Building a power bogie

Moonraker

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I am planning to build a 1:22.5 G scale Brill Model 55 railcar such as ran in the USA and in South Australia. The bogies have 37mm diameter wheels and the axles are spaced 90mm apart.

First question is, does anyone know of any supplier who does wheels this big?

I plan to fabricate both bogies using 3D printing. The non-powered one is easy in that I just have to fit the wheels. However the powered bogie is more difficult. Does anyone know of any motor/gearbox/wheels units around which I can build the powered bogie. The Aristocraft and USA Trains power bogies have wheels which are much too small.

Any ideas please?

Regards
Peter Lucas
 
The Piko motor block for the BR218 is a close fit, having 37mm diameter wheels ( as far as I can determine through the plastic wrapping), but the wheelbase is slightly too long, at 95mm.
 
fridge said:
The Piko motor block for the BR218 is a close fit, having 37mm diameter wheels ( as far as I can determine through the plastic wrapping), but the wheelbase is slightly too long, at 95mm.

Beat me to it. I measure 38mm wheels at 98.3mm spacing. Looks like this :
http://www.g-bits.co.uk/datasheet/161-P105BR218PowerTruckDatasheet.pdf
Rebuilding to 90mm wheelbase is probably possible but would be a lot of work.

Alternatively you could look at stretching the rigid part of a USAt 3 axle block. From memory the PA block has 37mm is wheel at about 80mm spacing. Again some serious work involved, but adding length is probably more sure of success than taking it out.

Jonathan
g-bits
 
Excellent. Piko it is. I am not a strict rivet counter so I won't bother about the extra 8mm wheelbase.

Many thanks
Peter
 
I'd love to see pics of the 3D printing part of your project - been some debate on here about how successful that is/isn't. I don't yet have access to one, and I guess the technology is moving on so far, so fast, I'm not inclined to buy one yet....
 
Moonraker said:
Excellent. Piko it is. I am not a strict rivet counter so I won't bother about the extra 8mm wheelbase.

Many thanks
Peter

When I was at Glendale Jcn last week he had at least one Piko 218 Bogie in stock. At around £68 if memory serves me well.
JonD
 
From this forum I have gained the impression that, with some Piko diesels, the wheels are of much improved quality on later compared with earlier examples.
Does this apply to the 218s?
 
Yes, newer 218's also have the 'new style' wheels.

You should go for the Art.No. 36105 BR 218 motorblock, this one has the chrome wheels and ball bearing axles. The old motorblock is 36101, so avoid this one.
 
chris beckett said:
I'd love to see pics of the 3D printing part of your project - been some debate on here about how successful that is/isn't. I don't yet have access to one, and I guess the technology is moving on so far, so fast, I'm not inclined to buy one yet....

from what i understand (which may be limited) buying it is the easy part. Its becoming competent with 3D CAD software that might be more of a problem.
 
Chris,

You don`t have to buy a 3D printer. There is an on-line group called 3D Hubs who will print your designs, in your area, for a sensible fee. They are just a co-op of home 3D printer owners, people just like you and me, who make a buck by printing for other people. If you go onto the 3DHUBS web site you can search your area to see the options. This works well for G scale and for doing test runs in the smaller scales. For final runs in the smaller scales (HO/OO) you need to spend thirty pounds or so by sending the job to Shapeways.

Stockers,

I have use a UP2 printer for over two years and have used the free Google SketchUp all that time. It is simple, intuitive and works for me. Yes, 3D design does take a lot of time.....but, for me, it`s a lot more fun than sitting watching TV.

I have attached a photo of one of the bogie sides which was printed on a UP2.

Regards
Peter Lucas
MyLocoSound

 

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fridge said:
£43.16 at Top slots and Trains. Claimed to be "in stock"

Currently showing as "on backorder", so maybe somebody nabbed it after reading this thread! BUT beware, it's the old 36101 type with the old wheels anyway, as per Willem's post above..... ???

Jon.
 
3DHUB -

HEY Thanks - found a set-up about 10km away. No immediate requirement, but could well be useful in the future. I'm interested in seeing how this technology develops....thanks again
 
Deutsche Reichsbahn said:
Yes, newer 218's also have the 'new style' wheels.

You should go for the Art.No. 36105 BR 218 motorblock, this one has the chrome wheels and ball bearing axles. The old motorblock is 36101, so avoid this one.

At last a number for the correct blocks. Have been trying to get this information for an age. Now do you have the same info for the New Blocks for the CoCo Harz Kamel please?
JonD
 
dunnyrail said:
At last a number for the correct blocks. Have been trying to get this information for an age. Now do you have the same info for the New Blocks for the CoCo Harz Kamel please?
JonD
The Kamel motorblocks are not available as a 'regular' product like the BR 218, BR 80 etc. blocks. For reasons unkown, you can only order the Kamel blocks as a 'spare part' directly from PIKO.

The first Kamel (37540 first gen with grey chassis) had the old style axles -> http://gscalenews.com/pdf/piko-g/37540p.pdf --> Old style motorblock is listed as ET37540-35
The later Kamel (37541 with black chassis) had the newer style axles -> http://gscalenews.com/pdf/piko-g/37541p.pdf --> New style motorblock is listed as ET37541-35
The 2015 Kamel (37542) is essentially the grey 37540 with new style axles -> Not available yet

So you should order 2 ET37541-35 blocks at € 54,65 each (http://www.piko-shop.de/index.php?vw_type=artikel&vw_id=15224)
 
DR many thanks for that decided to give the Tam Valley Battery setup a go. But will keep this option in mind as I may Battery my Hacked 218 and go fir the new bogie on my Kamel. At least I know what to order now.
JonD
 
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