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Member postings for Brian O'Connor

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

Thread: Neowise
16/07/2020 08:21:19

Today's APOD picture:


Thread: Ultrasonic Cleaner
10/07/2020 08:57:54

Thank you, gentlemen, for all your replies. I am now well set up for tackling the first two items on my list, but still have to find advice on how to clean oil-based paint from an airbrush. All the advice I can find on the web is for removing acrylic paint, so not much use. I shall just have to experiment by painting a bit of scrap metal and starting off with household detergent.


09/07/2020 07:56:58

I have recently bought an ultrasonic cleaner to accomplish the following tasks:

Clean loco components such as injectors and clacks

Remove slight surface rust from small nuts and bolts

Clean airbrush after using oil-based enamel

Can someone please suggest what I should add to the water, and how much, to achieve each of the above. Thanks.


Thread: Centering Microscope
06/07/2020 11:44:39

I made the Hemingway centring microscope which I highly recommend and wouldn't be without. The prism is glued in place and the graticule centred using four screws.

Hemingway Centring Microscope.jpg

Thread: Pesky Government Announcement!
18/06/2020 08:20:11

Get yourself an internet radio or listen on your computer or phone. There are several US stations that are funded by public subscription so almost continuous music and no adverts.


Thread: Macro-photography
09/06/2020 07:37:05

This one had obviously had a good feed of my dog's blood, they are tiny when empty. You have to be very careful how you remove a tick because you can leave the mouth parts behind, which can fester and make the dog very ill. I used a special tool you can buy which was probably responsible for some of the legs being pruned.

08/06/2020 18:02:17

berties tick.jpg

Picked this little chap off my dog

Thread: Reilang oil cans
12/10/2019 09:00:28


Be aware that Reilang oilers come with one or two pumps and with aluminium or plastic bodies. On the double pump version the second pump comes into play wnen the oiler is held upside down.


Thread: The Workshop Progress Thread 2019
07/06/2019 08:15:27
Posted by JasonB on 06/06/2019 18:45:13:

. . .Enjoy the ignitor they are always "interesting" to make

Well it won't be the only component of this engine that has been 'interesting' to make!

From what I've read I understand that hit & miss engines can be quite tricky to get to run reliably, or at least to miss reliably, so I might come knocking on your door for some advice when the time comes.


07/06/2019 08:08:29
Posted by Roderick Jenkins on 06/06/2019 17:12:52:

. . . . Looking forward to a video of it going.


Not as much as I am! But, don't hold your breath, I'm a slow worker.


06/06/2019 14:37:52

Just finished making the carburettor for my Star Hit & Miss engine, a tricky little jobby. Remaining tasks are the ball governor, igniter, a few bits and pieces then stripdown and painting.

Bstar engine june 2019.jpg

Thread: Interesting??
19/05/2019 18:57:52

To slightly misquote H L Mencken, "There is always an easy solution to every human problem - neat, plausible and wrong".


Thread: New member, Buckinghamshire
09/01/2019 09:46:43

Hello Robert,

If you would like to run your loco somewhere nearer to you than Bracknell, the High Wycombe club would make you very welcome. We have a three-gauge raised track at Holmer Green and a very friendly bunch of guys.


Thread: The Workshop Progress thread 2018
18/09/2018 23:05:31

Thank you all for your kind comments. I think that this was the most stressful bit of machining that I have ever done. I didn't have an image of the finished piece, only (American) drawings so I spent a lot of time thinking about what it would look like and how I was going to tackle making it. I was terrified of screwing up at every stage, it's so easy to turn the wrong wheel ot turn it the wrong way. I do have DROs on mill and lathe and don't know how I would have managed without them. I also made extensive use of my centring microscope (Hemingway kit - well worth making).


For the top feature (the support for the governor) I turned the top bit on the lathe with it held in the 4-jaw but had to file the lower part.

18/09/2018 15:38:52


Just finished the Cam Gear Bracket for my Star hit&miss engine. It started out as a 3in x 3in x 1.5in block of cast iron. It now weighs less than 10% of its original weight. Bucket of swarf, anyone?


01/03/2018 20:08:04

Many thanks, Jason, for sorting the picture. B

01/03/2018 16:51:40

Thanks, Jason. You could probably built two of these by now.

When viewing the photo I realised that in reducing the size I had got the aspect ratio wrong. The image in my album has been corrected and although it has the same name as before, my post above cannot find it and I can not find any way of editing my post. Can you help restore the picture please?


01/03/2018 11:23:36

Just finished honing and lapping the cylinder and piston of my Star Hit & Miss engine to get a nice sliding fit. A first assembly and it's starting to look like an engine. The iron castings were a delight to machine, no blow holes, no chilled margins and all the lumps and bumps very accurately placed. Still a long way to go though.


Edited By JasonB on 01/03/2018 17:48:35

Thread: Sun Dogs in Mississauga
07/01/2018 09:02:45

Another one here:


Thread: Why Column gear shift
28/11/2017 09:19:27

Column gear change went along with a bench front seat so that you could get three people in the front (pre-safety belt days!).


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