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: Arc Euro Trade April Offers/Discount Codes|
Do we have any new codes ?
It was my birthday last week but I've been so busy I forget to get myself something!!
I'm eyeballing a pair of Stevenson's ER40 collet blocks and a type B nut!
|Thread: Dickson tool post|
If the vee's are worn, then just like a lathe bed, the wear will be concentrated more in one spot, and I bet at the top and bottom, they aren't worn at all.
|Thread: Free lathe riser/stiffener heavy steel channel|
Tony, sorry i think it's gone, someone local is collecting, I'll let you know if it falls through
There are getting thrown out, but I see uses for them in the home workshop as lathe bed stiffeners/raisers to add a bit of extra mass - these would be sturdy enough to twist a bench top size lathe bed true if need be (up to Myford 7 / Boxford AUD sort of size)
Obviously they could be used for all sorts of seriously heavy duty work, a bearing press is another good example. There is also a stack of 10+ slightly smaller section stub length around a few hundred mm long.
Getting thrown in a skip this week or next, I could hang on to them for a little bit if need be.
2 painted grey U section RSJ 200x75, 12mm webs, 6mm thick across the 200mm width. Both 1050mm long.
1 unpainted 200x95, 15mm webs, 8mm thich across the 200mm width 1620mm long, flame cut at one end.
any takers for one/all, must be collected from DN2 4SE area in Doncaster - all very heavy obviously.
Edited By Russ B on 20/09/2017 12:31:31
|Thread: 3D Printed Wind Turbine|
This is worth a look.
Small/cheap IC engines often run a magneto, I wonder if this could be of any use?
How do you go about regulating speed on a vertical axis turn in case it's blowing a gale outside?
|Thread: Raw black rubber|
Sorry Hacksaw I didn't see your post regarding having already tried PU!
This unvulcanized rubber sounds like the business. I might investigate further although I believe it's not capable of retaining pressure which would be of some importance to me. How much was this stuff and does it have a shelf life?
I'm a bit late to the party.
I've had great success using 2 pack urethane - it's as tough as old boots and can be coloured. Available in a range of hardness, I get mine from Bentley Advanced Materials, it isn't cheap but it is good quality - their colour pigments are UV resistant which is important for your application!
Silicone has a much lower resistance to hydrocarbons/oils/fuel - I wouldn't advise it on a car, but on the back lights, maybe ok?
I cast a seal face on a 3D printed conical sealing head, using a 3D printed mold, for a 1 ton per hour pulverised coal injection machine running at upto 7 bar, the seal head is on the main bulk material inlet, I built the machine a few years ago, and it's still running today.
|Thread: Myford Super 7 Lathe - early style Clutch|
As Niko said, worst case scenario, do away with the clutch, the ML7 version doesn't have one, and you don't really need it. It does prevent you having to stop and start your motor all the time, to quickly check dimensions which is handy, plus as I understand it, stopping and starting can be very harmful to most single phase motors depending on the type!
|Thread: (Tooling design help please) Die Cutting / Punching non ferrous sheet|
Look like Gauge Plate is the way to go folks!
Do you think I'd get away with 2mm thick plate, bearing locked into/onto mild steel or would I need thicker?
I could easily afford a 2mm thick piece 100mm wide and 500mm long (£22.79 delivered) and this could be useful for all sorts of things in the future. The next step up is 3mm and its 50% more (thinner is the same price on the width I was looking at)
Edited By Russ B on 28/08/2017 17:09:00
Jason, thanks, I'm lacking knowledge on these things, but wow, double the carbon content of EN8, practically the same as silver steel, but more chromium, plus a bit of vanadium, and a sprinkling of tungsten to boot! Would I be correct in thinking this will harden more than silversteel, I'm not totally sure, the carbon content is practically equal.
I'll look in to prices, I wouldn't mind ordering more than I need as it seems like it would be very useful.
I'm also beginning to come back around to your orignal suggestion of rough cutting and machining the OD, but we'll see, it's certainly looking like the cheap and easy (less a bit of elbow grease rough cutting) option to attain good results.
Jeff that Dayton page is superb thanks, a very interesting and informative read, I've downloaded their PDF version and will certainly keep that for reference indefinitely.
I'm going to have to drop the silver steel for the main outer cut to make the disks as I need them around 30mm diameter, so the die would have be circa 40mm minimum and It's very pricey!
I think I'll just use EN8 and harden and temper, I might case harden too as I have stash of kasenit, I'm not overly experienced with heat treatment, I tend to just follow the basics and it seems to have an effect!
JasonB, thanks - yes I'm getting a bit carried away with the manufacture of tooling, but I imagine if I like the results, I'll want to make a few more for other bits and pieces.
Roy, it would need to be plated or simply push fitted with a thermal interface material (paste) - I hadn't thought about that! That eliminates aluminium from my line of enquiries, as its quicker/easier to just use copper, and it's probably easier to source, and certainly performs far better.
John, that tool looks really handy!! I feel a hex bar stock project coming!! How bigger hole do you think it could cut in 0.5mm copper sheet? - I've sent a quick message to the Gas Turbine Builders Association to see if those plans are still available.
I'd like to stamp/die cut some copper or aluminium disks using a home made 2 piece punch & die (silver steel?) - does anyone know what the clearance should be to produce a nice burr free edge or have any advice, I'm just making it up as I go along at the minute!
- back ground info (as there may be a better way!)
I'd like to make a simple heat exchanger consisting of aluminium or copper disks slid over a copper pipe and soldered to it.
|Thread: Would you buy a second hand laptop computer ?|
On this tanget, This data talk only refers to old magnet storage aka Hard Drives, PC's that use Solid State Drives aren't affected. For magnetic drives, I would recommend Lowvel.
And talking on point with regards to the OP, the hard drive and a laptop's battery are the only two components that would bother me significantly. Lithium batteries can only be cycled so many times, and degrade if left fully charged all the time, or discharged too much. Hard drives have bearings, bearings have a finite life, eventually things start to go wrong.
On a slight tangent again, Windows 10 licences are digital, and stored on Micro$oft servers, so if your hard drive does fail, there's no panic with regards to finding your key code and registering the installation - you'd just install the same version of Windows 10 you had before, and select "i don't have a key", Micro$oft servers will recognise your system by it's various digital serial numbers and automatically re-active windows. It won't get your data back, but it's a hell of a lot easier to upgrade or change your hard drive and get a clean installation of windows.
|Thread: advice on choosing a milling machine|
I also use the drilling function of my Mill/Drill more than anything else, and so the speed and ease of the quill's drilling function is superb, I wouldn't ever be without. (As a former Astra horizontal and vertical mill owner I'm confident of this)
Just be careful with some horizontal mill's as the vertical attachments are extremely close to the surface of the table, you'll not have enough room left to get a drill chuck + drill in! - let alone a drill chuck + drill + workpiece/vice underneath!
It all comes down to what you want to do with it! It wouldn't take much time or expense to adapt an old pillar drill to mount on a horizontal/vertical mill - giving it another feather in it's cap, and providing relatively quick and easy coordinated drilling - just so long as you've got the distance from spindle to table!
Edited By Russ B on 21/08/2017 12:21:45
|Thread: Lathe Way Felt|
I've ordered a sheet, thanks for the tip.
|Thread: What are these stone sticks?|
I thought I was the only one.........
The guy changing tyres at the classic bike races looked at me like I was stupid when I mentioned grating talc on the tubes.......... he said, "No... use french chalk" in a very worried tone....
|Thread: 2040 deadline for Diesel and Petrol cars.|
The standard diesel Outlander achieves about 38mpg in the real world (**LINK**)
Diesel costs £1.16 per litre (UK average) 4.546x£1.16 = £5.27 per UK gallon.
£5.27 in the diesel = 38 miles
£5.27 in the PHEV battery = 99.8 miles
2.62 times further on electric pound for pound in an Outlander PHEV running all electric vs all diesel.
The PHEV has a 2.0 litre petrol engine, not particularly efficient on its own. In the real world working with the hybrid power it achieves 60mpg,
Petrol costs £1.14 per litre (UK average) 4.546x£1.14 = £5.18 per UK gallon.
£5.18 in the petrol = 60 miles
£5.18 in the PHEV battery = 98.01
1.63 times further on electric pound for pound in an Outlander PHEV running all electric vs hybrid mode - and without any messing about recharging - I'd probably stick with Hybrid mode.
*sorry I got my wires crossed mid way though my train of thought - edited out*
Edited By Russ B on 26/07/2017 13:46:35
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
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.