[sdiy] Need help with a SMD kit (OT?)

[sleepy_dog at gmx.de]

Ok, so you flip at least once per component height class of your boards ;)
And fiddle with wires / bend them etc to make them go in.
And then cut them after soldering.

 >> For SMD, one has to get the resistor off of a tape.  9 times out of 
10, I drop the resistor during this process <<

This, you needn't do.
Get some of those:
https://www.picclickimg.com/d/l400/pict/371330932745_/1x-100-Leer-Container-Box-blau-f%C3%BCr-SMD.jpg

Call one pile of them e.g. "the 0805 resistor box", click thesmall 
things together in an arrangement which makes sense for thekinds of 
values you have.
Then buy 200 (or whatever you like) of each value and pour them in the 
correct boxes.
Those "hatches" are available as self-closing by spring.

Do the same for other components commonly used.

Then you are set up for building:
With good (perhaps angled) pointy tweezers, you grab into the box that 
has the label of the component to solder, and grab one of the parts, put 
it on the PCB, there you go.

Not anywhere near as fumbly as buying it on reel and then cutting them 
out individually ;-)

Steve


Am 19.07.2017 um 17:50 schrieb David G Dixon:
> What's all this "flipping the board over" and "parts falling out" 
> business? I stuff all resistors and diodes, hold a small piece of wood 
> over them, flip once and set down on the piece of wood, solder all 
> joints, then snip clean.  Then I do all sockets, again, stuff, flip 
> once, solder all joints.  Then I finish with all the random parts that 
> have random heights. Soldering TH joints takes about 2 seconds per 
> joint once you get a rhythm going.  Plus, I can stuff parts in front 
> of the TV in my easy chair, then carry the stuffed board out to the 
> garage for soldering if I want to.  That's my usual plan when it's too 
> warm or cold in the garage.
> Parts do require some preparation, but I lay out all of my boards so 
> that the resistor leads are 0.4" apart, and for the standard 1/4W 
> resistor, all this requires is to bend the leads at a 90-degree angle 
> to the resistor body with my fingers.  Then I snip the leads to about 
> 1 cm.  Sometimes I bend all then snip all, and sometimes I bend and 
> snip each one at a time. This I consider a part of the procedure of 
> retrieving the resistors from their respective packages.
> For SMD, one has to get the resistor off of a tape.  9 times out of 
> 10, I drop the resistor during this process.  With TH, I can prepare 
> all of my parts, lay them out on the bench if I want to and compare 
> them with my BOM.  Then I can stuff them in a completely organized 
> fashion.  I always find the stuffing of my own boards to be a 
> completely pleasurable process, very relaxing.  I could literally do 
> it all day (and I plan to after I retire from my day job in 2020).
>
>     ------------------------------------------------------------------------
>     *From:* Synth-diy [mailto:synth-diy-bounces at synth-diy.org] *On
>     Behalf Of *mark verbos
>     *Sent:* Wednesday, July 19, 2017 2:49 AM
>     *To:* synth-diy at synth-diy.org
>     *Subject:* Re: [sdiy] Need help with a SMD kit (OT?)
>
>     I’m with Roman. Sure, I have hot tweezers, hot air, a pick and
>     place machine….
>
>     But I switched entirely to SMD about 10 years ago. Initially used
>     1206 passives. I will NEVER go back. It takes way more time to
>     assemble through hole, with all the flipping the board over and
>     parts falling out/sticking up too high. The PCBs are way more
>     cramped and annoying to layout in TH. I build all of my prototypes
>     with mostly 0603 passives by hand using nothing more than a fine
>     tipped iron. Also, I use lead free, organic water clean flux. I
>     wash the PCB with hot distilled water and the results look like a
>     professional machine built PCB. I don’t mess with breadboards, I
>     just go from a drawing to a PCB. When something needs to be
>     reworked, I use wire-wrap wire and hang parts off the board. Then
>     make the changes to the PCB file for the future.
>
>     Do a few projects with it, and you’ll never go back. I promise.
>
>
>     Mark
>
>
>>     On Jul 19, 2017, at 1:58 AM, David G Dixon <dixon at mail.ubc.ca
>>     <mailto:dixon at mail.ubc.ca>> wrote:
>>
>>
>>     SMD was developed for robots.  I don't feel a need to hone a
>>     skill to compete with a robot, thanks.
>>
>>>
>>>     On 18 Jul 2017, at 22:23, David G Dixon <dixon at mail.ubc.ca
>>>     <mailto:dixon at mail.ubc.ca>> wrote:
>>>
>>>>     This post sums up why I simply will not do SMD by hand.  Not...
>>>>     worth... the... frustration.
>>>>
>
>
>
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