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Member postings for not done it yet

Here is a list of all the postings not done it yet has made in our forums. Click on a thread name to jump to the thread.

Thread: Mini-Lathe setup for an absolute beginner?
22/05/2019 07:56:54

This lathe only weighs Only 30 - 35kg, assuming the chuck, tailstock, change gears, tools etc (parts that are easily separated).

Likely less than 30kg if the drip tray and apron were removed.

No more mass than a suitcase allowed in the hold on most international flights (not ryan air!)?

I am not young (into my 7th decade) with a bad back (on occasions)) and a recipient of a quadruple bypass, but I fancy I might tuck it on my shoulder and carry it up in one go. It would weigh no more than the vertical head of my mill.

There must be someone local who would carry it up for you? The weight distributed between two individuals might be no more than a full shopping bag for each to share? It is in excess of HSE guide-lines, admittedly - but they are for paid workers. When I was younger, 50 kg bags of materials were the norm (cement, fertiliser, etc)

I regularly carry two packs, each of 6 x 2litre containers from the car to the house, one in each hand.

Standard domestic stairs are about 80cm wide. Risers and going are usually around 20cm. I expect that stairs in flats are necessarily wider? So I see no good reason why a machine of this diminutive size should present any great logistical problem of moving it from one floor level to another. Likely easy enough to move it one step at a time with the machine able to perch on each step without support.

Thread: The Chocolate Fireguard as designed by Mercedes Benz
19/05/2019 22:17:40
Posted by martin perman on 19/05/2019 20:41:10:

I would slightly disagree with the above about making special trips to get our fossil fuels, I'm making a wild guess here but I would suggest that most of us here are either getting close to or are retired and if they are like me buy fuel whilst shopping, visiting family etc I never drive to a petrol station just for fuel particularly as the nearest places are four miles in either direction, and I use an AA app which tells me the cheapest price on the day and because of that I wait until I'm at 1/4 tank to maximise the saving, using vouchers from Morrisons etc. My other mode of transport is my mobility scooter used to get to the local garden centre or village shop. I do my bit in a small way. I would suggest that your vehicle still needs an MOT and servicing to keep it fit for purpose and I would also assume that as its a specialist vehicle your bills would compare similarly to mine relatively speaking.

Martin P

No special trips if you can charge at home and only need to charge otherwise, on a longer journey. City dwellers likely use the vehicle mainly for short journeys in the city.

Depends on which dpf chemical is used in a diesel. Filling automatically adds a dose of additive on our 607, so only filling for a full tank of fuel is far more economical than keeping the tank topped up. Additive is not cheap and most don’t think about it when costing fuel for trips. It doesn’t dispense much (40ml?) but it adds up. It is safe to store diesel at home in a can - more-so than petrol.

Maintenance is a large money-maker for car dealerships. They are most certainly worried about reduced servicing requirements for BEVs. Brakes don’t get used very much, no engine/gearbox maintenance required, no fuel pumps, tanks, starter motors, alternators etc. Nissan increased, substantially, the cost of a new battery but this is while Tesla have reduced the battery costs by a huge amount. Go figure why Nissan did that!

Car salesmen would prefer you to buy an ICE vehicle from their range. Why? Because of the increased maintenance charges they can make during its lifetime. Because you will be more likely to change it for another in a couple years time. Because they make more commission on those models. Because ...

As BEVs become more prevalent, the ICE variants will be the ones needing the specialist maintenance. Dealerships charge £50 just to connect the fault code reader, whereas the BEV will self-diagnose most faults - if and when they occur.

I was wrong about your leccy costs for your Scotland trip in my earlier post. Sufficient power to get to the border and then no fuel costs in Scotland, or to get most of the way home! So about ten quids worth for the whole trip!

Thread: Help a beautiful lady
19/05/2019 21:21:39

Might try Northampton as well. I thought Nottingham was famous for machine-made lace....

Thread: Thread Pitch Info.
19/05/2019 18:45:27

While getting the thread to the correct form, presumably the fit is not that important - as in the item needs to be retained on register surfaces, the thread simply securing the part in the correct registration position. A very tight, close fitting thread might even prevent the registration surfaces locating precisely, and so need easing off?

Thread: stamford show vandals
19/05/2019 15:22:20

They are not ‘fools’, they are morons!

Thread: oil for lubricating lathe
19/05/2019 09:25:09

Have you searched for the topic? ‘Lubrication’ brings up a host of threads on the subject.

Thread: Harrison's Equipment
17/05/2019 20:44:57

If you think Harrison was amazing, look up the Antikythera machine. Definitely a example of extremely competent workmanship from a long time ago. Skills, to make astonishingly precise mechanisms, have been around for a long time.

Edited By not done it yet on 17/05/2019 20:45:27

Thread: Which thread for T nuts
17/05/2019 08:57:32

In many instances I use a bolt instead of a nut, but combined with a nut. I can screw in the bolt until it stops, then retract it say three or four turns, apply a spanner to the bolt head, to prevent it turning, and tighten down with the nut. That way, there is no chance of breaking out the slot casting by that mistake while making sure the bolt is theaded as deep as practicable into the T nut threads. T nuts are staked, but better safe than sorry....

Thread: aching ribs - posture
17/05/2019 07:25:30

One specific exercise could be filing metal - at the proper height for your stature.smiley

Thread: Jensen #35 Steam Engine - Working multiple Stamping Mills
16/05/2019 14:26:27

Didn’t run earlier but running OK now.

What a cacophony of hammering sounds! The engine did well - just a tad better than the flame gulper!smiley

Meccano lives on. I liked that vid.

Thread: Drilling cast iron - where did I go wrong?
16/05/2019 06:53:33

If I had chatter with a drill, I would revert to an end mill. Far better dimensional control.

Thread: A train of engines
16/05/2019 06:47:15

Quite a lot of notional horsepower in that ‘train’!

Thread: Door knob collar
15/05/2019 19:43:55

You could make them in aluminium and coat them with one of those ‘patina’ solutions. A cheaper option, or maybe not...

Thread: Nickel Plating Brass
15/05/2019 07:16:19

Jim,

I like the disposable gloves!

Much more important if chromium plating.

Thread: The Chocolate Fireguard as designed by Mercedes Benz
14/05/2019 14:44:27
Posted by duncan webster on 14/05/2019 10:10:24:
Posted by Samsaranda on 14/05/2019 09:36:27:

Colin, I await the debut of an electric Caterham 7.

Dave W

Well there is already a Isle of Man TT race for electric bikes, a bit spooky seeing seriously quick bikes which make no noise electric TT

Not only motorcycles. Formula - E is also becoming a popular motor racing format. They used to swap cars half way through the race, but now race with just the one fully charged car for something like 45 minutes plus a further lap.

14/05/2019 14:39:18
Posted by roy entwistle on 14/05/2019 11:35:00:

What happened to all the solar panels producing hot water I seem to remember a few years back ?

Roy

A lot of them are still supplying hot water for their owners. The technology has mostly been replaced by PV which, while surplus can be used to heat the domestic hot water cylinder and the non-surplus can run the home, has become so cheap that the evacuated tube technology has become more expensive than PV. Thermal collectors are not multi-purpose items. They can be more efficient at energy collection than PV panels, mind.

14/05/2019 14:29:34
Posted by pgk pgk on 13/05/2019 22:58:52

...

!0yrs ago the idea of a practical electric car would probably have been looked at as as cuckoo as the sinclair c5.
At the moment I agree that the things aren't cheap or if one sticks with small batteries then it's just a daily short commute. Things are happening .. there's more than one 'Semi' (mercan for artic) in the pipeline with 500+ mile ranges and things like multiple input chargers. There are also pickup trucks in design with plans for those to have comparative 300 mile ranges and some interesting features such as a 120v outlet for remote site work (aimed at the US rural market).
The early battery packs cost somewhere around $300/KWH and are down towards $100 now. Motor efficiency is up also and hopefully longevity of the overall vehicle.
If nothing else it stirs the rivals' options to be cleaner. I still keep an ICE vehicle about to hedge my bets: bad weather, power cuts etc and because it's fun too

pgk.

Electric cars were debuted around the same time as fossil fuelled ones. Royal Enfield made the E8000 back in the 1970s - look up Jonny Smith and his ‘flux capacitor’ electric car on u-toob if you want to see just how quick a 1970s electric car can go nowadays, with just a ‘few tweaks’.smiley

Thread: North West 200 coverage
14/05/2019 14:18:53
Posted by magpie on 14/05/2019 09:29:10:

Just the opposite to Chris, I had no idea what it was all about. I have managed to do 78 circuits of the sun without ever wanting to own a motorbike.

That is a fair distance - and at around 20km/s! People don’t really know we are moving at about 500mph all the time at UK latitudes, as well as much faster than a speeding bullet!

Thread: Cutting steel to size
14/05/2019 14:12:06

Isn’t the OP only wanting bits up to 40 mm in diameter? Cutting, then grinding with an angle grinder would work but I very much doubt Steve would master cutting a ~40mm circle with the set up shown above.

Like trepanning - again easier for a new starter to trepan larger diameters with shallow grooves, but not so easy for the smaller ones, particularly deeper, in thicker metal.

14/05/2019 05:23:47
Posted by Nicholas Farr on 14/05/2019 00:35:10:
Posted by andrew lyner on 13/05/2019 20:45:43:

but a grinder won’t do circles.

Hi Andrew, not strictly true. You can cut a disc with an angel grinder by starting with a square the size you want your disc (or slight bigger if you need to tidy up) mark the disc out on the square and then cut a straight line at 45 degrees on each corner so that it just touches the circle that you have marked. once you have the four corners cut, you can then cut two more straight lines each side of the corner cuts you have just cut and again just touching the circle you have marked after that you can do the same on each side of those you have just cut. You will come to a stage where you have a knobbly circle and the high points can then be flushed down to the circle line that you marked, using a flap disc. It's a bit long winded though and you need to have a good hand/eye coordination and keep the disc perpendicular to the metal, but it can be done. Of course, if you can get most of it cut by this method and can then trim the final diameter on the lathe all the better.

Regards Nick.

Perhaps Andrew should have qualified his statement and explained that angle grinders can only cut angles and cannot cut in circles. Ie, they can only cut straight lines.

Of course, even then the pedants amongst us might well have pointed out that a straight line is, in fact, part of a circle (of infinite radius). You just can’t win, on the simple specifics, with some.

Perhaps you have the time to make an infinite number of cuts (all at a tangent to the circumference desired), in order to produce a circle. Most of us don’t, as it would take a very long time.

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