On Fri, 25 Mar 2011 13:07:32 -0400
"Bob Camp" wrote:
> Done it in the before
Yes. I regularly solder 0.5mm and 0.63mm pitch stuff by hand at work.
> Done it in the basement / last 2 years - no.
No. I take all the stuff i want to solder to work and do it there.
Although i have equipment at ho
that should be no
problem.
Just cut the tape into smaller strips and include those with the kit.
regards,
Fred
- Original Message
From: Steve Wiseman
To: Discussion of precise time and frequency measurement
Sent: Sat, March 26, 2011 3:10:13 PM
Subject: Re: [time-nuts] Parts Sele
John Miles "jmiles at pop.net" wrote:
> That's my vote as well. Can do it, have done it, will do it again, but
> only for things that are interesting enough to spend the time on. In
> other words, no, I would not build a kit that replicated functionality
> available in cheap surplus gear and was
Bob Paddock wrote:
...
BGA's are actually easier to do than QFN parts, as long as you accept
the board is now not repairable and is a throwaway item.
...
BGA's are about as easy to rework as anything else. You use a hot air
rework station, and an underboard preheater. The hot air rework stat
On Fri, Mar 25, 2011 at 5:29 PM, Bob Camp wrote:
> I don't see a way to reasonably ship a solder mask with each board. I agree
> it would be neat, but it would cost ...
Solder Stencil actually. The mask is part of the board.
Low use stencils are $25: http://www.pololu.com/catalog/product/446
f
On 26/03/2011, Bob Camp wrote:
> Best bet - get / make a simple screen printer. A manual one is going to be
> cheap. A home made one is even cheaper. The solder screen it's self won't
> cost you much more than the time you would spend programming the robot and
> messing with it. Solder screen / s
ld be interested.
>
> Didier KO4BB
>
>
> Sent from my BlackBerry Wireless thingy while I do other things...
>
> -Original Message-
> From: "Bob Camp"
> Sender: time-nuts-boun...@febo.com
> Date: Fri, 25 Mar 2011 13:07:32
> To: 'Discussion of preci
nder: time-nuts-boun...@febo.com
Date: Fri, 25 Mar 2011 13:07:32
To: 'Discussion of precise time and frequency measurement'
Reply-To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Parts Selection
Hi
Just a show of hands sort of thing. It comes up each t
How many people are willing to solder up a project with multiple 0.5mm
spacing >=144 pin package IC's on it? There's a typical package drawing
at
the end of:
For that complexity, I would only consider buying a pre-assembled and
tested board.
Cheers,
David
--
SatSignal software - quality sof
Done it before - yes.
Done it in the basement - yes
Last 2 years - no.
Set up to do it in the basement - yes, but not set up well.
Anticipating buying a hot air system soon.
Would I buy one - done that before. Likely would again. - Yes
Would actually do it in a reasonable amount of time - Ye
On Fri, Mar 25, 2011 at 1:57 PM, John Miles wrote:
> Life is too short to turn your basement into a
> one-person Chinese sweatshop. Meanwhile, the value offered by preassembled
> eval/development/training boards can be considerable.
Even in "Chinese sweatshops" where people work cheap they do n
Haven't read all 33 replies, so I must be repeating at least one:
Can't do it. Too old and shaky. Don't want to buy expensive equipment
to equip myself to do it. Don't consider the micro to be a useful
tool, unlike most on this list. Have no trouble with vacuum tube
and 0.1" perf board parts.
My
Done it in the before - yes.
Done it in the home lab / last 2 years - yes.
Set up to do it in the home lab - yes.
Would I buy one - yes.
Would actually do it in a reasonable amount of time - Yes
A weekend or two.
--- Graham / KE9H
___
time-nuts ma
On Friday 25 March 2011, Bob Camp wrote:
> Done it in the before - yes.
>
Yes.
> Done it in the basement / last 2 years - no.
>
Yes.
> Set up to do it in the basement - yes, but not set up well.
>
Yes.
> Would I buy one - done that before. Likely would again. (counts as a yes).
>
Depends.
>
Done it in the before - yes.
Done it in the kitchen / last 2 years - yes
Set up to do it in the kitchen - yes.
Would I buy one - probably not, given your constraints. Never build what you
can reasonably buy.
Would actually do it in a reasonable amount of time -yes
As far as the stencil is
Sent: Friday, March 25, 2011 11:57 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Parts Selection
>
>
> Have I? Yes
> Could I? Yes
> Would I? For the kind of project mentioned, hell no. Life is too short.
>
>
>
>
> O
Hi -
New to the list as of last night - much more activity than I expected.
As an introduction, my name I Brent, and I work mostly in the subsea
world, although prior to that, in the RF/microwave test equipment
world.
I expected to lurk for a good 6 months before chiming in, but what the heck.
On Mar 25, 2011, at 11:26 AM, "Bob Camp" wrote:
> Hi
>
> Any part of the home is fine.
>
> All I'm trying to rule out is "take it to work and have them do it" and
> "take it to work and build it with their gear". Those might be unreasonable
> constraints. There may be places that are fine wi
-nuts] Parts Selection
Ok, I'll add mine
Done it in the before - yes.
Done it in the kitchen / last 2 years - yes
Set up to do it in the kitchen - yes, but not set up well.
Would I buy one - done that before. Likely would again. (counts as a yes).
Would actually do it in a reasonable amou
Ok, I'll add mine
Done it in the before - yes.
Done it in the kitchen / last 2 years - yes
Set up to do it in the kitchen - yes, but not set up well.
Would I buy one - done that before. Likely would again. (counts as a yes).
Would actually do it in a reasonable amount of time -yes
ian
de Campos
> Sent: Friday, March 25, 2011 2:40 PM
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] Parts Selection
>
> My answers:
>
> Done it in the before - yes.
>
> Done it in the basement / last 2 years - yes.
>
> Set up to do it in the basement - yes.
>
&
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Geraldo Lino de Campos
Sent: Friday, March 25, 2011 2:40 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Parts Selection
My answers:
Done it in the before - yes.
Done it in the basement / last 2 years - yes.
Set up to do
Hi Bob,
Have done it at home and work
Am set up at home
Would do it (have done smaller)
Robert G8RPI.
--- On Fri, 25/3/11, Bob Camp wrote:
From: Bob Camp
Subject: [time-nuts] Parts Selection
To: "'Discussion of precise time and frequency measurement'"
Date: Friday, 2
My answers:
Done it in the before - yes.
Done it in the basement / last 2 years - yes.
Set up to do it in the basement - yes.
Would I buy one - depend on the specs - if better then 5370, yes.
Would actually do it in a reasonable amount of time - unlikely.
--
-
vid VanHorn
> Sent: Friday, March 25, 2011 2:16 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Parts Selection
>
>
>
> Done it in the before - Yes
> Done it in the basement / last 2 years - Yes
> Set up to do it in the basement - Y
and frequency measurement
Subject: Re: [time-nuts] Parts Selection
Done it in the before - Yes
Done it in the basement / last 2 years - Yes
Set up to do it in the basement - Yes (bedroom, no basement)
Would I buy one - done that before. Yes
Would actually do it in a reason
Done it in the before - Yes
Done it in the basement / last 2 years - Yes
Set up to do it in the basement - Yes (bedroom, no basement)
Would I buy one - done that before. Yes
Would actually do it in a reasonable amount of time - Yes
___
time-nuts maili
PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
On Fri, Mar 25, 2011 at 1:07 PM, Bob Camp wrote:
> How many people are willing to solder up a project with multiple 0.5mm
> spacing >=144 pin package IC's on it?
The example was a LQFP
Done it before: yes
Done it in the last 2 years: yes
Setup to do it in the basement: yes, I use soldering iron and/or hot air and
have a USB inspection microscope
Would I byt one? Yes Yes Yes I'm always on the lookout for more complex kits
Would do in a reasonable amount of time: Yes
I've don
..@febo.com] On
Behalf Of paul swed
Sent: Friday, March 25, 2011 2:03 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
My first answer would be heck no. Enough trouble with 16 pin chips.
BUT now you have set the bait. A cesium standard.
That woul
On Fri, Mar 25, 2011 at 1:07 PM, Bob Camp wrote:
> How many people are willing to solder up a project with multiple 0.5mm
> spacing >=144 pin package IC's on it?
The example was a LQFP 144-pins.
Done it before - no, but I have worked with SMT such as 18-pins SOIC
(1.27 mm) and 24 pin SSOP (0.65m
..@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of Greg Broburg
> Sent: Friday, March 25, 2011 2:53 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Parts Selection
>
> I have assembled hundreds of such parts using only a
> low cost An
nt
Subject: Re: [time-nuts] Parts Selection
I have assembled hundreds of such parts using only a
low cost Antex 15W soldering iron, some fine diameter
solder and some solder wick. A hot air gun makes
removal very easy and I have never damaged a PCB
using the hot air removal method.
Solder diameter
I have assembled hundreds of such parts using only a
low cost Antex 15W soldering iron, some fine diameter
solder and some solder wick. A hot air gun makes
removal very easy and I have never damaged a PCB
using the hot air removal method.
Solder diameter should be .010 - .015 mils Large
diameter
ement
Subject: Re: [time-nuts] Parts Selection
My answers below (cursing iPad mail reader for this kind of thing)
On Mar 25, 2011, at 10:07 AM, "Bob Camp" wrote:
>
> I'm not talking about opinions on weather it can or can't be done. It
> certainly can be done and is
Would I take on a project with those parts? Maybe but eBay places an
upper limit on what I'll spend to build something. I'd much rather
buy a used HP counter for $250 than spend $500 to build one. You'd
have to get the build cost to less than 1/2 the buy cost.
0.5 mm is not that hard to hand s
recise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
Hi,
I have done this sort of stuff multiple times, and am prepared to do it
again (in the basement) as long as my eyes are good enough and my hands
steady.
0.5 mm pin pitch is certainly doable with a soldering iron. T
My answers below (cursing iPad mail reader for this kind of thing)
On Mar 25, 2011, at 10:07 AM, "Bob Camp" wrote:
>
> I'm not talking about opinions on weather it can or can't be done. It
> certainly can be done and is done every day. What I'm asking is - would you
> buy a bag with the parts al
with a
microscope or the eyes of an eagle.
Dave
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bob Camp
Sent: 25 March 2011 17:08
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Parts Selection
1 18:08
An: 'Discussion of precise time and frequency measurement'
Betreff: [time-nuts] Parts Selection
Hi
Just a show of hands sort of thing. It comes up each time we talk about
projects and never really gets answered. Rather than trying to work it out
as a part of a project, le
0 on any sort of kit.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Javier Herrero
Sent: Friday, March 25, 2011 1:29 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
Hi
>
&g
Hi
Done it in the before - yes.
Done it in the basement / last 2 years - and from quite longer than that...
Set up to do it in the basement - yes
Would I buy one - I'm afraid I don't fully understand your question, but I
routinely buy and solder 0.5mm spacing TQFPs (counts as yes?)
ssion of precise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
Here are my answers:
Done it before? - yes.
Done it in the basement / last 2 years? - Yes. In last 24 hours actually.
Set up to do it in the basement? - Yes. Can do by hand, hot air rework
tools, or reflow
With regards to soldering .5mm pitch parts:
I've never done that professionally or as a hobby.
I don't see myself doing this at home.
On Fri Mar 25th, 2011 1:07 PM EDT Bob Camp wrote:
>Hi
>
>
>
>Just a show of hands sort of thing. It comes up each time we talk about
>projects and never really
ch 25, 2011 1:18 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Parts Selection
Hi Bob:
Done it before - No.
Have done 0.05" (1.27mm) pitch and it's easy.
Done it / last 2 years - No.
Set up to do it - No.
I don't have a feel for the
oun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of Bob Camp
> Sent: 25 March 2011 17:08
> To: 'Discussion of precise time and frequency measurement'
> Subject: [time-nuts] Parts Selection
>
> Hi
>
>
>
> Just a show of hands sort of thing. It c
iginal Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Bob Camp
Sent: 25 March 2011 17:08
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Parts Selection
Hi
Just a show of hands sort of thing. It comes
Hi Bob:
Done it before - No.
Have done 0.05" (1.27mm) pitch and it's easy.
Done it / last 2 years - No.
Set up to do it - No.
I don't have a feel for the level of difficulty in working with 0.5mm
pitch parts. For example can you do it with a soldering iron (like I
use for 0.05" pitch
Hi
Just a show of hands sort of thing. It comes up each time we talk about
projects and never really gets answered. Rather than trying to work it out
as a part of a project, let's see if it can be addressed by it's self.
How many people are willing to solder up a project with multiple 0.5m
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