:=20 James=20 Maher
Sent: Friday, February 23, 2007 = 5:59=20 PM
Subject: [FlyRotary] Re: Cooked = Board -=20 Really!

Ed,
How about the printed circuit board material?
Its fiberglass and you can get it without any metal on it.
It goes by many names, FR-4, G10, NP510A NP511 etc. depending on = the=20 manufacturer.
Some manufactures will send you 18"x18" sample sheets of = various=20 thickness for evaluation.
It is easily cut and drilled with a Dremel tool.
I was condidering using it as aircraft skin material.
One of our Delta Builders actually did use this material as = skins.
Jim
 


Ed Anderson = <eanderson@carolina.rr.com>=20 wrote:
Neat=20 Idea, Ernest

Might be less work than trying to develop a = manual "pick=20 and Place" gantry
{:>). I wonder what is easy enough to cut = but will=20 withstand 468F for 90
seconds?

Ed
----- Original = Message -----=20
From: "Ernest Christley"
To: "Rotary = motors in=20 aircraft"
Sent: Friday, February = 23, 2007=20 3:11 PM
Subject: [FlyRotary] Re: Cooked Board - = Really!


>=20 Ed Anderson wrote:
>
>> My highly advanced GE = convection=20 reflow oven cost $38.99 and that part of
>> the experiment = work=20 perfectly. Besides, I don't have room for one that
>> = size, Mike=20 {:>)
>> The most difficult part of the experiment was = placing=20 the components
>> without rubbing the solder paste off the = pad and=20 knocking another
>> component askew. I now understand why = they=20 talked about "arm rests". It
>> doesn't take much to get=20 misalign.
>>
>
>
> Ed, get a second piece = of=20 plexiglass cut. This one to have large holes to
> clear the = solder=20 pads, but comes in to the thickness of the components.
> The = idea is=20 to drop the components into a hole that will force them into =
>=20 alignment. All the better if it's made of a material that can stand = the=20
> heat of the oven.
>
> --
> ,|"|"|, = Ernest=20 Christley |
> ----=3D=3D=3D<{{(oQo)}}>=3D=3D=3D---- Dyke = Delta Builder=20 |
> o| d |o http://ernest.isa-geek.org |
>
> = --
>=20 Homepage: http://www.flyrotary.com/
> Archive and UnSub:=20 http://mail.lancaironline.net/lists/flyrotary/ =


--
Homepage:=20 http://www.flyrotary.com/
Archive and UnSub:=20 = http://mail.lancaironline.net/lists/flyrotary/

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