7 1/4" curly spokey wheels

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7 1/4" curly spokey wheels
Topic Started: 22 Sep 2009, 12:43 AM (343 Views)
andysleigh	22 Sep 2009, 12:43 AM Post #1
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	Hi all does anybody know if 7 1/4" curly spoked wheels are available anywhere? anybody whos had a pattern made etc? I would quite like to make a 7 1/4" slate wagon. Andy



stockers	22 Sep 2009, 07:31 AM Post #2
Porter Posts: 13 Group: Member Member #647 Joined: April 15, 2008	Andy, The Engineer's Emporium do a curly spoke, both as a casting and fully machined. Curiously (to me) much of what they do isn't on their website but is in their various catalogues (general stuff, mini Lister and Hudson). Have a chat with them on 01455 220340. best
	Chris


craiggluyas	22 Sep 2009, 08:26 AM Post #3
Director Posts: 2,278 Group: MRMT Trustees Member #46 Joined: October 5, 2006	Andy, You could also just get some profiled from plate. If you want any prices, I know of quite a few firms who can laser cut 25mm thick. Craig
	Craig Gluyas Talking to one's self is a sign of madness. I talk to my imaginary friend.


andysleigh	22 Sep 2009, 03:02 PM Post #4
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	Hi guys many thanks for the help! I shall have a chat with the emporium. I found an old one of their catalogues which has them in, jsut no price if they are charging allot, then the laser cut ones may be the way to go. thanks again andy Edited by andysleigh, 22 Sep 2009, 03:23 PM.



SillyBilly	23 Sep 2009, 10:18 PM Post #5
Ticket Collector Posts: 82 Group: Member Member #445 Joined: January 19, 2008	I've wondered about laser cut ones in the past, how hard does the laser cutting process make the edges? Is it still machineable?
	Cheers, William a.k.a Silly Billy Joys of Life Railway Revival Project


andysleigh	23 Sep 2009, 11:42 PM Post #6
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	from what i have heard, its not very machineable. somebody told me about someone who got some frames laser cut, and the holes were a bit to small , to he used a carbide tipped reamer and it blunted it.



craiggluyas	24 Sep 2009, 08:15 AM Post #7
Director Posts: 2,278 Group: MRMT Trustees Member #46 Joined: October 5, 2006	Strange that, I have used laser cutting for years both at work at in the hobby (most of the 15" gauge diesel bits have been) and although it does tend to harden the edge slightly, it is still very easy to drill with a normal HSS drill and even tap the laser cut holes. It does depend on the material though, the heat on a high carbon content material will harden the edge. I have used flamecut wheels in the past, before laser cutting was so prolific, where there is more prolonged heat, and although there was a hardened edge it was fairly easy to turn it off. One note here - I don't usually like plate cut wheels as they tend to wear oval, but for something like this where there is limited loads and the alternative is a cast iron casting it would be fine!
	Craig Gluyas Talking to one's self is a sign of madness. I talk to my imaginary friend.


andysleigh	24 Sep 2009, 04:59 PM Post #8
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	well, after a couple of rather.. short and informative emails from the emporium, i think they are no longer doing them.



david colley	25 Sep 2009, 07:36 PM Post #9
Instigator of Waving. Posts: 496 Group: Moderators Member #24 Joined: August 18, 2006	William, PNP are doing them for Ł18 a piece. http://www.pnp-railways.co.uk/shop/ All the best, David
	"Mister, where does the petrol go?" What do they teach kids in school these days??? Check out the website, Sherwood Forest Railway plug, plug, plug.....


andysleigh	25 Sep 2009, 09:53 PM Post #10
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	Thanks for posting that link david Now Does anybody know of any drawings for one of these slate wagon- http://www.flickr.com/photos/25275697@N07/3478147542/sizes/o/ Edited by andysleigh, 25 Sep 2009, 10:06 PM.



romulus	25 Sep 2009, 10:17 PM Post #11
Ticket Collector Posts: 59 Group: Member Member #704 Joined: April 30, 2008	Andy, Roger Marsh and patterns for curly spoked wheels many years ago. These were used as driving trucks for the earlier Romulus. They are now in the possession of Reeves and definitely listed in the old 23rd edition. Suggest you try their web site. But as I said the Marsh design for the steel framed wagons was superb and I have driven a number of Romulus's from them. John



andysleigh	25 Sep 2009, 11:15 PM Post #12
Cleaner Posts: 196 Group: Member Member #377 Joined: December 14, 2007	thanks for the tip John. Unfortunately the steel framed one isnt the one i want to make. I want to make the wooden one, http://www.flickr.com/photos/25275697@N07/3478147542/ The bad thing is the correc axle boxes arent available to buy (as far as i know). I quite like the wood work side of it, being a carpenter in training. Edited by andysleigh, 25 Sep 2009, 11:26 PM.



Johnt5293	26 Sep 2009, 08:13 AM Post #13
Cleaner Posts: 156 Group: Member Member #50 Joined: October 18, 2006	andysleigh 23 Sep 2009, 11:42 PM from what i have heard, its not very machineable. somebody told me about someone who got some frames laser cut, and the holes were a bit to small , to he used a carbide tipped reamer and it blunted it. People often think that crabide tipped drilss/reamers will cut anything. This isn't always the case, especially if there is not a great deal of material to be removed. To cut well, and accurate they often need to be supported otherwise the carbide can chip away. For example, i machined a valve from a material called 'Super Duplex' which is a form of stainless steel. The holes were 2 1/2" diameter, and there were 16 of them in a flange 3" thick. A HSS drill cut fine, but required a decent size pilot hole to follow, otherwise the material worked hardened, and you couldn't touch it. Also, the drill needed re-grinding after each hole, so it became a rather time consuming operation. A rep supplied us with a 2 1/2" tip for a indexable carbide drill we had aquired in a job lot at auction. His instructions were "Centre drill the hole to stop the drill wondering off, and then just go straight through with the carbide drill". Quite a scarey thing to do first time, but it worked. It knocked around 5 hours of the time it took to drill the flange with the HSS drills... Edited by Johnt5293, 26 Sep 2009, 08:23 AM.
	John Tasker http://www.freewebs.com/railwayprojects/index.htm


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