Working sprung axleboxes...
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Working sprung axleboxes...
The below item is a Peco/Parkside RCH 5 plank mineral wagon with various additions to it.
It's sprung with Bill Bedford w-irons which, in a fit of silliness, have had the Exactoscale axleboxes attached to the bearings in the spring carriers.
As a result, the axleboxes actually go up and down successfully - sheer madness
There are times my illness has some "unique" benefits...
It's sprung with Bill Bedford w-irons which, in a fit of silliness, have had the Exactoscale axleboxes attached to the bearings in the spring carriers.
As a result, the axleboxes actually go up and down successfully - sheer madness
There are times my illness has some "unique" benefits...
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Unthinking respect for authority is the greatest
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
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Re: Working sprung axleboxes...
iak wrote: the axleboxes actually go up and down successfully
Clearly the next step is to make the springs move!
Terry Bendall
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Re: Working sprung axleboxes...
Who remembers the Peco wagons with sprung suspension? Smooth runners but awful bearings!
I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date.
As for the remaining challenges, I suspect it is correctly working door catches. (Working brakes and opening doors have been done.)
I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date.
As for the remaining challenges, I suspect it is correctly working door catches. (Working brakes and opening doors have been done.)
Regards,
Andrew Nummelin
Andrew Nummelin
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Re: Working sprung axleboxes...
andrewnummelin wrote:Who remembers the Peco wagons with sprung suspension? Smooth runners but awful bearings!
I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date.
They were moulded in nylon if I remember correctly and with a correctly designed mould they should have been able to take pin-point bearings and give a free-running ride.
Nylon isn't adhesive friendly but I wonder if it would be possible to cut the springs free and fix them to both wagon and axle boxes mechanically?
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Re: Working sprung axleboxes...
andrewnummelin wrote:
As for the remaining challenges, I suspect it is correctly working door catches. (Working brakes and opening doors have been done.)
Now there is an idea...
Unthinking respect for authority is the greatest
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
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- Joined: Sun Mar 27, 2011 6:40 pm
Re: Working sprung axleboxes...
As for the remaining challenges, I suspect it is correctly working door catches. (Working brakes and opening doors have been done.)[/quote]
Indeed. I would very much like to make a working cameo of a shipping coal-hoist, but there's not much point unless the wagon doors open at the right moment.
Indeed. I would very much like to make a working cameo of a shipping coal-hoist, but there's not much point unless the wagon doors open at the right moment.
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Re: Working sprung axleboxes...
Guy Rixon wrote:Indeed. I would very much like to make a working cameo of a shipping coal-hoist, but there's not much point unless the wagon doors open at the right moment.
Burntisland does it!
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Re: Working sprung axleboxes...
Paul Townsend wrote:Guy Rixon wrote:Indeed. I would very much like to make a working cameo of a shipping coal-hoist, but there's not much point unless the wagon doors open at the right moment.
Burntisland does it!
Bobbins, I'd forgotten about that.
And I've talked to one of their guys about it
Unthinking respect for authority is the greatest
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
enemy of truth....
Albert Einstein
Perfection is impossible.
But I may choose to serve perfection....
Robert Fripp
https://www.facebook.com/groups/PadgateWorks/
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Re: Working sprung axleboxes...
andrewnummelin wrote:Who remembers the Peco wagons with sprung suspension? Smooth runners but awful bearings!
I’ve still got one (The Royal Wedding one - which I weathered!) and I put pin point bearings in it and it ran very well. I must dig it out sometime and tidy it up. Not prototypical but helpful just to increase the number of vehicles in a train if I don’t look too closely!
Philip
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Re: Working sprung axleboxes...
Peco wonderful wagons. Sprung buffers too. I have a couple of tanks but found the springing too rigid to actually work unfortunately.
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Re: Working sprung axleboxes...
I’ve just found my Wonderful Wagon and it is a bit crude in places and old age has got to the buffer springing, but that’s not a problem since I don’t spring wagon buffers every time. I sorted out the wheels as the tyres had fallen off and glued some bits back on, difficult as much of it is nylon.
But it runs really nicely and the (delicately moulded) springs seem to work ok. Very nice mouldings and metal W irons that the axleboxes run in. I see I added a bit more weight, up from the supplied 47 grams to 62 grams (not calculated, just stuck underneath).
I’ll post a picture when I’ve cleaned up the paintwork.
Philip
But it runs really nicely and the (delicately moulded) springs seem to work ok. Very nice mouldings and metal W irons that the axleboxes run in. I see I added a bit more weight, up from the supplied 47 grams to 62 grams (not calculated, just stuck underneath).
I’ll post a picture when I’ve cleaned up the paintwork.
Philip
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Re: Working sprung axleboxes...
As promised, a picture of the Peco Wonderful Wagon from 1981. I wouldn’t go in for these commemorative things these days, but that was then and it seemed an idea at the time. I shouldn’t have weathered it though!
I found I had just melted some pin point bearings into the axleboxes. The springs were quite delicate mouldings and are slightly compressed when the wagon is put on the track, and the running is very smooth. I have to say though that it’s not really any steadier than many of my rigid wagons fitted with dead true wheels, but does sound a bit quieter. The real pain is that the whole underframe is moulded from nylon, apart from the steel W irons, which makes any modification difficult as you can’t file it cleanly. The body with its embossed card overlay shows its age, too, and the bolt heads have become a bit flattened. I am not inclined to change it, just content to have it as a memento of another time.
I am slowly working my way through a collection of old wagons, reworking them where it seems worth it. Possibly not up to modern standards, but gives me a bigger fleet more quickly than starting again, so long as I accept their limitations.
One final thing is that I remember seeing in an old magazine advert somewhere that sprung axleboxes were available fifty or more years ago. I thought it was SRB but they made soldering irons so maybe it was something similar. Anyone remember?
Philip
I found I had just melted some pin point bearings into the axleboxes. The springs were quite delicate mouldings and are slightly compressed when the wagon is put on the track, and the running is very smooth. I have to say though that it’s not really any steadier than many of my rigid wagons fitted with dead true wheels, but does sound a bit quieter. The real pain is that the whole underframe is moulded from nylon, apart from the steel W irons, which makes any modification difficult as you can’t file it cleanly. The body with its embossed card overlay shows its age, too, and the bolt heads have become a bit flattened. I am not inclined to change it, just content to have it as a memento of another time.
I am slowly working my way through a collection of old wagons, reworking them where it seems worth it. Possibly not up to modern standards, but gives me a bigger fleet more quickly than starting again, so long as I accept their limitations.
One final thing is that I remember seeing in an old magazine advert somewhere that sprung axleboxes were available fifty or more years ago. I thought it was SRB but they made soldering irons so maybe it was something similar. Anyone remember?
Philip
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Re: Working sprung axleboxes...
Nice!
I think there was an 'S&B' as well, Phil - would that be it; I will check out the old mag stash later!
Steve
I think there was an 'S&B' as well, Phil - would that be it; I will check out the old mag stash later!
Steve
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Re: Working sprung axleboxes...
essdee wrote:Nice!
I think there was an 'S&B' as well, Phil - would that be it; I will check out the old mag stash later!
Yes S&B, based at Norwood Junction in South London IIRC. They did point levers and, I think, chairs too.
I suspect that it was their chairs that were used on the turntable on our Bembridge layout fifty years ago - probably the first ever bit of chaired track on a P4 layout.
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Re: Working sprung axleboxes...
I knew someone would know!
Philip
Philip
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Re: Working sprung axleboxes...
iak wrote:sheer madness
My kind of insanity!
andrewnummelin wrote:I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date.
There are a number of 'flexible' resins for 3D printing I was pointed at by Wayne Kinney, 'FLEX' from monocure 3D, 'Tenacious' from Siraya Tech and 'UV LCD Flexible' from PhotoCentric3D. As I had an idea to try 3D printing some working Flexicoil for Class 86 and 87s, and potentially for working coil sprung equalizing beam bogies.
There is at least one other person I know of, who thinks working leaf spring suspension on Class 40/44/45/46 bogies is a brilliant idea that needs to be done.
Regards
Matt Rogers
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Re: Working sprung axleboxes...
ClikC wrote:...There is at least one other person I know of, who thinks working leaf spring suspension on Class 40/44/45/46 bogies is a brilliant idea that needs to be done.
Did someone call?
That would be an ecumenical matter.
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Re: Working sprung axleboxes...
andrewnummelin wrote:
There is at least one other person I know of, who thinks working leaf spring suspension on Class 40/44/45/46 bogies is a brilliant idea that needs to be done.
Regards
They didn't work that well on the real thing and had to be supplemented by coil springs on the hangers. Derailments on rough track were quite common.
Dave.
Re: Working sprung axleboxes...
ClikC wrote:iak wrote:sheer madness
My kind of insanity!andrewnummelin wrote:I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date.
There are a number of 'flexible' resins for 3D printing I was pointed at by Wayne Kinney, 'FLEX' from monocure 3D, 'Tenacious' from Siraya Tech and 'UV LCD Flexible' from PhotoCentric3D. As I had an idea to try 3D printing some working Flexicoil for Class 86 and 87s, and potentially for working coil sprung equalizing beam bogies.
But all resins, especially 'flexible' ones will take on a 'set', ie they will change shape to accommodate a constant load.
I've had one that bent through 90º under its own weight when place over the edge of a shelf.
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Re: Working sprung axleboxes...
You could always use one of these instead -
A lot simpler to fit Note the sprung bogie too.
I thought I might have an S&B advert in my 'archive' that showed the sprung axleboxes but can't find it. It might be in some editorial pages somewhere but I'm sure they can be seen on the web if S&B is Googled.
Just don't mispell it as S&M....................................
A lot simpler to fit Note the sprung bogie too.
I thought I might have an S&B advert in my 'archive' that showed the sprung axleboxes but can't find it. It might be in some editorial pages somewhere but I'm sure they can be seen on the web if S&B is Googled.
Just don't mispell it as S&M....................................
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