smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Jan 14, 2016 13:44:37 GMT
OK. Here are some bits. Laser cut frames with horns, axle boxes machined square, buffer beams and commercial boiler. I took these to the club's "Bits Night" yesterday so I will be severely ribbed if I don't see this through to the end. (Will try and improve the pictures in future) Pete.
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Post by Jim on Jan 14, 2016 20:15:40 GMT
It's all part of the fun Pete, you show your mates the latest goodies to arrive then they want to know when will the big steam up be? They've given up on me after 7 years of waiting. Jim
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Juliet
Jan 14, 2016 21:09:44 GMT
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Post by smallbrother on Jan 14, 2016 21:09:44 GMT
Some of the projects on view at the club last night were over 40 years old.
Pete.
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Juliet
Jan 14, 2016 22:44:58 GMT
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Post by GWR 101 on Jan 14, 2016 22:44:58 GMT
Hi Pete, tell me about it I started my Juliet in the 1970's. Regards Paul
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Juliet
Jan 15, 2016 9:47:22 GMT
Post by steamcoal on Jan 15, 2016 9:47:22 GMT
There are plenty of 40+ year old projects.
My mate even has finished engines sitting in crates for the last 15years when he emigrated to New Zealand. There even completed engines...no building required! How bad can that be.
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Jan 15, 2016 17:00:02 GMT
Horn keeps made today - have to be the easiest bit on the loco.
Someone at the club repeated the wise old words - try and do something every day, even if it is drilling one hole.
Pete.
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Juliet
Jan 15, 2016 19:50:53 GMT
Post by Roger on Jan 15, 2016 19:50:53 GMT
Horn keeps made today - have to be the easiest bit on the loco. Someone at the club repeated the wise old words - try and do something every day, even if it is drilling one hole. Pete. Hi Pete, don't forget to allow a little clearance for when the axle is at a slight angle. I think that advice is extremely good. Not because it necessarily moves the build on very much, but because it prevents one day's inactivity turning into days, weeks, months.....
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Jan 15, 2016 20:45:51 GMT
Hi Roger - the keeps are screwed to the underside of the horns so (hopefully!) won't get in the way.
I think it is all about momentum. I have some wonderful back-up expertise available so no excuses will be acceptable.
What I particularly like is chewing the fat with other modellers/engineers. I don't half miss the discussions I used to have with other engineers when we were problem solving when I was working for a living.
Pete.
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Post by Jim on Jan 15, 2016 21:29:41 GMT
Someone at the club repeated the wise old words - try and do something every day, even if it is drilling one hole. Pete. I was told that one too Pete and if I ever meet the bloke I'll dong him with my big 7BA spanner. There's just too many holes and that's not counting the wrong ones I drill. Be warned he's a fibber Pete. Jim
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Jan 17, 2016 16:37:28 GMT
Fitted the horn keeps today. My fingers were freezing by the end of it!
Axle blocks next on the list.
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Juliet
Mar 4, 2016 23:31:25 GMT
Post by GWR 101 on Mar 4, 2016 23:31:25 GMT
Hi Pete, just noticed your comments on the other thread about the axle boxes. Hope you don't mind me mentioning this but I was advised to use a different method for the suspension than that shown on the drawings. It's more work and more visible but I used under slung springs which allows for longer springs and greater choice of springs. I haven't finished and run mine yet so I can't comment on it in service, but others may be able to advise. Regards Paul
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Juliet
Mar 5, 2016 9:07:14 GMT
Post by smallbrother on Mar 5, 2016 9:07:14 GMT
Hi Pete, just noticed your comments on the other thread about the axle boxes. Hope you don't mind me mentioning this but I was advised to use a different method for the suspension than that shown on the drawings. It's more work and more visible but I used under slung springs which allows for longer springs and greater choice of springs. I haven't finished and run mine yet so I can't comment on it in service, but others may be able to advise. Regards Paul Thanks Paul, Apart from buying the springs I haven't drilled any holes or anything. Another Newport member is quite well advanced with his, (his father began it decades ago) so will see what he has done. Pete.
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Juliet
Mar 5, 2016 12:42:30 GMT
Post by GWR 101 on Mar 5, 2016 12:42:30 GMT
Hi Pete, that sounds like a good plan, as previously stated mine hasn't seen any real loading yet and I undertook this bit many years ago so I can't recall who suggested that I changed the approach. I have attached a photo showing the method that I have used, you may notice that the steam inlet and exhaust are also not to the drawings. I couldn't get on with the running screw type connections so modified mine to incorporate mating faces and coupler nuts. Also following advice from this site I replaced the exhaust "T" with a "Y" to hopefully give a better gas flow. Hope this is of some help (keep warm ) Regards Paul.
Sorry about the quality of the photo, and the oil feed pipe hasn't been fitted to the inlet "T" yet.
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Post by Jim on Mar 5, 2016 17:53:13 GMT
Just to add to Paul's suggestion, a group of us out here found a source of handy small springs in clothes pegs that could be worth looking at. I've used them successfully for the springing on the tender. Just a thought.
Jim
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Mar 11, 2016 9:17:43 GMT
Here is an axlebox in the mini-mill. Slide slot being milled. Miraculously, it fitted quite snugly in the horn. 3 more to do. I am getting quicker but am measuring many times to avoid major blunders. Pete.
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dc309
Seasoned Member
Posts: 146
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Juliet
Mar 11, 2016 19:15:39 GMT
Post by dc309 on Mar 11, 2016 19:15:39 GMT
Looking good Pete! Are you machining them from castings? I'm hoping to machine my horns this weekend and possibly start the boxes on Sunday if all goes to plan
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Juliet
Mar 11, 2016 19:31:58 GMT
uuu likes this
Post by smallbrother on Mar 11, 2016 19:31:58 GMT
Looking good Pete! Are you machining them from castings? I'm hoping to machine my horns this weekend and possibly start the boxes on Sunday if all goes to plan Indeed they are from a cast block. In fact the second block of gunmetal. I made a right mess of the first lot as I wasn't locking the milling head correctly. Just done the 2nd box 30 minutes ago and the 1/2" axle bar fits nicely through the pair of boxes and all looking square. Taking me a long time as I have to wind them out such a long way to check how much I am taking off. I am sure there are things available to make this easier but I am trying to keep it simple, to suit my abilities! Am enjoying the Dougal work by the way. Pete.
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dc309
Seasoned Member
Posts: 146
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Juliet
Mar 11, 2016 19:42:28 GMT
Jim likes this
Post by dc309 on Mar 11, 2016 19:42:28 GMT
I don't really worry about the time it takes me to do something - If it's right, it's an achievement! When I did my Juliet wheels, I cocked one up and had to get a new casting... That's a bit embarrassing on the phone to the supplier asking for 1 wheel!
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Post by smallbrother on Mar 20, 2016 11:43:14 GMT
I was going to post a photo of the axleboxes fitted in the frames but Photobucket is doing strange things on my account.
I cut the slots in my mini-mill but they needed a bit of filing to get them into the frames. They seem to be reasonably square and a 1/2" diam bar slides through and is square.
Anyway, was wondering how tight a fit axles should be in the axleboxes. The nominal 1/2" steel bar is a little bit loose in the 1/2" holes.
Pete.
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,268
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Juliet
Mar 21, 2016 22:19:44 GMT
Post by smallbrother on Mar 21, 2016 22:19:44 GMT
Started the axles today.
I intend to put a grubscrew to fix the wheel to the axle. (After quartering of course).
As one is steel and the other cast iron, am I right that I need to put a nick in the axle to stop the drill bit going only through the cast iron wheel?
Pete.
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