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Member postings for vintagengineer

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

Thread: G-gem gib or g-golf -gib?
08/10/2018 13:56:48

I once worked with lady called Gill Gill. Now that caused a few problems with some customers!

Thread: homemade slip roll
06/10/2018 11:14:28

You can make closed hoops on a pyramid rolls. You need to use a longer length of material and cut off the excess after rolling.

Thread: Alternative Heat Source
06/10/2018 11:11:42

In South Africa we had a a bottle catch fire, the foreman got one of the native labourers to put a sling around it and the crane driver dropped it in the boiler pond. As far as I know it's still there!

You only need acetylene in the workshop if you are gas welding steel or ali. Everything else can be done with propane.

Thread: More powerful batteries to make steam?
30/09/2018 09:04:32

Oil refineries used to run steam trains that didn't have any boilers. They used to charge the steam chest with superheated very high pressure steam from a piped system and the boiler house was a couple of miles away.

Thread: non slotted screws
30/09/2018 08:58:48

Instead of hammering them you could squeeze them which would give a tighter fit. Getting the strakes to the correct helix is quite easy if you set your rollers up correctly.

Posted by Garry Coles on 30/09/2018 08:47:16:

Ok thanks everybody for the tech input. I will now go ahead and use round head rivets right through the rim and hammer them into the counter sink.

Thanks

Garry

Thread: Solder..?
24/08/2018 08:50:46

I thought Yorkshire fittings were so named because they used less solder!

Thread: Steering Wheel - how was it made?
17/08/2018 09:57:02

It looks very similar to an Austin 7 rim. The reason the tube is split is it was cheaper then welded tube. It would have been rolled into a circle and the welded.

Thread: Stanley - Quality?
03/08/2018 09:19:44

I coach paint cars and the only brushes that are any good are Hamilton and Purdy brushes. A 3" Purdy will set up back about £45.

Thread: Knurling Tools
31/07/2018 18:00:10

Knurling does raise the material and increases the diameter. It is often used as a bodge foe bearing housings that are undersize.

Also why do people put the wrong knurls on konbs. Straight knurls are for knobs that need turning and diamond knurls are for knobs that need pulling.

Thread: 4mm bend circle
19/07/2018 12:18:53

You could try filling it with water and freezing it then bend it.

Thread: Am I getting an irritable old git?
02/07/2018 09:02:01

Cowboy 1: Hey, partner! Go help your uncle jack off a horse!
Cowboy 2: How many times do I have to tell you, it's "help your Uncle Jack off a horse!
Cowboy 1: Oh, sorry for making that homosexual grammar error!

Thread: Welding Cast Iron
01/07/2018 21:58:40

Might be mallable iron.

Thread: Vauxhall Omega Aircon
30/06/2018 23:05:39

Shoulder bolts have a plain section that is larger than the threaded section.

30/06/2018 22:20:50

.The M8 is for jacking the pulley apart and the M6 should be a shoulder bolt.

Thread: Workshop in this weather..?
30/06/2018 21:40:55

Mine is a constant 68F. I installed a air to air heat pump.

Thread: Is this true..?
30/06/2018 21:32:06

If you asked me to make something in Aluminium I would make it from an old saucepan. If you asked me to make something from alloy I would ask what the end product would used for and choose a suitable alloy. Putting a thread in aluminium is like putting a thread in toffee! Use the correct thread for material you are using and the loading you are going to subject to.

Posted by Andrew Johnston on 30/06/2018 19:00:26:
Posted by vintagengineer on 30/06/2018 17:56:14:

Everyone is refering to aluminium, when it doesn't actually exist. They are all alloys of some descripion.

Oh dear, I made an assumption that people would have the wit to realise I using the term alumimium as a shortcut to mean a common alloy. Clearly I was wrong. smile

Mind you, 1050A is around 99+% pure aluminium. And it's absolutely horrible to machine, like fudge.

ANdrew

30/06/2018 17:56:14

Everyone is refering to aluminium, when it doesn't actually exist. They are all alloys of some description, I have casting cast in an alloy that can then be hardened to increase it's strength.

Thread: Hot rail tracks
30/06/2018 00:48:47

I thought modern welded tracks where allowed to move in their sabots?

Thread: Is this true..?
30/06/2018 00:47:14

RR used to specify helicoils for all aluminium threads.

Posted by Neil Lickfold on 29/06/2018 23:57:26:

The 1.5D or 2.D rule work well for similar strength materials. But a steel capscrew in an aluminium housing that is frequently being reassembled, the threads in the Al housing will last much longer with a 3d thread engaugement . On those we replace the worn threads with 2D helicoils and they are ok, the ones that had the 2d thread in the 1st place. Irony is to get the 2d helicoils in takes the same room as tapping for 3D threads. The 3D threaded ones have not failed after 4 years of service. The 2D threaded ones failed in less than a year. For some materials fine pitch series threads are stronger than the course pitch series.

Neil

Thread: Filing Cast Iron
27/06/2018 23:52:31

Rub chalk on the file and use a file card to clean the file.

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