By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for Russ B

Here is a list of all the postings Russ B has made in our forums. Click on a thread name to jump to the thread.

Thread: Bridgeport Series 1 mill, ram elevating worm removal
01/03/2014 11:36:41

Steve, take a look here, just to confirm we're on the same page:

Items 10,11,12 and 13? - I've not had mine off but everything else is off while the heads been refurbished so I could have a quick look if you can't work yours out.

If you scroll down the parts list to item 10 and click the photo, you'll see its a plain shaft with a plain key, suggesting the worm moves on the shaft a bit to me, and also I note, there are thrust washers above and below the worm possibly further supporting this theory?

I'd hazard a guess although it doesn't sound like good practice to me, that item 10 will just pull out (if not secured somehow by a screw in the end of the shaft accessed from under the machine), and the worm will drop out.

Thread: Another open thought - beginners perceptions .
27/02/2014 11:42:18
Posted by Gordon W on 27/02/2014 11:06:57:

Who decides who the experts are? Just go on no. of posts, or prizes won, or just people you already know, or what? This is a serious question by the way.

The "right choice" for a person depends on their own ability and equipment and the right answer matches that, sometimes, people quote things which aren't wrong, but they don't apply to the particular scenario or rule set.

The inability to edit post's is poor too, on other forums, the OP can take 2 or 3 of the first posts "for future" and compile/update his or her findings in there following completion of solving of the problem, so the first follow up thread, contains what they found to have done the trick for that scenario.

Thread: Efficient Workshop Heating
26/02/2014 14:45:53

Lofty, idle has no relevance, and a GTX690 has an unsealed cooler, at best about 25% of the heat will exhaust directly to the atmosphere, and it's a 300w card, so 2 of them at full synthetic loads will see 500-600w and bar the slight noise and vibration, that is heat one way or another.

The last dual chip card setup I had similar to yours was 3x 4870x2 and you couldn't hold your hand at the exhaust for more than a few seconds, it would certainly burn.

The program is CGMiner - you'd need to run CudaMiner on your 690's and you'd get around 600-800KH/s for your 600w consumption, - and if you want to give it a general stress test to warm things up OCCT's (PSU test) is great!

Michael, I'd need to know the molecular density and the adiabatic constant for the gas (plus the temperature) to calculate that right? - they should really rename it from "speed of sound" to "speed of molecules in a gas" - I think it makes more sense =)

Edited By Russ B on 26/02/2014 14:48:14

Edited By Russ B on 26/02/2014 14:49:11

26/02/2014 12:16:28
Posted by MICHAEL WILLIAMS on 26/02/2014 12:04:40:
Why don't the laws of physics apply to heat pipes ?

Michael Williams

my bad, I meant speed of SOUND not light LOL cheeky

- applying the law of physics, would time not slow down to a full stop for the object as it reaches the speed of light ?!?!?

Edited By Russ B on 26/02/2014 12:16:48

26/02/2014 09:55:58
Posted by Ian S C on 26/02/2014 09:21:35:

I was at one stage looking at hot air heating, it requires a large wooden tray, say 6' x 4' x 6", with a glass or Perspex cover, then enough aluminium soft drink cans to join end to end with their bottoms knocked out of them, get them joined up, put some aluminium foil in the tray, spray the cans black, put them in the tray, at the intake a small fan from a computer can be fitted, put the cover on and aim the thing into the sun, convection should get the air moving, if not the fan will. Don't know, still thinking about it. Ian S C

Does Perspex work for that ?. Glass (I seem to recall) changes the wavelength of light as it passes through (lengthens it) making it harder for the heat to escape. A heat pipe is cheap and easy to make and conducts heat great distances very quickly. Just cap one end of a copper tube put a wick it from end to end, put a small amount of water in it, pump the air out to create a vacuum and cap the other end, in a theoretically perfect heat pipe (impossible) the heat is conducted at the speed of light. The cold end can be attached to a passive radiator or used to heat water (as in commercial solar heating systems) - I believe just ambient light is enough to get these warm.

** sorry, uninvited advice!

Edited By Russ B on 26/02/2014 10:02:41

25/02/2014 22:58:47

no no... I'm getting confused now....... wink

25/02/2014 22:57:53
Posted by John Stevenson on 25/02/2014 22:55:16:

I used to have a van like that. frown

Best thing to do with that van, is buy and old computer with a GPGPU, put it under the bonnet, and use it to fly to the moon and back.

25/02/2014 22:53:10

Fair comment Andy thanks, I do disagree a little in that I work for a great company so they are out there.

Again, I didn't want to brag, it's my intention to share and I don't claim to own or have created the cryptocurrency or any of its associated software/hardware and really have nothing to brag about other than spotting the fact the I can buy a cheap piece of redundant computer hardware and etc. etc. (it's probably already been done!)

I was being secretive for a bit of fun that's all, and this whole mad idea, is just a bit of fun - I agree, model engineers probably don't have a big enough computer, and neither do I, I will have to invest in these GPGPU's as they are the key component, its like I've got a chassis and all the running gear but no engine right now.

Edited By Russ B on 25/02/2014 22:54:14

25/02/2014 22:16:42
Posted by Steven Vine on 25/02/2014 21:47:42:


Intriguing. I have never heard of bitcoins until today.

What can you actually buy with the coins, and what do you plan on buying with them? Can you use them at Tesco, or can you pay the electric bill with them?


Steve, it cant be used in Tesco, but it can be exchanged for cold hard cash online.

Crypto-Currency is a very interesting concept, you'll get a much better idea on wiki - its basically decentralised money - and big banks, won't like not being in control - its going to be one to watch for sure.

Edited By Russ B on 25/02/2014 22:17:49

25/02/2014 21:53:58
Posted by Andy Ash on 25/02/2014 21:09:57:

Real electronic technology isn't specifically about personal computers or even ASICs.

Check out Ben Krasnow on "the tube".

He's built an electron microscope, on his Bridgeport, in his shed.

I think he got a really good job (and a respectable, open, future - with possibilities) with Valve through that project.

Valve..... now that's a commercial idea we could use in the U.K.

I think it's sad that electronic technology in the UK is assumed to be PC's, iPhones and eChuff.

I don't think it amusing, and it's definitely not worth bragging about.

Sorry if I came across as bragging if that's what your pointing at, I just wanted to heat my workshop free of charge...... and thought, this is probably something someone might want to replicate for their model engineering .......

In terms of technology the first electron microscope was built in 1931.... as skilled as he is (and I certainly couldn't achieve that), it's not exactly cutting edge - whereas, I don't imaging the world networking together their mechanical calculators to join forces and battle cancer in 1931,

Not sure what you mean by the PC's, iPhones and eChuff but since Valve Corperation who employ Ben Krasnow are at the bleeding edge of "PC's, iPhones and eChuff" and it's all American I don't know anyone who confuses it as UK tech.

Edited By Russ B on 25/02/2014 21:54:53

25/02/2014 19:51:12
Posted by John Stevenson on 25/02/2014 19:43:44:


have you calculated the UPS and backup generator in the sums to protect your clients data ?

That might stuff your break even point up a tad ? wink

packets are distributed by the central system ( and its not uncommon for them to be wrong anyway when they return, they simply get sent out again for re-computing, the system runs from USB, it can be turned off and on at any time, it wont start where it left off, it will just request another packet and off it goes again - it can be run on a thermostat just turning on and off mid activity, no trouble.

(keep trying cheeky)

25/02/2014 19:46:34
Posted by ChrisH on 25/02/2014 19:25:34:

Humm, I think I will stick with JS, my wood/charcoal burner is not a rust producer and works well. And I can understand it, whereas, computers, bitecoins, litecoins, a very very grey unfathomed area


Fully understand, and I'm envious to be honest, a stove is really what I want, although the wood wouldn't be free I just love stoves, I find splitting logs and building the fire therapeutic in a primevil sort of way!

I live in a residential area, so a ground floor height chimney won't go down to well - nor will a 5 metre stack =)

25/02/2014 19:14:29

And trust them with this data ?

I see your point but It's encrypted, plus if a hacker wanted your data, he'd have it in a fraction of a second, just like a real life break in, security doesn't stop attackers, it just slows them down, and in the computer world, things happen in less than nanoseconds to start with. If your on your wifi at home, a hacker could be sat watching everything you do, you'd never know he was there, he's just watching all that data go back and forth.

J, it looks good but think of the moisture! I think you'd need more than a few to match the BTU's of this computers clean dry heat cheeky

25/02/2014 18:54:59
Posted by JasonB on 25/02/2014 18:38:30:

Russ Just watched the 6 O'clock news and it says the value of Bitcoins has dropped a lot in the last 24hrs, does that mean you are now in negative equatywink 2


No, but well spotted, I've specifically avoided BitCoins

LiteCoin (for now) can only be most efficiently mined on consumer grade hardware - so no stock crash, see for the brief summary,

Since I will sell my stock monthly, the maximum I could crash would be £8-10 then I'd just pick another cryptocurrency and start earning that one.

I'll be part of a pool, since the winnings are more frequent, and there are many other benefits, this is the one I'll go with as they tick all the boxes for me

25/02/2014 18:33:42
Posted by NJH on 25/02/2014 18:29:13:

So Russ

Am I right in thinking that, in essence, your proposal is to purchase computer equipment which generates considerable heat in its operation and to utilise this heat to warm the workshop. The costs of this project - both the start-up and running costs ( plus, presumably, a contribution to a sinking fund for future equipment replacement ) would be met by "renting" the computing power of your machine to those wishing to tap into "spare processing power" via the internet?


pretty much hit that nail on the head, except as of yet, it's just generating online currency, however this online currency can be sold for real money, which I find rather odd, but it is what it is.

One day, as mentioned above, companies will look to these community clouds to tackle packets of data for them that aren't latency dependant (such a medical or market research etc.)

25/02/2014 18:30:25

put your handbag down JD,

The specs was for the benefit of others who might wish to follow the build, the GPGPU chosen is important since it represents an equilibrium between running cost and earnings while providing a good amount of heat at a low capital value.

Server specs have nothing to do with this, so you've missed the boat completely - this is actually the beginning of cloud computing in reverse, whereby rather than the end user paying "X" to use a computer based on a server, a company will one day pay a community cloud to compute data rather than rent or build an expensive server.

on the plus side, your summary is accurate if not complete, so you didn't miss everything.... let me finish that for you

- "hey, I could use the waste heat from a PC working as a shared server on the inet to help heat my workshop - while generating crypto currency I can sell for a profit covering the electric bill!!"

25/02/2014 16:23:43

Ok, the components

Motherboard = Asus M5A78l-m/USB3 - because I have one in my loft, it has 2 PCIe lane, a x16, and an x1 which I will need a x1 to x16 ribbon + power supply to use - thus this system can handle 2 cards

CPU = AMD FX4100 - because I have one in my loft, I may disable 2 or 3 of its cores to save power (this won't be used due its very poor £ per watt ratio)

memory, 8gb of DDR3l (l = low power) - may drop to 1 or 2 gb, again to save power

PSU = 800w 90+ psu (this will need to be upgraded if I got for more than 3 cards)

GPGPU's doing all the work, and creating all the heat, will be AMD Radeon 6950's (just one or 2 to start with) as they're profit/energy consumption is just under 1:1 so they go cheap as the cryptocurrency community isn't interested in them anymore.

running CGminer from USB to further reduce power consumption (no hdd to run, no dvd, no wifi etc.)

the system with two cards will draw about 550-600w at the wall due to inefficiencies and the cards will put out around 400-440w of heat (1320 BTU/h) so over say a 100 hour period, they will cost £8 odd in electric and at the current exchange rate, those cards would create just under £9 in 100 hours.

any inefficiencies actually leave the system as heat anyway so worst case scenario, a litecoin has nill value, and I've just run a 500-600w heater for 100 hours, that I wanted to run anyway breaking even, but wasting time. the value of the hardware will not really go down at an alarming rate so it will be worth roughly what I paid for it should I decide to sell it and buy an oil radiator! - but the truth is Cryptocurrency does have genuine value so that statement in any worst case scenario is wrong, it will offset some of my bills,

A systems performance is measured in Kh/s (kilohash) this is a 900Kh/s setup (450 per card) with each card eating 220w of electric. A new card was released in the last week that generated 245Kh/s and uses just 60w (£105 a piece, and they will be sold out before they hit the shelves just because of that)

25/02/2014 14:17:37


its is indeed a Cryptocurrency generator - but not Bitcoin, since that's all ASIC based now and regular end user hardware can no longer compete (not to mention they've just had hundreds of thousands of pounds hacked/stolen......)

I'm thinking Litecoin, since it specifically has "proof of work" so theses specialised ASIC machines can't take over - they add no value to the market, the only people who really made money where those selling the ASIC cards for $1000+ and now they've destroyed that makets value, they'll start work on the next, and when they finally figure out how to mine Litecoin via ASIC, I'll switch to something else since my hardware (unlike ASIC) won't be fixed to mining one code

- this is essentially cloud computing in reverse, end users, rent out their processing power for £££'s per successfully computed "block" - it's just not been commercialised yet, it wont be long before Google or someone takes this platform and makes real money out of it.

Back last year someone assesed the computing power of the BitCoin community, and if you took the top 500 super computers in the world, and merged their processing power together, the BitCoin community had 256 times more processing power....... imagine if we put that towards cancer research, in 2 days it could handle a workload that would take 2 years or so on the so called "super computers"

** edit, when I say real value, I mean directly paying out in $ or £, right now, they pay in "Litecoins" or "BitCoins" - and these can be sold and traded for real items, or just used as currency on some sites to buy things rather than PayPal or google wallet for example. 

Edited By Russ B on 25/02/2014 14:21:49

25/02/2014 14:02:29

It's obviously not free or almost free energy Dull - its actually probably less efficient than a standard £30 oil filled radiator,

we have a winner

25/02/2014 12:38:58

oh, and the system I build first off, will only have 2/3 modules quoted, so it will still hit around 99% cost offset, but for a measly 400-500w or so heat output - it should be enough to make a difference in there.

I'm building it like this as I already have some parts that "will do", I'll upgrade it to 3 or 4 modules after, but only if it works. (giving me a 750w-1000w heater)

Another clue? It's about 45cm heigh, and 28cm wide, with a depth of just under 50cm.....

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at

Latest Forum Posts
Support Our Partners
Eccentric July 5 2018
Rapid RC
Eccentric Engineering
Subscription Offer

Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest