[hackpgh-discuss] Re: custom circuit boards?

  • From: jeff kramer <jeffkramr@xxxxxxxxx>
  • To: hackpgh-discuss@xxxxxxxxxxxxx
  • Date: Wed, 7 Sep 2011 21:42:15 -0400

Actually, never mind... <_<

Apologies.

On Wed, Sep 7, 2011 at 9:20 PM, jeff kramer <jeffkramr@xxxxxxxxx> wrote:
> I'm in for a Prusa board set.
>
> On Wed, Sep 7, 2011 at 9:18 PM, j. eric townsend <jet@xxxxxxxxxxxx> wrote:
>> cool!  I've never done the SMT skillet thing, but I scored an electronic
>> skillet at BB&B that should do the trick.  It claims to have an accurate
>> temp setting, but I've yet to calibrate it.
>>
>>
>>
>> On 9/7/11 21:15, Matthew Beckler wrote:
>>>
>>> I would like to get a set of prusa electronics made up so I can build a
>>> prusa (probably a hybrid with imperial rods and nuts for the frame,
>>> metric everything else).
>>>
>>> I've done smt skillet soldering once before on a regular electric range,
>>> it wasn't too bad at all. We were using SOIC chips and 1206 leds (so
>>> pretty big on the led front, but 0805 isn't much harder). I could
>>> definitely help out with the smt soldering part.
>>>
>>> -Matthew
>>>
>>> On 09/07/2011 08:42 PM, j. eric townsend wrote:
>>>>
>>>> heya,
>>>>
>>>> Was going to bring this up at the meeting but I was stuck at work...
>>>>
>>>> Ben/Birdbrain is going to do some trial PCB runs.  I was thinking of
>>>> getting a few sets of reprap gen6 (very professional) or gen7 (faster
>>>> stepper but ugly) boards cut and was wondering if anyone else would be
>>>> interested in enough boards to make their own Prusa (or US Prusa).
>>>>
>>>> I could be convinced to do an order for MakerBot/ThingOMatic boards if
>>>> someone is willing to help me run the electric skillet for a group SMD
>>>> session....
>>>>
>>>> --jet
>>>>
>>>>
>>>> ----------------------------------------------------------
>>>>
>>>>
>>>> We're going to do a trial run of a PCB Service this week.  For those
>>>> familiar with the concept, we take all of your orders, panelize them and
>>>> send them off to a fabrication house in China who then makes us the big
>>>> panel.  The panel gets shipped back to the US where we separate the
>>>> boards and do any internal routing necessary.  You can then pick up your
>>>> board at one of our scheduled locations (Fridays at HackPgh, Saturdays
>>>> at Assemble).
>>>>
>>>> Here's the specs:
>>>>
>>>> 2 layer boards - 0.062" FR4 material
>>>>
>>>> 2 Layer limits:
>>>> 8mil spacing minimum
>>>> 8mil traces minimum
>>>> 15mil minimum drill size
>>>> 500mil maximum drill size
>>>>
>>>> No v-scoring, only drill files are sent to the fab house
>>>>
>>>> Internal routes are OK -- 1/8" bit diameter on this panel.  Rectangular
>>>> boards only this time.  We'll work on more interesting shapes and
>>>> smaller internal routes later.
>>>>
>>>> Green soldermask top&  bottom, Silkscreen top only.
>>>>
>>>> 1oz Copper
>>>>
>>>> No limit on the number of vias, pads or components.
>>>>
>>>> Boards are billed at $2.50 a square inch, no setup fee, you get one
>>>> copy.  1 square inch is the minimum billing, but we'll charge on the
>>>> exact size (rounded up to the next penny).
>>>>
>>>> The gerber files we need are:
>>>> .BOR - Board Outline
>>>> .GBL - Bottom Copper
>>>> .GBS - Bottom Soldermask
>>>> .GTL - Top Copper
>>>> .GTO - Top Silkscreen
>>>> .GTS - Top Soldermask
>>>> .DRD - Excellon Drill File
>>>>
>>>> All others will be discarded.
>>>>
>>>> If you use Eagle, you can grab this cam file:
>>>>
>>>> http://birdbrainlabs.us2.list-manage.com/track/click?u=a3697f0eec54ac61d4c3007e1&id=e7a72b07be&e=8030b957c2
>>>> and that will get you all of this.
>>>>
>>>> Zip up your gerber and e-mail it to pcb@xxxxxxxxxxxxxxxxx .  Panel 0
>>>> will close when it's full or at 11:59pm on Thursday September 8th.  We
>>>> should have the boards back and depanelized on the 23rd.  (Worst case,
>>>> we'll have them on the 26th, and I'll have some way to pick them up)
>>>>
>>>> Let me know if you have any questions!
>>>>
>>>> Thanks,
>>>> Ben
>>>>
>>>>
>>>>
>>>
>>
>>
>> --
>> J. Eric Townsend
>> design: www.allartburns.org; hacking: www.flatline.net;  HF: KG6ZVQ
>> PGP: 0xD0D8C2E8 AC9B 0A23 C61A 1B4A 27C5 F799 A681 3C11 D0D8 C2E8
>>
>>
>

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