Topic: NanoFury Project - Open Source Design - page 22. (Read 75392 times)
Anyone know the best place to buy the bitfury chips in bulk?
Well, I finished a modification of nanofury project to be printed on a single layer PCB, also brings built-in USB connector and holes to install standard chipset heatsinks.
https://bitcointalksearch.org/topic/m.3678665
https://bitcointalksearch.org/topic/m.3678665
vs3, can you tell us about the heat of the chips, without any dissipation layer, how much temperature rises?
I happened to make a big hole in the GND pad and once the bitfury soldier is padded on the backside with tin or thermal compound to insert a rear heatsink.
I happened to make a big hole in the GND pad and once the bitfury soldier is padded on the backside with tin or thermal compound to insert a rear heatsink.
I had the sample boards that I made over the weekend run for a while without any heatsink on the back - just using the entire copper backside as a heatsink. They worked just fine at 50 bits speed (and I also let them run for a while at 51 and they worked fine too but I didn't let them run for long enough to be certain).
Also - keep in mind that the chips are not the only heat source. Chips produce about 80-85% of all the heat, but also the coil and regulator produce another 15-20% too. So heatsink on the back side helps them as well.
What we know for sure is that the bitfury chips can take a lot of beating - and I mean A LOT :
Chips have been tested to run at extreme temperatures. One user used a soldering iron to heat the chip to the point it desoldered. Hashing stopped only when chip started floating on solder and shortcircuited.
vs3, can you tell us about the heat of the chips, without any dissipation layer, how much temperature rises?
I happened to make a big hole in the GND pad and once the bitfury soldier is padded on the backside with tin or thermal compound to insert a rear heatsink.
I happened to make a big hole in the GND pad and once the bitfury soldier is padded on the backside with tin or thermal compound to insert a rear heatsink.
Have a guy a idea to run this devices under the raspberry?
I bring them not to work:-(
I bring them not to work:-(
I will be looking at these designs later today but am interested in adding in more bitfury chips. I'm not an electrical engineer but am pretty good with pcb design so was wondering what changes would need to be made to the schematics themselves to make this happen.
Also, I have a local pcb builder that has a 5 day turnaround and a local pcb assembly company that takes on small-medium production runs. I know I do not have much time on this forum but I've been a member for a while.
I'm located in the states.
Also, I have a local pcb builder that has a 5 day turnaround and a local pcb assembly company that takes on small-medium production runs. I know I do not have much time on this forum but I've been a member for a while.
I'm located in the states.
Like.
How do you pick-and-place them?
Steady hands!
btw the trickiest part was placing the bitfury chip ... on one of the boards it is off by half a pin length. Luckily it was shifted along the power pins, so all data ones were good.
Damn, I always wanted the excuse to make one of these:
http://www.youtube.com/watch?v=bkYNBFXlJYQ
http://vpapanik.blogspot.gr/2012/11/low-budget-manual-pick-place.html
I guess I'll have to get few full kits with ASICs just for the fun of assembling them.
Yeah, I've looked at something like that .. So far I haven't found anything that beats steady hands and good tweezers though.
I mean - down to 0603 everything is big enough for handling it that way. 0402 is probably as tiny as I'd ever do by hand (and given an option - read that as "never").
Sure, although I think you may not like my pricing
How do you pick-and-place them?
Steady hands!
btw the trickiest part was placing the bitfury chip ... on one of the boards it is off by half a pin length. Luckily it was shifted along the power pins, so all data ones were good.
Damn, I always wanted the excuse to make one of these:
http://www.youtube.com/watch?v=bkYNBFXlJYQ
http://vpapanik.blogspot.gr/2012/11/low-budget-manual-pick-place.html
I guess I'll have to get few full kits with ASICs just for the fun of assembling them.
Yeah, I've looked at something like that .. So far I haven't found anything that beats steady hands and good tweezers though.
I mean - down to 0603 everything is big enough for handling it that way. 0402 is probably as tiny as I'd ever do by hand (and given an option - read that as "never").
How do you pick-and-place them?
Steady hands!
btw the trickiest part was placing the bitfury chip ... on one of the boards it is off by half a pin length. Luckily it was shifted along the power pins, so all data ones were good.
Damn, I always wanted the excuse to make one of these:
http://www.youtube.com/watch?v=bkYNBFXlJYQ
http://vpapanik.blogspot.gr/2012/11/low-budget-manual-pick-place.html
I guess I'll have to get few full kits with ASICs just for the fun of assembling them.
Yeah, I've looked at something like that .. So far I haven't found anything that beats steady hands and good tweezers though.
I mean - down to 0603 everything is big enough for handling it that way. 0402 is probably as tiny as I'd ever do by hand (and given an option - read that as "never").
How do you pick-and-place them?
Steady hands!
btw the trickiest part was placing the bitfury chip ... on one of the boards it is off by half a pin length. Luckily it was shifted along the power pins, so all data ones were good.
Damn, I always wanted the excuse to make one of these:
http://www.youtube.com/watch?v=bkYNBFXlJYQ
http://vpapanik.blogspot.gr/2012/11/low-budget-manual-pick-place.html
I guess I'll have to get few full kits with ASICs just for the fun of assembling them.
And we got some really nicely baked NanoFury miners
Hmmm, cookies!
Edit:
How do you pick-and-place them?
Steady hands!
btw the trickiest part was placing the bitfury chip ... on one of the boards it is off by half a pin length. Luckily it was shifted along the power pins, so all data ones were good.
And we got some really nicely baked NanoFury miners
Hmmm, cookies!
Edit:
How do you pick-and-place them?
Probably not everyone's idea of a Saturday evening drink ... but some steady hands and a glass of single malt (for the steady hands part! ) and a few hours of boredom killed:
Let's start with some SMT paste:
Paste looking good:
a few hours later ...
Finally something ready to be baked :
NanoFury Cake anyone?
count down to liftoff ...
Houston, we have ignition! Middle 2 boards are a few degrees ahead of the pack!
Melt solder! Melt!
Finally cooled down and ready for a close inspection:
And we got some really nicely baked NanoFury miners
Full album is here: http://imgur.com/a/5hXU4
) and a few hours of boredom killed:Let's start with some SMT paste:
Paste looking good:
a few hours later ...
Finally something ready to be baked :
NanoFury Cake anyone?
count down to liftoff ...
Houston, we have ignition!
Middle 2 boards are a few degrees ahead of the pack!Melt solder! Melt!
Finally cooled down and ready for a close inspection:
And we got some really nicely baked NanoFury miners
Full album is here: http://imgur.com/a/5hXU4
Which version of KiCAD are you using? Mine is probably old by now - 2013-07-07 BZR 4022 stable on Win32.
Sorry, I was using a version of the Ubuntu repositories 2011
when I open CvPCB to open the netlist I get this error message.
If I open the netlist directly in Pcbnew the components do not appear.
Code:
Unknown File Format <(export (version D)>
Code:
File does not appear to be a valid Kicad net list file.
Code:
Some files could not be found!
NanoFury.mod
NanoFury.mod
If I open the netlist directly in Pcbnew the components do not appear.
I'm not sure what's the story about "NanoFury.mod" file - it is certainly there:
https://github.com/nanofury/NanoFury/blob/master/NF1/kicad/lib/NanoFury.mod
I noticed that KiCAD tends to embed full paths - which is most likely why you're getting those errors (as yours won't be where mine were). When you open either the schema or pcb go to libraries and remove all references (KiCAD tends to insert its own libraries there too) and add just the files from the lib/ folder.
Which version of KiCAD are you using? Mine is probably old by now - 2013-07-07 BZR 4022 stable on Win32.
is there a easy way to look them up and buy them online ?
when I open CvPCB to open the netlist I get this error message.
If I open the netlist directly in Pcbnew the components do not appear.
Code:
Unknown File Format <(export (version D)>
Code:
File does not appear to be a valid Kicad net list file.
Code:
Some files could not be found!
NanoFury.mod
NanoFury.mod
If I open the netlist directly in Pcbnew the components do not appear.
I'm not sure what's the story about "NanoFury.mod" file - it is certainly there:
https://github.com/nanofury/NanoFury/blob/master/NF1/kicad/lib/NanoFury.mod
I noticed that KiCAD tends to embed full paths - which is most likely why you're getting those errors (as yours won't be where mine were). When you open either the schema or pcb go to libraries and remove all references (KiCAD tends to insert its own libraries there too) and add just the files from the lib/ folder.
Which version of KiCAD are you using? Mine is probably old by now - 2013-07-07 BZR 4022 stable on Win32.
when I open CvPCB to open the netlist I get this error message.
If I open the netlist directly in Pcbnew the components do not appear.
Code:
Unknown File Format <(export (version D)>
Code:
File does not appear to be a valid Kicad net list file.
Code:
Some files could not be found!
NanoFury.mod
NanoFury.mod
If I open the netlist directly in Pcbnew the components do not appear.
Thank u for your open source project
Will be starting making these ones soon (if i got all things i need) and hope to get a working project
:-) Keep up the good work and will support when its all is done
I tried this method but when i want to open the project NanoFury/NF1/kicad/lib folder its seems empty
I can open NF1-MCP2210 and i get a layout but i do not know for sure if thats the complete one to sent to the fab or make ourself
hope you can help me out with this
Will be starting making these ones soon (if i got all things i need) and hope to get a working project
:-) Keep up the good work and will support when its all is done
Quote
When you open either the schematic or PCB documents KiCAD may want to start with its own libraries. Remove them from the list - the NanoFury project includes a lib folder with all libraries that you may need. Just add all files from the NanoFury/NF1/kicad/lib folder. (this also would prevent the issue when KiCAD wants to use its own library for a given component instead of the one from the project which may result in bad schematic or PCB)
I tried this method but when i want to open the project NanoFury/NF1/kicad/lib folder its seems empty
I can open NF1-MCP2210 and i get a layout but i do not know for sure if thats the complete one to sent to the fab or make ourself
hope you can help me out with this
The PCB and SCH files will be in NanoFury/NF1/kicad/NF1-MCP-V06/
When you open either of them then you may get some messages about libraries - then you go to Preferences->Libraries and use the ones in NanoFury/NF1/kicad/lib
Aside from that the PCB file will contain everything needed for exporting of the gerber and other manufacturing files.
I will have a long wait at this facility. I am looking for quotes for others that can deliver sooner. If I was able to place a larger order they would start sooner but this is not the case. I made pre orders with Hasfast etc and have a limited amount of funds .............. it is what it is.
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