Bogies

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FWLR
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Bogies

Post by FWLR » Sat Jul 06, 2019 10:28 am

I need some advice please on some bogies. I have a railbus that will not run at all on my newly laid extension track, it wouldn't run on the old track either.... :lol: The trouble is I think, the bogies are too far forward and the whole body rolls all the time. I am thinking that the bogie needs to be moved back a fair bit, but the trouble is there is a battery box fixed under the body so I can only move it back to a certain point.
What I am really asking is, are there any bogies that have single axles or will I need to make my own. If I need to make my own what is the easiest why of doing it please.


Couple of photos of the wheels.
DSCN4057.JPG
DSCN4058.JPG
DSCN4059.JPG

This is a little video of the extension. The tram is a little bit noisy, but hopefully she will get quieter with some dry grease on the drive.... :roll: She is also pulling the coach that wouldn't run on the old track..

Rod

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Re: Bogies

Post by GTB » Sat Jul 06, 2019 12:23 pm

FWLR wrote: ↑
Sat Jul 06, 2019 10:28 am
I need some advice please on some bogies.
Loosen the bogie mounting screw so the bogie can tilt fore and aft and rock side to side, as well as rotate freely.

Since the rear driving axle is presumably fixed in position, that will give you 3 point suspension and make the model less sensitive to the track. You may have to experiment a bit to work out how much freedom the bogie needs on this track.

Same with bogie coaches (and bogie wagons), one bogie needs side bearers to stop it rocking, but still be free to tilt back and forward. The other one needs to be free to both rock and tilt, again to give a 3 point suspension.

The bogie wheelbase looks short, so unless your tracklaying is really bad, you shouldn't need to fit a bogie with compensated sideframes.

Have fun..... ;)

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Graeme

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Re: Bogies

Post by FWLR » Sat Jul 06, 2019 4:08 pm

Thanks Graeme. Did you look at the tram video, it shows it running with a coach that would not run at all on the old track. It does now, so I think the track is fairly well laid if I say so myself.... :lol: :lol:
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Re: Bogies

Post by GTB » Mon Jul 08, 2019 1:46 pm

FWLR wrote: ↑
Sat Jul 06, 2019 4:08 pm
so I think the track is fairly well laid if I say so myself....
I don't doubt that, but we live in a universe where entropy increases.... The odds are the track will move over time.

Mine is partly built on fill and I'm already seeing slight gradients that weren't there when I built it...... :roll:

Which is why the supports are designed to be easily adjustable.

The coach may be OK now on good track, but it would still be worth sorting it out, so you can run it on other tracks that aren't as well laid as yours.

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Graeme

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Re: Bogies

Post by FWLR » Mon Jul 08, 2019 4:42 pm

I do see what you are saying Graeme and your are correct in that track will over time move, I am hoping that mine will not, he says with some anticipation...... :lol: :lol: :lol:
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Re: Bogies

Post by MRail » Tue Jul 09, 2019 7:32 am

Rod,
This looks like a Brandbright railcar?
If so, I had one for a while, and it displayed all the troubles you mention.
The problem is, it's simply too long for our typically sharp curves.

I moved the battery box further back, and then refitted the bogie pivot under the front bulkhead.
[attachment=0]MR070707-14.jpg[/attachment]

It still wasn't enough, so it was sold on.
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MR070707-14.jpg
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Re: Bogies

Post by FWLR » Wed Jul 10, 2019 9:02 am

MRail wrote: ↑
Tue Jul 09, 2019 7:32 am
Rod,
This looks like a Brandbright railcar?
If so, I had one for a while, and it displayed all the troubles you mention.
The problem is, it's simply too long for our typically sharp curves.

I moved the battery box further back, and then refitted the bogie pivot under the front bulkhead.
MR070707-14.jpg

It still wasn't enough, so it was sold on.
Mmmmm you are spot on Rob, it is the very same Railcar....The quandary is, do I attempt to try and do the same, with perhaps moving the bogies even further back, or do I sale it on like you did, and how much should I sale it for....decisions, decisions.....Is it worth the aggro.....

PS Rob, did yours have larger wheels on the drive like mine and would that make it do what it does ?
Rod

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Re: Bogies

Post by MRail » Wed Jul 10, 2019 4:29 pm

Yes, Rod,
Pretty much the same. Of course, it was some years back.
Bought it in 2003 & finally sold it about 2010.
I seem to remember it was reasonably stable, just ground to a halt on my curves.

I felt it would benefit from a 4w power bogie at the rear, but couldn't locate anything suitable.
Just wondering perhaps a Lima 0 gauge bogie, with false side frames might do the trick.
They occasionally come up on that well known auction site.
Rob G
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Re: Bogies

Post by FWLR » Thu Jul 11, 2019 6:33 am

Thanks Rob... :thumbright:

I will stick with it then and see how it goes, I am one for not giving up on something and if I can get it to work well all well and good, but if not..... :roll: :roll:
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Re: Bogies

Post by FWLR » Thu Jul 11, 2019 7:06 am

Rod

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Re: Bogies

Post by Peter Butler » Thu Jul 11, 2019 3:46 pm

Hi Rod, I have just checked out that link to bogies and those are not the ones you need. What is suggested by Rob is an '0' gauge power bogie (4 wheel drive with motor unit attached) made by LIMA. These are now no longer made and highly sought after, so can be expensive. You might be lucky enough to find a complete diesel loco for sale which uses these but you will have to be prepared to spend some serious cash.
If you can find one which doesn't work electrically but the gears are still good, you can get replacement motors which are easy to fit, and alter to battery power instead of track power.
The best things in life are free.... so why am I doing this?

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Re: Bogies

Post by MRail » Fri Jul 12, 2019 9:02 am

Sorry, a bit slow chipping in, been busy in the works.
Yes, Peter, that's correct.
I'm wondering now if something from IP Eng. may be adaptable.
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Re: Bogies

Post by FWLR » Sat Jul 13, 2019 8:56 am

What about these ?

https://www.ipenginnering.com/product-p ... nce-bogies.

Or something similar...
Rod

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Re: Bogies

Post by MRail » Sat Jul 13, 2019 9:20 am

Sorry Rod, No, it needs a motorised bogie.

This sort of thing MAY be adaptable:-

[attachment=0]IP Bogie.jpg[/attachment]
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Re: Bogies

Post by FWLR » Sat Jul 13, 2019 9:56 am

Can you please explain to this uneducated mind..... :scratch: :lol: :lol:

I don't understand why it's needs to be a motorised bogie. Have I to replace the drive at the rear, or is it to put on the front bogies with it driven by the same batteries that are powering the rear wheels.....It's stupid I know..... :roll: :roll:
Rod

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