[time-nuts] OT stuffing boards: was GPS interface/prototyping board

Bob Camp kb8tq at n1k.org
Fri Jun 24 14:18:32 EDT 2016


If you are doing a board with a few hundred parts on it (as earlier mentioned). And have designed
a “3D printer” pick and place that runs one reel at a time. And are running the printer slow to keep
everything from going all over the place. And have a manual reel advance (no feeder) …. 

I can easily see you getting into a “put it away for today” situation. You can beat a simple system like that 
(speed wise) with a good manual vacuum pickup and some modest pre-organization of parts. 


> On Jun 24, 2016, at 9:45 AM, Oz-in-DFW <lists at ozindfw.net> wrote:
> On 6/23/2016 9:36 PM, Bob Camp wrote:
>> Hi
>> The gotcha with “really slow” is that once you print the solder paste on the board, it has a very 
>> limited “open air” life. If you don’t get the board done fairly quickly, your soldering quality can
>> suffer quite a bit.
>> Bob
> For most of the paste formulations I've had no trouble with several
> hours of working time. So you need to get at it, but really don't end up
> hurting yourself, but can't leave it overnight. .
> -- 
> mailto:oz at ozindfw.net    
> Oz
> POB 93167 
> Southlake, TX 76092 (Near DFW Airport) 
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