Monday, February 16, 2015

EGWU pcb assembly: attempt #3

Ok here is the deal. I need more than 1 prototype. Ideally Id like to build two more boards before I start board test/bootstrap and firmware/software development. Its been suggested to me that using the heat gun for reflow is a viable process - and it looks interesting since I can assemble the board incrementally.

To that end here is my rig


I had hoped to use this Monday vacation time to finish up (only six more SMD IC's to place) but I am nursing a fever at the moment so here is to another wasted holiday ;( However I am sure Ill wrap this up this coming weekend or even this afternoon if I wake up feeling better

I might just use the hot plate again for prototype #3 (attempt #4). One thing thats going to help cut down on the time to place parts (manual labor) is having sorted the SMD parts (like 0603 resistors, caps, inductors, LED) into the two cases below (which I picked up at a 99c store). I might have even purchased the pill dispensing boxes I see at pharmacies or shoprite. They would work just as well.

Another thing is printing out 10-15 pages of the silk screen layer. On one page I circle all the 0.1uf parts on another: the 2k parts and on yet another: the 4.7pf parts and so on and so forth. For parts which are less than 10 in number I place more than one on a single page. This makes parts placement easier since I know how much of a certain part I need and I can remove and array them before me. pick and place until done before moving on to another part


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