[hackpgh-discuss] Re: custom circuit boards?
- From: jeff kramer <jeffkramr@xxxxxxxxx>
- To: hackpgh-discuss@xxxxxxxxxxxxx
- Date: Wed, 7 Sep 2011 21:20:31 -0400
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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