Jump to content
SAU Community

Butterfly Labs Bfl Little Single Bitcoin Miner 30Gh/s - As New


Recommended Posts

As the title says, I got one of these yesterday and I don't actually need it as the one machine I was waiting on actually arrived 3 months early, so now I have two miners too many.

It works like a trojan

$1100 or best offer

I also have a brand spanking new, untouched 50Gh/s unit

$2100 or best offer

They're breeding like Gremlins, you know you want one :D

Total noob question but how long does it take to mine one bitcoin?

Is there any costs involved to start mining? Is it literally buy that and away you go - seems way too easy...

Not a noob question at all; a Bitcoin at 30Gh/s takes 75 days to mine maybe quicker depending on the mining pool you join. (the mining pool increases your earning potential due to many hands making light work)

You literally need to download software such as BFGminer, join a mining pool (BTCGuild) and have a bitcoin wallet to send the money to (coinjar.com) once you plug the miner in, it's running in seconds.

The best advice I have with mining is....don't look at it based on the current value of a bitcoin, it's still speculative and due to limited supply, people are convinced it will top at $10,000 a coin once more retailers get on the band wagon of accepting them for payment. Only today a big US online store started taking them.

The best thing with mining gear is to run it for a couple of months, keep the coins, sell the rig and get a faster rig. As with computers etc etc the speed of the rigs gets quicker every 3-6 months. Demand has been so high for the newest miners that pre-orders can't even deliver until March AT BEST. I was lucky with my one. But now have two miners that aren't really needed. But hey, realistically while you wait to sell, you just plug them in and earn coins. I'm tempted to do it with the 50Gh/s unit as it's actually specced closer to 60Gh/s :D So that's a Bitcoin in 25 days running alongside the 30Gh/s one

Because of this for sale thread I spent like 2 hours last night reading about bitcoin mining and what the hell it is.

This article here basically explained everything to me:

http://www.tomshardware.com/reviews/bitcoin-mining-make-money,3514.html

Good read for any noob like me trying to learn about it lol.

Also Dan, there's a bit coin thread in the wasteland. Think it's in the news and current affairs thread. Might want to post a link there in case anyone is interested... GLWS :)

Dan do you mind if I ask how long you have been mining and what sort of returns you have seen since you started?

Mining very shortly, almost 12 days haha. Straight up I went into a group buy with the expectation of having the 'dream machine' in March/April so bought 2 small units totalling 10Gh/s to get going, then ordered the 30Gh/s and 50Gh/s to tide me over until then. So things moved quicker than expected and the things were everywhere!!!

So basically right now I've got 0.05BTC in a wallet...0.03BTC of that was using the 30Gh/s for a couple of days. I sold the 10Gh/s units after 7 days of use. It's a bit like an arms race, you'll get more addicted to powerful units...smashing down $5K on 200GH/s machines, then $8K on 400's but they also start making serious BTC's just don't hold your miners for longer than a month. New people are wanting to get involved and will start slower, while you move onto your faster units.

25 days to make 1 bitcoin, nice. Seen the value was $1100 currently per bitcoin to. Also read that the power usage on the units is 1W/gh/s? Does that seem right to you?

25 days to make 1 bitcoin, nice. Seen the value was $1100 currently per bitcoin to. Also read that the power usage on the units is 1W/gh/s? Does that seem right to you?

Do it Matt. Fund your new motor through Bitcoin mining. :P

FFS may not have officially sold the 30gh/s....Paypal have gone and held the funds for no good reason so I can't send it to the buyer. I hate Paypal and what they have become.

FFS may not have officially sold the 30gh/s....Paypal have gone and held the funds for no good reason so I can't send it to the buyer. I hate Paypal and what they have become.

should have requested payment in bitcoins



  • Latest Posts

    • Hi guys, has anyone either purchased or built themselves a rotisserie for their car before? I can only just justify the need for one hence why I should just make one but at the same time, if I make one I can kiss another 4 weeks of potentially productive car working time goodbye because I'm building a bloody rotisserie....  I mainly want it for the application of the body deadener.  Cleaning the old stuff off, priming and then colour over the deadener doesn't worry me, it's just the application using the Schutz Gun that I feel would achieve a significantly better finish painting it side on and keeping the Schutz Gun upright.  I don't think they would work well on the side let alone almost upside down for some areas.  If the product I use (Terosun, etc) could work through a HVLP ok then it might be ok to apply without the rotisserie.   I can get one of these style ones for about $1200 which is pretty good value-     I reckon if I made one it would cost around $500 but it's more the time that it would take is more of a killer than the cost.  They look to hold their value pretty well second hand so I could always sell it after using it and realistically only lose $200-$300 at worst.  Or keep it and buy another project when this one finally sees the light of day... Anyone selling one...? Cheers!  
    • While it is a very nice idea to put card style AFMs into the charge pipe (post intercooler, obviously), the position of the AFM and the recirc valve relative to each other starts to become something that you really have to consider. The situation: The stock AFM is located upstream the turbo, and the recirc valve return is located between the AFM and the turbo inlet, aimed at the turbo inlet, so that it flows away from and not through the AFM. Thus, once metered air is not metered again, neither flowing forwards, or backwards, when vented out of the charge pipe. When you put the AFM between the turbo outlet and the TB, there is a volume of pressurised charge pipe upstream of the AFM and there is a volume of pressurised pipe downstream of the AFM. When the recirc valve opens and vents the charge pipe, air is going to flow from both ends of the charge pipe towards the recirc valve. If the recirc valve is in the stock location, then the section between it and the TB doesn't really matter here - you're not going to try to put the AFM in that piece of pipe. But the AFM will likely be somewhere between the intercooler and the recirc valve, So the entire charge pipe volume from that position (upstream of the AFM, back through the intercooler, to the turbo outlet) is going to flow through the AFM, get registered as combustion air, cause the ECU to fuel for it, but get dumped out of the recirc valve and you will end up with a typical BOV related rich spike. So ideally you want to put the AFM as close to the TB as possible (so, just upstream of the crossover pipe, assuming that the stock crossover is still in use, or, just before the TB if an FFP is being used) and locate the recirc valve at the turbo outlet. Recirc valve at the turbo outlet is the new normal for things like EFRs anyway. In the even of a recirc valve opening dumping all the air in the charge pipe, pretty much all of it is going to go backwards, from the TB to the recirc valve near the turbo outlet. But only a small portion of it (that between the TB and the AFM) will pass through the AFM, and it will pass through going backwards. The card style AFMs are somewhat more immune to reading flow that passes through them in reverse than older AFMs are, so you should absolutely minimise the rich pulse behaviour associated with the unavoidable outcome of having both a recirc valve and an AFM in the charge pipe.
    • Yep, in my case as soon as I started hearing weird noises I backed off the tension until it sounded normal again. Delicate balance between enough tension to avoid that cold start slip and too much damaging things.
    • I'm almost at a point where I feel like changing the alternator. Need to check the stuff you mentioned first though.
×
×
  • Create New...