Topic: Community Miner Design Discussion - page 14. (Read 34221 times)
There are no news from Bitfury , avalon is the second choice did you both with kilo managed to get chip docs or you just do reverse engineering ?
Well this is a sub-scale Avalon-based proof of concept commissioned by Kilo, though I would like to show it off once it works. Very unlikely to become an actual product for anyone but him.
And since I'm not making any controller boards, at least for this project...
Just doing a quick check, Sunstone quickturn looks like 1oz copper and I don't see a way to change that on the online form. And for what I want we're looking at around $900 for half a dozen boards. $900 from Full-feature will get me a heavier copper, ten boards, and only a couple days later. SEEED will get me heavier copper still, and ten boards, and a couple days later, for $300. That's gonna be hard to argue with.
Just doing a quick check, Sunstone quickturn looks like 1oz copper and I don't see a way to change that on the online form. And for what I want we're looking at around $900 for half a dozen boards. $900 from Full-feature will get me a heavier copper, ten boards, and only a couple days later. SEEED will get me heavier copper still, and ten boards, and a couple days later, for $300. That's gonna be hard to argue with.
So seed is the most copper at the best price?
Yeah sounds good.
Let us know when you order.
That way we can all ask are we there yet?
And since I'm not making any controller boards, at least for this project...
Just doing a quick check, Sunstone quickturn looks like 1oz copper and I don't see a way to change that on the online form. And for what I want we're looking at around $900 for half a dozen boards. $900 from Full-feature will get me a heavier copper, ten boards, and only a couple days later. SEEED will get me heavier copper still, and ten boards, and a couple days later, for $300. That's gonna be hard to argue with.
Just doing a quick check, Sunstone quickturn looks like 1oz copper and I don't see a way to change that on the online form. And for what I want we're looking at around $900 for half a dozen boards. $900 from Full-feature will get me a heavier copper, ten boards, and only a couple days later. SEEED will get me heavier copper still, and ten boards, and a couple days later, for $300. That's gonna be hard to argue with.
Say, got a question. Who's the best domestic quick-turn prototype PCB fab? We've gotten prototype PCBs made by SEEED, but they're in China - which is grating for obvious patriotic reasons and because it makes shipping suck for any kind of speed.
I use http://www.pcbunlimited.com
Their Panel share is ridiculously cheap for prototyping if you can wait 5 days, but their quick turn is not too bad either.
Say, got a question. Who's the best domestic quick-turn prototype PCB fab? We've gotten prototype PCBs made by SEEED, but they're in China - which is grating for obvious patriotic reasons and because it makes shipping suck for any kind of speed.
I use http://www.pcbunlimited.com
Their Panel share is ridiculously cheap for prototyping if you can wait 5 days, but their quick turn is not too bad either.
We've used Sunstone for all our PCB batches that weren't the DPS2K boards (we opted for someone who specialized in heavy copper) but I've not looked into their quick-turnaround service. I did recently read something of theirs on 2-layer prototyping, but not 4-layer.
Say, got a question. Who's the best domestic quick-turn prototype PCB fab? We've gotten prototype PCBs made by SEEED, but they're in China - which is grating for obvious patriotic reasons and because it makes shipping suck for any kind of speed.
I've always used Sunstone Circuits http://www.sunstone.com/pcb-products along with their PCB123 software.Home for them is in Oregon and with turnaround of 24hrs (if ya pay for it) or a week production has to be in the USA.
Great company.
Say, got a question. Who's the best domestic quick-turn prototype PCB fab? We've gotten prototype PCBs made by SEEED, but they're in China - which is grating for obvious patriotic reasons and because it makes shipping suck for any kind of speed.
less than 500w per tera is really a great result, i cna even begin to mine again bitcoin directly with that ratio
i hope this time they do not make huge miners with 10 tera and kill the casual mining with 3kw at home
Wha'? i hope this time they do not make huge miners with 10 tera and kill the casual mining with 3kw at home
The Antminer S7 is <280W per Terahash. @Amph, 500w/TH is S5 specs.
Did you mean 50?
I'd be happy if the finished product (with Bitfury chips) was between 90 - 110W per Tera.
goal is 70 to 120 as stated by sidehack . that wide spread is very helpful for adding life to the miner.
less than 500w per tera is really a great result, i cna even begin to mine again bitcoin directly with that ratio
i hope this time they do not make huge miners with 10 tera and kill the casual mining with 3kw at home
Wha'? i hope this time they do not make huge miners with 10 tera and kill the casual mining with 3kw at home
The Antminer S7 is <280W per Terahash. @Amph, 500w/TH is S5 specs.
Did you mean 50?
I'd be happy if the finished product (with Bitfury chips) was between 90 - 110W per Tera.
Just throwing this out there, but I won't use that part unless I can't find something that was actually designed for board mounting instead of spliced inline on a wiring harness. Heck of a big hassle, not worth talking about.
side note:
sure does not help us titan users with the 2 plug psu y adapters and the overclocking of those machines (2x) by knc to 'ahem' stop the returns via RMA's imho
by the time a fuse went with one of these babies it is too late indeed
back to regularly scheduled community miner design discussion
Just throwing this out there, but I won't use that part unless I can't find something that was actually designed for board mounting instead of spliced inline on a wiring harness. Heck of a big hassle, not worth talking about.
I was in a rush and thought that was a blade fuse! Maybe this one? Their list of current excess (pardon the pun) is here
this one is 2 usd it is on your list
http://www.allelectronics.com/make-a-store/item/fhp-31/weatherproof-atc-blade-fuse-holder-10-ga-wire/1.html
with a 10 gauge wire and a protective cover it is a great item. but it is 2 usd
we have a link for bare bones 1000 for 84 bucks you need two so 17 cents. I can tell you your item is less work and pretty good quality,
but 2 usd vs 17 cents I think the 17 cents deal would be picked.
now if you found that 2 dollar item for 50 cents it would be good since it is less work the the 17 cent deal.
and sidehack may still prefer the 17 cent deal . I have not done as much of this work as he has. he knows a bit more then me.
In my electronic tinkerings I've bought stuff from All Electronics.
Really good pricing because they buy overstocks, discontinued items, and production overruns.
As such, a manufacturer of boards might have a concern that spec'ed parts from them may not always be available or available at the current cost.
Beyond price I'd be thinking about the supply chain and all that brings to the table.
Just sayin'
that is also a good point . lets say for the sake of argument . 500 bitfury boards get built and that nice looking 2 usd item is available up to 150 pieces then no more can be had.
even though it is a superior item it may only be 50, 100, 200 of them.
Would be nice to try to source it in bulk at a good price. 10 gauge wire can handle 30 amps no sweat.
I was in a rush and thought that was a blade fuse! Maybe this one? Their list of current excess (pardon the pun) is here
this one is 2 usd it is on your list
http://www.allelectronics.com/make-a-store/item/fhp-31/weatherproof-atc-blade-fuse-holder-10-ga-wire/1.html
with a 10 gauge wire and a protective cover it is a great item. but it is 2 usd
we have a link for bare bones 1000 for 84 bucks you need two so 17 cents. I can tell you your item is less work and pretty good quality,
but 2 usd vs 17 cents I think the 17 cents deal would be picked.
now if you found that 2 dollar item for 50 cents it would be good since it is less work the the 17 cent deal.
and sidehack may still prefer the 17 cent deal . I have not done as much of this work as he has. he knows a bit more then me.
In my electronic tinkerings I've bought stuff from All Electronics.
Really good pricing because they buy overstocks, discontinued items, and production overruns.
As such, a manufacturer of boards might have a concern that spec'ed parts from them may not always be available or available at the current cost.
Beyond price I'd be thinking about the supply chain and all that brings to the table.
Just sayin'
I was in a rush and thought that was a blade fuse! Maybe this one? Their list of current excess (pardon the pun) is here
this one is 2 usd it is on your list
http://www.allelectronics.com/make-a-store/item/fhp-31/weatherproof-atc-blade-fuse-holder-10-ga-wire/1.html
with a 10 gauge wire and a protective cover it is a great item. but it is 2 usd
we have a link for bare bones 1000 for 84 bucks you need two so 17 cents. I can tell you your item is less work and pretty good quality,
but 2 usd vs 17 cents I think the 17 cents deal would be picked.
now if you found that 2 dollar item for 50 cents it would be good since it is less work the the 17 cent deal.
and sidehack may still prefer the 17 cent deal . I have not done as much of this work as he has. he knows a bit more then me.
Current rating is too low, we require 25A minimum with 30A (for overclockers) as ideal. Also cartridge fuses ( eg. any AG or SFE) suck at high currents, biggest problem with them is the contact areas on the clips and cartridges, get the slightest bit of oxidation and problems start happening fast.
...
Not sure I've ever seen an automotive blade-type fuse mount for a circuit board, but they DO make sense and should be cheap if they exist, and the fuses themselves are quite common in many ratings (specifically including 20 and 30 amp).
...
Not sure I've ever seen an automotive blade-type fuse mount for a circuit board, but they DO make sense and should be cheap if they exist, and the fuses themselves are quite common in many ratings (specifically including 20 and 30 amp).
...
This could be a candidate, trouble is they don't specify the rating of the socket.
My favorite surplus-turned-discount electronic -components reseller came up with a few options, but this is the cheapest and one of the more appropriate (not weatherproof or dual fuse)
This could be a candidate, trouble is they don't specify the rating of the socket.
16 dollars is CRAZY BLOODY EXPENSIVE for a fuse socket/holder.
Should be able to get a 20-30 amp CIRCUIT BREAKER for not a heck of a lot more than that.
16 dollars is CRAZY BLOODY EXPENSIVE for a fuse socket/holder.
Should be able to get a 20-30 amp CIRCUIT BREAKER for not a heck of a lot more than that.
price is for 50, so 32 cents each
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