Sydney - Klondike assembly EOI - page 2.

emanymton

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Quote from: Defkin on May 22, 2013, 06:06:30 AM

Quote from: emanymton on May 21, 2013, 09:40:31 PM

I like your idea, it looks to have a lot of promise, particularly for cooling as many boards as mine.

Is there a u-bolt that would suit the holes on the klondike?
Also would the fact that there is a through hole component make it infeasible for the klondike?

I don't quite understand what you guys mean about surface area.
Are you talking about the interior surface area that is in contact with the water?

Also instead of the nozzle, maybe you could consider something like this: http://koolance.com/dual-video-connector-adjustable-1-slot-spacing
Doesn't have to be that one, I'm sure there's standard ones you can get from a hardware store
All you would need to do is weld the cap on the end, then drill a suitable hole and tap a thread inside it.
I would trust a screw in, more than hoseclamps, even though the pressure probably isn't that high so it may not matter.
Also you could place the holes on the top rather than either end which tom_o was suggesting.

I have given up on u bolts. The boards would have to extend 10mm past the area that needs cooling and neither board layout is doing that.
My work around is to use 3mm thick flat bar, drill and tap mounting holes then tack weld the flat bar to the rectangular tube.

The take offs could be a threaded fitting or anything for that matter. I prefer the clamp fitting over threaded as aluminum is not the most durable material and I would not trust the thread in so far as me accidentally stripping it. Using a more durable material is also out due to galvanic series.

Mounting the take off at the top. The positioning is not a big deal once the air is out but I was planning mounting on top to make it easier to bleed anyhow. Drawings are just to get the idea across not technically accurate yet

The surface area was for the inside. The more surface area you have in contact with the water the more heat is exchanged, The idea of the mesh inside was to increase surface area and turbulence.

This is a sketch of my latest plan so far, I plan on having the boards line both sides and that is another good reason to dump the u bolt idea:

That looks really good. I'm going to seriously consider doing something like this for my boards.
Would there be a layer of thermal paste between the flat bar and the tube?

Bicknellski

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Activity: 924

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Quote from: kano on May 21, 2013, 09:28:54 AM

Just an FYI ... I live in Sydney

So if you want to ensure continued support by the cgminer devs - ckolivas and myself - if you can provide one to each of us we can of course ensure we can provide proper and ongoing support for them.

The Avalon software is already under heavy development by ckolivas at the moment for the switch over to USB.

... and being in Sydney myself ... you can get one to me the same day they are ready and I can test and work on cgminer if required to make sure everyone will have it working as soon as possible if there are any problems then and in the future
ckolivas lives in Aus also

BKKCoins is going to do the develop of the mining software as part of the Klondike board right as open source might be better to support his work on this and keep your boards in your hands. Why not buy get your own Klondike and support open development for the DIYers? This isn't Avalon / BFL I think there are plenty of people who can develop and support software and firmware without having to give away any boards.

erk

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Activity: 826

Merit: 500

I am after assembled boards without heatsinks, I am going to work out my own cooling solution.

Bicknellski

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Activity: 924

Merit: 1000

Watching... good luck guys hope it goes well.

Defkin

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Activity: 80

Merit: 10

Quote from: emanymton on May 21, 2013, 09:40:31 PM

I like your idea, it looks to have a lot of promise, particularly for cooling as many boards as mine.

Is there a u-bolt that would suit the holes on the klondike?
Also would the fact that there is a through hole component make it infeasible for the klondike?

I don't quite understand what you guys mean about surface area.
Are you talking about the interior surface area that is in contact with the water?

Also instead of the nozzle, maybe you could consider something like this: http://koolance.com/dual-video-connector-adjustable-1-slot-spacing
Doesn't have to be that one, I'm sure there's standard ones you can get from a hardware store
All you would need to do is weld the cap on the end, then drill a suitable hole and tap a thread inside it.
I would trust a screw in, more than hoseclamps, even though the pressure probably isn't that high so it may not matter.
Also you could place the holes on the top rather than either end which tom_o was suggesting.

I have given up on u bolts. The boards would have to extend 10mm past the area that needs cooling and neither board layout is doing that.
My work around is to use 3mm thick flat bar, drill and tap mounting holes then tack weld the flat bar to the rectangular tube.

The take offs could be a threaded fitting or anything for that matter. I prefer the clamp fitting over threaded as aluminum is not the most durable material and I would not trust the thread in so far as me accidentally stripping it. Using a more durable material is also out due to galvanic series.

Mounting the take off at the top. The positioning is not a big deal once the air is out but I was planning mounting on top to make it easier to bleed anyhow. Drawings are just to get the idea across not technically accurate yet

The surface area was for the inside. The more surface area you have in contact with the water the more heat is exchanged, The idea of the mesh inside was to increase surface area and turbulence.

This is a sketch of my latest plan so far, I plan on having the boards line both sides and that is another good reason to dump the u bolt idea:

DobZombie

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Activity: 896

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Former curator of The Bitcoin Museum

I've purchased 240 chips in an overseas group buy, so I'll be needing chip soldering and 15 boards.

If anybody would provide this service in Australia at a reasonable cost, I would definitely be keen to purchase.

No case necessary! I like to build custom equipment out of milk crates etc

erk

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Activity: 826

Merit: 500

Quote from: emanymton on May 21, 2013, 11:38:15 PM

I might be, but it would depend heavily on timing and price.
The most important thing is getting my units hashing as quickly as possible.

True, but the most important thing really is getting the chips out of Avalon. Everything else is a pipe dream until they start shipping.

emanymton

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Activity: 219

Merit: 106

I might be, but it would depend heavily on timing and price.
The most important thing is getting my units hashing as quickly as possible.

dobber

newbie

Activity: 19

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Another chance of collaborating with emanymton?

https://bitcointalk.org/index.php?topic=211683.new#new

I am in Melbourne, and I am looking at 1, maybe 2 boards only with assembly.

emanymton

full member

Activity: 219

Merit: 106

Quote from: Defkin on May 21, 2013, 08:54:36 AM

Quote from: emanymton on May 20, 2013, 03:57:37 AM

Thanks for the input, everythings still very tentative till the design is finalised then I can start to shop around.
It'll be interesting to see how fast we can get these boards put into action.
I can't imagine the components being too much cheaper than mouser but would love if they were.
Hopefully the through hole components don't affect the overall assembly price too much.
If anybody knows any good assemblers or a place to get the heatsinks domestically I think we could all benefit.

I am going to be water cooling mine, I have not worked all the details out yet but it will be simple using off the shelf parts.
I have an avalon now and it puts out a lot of heat and noise.

Here is my initial idea. Its looking like I will need to make an adapter plate from flat bar and will mount broads both side of the tube.
https://bitcointalksearch.org/topic/m.2187398

I like your idea, it looks to have a lot of promise, particularly for cooling as many boards as mine.

Is there a u-bolt that would suit the holes on the klondike?
Also would the fact that there is a through hole component make it infeasible for the klondike?

I don't quite understand what you guys mean about surface area.
Are you talking about the interior surface area that is in contact with the water?

Also instead of the nozzle, maybe you could consider something like this: http://koolance.com/dual-video-connector-adjustable-1-slot-spacing
Doesn't have to be that one, I'm sure there's standard ones you can get from a hardware store
All you would need to do is weld the cap on the end, then drill a suitable hole and tap a thread inside it.
I would trust a screw in, more than hoseclamps, even though the pressure probably isn't that high so it may not matter.
Also you could place the holes on the top rather than either end which tom_o was suggesting.

Quote from: kano on May 21, 2013, 09:28:54 AM

Just an FYI ... I live in Sydney

So if you want to ensure continued support by the cgminer devs - ckolivas and myself - if you can provide one to each of us we can of course ensure we can provide proper and ongoing support for them.

The Avalon software is already under heavy development by ckolivas at the moment for the switch over to USB.

... and being in Sydney myself ... you can get one to me the same day they are ready and I can test and work on cgminer if required to make sure everyone will have it working as soon as possible if there are any problems then and in the future
ckolivas lives in Aus also

I would probably be agreeable to donating a board or two in exchange for some advice setting up cgminer on my host.
I'm a bit hesitant to make any concrete promises at this point though without even a finalised design.

kano

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Activity: 4592

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Linux since 1997 RedHat 4

Just an FYI ... I live in Sydney

So if you want to ensure continued support by the cgminer devs - ckolivas and myself - if you can provide one to each of us we can of course ensure we can provide proper and ongoing support for them.

The Avalon software is already under heavy development by ckolivas at the moment for the switch over to USB.

... and being in Sydney myself ... you can get one to me the same day they are ready and I can test and work on cgminer if required to make sure everyone will have it working as soon as possible if there are any problems then and in the future
ckolivas lives in Aus also

Defkin

member

Activity: 80

Merit: 10

Quote from: emanymton on May 20, 2013, 03:57:37 AM

Thanks for the input, everythings still very tentative till the design is finalised then I can start to shop around.
It'll be interesting to see how fast we can get these boards put into action.
I can't imagine the components being too much cheaper than mouser but would love if they were.
Hopefully the through hole components don't affect the overall assembly price too much.
If anybody knows any good assemblers or a place to get the heatsinks domestically I think we could all benefit.

I am going to be water cooling mine, I have not worked all the details out yet but it will be simple using off the shelf parts.
I have an avalon now and it puts out a lot of heat and noise.

Here is my initial idea. Its looking like I will need to make an adapter plate from flat bar and will mount broads both side of the tube.
https://bitcointalksearch.org/topic/m.2187398

emanymton

full member

Activity: 219

Merit: 106

Quote from: hardpick on May 20, 2013, 10:43:56 PM

Quote from: emanymton on May 20, 2013, 03:57:37 AM

Hi defkin,
I'm in Sydney and I'm getting 625 klondike boards done myself.
I have been waiting for a finalised design to go shopping around for an assembler but these guys look pretty cheap: http://www.tracktronics.com.au.
Dunno if it would work for us to buy together cos I'm looking to have the assembly done within 24-48 hours of receiving chips.
I think we could definitely work together on the heatsinks if you were interested.
Might be good to trade infos on different suppliers/assemblers though.
cheers

Hi I live in Sydney

are you going to sell some of your 625 boards ?

I'm going to try set up a farm in some old server racks with all of them if possible. If it turns out to be too much to handle then I'll sell some of them.
It is quite excessive but I've been kicking myself for not getting into mining sooner and now's my chance.
If the k64 design is available by the time I get my chips then I'll be using that one.

Quote from: FUKT on May 21, 2013, 01:24:29 AM

Quote from: FUKT on May 21, 2013, 01:15:07 AM

Hi, I'll be offering a group service for Australian residents wishing to have their Klondike 16/64 boards built. After looking through all the Klondike info I don't think I'll be trusting any of my boards with inconsistent chinese or similar parts. And at $130 dollars worth of chips in each board I think the extra costs of Australian manufacture are worth it.

I'll be offering a near turn key product ie. cables, atx power, testing and certification. All that is needed from you is correct number of chips and heatsinks.

I'll soon be posting a rough guide for costing (including postage) the 16 and 64 board manufacture with costing for ATX PSU and periphery cables. Also included will be a quick turnaround price and a normal price.

Payment can be made via BTc and direct bank transfer.

Can I get some idea of numbers please?

I'll also be offering to participate in identity verification face to face for worried individuals.

I'll be offering a group buy/service for a near turn key product.

I could possibly be interested depending on price, but I think at my volume it's gonna work out cheaper to do it myself.

Quote from: Defkin on May 21, 2013, 03:08:36 AM

Quote from: emanymton on May 20, 2013, 09:50:13 AM

Best price I can gather right now is as follows:
machine setup (per unique part): 25 parts (pls correct me if I'm wrong) = $100
PCB Load : $4 per board = $2500 (just for my boards, will be more including others)
Component placement fee, $0.05 per part x 307 parts = $15.35
Assembly Price per board = approx $20 per board + parts
would love to hear corrections or better offers...

Hi emanymton

I can think of a few items:
The solder paste stencil
Through hole components
Cost/supply of components, the assembler should be able to supply all of these and depending on what their turnover is they could have good buying power. Tubed components we could supply and will for the avalon chip also they load one for one. Reel components on the other hand can add up on short runs, they are a bit like staples in that when separated from the tape are useless and depending on the machine a number are wasted when loading up.

I think we really need the PCB file and BOM for a comparative quote, what one company charges for assembly, another might make up in supply, and other in short lead times.

Thanks for the input, everythings still very tentative till the design is finalised then I can start to shop around.
It'll be interesting to see how fast we can get these boards put into action.
I can't imagine the components being too much cheaper than mouser but would love if they were.
Hopefully the through hole components don't affect the overall assembly price too much.
If anybody knows any good assemblers or a place to get the heatsinks domestically I think we could all benefit.

southerngentuk

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Activity: 1316

Merit: 254

Sugars.zone | DatingFi - Earn for Posting

Quote from: FUKT on May 20, 2013, 04:37:56 AM

Hi all, I'm in for ten boards. Have been shopping around for quotes as well and waiting for results. Maybe get a group buy going for Australia residents?

I have a few chips on order that i will probably get populated to a couple of boards through my group. Once things are more mature and i actually see chips coming from avalon and working boards the i will be prepared to invest further.

I would be interested in a group buy of chips and boards as things progress. I could be tempted into a few boards to hold whilst waiting for the next batch of chips.

I think timing is everything here. Where all gonna receive chips at different times making a single run not practical. However an aussie group buy from avalon followed by a board run would be an excellent idea...

Defkin

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Activity: 80

Merit: 10

Quote from: emanymton on May 20, 2013, 09:50:13 AM

Best price I can gather right now is as follows:
machine setup (per unique part): 25 parts (pls correct me if I'm wrong) = $100
PCB Load : $4 per board = $2500 (just for my boards, will be more including others)
Component placement fee, $0.05 per part x 307 parts = $15.35
Assembly Price per board = approx $20 per board + parts
would love to hear corrections or better offers...

Hi emanymton

I can think of a few items:
The solder paste stencil
Through hole components
Cost/supply of components, the assembler should be able to supply all of these and depending on what their turnover is they could have good buying power. Tubed components we could supply and will for the avalon chip also they load one for one. Reel components on the other hand can add up on short runs, they are a bit like staples in that when separated from the tape are useless and depending on the machine a number are wasted when loading up.

I think we really need the PCB file and BOM for a comparative quote, what one company charges for assembly, another might make up in supply, and other in short lead times.

sikman

hero member

Activity: 572

Merit: 500

I'm interested as well, can anyone supply chips or willing to sell me a few to complete a few boards?

I'm in Sydney

FUKT

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Activity: 446

Merit: 250

Quote from: FUKT on May 21, 2013, 01:15:07 AM

Hi, I'll be offering a group service for Australian residents wishing to have their Klondike 16/64 boards built. After looking through all the Klondike info I don't think I'll be trusting any of my boards with inconsistent chinese or similar parts. And at $130 dollars worth of chips in each board I think the extra costs of Australian manufacture are worth it.

I'll be offering a near turn key product ie. cables, atx power, testing and certification. All that is needed from you is correct number of chips and heatsinks.

I'll soon be posting a rough guide for costing (including postage) the 16 and 64 board manufacture with costing for ATX PSU and periphery cables. Also included will be a quick turnaround price and a normal price.

Payment can be made via BTc and direct bank transfer.

Can I get some idea of numbers please?

I'll also be offering to participate in identity verification face to face for worried individuals.

I'll be offering a group buy/service for a near turn key product.

hardpick

sr. member

Activity: 265

Merit: 250

Football President

Quote from: emanymton on May 20, 2013, 03:57:37 AM

Hi defkin,
I'm in Sydney and I'm getting 625 klondike boards done myself.
I have been waiting for a finalised design to go shopping around for an assembler but these guys look pretty cheap: http://www.tracktronics.com.au.
Dunno if it would work for us to buy together cos I'm looking to have the assembly done within 24-48 hours of receiving chips.
I think we could definitely work together on the heatsinks if you were interested.
Might be good to trade infos on different suppliers/assemblers though.
cheers

Hi I live in Sydney

are you going to sell some of your 625 boards ?

erk

hero member

Activity: 826

Merit: 500

In Brisbane, was keeping an eye out for complete board sales as l didn't order any chips, don't need cases or anything like that. Currently looking at Terrahash but anything closer to home is better.

625 boards seems like an awful lot, like over 2.5 Terrahash! When I started mining in 2011 I use to get ove 1 BTC per day on about $500 worth of hardware. I would have to spend 10 times that now to get the same using GPU. People are throwing annual salaries into hardware and the block rate says the same, the difficulty just goes up. My goals are a bit more modest, I am still happy with a BTC a day which is about 20-25GH/s worth of Klondike boards.

GiLa

newbie

Activity: 44

Merit: 0

interested however dont have any chips

Topic: Sydney - Klondike assembly EOI - page 2. (Read 3956 times)