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

[Roman]

There are ESD safe boxes like that, and they are all black because of graphite used in plastic.  Respected supplier will proudly shout about ESD-safe feature at the first word in webpage. Not sure about those from Ali, it may be just black-tinted plastic. ESD safe were about 2-3 times more expensive than plain colouroed version of the same size from the same maker.   I have tried every way of storing SMD and now the one that works for me is to keep them on tape in original zipper bag from the store, put in a long box full of them. There's a space on the sticker for full manufacturer model, all specs, date of purchase, source and price.   Roman  Dnia 19 lipca 2017 20:00 charlie wallace <charlie at finitemonkeys.com> napisał(a):  has anyone found out if those little boxes are really esd safe, never  got a good answer, they often advertise as for SMD, but that means  nothing   there is also these  www.aliexpress.com www.aliexpress.com   On Wed, Jul 19, 2017 at 10:45 AM,  <sleepy_dog at gmx.de> wrote:   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:  www.picclickimg.com www.picclickimg.com   Call one pile of them e.g. "the 0805 resistor box", click the small things  together in an arrangement which makes sense for the kinds 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 synt 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> 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> wrote:   This post sums up why I simply will not do SMD by hand.  Not... worth...  the... frustration.      ______________________________  Synth-diy mailing list   Synth-diy at synth-diy.org  synth-diy.org synth-diy.org     ______________________________  Synth-diy mailing list   Synth-diy at synth-diy.org  synth-diy.org synth-diy.org    ______________________________  Synth-diy mailing list   Synth-diy at synth-diy.org  synth-diy.org synth-diy.org
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