Results 136 to 150 of 697
Thread: GNR Stirling Locomotive
-
31st January 2017, 04:28 PM #136GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
-
31st January 2017 04:28 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
31st January 2017, 06:10 PM #137
Looking great!
But it's the little details that put it over the top.
-
31st January 2017, 06:31 PM #138GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
Hi,
Still working on the basics of the loco. The challenging part will be the "teardrop holes" in the splash guards of the 8 foot main drive wheels. Also the detail of the controls inside the cab. Reckon this loco may take up to December to complete - it's enjoyable
Regards
Keith
-
31st January 2017, 08:07 PM #139
Looking good Keith
DaveTTC
Turning Wood into Art
-
1st February 2017, 02:38 AM #140
-
1st February 2017, 08:41 AM #141GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
-
1st February 2017, 10:32 AM #142
-
2nd February 2017, 03:31 PM #143GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
Hi All,
A top mate once told me that if I get cracking in any joins that I have made - the best remedy is to cut the crack out and repair it.
Here is the tip that I was told that may benefit others.
There was a crack developing between the joins of my Stirling piston cylinders and the smokebox. This was on both sides.
Using a dremel - cut out the crack to a depth of about 3mm.
Fill the crack with Bodyfiller (that may give a bit of a clue).
Allow to set - about an hour and then sand back with 120, 180 and wet/dry paper.
Give at least 2 coats of primer.
The crack should never come back.
I have also been working on my piston drive assemblies on both sides of the loco. I cut these out and laminated with 8mm thick (cut on table saw) pine. This gives me the exact width for the gap for my crank arm. The side bolt boss and the piston shaft guide was made out of pine offcuts that I turned in the woodlathe to 18mm diameter and then drilled with a forstner bit.
Regards
Keith
38.jpg 39.jpg40.jpg 41.jpg 42.jpg
-
2nd February 2017, 04:34 PM #144
Sometimes one can get all cracked up about puns too Keith but bog won't fix them, only laughter... Top job sir. Cheers, Peter
-
5th February 2017, 01:43 PM #145GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
Hi All,
I have been working on the design of the piston drive cranks. Sketched up from the photos I had - (I think they look pretty much to scale) and then copied them on my printer. That way I could get both arms the same. Cut them out and then used a cheap glue stick to adhere the paper to the pine. I have found that if I use PVA glue it impacts on the surface of the pine and is a real pain to sand off.
I cut out the arm roughly on the bandsaw and then filed and sanded using 120 and 180 paper. I used a 3/8" bolt as my main connecting shaft and turned the head down on my metal lathe to give it the round shaft head.
The spacer between the arm and the wheel is turned out of 25mm aluminium. The bearing oiler nipple is made out of 6mm aluminium turned down and drilled with a 1.5mm drill.
I recessed the inside of the wheel with a forstner bit so the nut won't protrude.
The second photo gives an indication of size using my empty beer can.
Now to finish off the other side crank arm.
Regards
Keith
43.jpg 44.jpg
By the way Peter - We won at bowls Yesterday - Maximum points - now in the four
-
5th February 2017, 06:08 PM #146
I guess you mean connecting rods and crank bearing. The crank bearing (on the driving wheel) is often referred to as the "Big End bearing", the other end on the crosshead being the "Little End".
Wait until you start working on the motion of the Garratt (at Drysdale or Belgrave) and you will appreciate your small scale, two cylinder engine.
-
5th February 2017, 08:23 PM #147
....
Thank you for the most useful tip on using the "glue stick".....
Congratulations on the win at bowls, final you've done it sir, WELL DONE....
lawn_bowling.jpg
And who was the person who emptied that beer can on you??
Cheers, Peter
-
5th February 2017, 09:58 PM #148GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
Love the little cartoon Peter.
Yeah - I emptied the can
Prefer Carlton Draught though.
Regards
Keith
-
7th February 2017, 02:15 PM #149GOLD MEMBER
- Join Date
- Apr 2013
- Location
- Torquay
- Posts
- 4,421
Hi All,
I finished off the other side coupling rod and then started to do some work on the top of the boiler. I don't think it matters too much if you jump from one component to another that is totally different - in the longer term everything has to be made and fitted anyway.
I am happy how the loco is going.
I have made up the main steam whistle. I went online and looked up an auction site for steam whistles. I found one that looks very similar to the Stirling - downloaded the photo and then drew it up to my scale. All the components for the whistle are made out of aluminium (including the handle). The handle was the most difficult. I cut it out of 3mm aluminium sheet and then filed it down to the shape I wanted and then used sandpaper to round it off. The handle bends really easy by hand in the vice. I used 25mm aluminium round as my form to bend around. The whistle will eventually be spray painted in "Super Gold" and will look like polished brass.
I have also made up the steam dome although it doesn't look like the more recent style steam dome (perhaps you can help us out on the Kevin "Handyjack"). I laminated 5 pieces of 19mm pine and clamped them overnight. I turned up the dome on the woodlathe and then sanded the base on a spindle sander to get the contour of the boiler. This dome will also be finished in "Super Gold" to look like polished brass.
The next things I am going to work on are the smokebox door fittings.
I have also included a photo of the loco looking out my shed - because I like the photo
Regards
Keith
45.jpg 46.jpg
-
7th February 2017, 02:41 PM #150
The 2nd photo looks really cool, almost life like
The person who never made a mistake never made anything
Cheers
Ray
Similar Threads
-
City of Stirling Men's Shed Open Day
By Malcolm Eaton in forum MEN'S SHEDS / MEN IN SHEDSReplies: 0Last Post: 27th November 2015, 09:03 AM -
Stirling Engines in Australia
By STEAM in forum METALWORK FORUMReplies: 12Last Post: 4th November 2011, 07:57 PM -
Stirling engine help
By xXvapourXx in forum METALWORK FORUMReplies: 14Last Post: 9th July 2011, 11:35 AM -
Stirling young Chap
By wheelinround in forum WOODTURNING - GENERALReplies: 23Last Post: 31st March 2010, 10:06 PM