What is the point of having 3 almost empty board and a cell? Joep
2010/11/3 funlw65(Vasi) <[email protected]>: > Here: > http://jpmandon.blogspot.com/2010/11/partybot.html > is an example of how to use Jaluino CELL in a real application. > Warning, this is not for our PCB guru :) . > > Vasi > > On Nov 3, 12:05 pm, Sebastien Lelong <[email protected]> > wrote: >> I think you need to cut caps' wires ends after soldering :) >> >> Cheers, >> Seb >> >> 2010/11/3 funlw65(Vasi) <[email protected]> >> >> >> >> > This is how it looks underside: >> >http://picasaweb.google.com/funlw65/20100513#5535259872597475378 >> >> > On Nov 2, 5:56 pm, mattschinkel <[email protected]> wrote: >> > > The actual parts are cheaper in SMD as well. >> >> > > Matt. >> >> > > On Nov 2, 5:27 am, Oliver Seitz <[email protected]> wrote: >> >> > > > > SMD versions would be cheaper to manufacturer. >> >> > > > That's true. I've once asked my PCB assembling company, and they told >> > me how PCBs are populated: >> >> > > > 1. solder paste is applied to the top side for SMDs using a stencil >> > > > 2. top-side SMDs are placed in the paste >> > > > 3. top-side SMDs are soldered (infrared, hot-air or the like) >> > > > 4. bottom-side SMDs are glued in place without solder paste >> > > > 5. the glue is dried. This takes its time and therefore costs money >> > > > 6. top-side THTs are placed >> > > > 7. top-side THTs and bottom-side SMDs are soldered (possibly selective, >> > wave soldering or the like) >> > > > 8. bottom-side THTs are placed and soldered by hand. That's expensive, >> > of course. >> >> > > > So, cheapest is SMD with parts on one side only. Next is THT only. Then >> > come mixed SMD and THT with all parts on one side. Then SMD on both sides >> > plus THT on top side only. The most expensive are PCBs with SMD and THT, >> > both on both sides. >> >> > > > I'm not sure where to put "SMDs on both sides, no THTs" as it could >> > well be that no glue is necessary then. >> >> > > > All of this only applies to automatically populated PCBs in perhaps 100 >> > pieces or more. For low quantities, THT might even be cheaper as no >> > solder-paste stencil has to be made. >> >> > > > Greets, >> > > > Kiste >> >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "jallib" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]<jallib%[email protected]> >> > . >> > For more options, visit this group at >> >http://groups.google.com/group/jallib?hl=en. >> >> -- >> Sébastien Lelonghttp://www.sirloon.nethttp://sirbot.org > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/jallib?hl=en. > > -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
