Bogie construction

[JimmyB]

If you build a new truck could I have the old one to see if I can beat the challenge?

Not sure what the challenge is!!!!!!!!!!!

My question was around, and the feasibility of:
The plan is to make the bogie top frame from plastikard, then using the original side frames, modify one to have larger axles boxes, and then cast new side frames in polyurethane 2-part resin, the plan to then have the axles supported in (bushed) axle boxes.

 

[maxi-model]

One thing I have found is that quick cure resin parts bond very well with most Cyanoacrylate adhesives. Styrene to resin, using Cyanacrylate or styrene to styrene, using a suitable solvent, with mostly butt jointing is not so strong. Forget epoxy adhesives, apart from everything else, the bonds will fail over time Yes, when styrene to styrene, with a large surface area of contact is available, will work. But the architecture of a bogie, even with bracing, will not really provide you with the integrity you need when you build as a composite of materials as you propose. It might work with large (5 -10 mm ) square section styrene side beams bonding the top and sides. Better to opt for a resin to resin bond for strength and integrity, rather than a composite. Max

 

[DafyddElvy]

Not sure what the challenge is!!!!!!!!!!!

My question was around, and the feasibility of:
The plan is to make the bogie top frame from plastikard, then using the original side frames, modify one to have larger axles boxes, and then cast new side frames in polyurethane 2-part resin, the plan to then have the axles supported in (bushed) axle boxes.

The challenge is to use the existing bogie and make something which achieves the better running qualities that you are seeking.

I am never likely to buy a cable car kit but do believe I can come up with something cost effective which achieves the running qualities required.

 

[JimmyB]

The challenge is to use the existing bogie and make something which achieves the better running qualities that you are seeking.

I am never likely to buy a cable car kit but do believe I can come up with something cost effective which achieves the running qualities required.

I am sorry, but it sounds like an insult, you can make it work, where I can’t. I can bodge it as well as the next person, but I WANT to rebuild the bogie as I have gone as far as I want to with the one I have.

 

[DafyddElvy]

I am sorry, but it sounds like an insult, you can make it work, where I can’t. I can bodge it as well as the next person, but I WANT to rebuild the bogie as I have gone as far as I want to with the one I have.

Sorry, no insult intended I assure you, and I would never try to presume that I was any better than anyone else.
I simply like challenges and I'd like to see if I could make something that would meet your objective. I once built a powered truck for a 4mm scale Hong Kong tram which left the lower deck clear of any motor or gears.

Apologies.

 

[dunnyrail]

Jimmy, not sure if you remember this but I did a set of bogie side frames for my railcar. Though they were only cosmetic, you may find a bit of inspiration. Look from Post 6, the bogies could have been made functional with side frame detail from plasticard, cast or 3D printed stuck on. But in this case I used a ready made power bogie.

Battery Railcar using Peter Spoerer (Fosworks) kit

I inherited a couple of Railcars when Andy Rush died in 2013, one a Diesel one that was Track Powered with a Massoth Sound Chip in it. Phots of this machine have appeared in the Forum before. The second was the Prototype of what was to be a short run of Overhead Electric Railcars. This was...

www.gscalecentral.net

 

[JimmyB]

Jimmy, not sure if you remember this but I did a set of bogie side frames for my railcar. Though they were only cosmetic, you may find a bit of inspiration. Look from Post 6, the bogies could have been made functional with side frame detail from plasticard, cast or 3D printed stuck on. But in this case I used a ready made power bogie.

Battery Railcar using Peter Spoerer (Fosworks) kit

I inherited a couple of Railcars when Andy Rush died in 2013, one a Diesel one that was Track Powered with a Massoth Sound Chip in it. Phots of this machine have appeared in the Forum before. The second was the Prototype of what was to be a short run of Overhead Electric Railcars. This was...

www.gscalecentral.net

Jon, before I joined the forum (just), but a good read. I have now bought some brass sheet and frame spacers, and just awaiting the arrival of the hornblock, and I should be able to make up the dummy but working bogie, I have the Delrin gears now for the drive, just awaiting a new gearbox.

In the mean time I am trying to make some cosmetic bogie outer frames, my first attempt was a bit of a failure, but your thread has given me inspiration and a different consideration. Of course I will let you know how it goes.

 

[dunnyrail]

Jon, before I joined the forum (just), but a good read. I have now bought some brass sheet and frame spacers, and just awaiting the arrival of the hornblock, and I should be able to make up the dummy but working bogie, I have the Delrin gears now for the drive, just awaiting a new gearbox.

In the mean time I am trying to make some cosmetic bogie outer frames, my first attempt was a bit of a failure, but your thread has given me inspiration and a different consideration. Of course I will let you know how it goes.

Glad to be of help. Hope all goes well. EDIT OH Jimmy just remembered this one as well. See from post 17. This was my PM conversion that also used a cosmetic but possible functioning bogie.

Harz Type Battery Railcar with some Playmobil abuse to create a New Battery Operated almost like.

The Harz Lines have had a few Railcars in their time. The first being the little 4 Wheeler T1 built by Dassau as long ago as 1933 and the subject of a Trainline 45 Model that some day I may get hold of. Sundry Bogie Railcars have also been dabbled with over the years and these 1950’s built...

www.gscalecentral.net

 

[JimmyB]

Glad to be of help. Hope all goes well. EDIT OH Jimmy just remembered this one as well. See from post 17. This was my PM conversion that also used a cosmetic but possible functioning bogie.

Harz Type Battery Railcar with some Playmobil abuse to create a New Battery Operated almost like.

The Harz Lines have had a few Railcars in their time. The first being the little 4 Wheeler T1 built by Dassau as long ago as 1933 and the subject of a Trainline 45 Model that some day I may get hold of. Sundry Bogie Railcars have also been dabbled with over the years and these 1950’s built...

www.gscalecentral.net

This thread I do remember well, and i enjoyed reading the first time. My issue is I do not have a lathe or brazing equipment, though both of which I can over come one way or another.

 

[dunnyrail]

This thread I do remember well, and i enjoyed reading the first time. My issue is I do not have a lathe or brazing equipment, though both of which I can over come one way or another.

Just looked at where I used the lathe on this one. I reckon you could fabricate the (cosmetic) axle bearings out of plastic tube with circles punched out in a paper hole punch. Where I have done silver soldering, with care and different heat grades of soft solder you could get away without. Really looking forward to see how your bogies turn out with the modest methods that you will use. With care I know you will succeed.