[Coco] An inside look at producing the COCOVGA

tim franklinlabs.com tim at franklinlabs.com
Mon Jul 18 14:10:06 EDT 2016


   I'm curious, who did the paste mask? If it was OSH ParkI didn't know
   they did paste masks. What did it cost if you don't mind me asking?
   Last paste mask I had done was over $450.00. Although it was quite


     On July 18, 2016 at 11:12 AM Kip Koon <computerdoc at sc.rr.com> wrote:

     Hi Ed,
     I am definitely impressed!
     How much time did it actually take to solder those 4 chips? I can
     see how you prefer to solder surface mount parts. I like your slide
     method of soldering. You make it look to easy. Is it really that
     easy not counting the sped up video? How long did it take to get
     used to soldering this way? It sure helps to keep the PCB sizes
     down. What type of soldering paste do you use? I think that's all
     for now. Take care my friend.

     Kip Koon
     computerdoc at sc.rr.com

     -----Original Message-----
     From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of
     Sent: Sunday, July 17, 2016 11:53 PM
     To: CoCoList for Color Computer Enthusiasts
     Subject: Re: [Coco] An inside look at producing the COCOVGA

     It is tedious at first, but I've gotten used to it.
     I actually prefer surface mount over through-hole in most cases now.

     Here's the next stage of assembly for the COCOVGA boards, also
     tedious. :)

     The fine pitch ICs on the top side (.5mm pin spacing). My drag
     soldering technique is a little slow, but hey, it gives me great
     results! :D

     * Ed

     On Jul 17, 2016, at 5:29 PM, Barry Nelson
     <barry.nelson at amobiledevice.com> wrote:

     I don't think I ever want to assemble a surface mount project! Man
     is that tedious!

     Zippster zippster278 at gmail.com
     Sun Jul 17 11:47:21 EDT 2016
     Hello guys,

     For those who are interested, here's a little look at part of the
     assembly process for the first production COCOVGA boards. These will
     fit American motherboard CoCo2s.

     It's a ~7.5 min video (no audio)

     The FPGA programming is still being refined, but I'm getting a
     jump-start on production as that's being completed.
     * Ed

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