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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: South Cheshire Model Engineering Society 50th Anniversary Gala
17/08/2018 07:36:34
South Cheshire Model Engineering Society 50th Anniversary Gala September 8th 11:--am to 4:30pm at Peacock Track Rear of Peacock Hotel Crewe Road Nantwich CW5 6NE
http://southcheshiremes.com
Steam Train Rides, Exhibition of Models Refreshements
50th anniversary.jpg
Thread: Friction Turning a Smoke Box Door
30/07/2018 06:25:11

Thanks for your comments Chaps,

I've used the double sided tape and supper glue in the past especially where you can't use the running centre to clamp the parts, but in cases where you can the masking tape works just as well if not better:- what is does is improve the coefficient of friction between the parts giving you more grip against a steel on steel drive.

One of the trouble with using the double sided tape or adhesive is that the heat generated by machining can cause is to come unstuck, and then you've got the added job of cleaning the stuff off afterwards.

Cheers

Stew

29/07/2018 11:01:11

Hi I thought this would be of interest to you chaps. Friction Turning a Smoke Box door for a 5" Gauge Loco. Basically what I've done is covered the face plate with masking tape and trapped the door up against the face plate using a running centre the friction gives enough drive to enable you to machine across the face.

This video will shows you how

Cheers
 
Stew

 

Edited By Stewart Hart on 29/07/2018 11:25:06

Edited By Stewart Hart on 29/07/2018 11:25:58

Thread: Popcorn engine
23/06/2018 18:22:22

I’ll get drawings to you soon Bob

Stew

Thread: fixed steady
15/06/2018 09:13:33

LBSC made them from wood to skim up the face of Boilers, it work as well i followed his advice and made one to skim a boiler tube up sorry I don't have a picture and the wood was reused for something else.

Stew

15/06/2018 09:11:35

LBSC made them from wood to skim up the face of Boilers

Stew

Thread: Draft Site G code generator
02/06/2018 08:17:00

Thanks for pointing me in the direction of G-Simple chaps.

I've converted the drawing successfully in G code but what do I do next, my friend with the CNC mill who is a complete novice like me says its not in the same format he uses ?. he says he gets a line of code . What i've got is a drawing with the tools paths. ?. I.m going over to see him later today we'll try and load what I have to the machine and see what happens question

Thanks for your help

Stew

29/05/2018 07:18:15

I use the free 2D draft site soft ware for my drawings, that doesn't have the G code generator activated I don't think the free version has this facility.

A quick search online comes up with a number of free G code generators can any of you chaps recommend one, this is my first attempt at CNC so I need something simple.

Cheers

Stew

Thread: AYESHA At South Cheshire MES
08/05/2018 19:59:19

Last Sunday we had the anual visit from the 2 1/2" gauge society, as well as holding one of our public running days and as I was busy helping with the public running a steaming my own 5" gauge loco I just snapped off a few pictures of the 2 1/2" loco, it was only at the end of the day when we were clearing away that someone told me that one of the Locos was none other than LBSC AYESHA could have kicked my self angry if I'd known I would have taken a video of her running and run she did.

These are the pictures I took by way of compensation.

img_1936.jpg

img_1929.jpg

img_1930.jpg

img_1942.jpg

Ho well perhaps I'll get a chance to make that video next year

Stew

Thread: Pressure as a unit of time
25/04/2018 16:23:24
Posted by Speedy Builder5 on 25/04/2018 15:41:46:

When I was working, TIME = PRESSURE. in pressure terms, 0 Psi = breakfast at home, 70 Psi after the morning meeting, Mild panic at midday, no time for lunch. Most pressure came towards the end of the day at 300Psi so the clock was about right.
BobH

Never thought of it in them terms:- working under time pressure, or pressured by time, lack of time pressure etc etc.

Stew

25/04/2018 13:37:38
Posted by Jeff Dayman on 25/04/2018 13:33:20:

Maybe when I visit the UK we can go for a pint at about 25 psi.

I don't drink pints only feet and inches crook but yes any time your over we'll make it a date.

Stew

25/04/2018 13:17:47

Take one old beat up pressure gauge

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One cheap electric clock movement

dsc03352.jpg

Cut the guts out of the gauge

dsc03361.jpg

Replace it with the movement and hey presto you have a pressure gauge clock.

dsc03362.jpg

Its amazing what you get up to when your bored

smiley

Stew

Thread: Perfecto Shaper Video
15/04/2018 20:31:40
Posted by the artfull-codger on 15/04/2018 19:24:37:

Nice little machine Stew,could never afford one years ago but got a 2nd hand adept & only sold it when I got a large alba, you could pick 'em up dead cheap then but they seem to be sought after now hence the higher price!, looks like a twintub washing machine motor driving it, dare I say the feeds feeding on the cutting stroke instead of the return stroke.

Hi Artfull

I think its the motor it was supplied with from the manufacturer seen pictures of other Perfecto shapers with a motors that look the same, having said that they could well have used them on twin tubs.

Thanks for putting me right on the direction of feed its such a long time since I last used a shaper that I couldn't remember which way it went, I just fiddled around with it until i got acceptable results having said that I was going easy with the feed rate, getting it going the correct way I sould be able to increase the rate.

Thanks

Stew

15/04/2018 14:13:04
Video Of Perfecto Shaper
Hope you find it of interest
Thread: Perfecto Shaper
13/04/2018 08:46:59
Posted by Bazyle on 02/04/2018 10:18:27:

Looking at the drawing I see a 6.8mm hole drawn for the pivot pin. Unless the Perfecto is made differently for ease of manufacture for a hobby machine then this pivot is normally a taper pin which means clapper boxes cannot be made interchangeable. The taper is 1:48 and the hole through the lot has to be reamed together.

You might see if you club has a set of ME covering 2013 when there was a series about small shapers by Mick Knights where he mentions this.

Yes I remember Mick Knights article and the taper pin I know Mick had problems finding a source for them. On my Perfecto the pin is parallel by the look of it that's how it came out of the factory the pin is nicely blued and doesn't look home made, they must have decided that a taper pin wasn't necessary in this small shaper.

Any way I've got it fixed to the bench and I've had it running I've made a few test pieces and it cuts nice a square and parallel this is what I had to do to get it running:-

Base is a kitchen work top off cut

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New tool Holder

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Checked that the knee and T slots were square to the Ram

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Then I squired the edges of the Knee to the base to aid set ups and drilled them so that I could use it as a clamp for larger flat plates.

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Had problems getting the correct size V Belt the profile was the A type profile my pully's must be different to Johns Z Profile any way got one eventually that fits.

Made a bed plate for the motor and fitted it to the base.

dsc03335.jpg

dsc03338.jpg

The feed ratchet kept missing so stripped it down and found that the pawls were badly worn so I reprofiled them and after a bit of fiddling about got it working correctly

dsc03343.jpg

I've bought a nice machine vice to go on it, now I just need to use it a bit and find out how to get the best use out of it.

Stew

Thread: Spring Time Steam Up at South Cheshire MES
11/04/2018 06:20:27
Posted by Jeff Dayman on 10/04/2018 23:41:04:

You've got the Simplex running well Stew, looks great. What's the idea of the deflector in the chimney? does it help keep the exhaust blast below face height? or is it to affect the draughting somehow? Enquiring minds want to know! Cheers JD

Its for deflecting the smoke and grit away from the driver/passengers its quite effective, but we do get some complaints in the summer about oily specks on nice summer dresses:- we just tell them it adds to the authenticity of the ride and that we don't charge for them. angry.

Stew

Thanks Stew for the deflector info.

I guess if someone complains about specks on summer dresses it would not be politically correct these days to say "step into the clubhouse here Miss - we'll remove that dress immediately!" Er....

Jeff

Your not the only one to ask that ? my three year old train mad grandson when he watched the video asked the same ?

We start them young in my family

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Stew

10/04/2018 07:16:57
Posted by Jeff Dayman on 10/04/2018 04:37:16:

You've got the Simplex running well Stew, looks great. What's the idea of the deflector in the chimney? does it help keep the exhaust blast below face height? or is it to affect the draughting somehow? Enquiring minds want to know! Cheers JD

Its for deflecting the smoke and grit away from the driver/passengers its quite effective, but we do get some complaints in the summer about oily specks on nice summer dresses:- we just tell them it adds to the authenticity of the ride and that we don't charge for them. angry.

Stew

10/04/2018 07:10:53
Posted by Boiler Bri on 09/04/2018 21:28:48:

The weather is improving and were all getting giddy about running our beloved machines. Nice to watch, but- That's a fair turn of speed you have there. You must be confident that it's not going to de rail.

Bri

I was going easy on the regulator we have a speed limit of 7mph and I was under that, but I have been clocked at 9mph devil

The track is very good:- visiting drivers are always comment how good and level it is and on the smoothness of the ride.

Why not bring your loco along and try it out visitors, from other clubs are always welcome.

Stew

09/04/2018 20:18:02

We're holding our second public running day of the year this Sunday 15th April 11:00am to 3:00pm.

I had my Simplex in steam today and took this video.

Enjoy
Stew
Thread: Simplex Gremlins Strike Again
30/03/2018 15:08:35

Zan

I was concerned with ash dropping on the axle so I also made a new ash pan and fitted a brass guard to go over the axle to try and keep the axle clean of ash.

The fact that only one axle box wore led me away from entirely blaming ash, but as I'd got it in bits any way i thought I would edge my bets.

Stew

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