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Author Topic: [Group Buy] BFL ASICs, + Board Design Underway.  (Read 15362 times)
MrTeal (OP)
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June 16, 2013, 05:23:05 AM
 #41

What will the cost be for PCB assembly?
Unknown at this point, though we should have an answer soon. We're still getting quotes on things like the PCBs and assembly. It should be very competitive on a per hash basis with other board offerings though.
Bitbird
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June 16, 2013, 09:46:01 AM
Last edit: June 17, 2013, 04:25:33 PM by Bitbird
 #42

I'm interesting. Please add me to the list.
Assembled them in Taiwan would be cheap!

Update:
Have 32 chips credits not 16.

TheSpiral
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June 16, 2013, 09:51:20 AM
 #43

I'm interested... I'll jump on board if/when chips are proven to be shipping.
Wardan_reloadeD
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June 16, 2013, 10:29:53 AM
 #44

I have 32 credits for sale at 6btc. PM me.
loufiethecat
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June 16, 2013, 10:38:39 AM
 #45

I'm extremely interested in the board designs... willing to share costs and workload to help this eventuate...

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MXRider
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June 16, 2013, 02:34:28 PM
 #46

Interested but I would like to see faster units. Using CPU coolers is a great idea. I've got chip credits for over 1TH.
minternj
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June 16, 2013, 04:06:25 PM
 #47

What country are you based in?

Warning about Nitrogensports.eu
https://bitcointalk.org/index.php?topic=709114.0
Swimmer63
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June 16, 2013, 04:16:41 PM
 #48

Interested in a small 8-12 chip buy.  But would like to see more concrete movement on miner design and manufacture.
MrTeal (OP)
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June 16, 2013, 05:16:17 PM
 #49

I'm interesting. Please add me to the list.
Assembled them in Taiwan would be cheap!

[Edit]
Have 16 chips credit.
I will. As I said, I am investigating options for assembly. It's a balance between getting a better price and the extra time it would take to ship the chips to Taiwan/China and then have them shipped back to us for distribution. It will depend on the savings, I don't think many miners would want to save $5 or $10 on a board if it adds a week to the leadtime.
Lucko
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June 16, 2013, 05:34:53 PM
Last edit: June 16, 2013, 07:03:32 PM by Lucko
 #50

Interested. Are there any shipping limitations? Slovenia, EU?

EDIT: not sure if you have this data but how much is necessary to pay at once? Full or half price?
minternj
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June 16, 2013, 06:43:33 PM
 #51

PCB scematics released
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html

Warning about Nitrogensports.eu
https://bitcointalk.org/index.php?topic=709114.0
crazyates
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June 16, 2013, 08:03:24 PM
 #52

Anyone figured out how expensive it would be to build and populate a clone board?

Tips? 1crazy8pMqgwJ7tX7ZPZmyPwFbc6xZKM9
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intron
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June 16, 2013, 08:10:59 PM
 #53


Looks like they did via in BGA pad. Why?
Heat propagation?

intron
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June 16, 2013, 09:57:15 PM
 #54


Yes, heat transfer would be my guess.

1NDoRoTapFZNiUhzTPyFdKib66QLJfmcuR
MrTeal (OP)
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June 17, 2013, 06:03:58 AM
 #55

It also looks like they leave the chip thermal diodes unconnected, perhaps there is an issue with them.

I have been reviewing the documentation as well as my own plans, and it seems like the cost of assembly and parts for a 4-6 chip miner with good headroom (similar to the power delivery capability of BFL's reference Jalapeno or 1/2 of a Longboard) would be in the range of $200, plus whatever heatsink is used. Commodity heatsinks capable of cooling 60W without a problem aren't terribly expensive though, a CM Hyper212 or similar is overkill and those are easy to find for less than $30. The exact price will depend on quantities, but I would estimate that at this time that price won't be off by more than 50%.

I should know better on the price as the design gets finalized and the number of people becomes clearer.
Lucko
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June 17, 2013, 06:55:16 AM
 #56

How far are we from taking the orders? And what about shipping to EU?
Dagger75
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June 17, 2013, 08:45:50 AM
Last edit: June 17, 2013, 06:05:47 PM by Dagger75
 #57

Hey MrTeal, I'm in for atleast 40 chips and have ~168 Chip Codes for sale for anyone interested $7.50 each


EDIT: 8 BFL codes sold to Lucko. Great transaction

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22naru
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June 17, 2013, 12:28:55 PM
 #58

i'm in with 16 chips. looking forward for more info./news.cheers
filharvey
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June 17, 2013, 01:10:49 PM
 #59

I'm in for putting my chip codes towards this, and purchasing a couple of devices. I have codes for 32 chips.

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Zubilica
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June 17, 2013, 03:39:59 PM
 #60

What country are you based in?

What country are you based in? +1
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