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Member postings for Stewart Hart

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

Thread: Potty Mill engine materials list wanted
21/05/2019 06:57:32

Hi John

I never compiled a material list for this engine. The material is mainly low cost aluminium and steel standard stock sizes:- though I've used metric sizes it you will be no problem using the nearest imperial size.

There have been a great number of these engines built to my plans, the drawing in Thors link were done as a drawing exercise that are over complicated, if you want a set of my drawing just send me a PM with your email address and I'll mail them you.


Thread: Help a beautiful lady
20/05/2019 06:23:22

Thank you for your replies I knew I would get some good replies from the ME community, we'll follow up your suggestion today

Thanks again


19/05/2019 19:59:55

This is nothing to do with Model Engineering but this is the only way I could think of of starting a UK wide search. The problem is my 93 year old mother in-law has exstreamly marrow feat size AAA and she is desperate to buy some new shoes before the ones she has fall to bits. We took her to her usual shoe shop in North Wales on Saturday only to find that the shop had shut down and we can’t find any other shop who stock AAA width shoes so does anyone out there know of any specialist shoe shop who stocks them. You would make a lovely lady happy



Thread: Adjustable workshop perching stool
13/05/2019 20:24:16
Posted by Mark Rand on 13/05/2019 20:04:00:

Due to having been born stupid and spending 61 years improving on the original condition, I've lost the link to the (US, I think) model engineering or welding or similar forum that I got it from, but a chap posted about the same design of chair last year and also included links to some plans that he had made. While I've lost the original link, I still have the plans that I downloaded, and the 12 metres of aluminium 1" square and angle section that I bought to make one of the chairs for SWMBO in her pottery workshop and me for a welding and lathe chair in my shed.

If anyone wants to see or download my copy of the plans, they're here:-

Assembly diagram.

Parts diagram.

The material is all 1/8" thickness aluminium square tube or angle apart from the seat, which is whatever wood or bog-seat you come up with.

PS:- If anyone can remember the forum that these came from, it'd be nice to know, then we could thank the author.

Edited By Mark Rand on 13/05/2019 20:04:19

Edited By Mark Rand on 13/05/2019 20:05:15

This is the thread you want posted by a guy who goes by the name of "Ye-ole steam dude"


I got my plans from the same place, but I made mine from 20mm box section steel. I wanted a project to practice my welding on, my biggest mistake was with my first weld it took me by suprise and I burnt through the box section the other were ok and they got neater the more I did.


13/05/2019 20:18:36
Posted by Jim Nic on 13/05/2019 14:10:44:

Looks very useful Stew, is that a lavatory seat you have on it? I manage with an assortment of 3 stools but not having the kit or expertise to weld I shall have to continue doing so.


No Jim its not the old throne its off an kitchen stool I was using in the workshop, the drawing calls for a 10" diameter seat the kitchen stool was 12" so I just cut one edge of it off to make it 10".

Waste not won't not


13/05/2019 11:43:35

If I have to stand at the bench for any length of time my back start to ache I have an old kitchen stool but its height is far from ideal particularly if a move it around bench to lathe or mill or loco assembly table. Then I saw this design on one of the other forums I frequent, the seat has a clever self clamping device to adjust all you do is take your weight off it and move it to the height you want the sitters own weight provides the clamping force.

Before we have any wise cracks about the side ways photos I did turn the the correct way round but this hosting just won't load then the correct way round any suggestion why this is.




Edited By Neil Wyatt on 13/05/2019 15:10:47

Thread: Vertical Injectors
11/05/2019 17:52:05
I've ran my Loco quite a few times now with this vertical injector and so far its worked very well quite a few club members have seen it and driven my loco with it and have been very happy with its performance.
This video shows the water systems on my loco and the injector working
Thread: LBSC Ayesha in Steam
06/05/2019 08:17:31

South Cheshire MES hosted the 2 1/2" Gauge Society at there track on 5th May and had LBSC Original Ayesha locomotive in steam.

Enjoy the video we certainly enjoyed the day


Thread: 2 1/2" Gauge Society Event at South Cheshire MES
06/05/2019 08:13:13

Hi Ian

I hope you made it to the event

For those who missed it this is the Video I took it features LBSC Ayesha running on steam no mean feat for a loco built about 1920


01/05/2019 14:51:41


South Cheshire Model Engineering Society will be hosting the 2 1/2" Gauge society this Sunday 5th May. Who will be bringing along LBSC locomotive AYESHA this Locomotive is famous for the "Battle of the Boilers" held in 1922:- this battle raged between Henry Greenly, Curly Lawrence and others in the Model Engineering press for many months until they decided to settle the argument by holding and efficiency competition where Curly pitted the performance of AYESHA against other locomotives the result was a close run thing and was far from conclusive, so the controversy continued. AYESHA was at last years event and managed a sedate lap of our track which is remarkable for an 90 year old locomotive.

Visitors will be most welcome.

Our Track is Rear of Peacock Hotel, Crewe Road Nantwich Cw5 6NE

Thread: Starrett type clamps
11/04/2019 07:51:56

Thanks for your comments and interest chaps

They wern't that dificult to make.

To make the bodies a matching pair I simply bolted them together and machined them as one. I was unsure just how much the cold rolled bar would distort due to releasing the stresses:- so I roughed them out first and let them stand for a couple of days then I skimmed the base and top flat this took out the distortion.

Roughing out


Finishing off body


The jaws couidn't have been easier you just have to drill the M3 hole for the keep first before drilling 6.5 using the self centerng four jaw chuck


I used a M8 coach bolt to fabricate the screw and welded the knurled head in place.



Total material cost about £6 and not much more than a days job


model makers clamps.jpg


10/04/2019 09:36:17

These clamps are Based on Starrett No 160 tool makers clamps whilst I wouldn't call these clamps tool makers quality due to the constraints of home workshop construction they will be more than adequate for most home workshop. I made them as a perfect matching pair to enhance there usefulness.

There has been a number of discussions on the forum regarding these clamps with a lot of interest shown in them, the original Starrett clamps can be picked up on flebay they go for about £30 to £50 pounds and Starrett still sell them for around the same price.


Any way this is my attempt


And to show them as to one of their uses.


They are made from standard size mild steel bar Body 1"*5/8" jaw 5/8" Sq bolt M8. Starrett fixed the jaw with a cerclip but I've used a M3 keep screw.



Thread: A close shave or why safety glasses are a must
09/04/2019 07:46:02

I was using a burr in a dremel a few months back and for some reason or other it came adrift and flew out i just couldn't find it until the other day when I found it embedded in the roof, you can only imagine what would have happened if it had gone in my eye.

I do wear prescription safety glasses all the time when I'm in my shed, never the less its was quite sobering.


Be warned


Thread: Stress Relieving Rolled Mild Steel
05/04/2019 10:00:30

Thanks for your input chaps

the part is 1”x5/8x21/2” with the middle bit removed so it’ll bend like a banana putting the ends out of square which I want to avoid

I’ll see what roughing it out first does to it I may be able to live with the results



05/04/2019 09:11:24

Thanks Tony

The trick with the air tight tin/foil would do the trick to prevent scale, thanks for the tip

I have enough bar to have a couple of tries so I think I'll try rough machining first to see how much it warps.


05/04/2019 09:05:58

Hi Nick

Thanks for the useful graph, as I thought it shows the temp for stress relieving to be around 600 C our oven won't be hot enough.



05/04/2019 08:17:16

I want to machine a part from cold rolled mild steel bar from experience I know that the part will warp out of square and this would be a no no, also for what I have in mind hot rolled bar would not be suitable

So has any one tried stress relieving rolled mild steel bar?. I thought about sticking it in the oven but our ovens max temp is 240 C I don't think this will be hot enough as far as I can find out you stress relieve at around 600 - 700 C I,ve also considered putting it into a barbeque but that would be a bit hit and miss.and I don't want to scale the bar

My other option would be to rough the part out and let it sit for a week or two to let the stresses work on to part, then to finish machine it but I'm unsure if this will be effective enough.

Any ideas views enlightened


Thread: Potty mill
03/04/2019 19:19:01
Posted by Chris Bakery�s on 03/04/2019 13:13:04:

Does anybody have or know where I can get the plans for the “potty mill engine “

Hi Chris

Just send me a PM with your email address and I’ll send you the plans



Thread: Potty overcrank
29/03/2019 17:16:35

Well I’m tickled pink to see so many well made engines to my designs great job chaps: keep them coming


29/03/2019 08:13:41

Blimeye just how many of these engines are out there

Yet another lovely build well done Jes


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