Thread: Stephenson's Rocket

Looks like you had a great time and it is always nice to see in person other like minded peoples work. The trains look great and seem to travel well

Hi All,

Back onto the loco today.

I have turned up the front drive shaft and the rear trailing wheel shaft.

On the main drive shaft there is an eccentric motion drive. I have started on this using MDF and pine. There is a brake band assembly that goes around the centre of the eccentric drive - getting my mind around how to make this. The drive is just positioned on the correct diameter shaft in my metal lathe so I can roughly assemble it and get my dimensions for the brake band assembly.

Regards

Keith

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Even at this early stage - I think this locomotive is the most interesting one I have attempted to build. The mechanical components are challenging but the photos from Fletty are really helpful in understanding how the loco operates.

I have assembled the eccentric motion dive. I used a cable tie as my tension band. The ends of the band were made from aluminium. The eccentrics were made from pine and the side plates are MDF. The assembly was glued together using PVA glue on a 25mm shaft (same size as the axle)
The 90 degree brackets in from of the drive wheel leaf springs are the holding brackets for the cross shaft that holds the engaging mechanism into the eccentric motion assembly that changes the direction of the locomotive. This will be controlled by a foot pedal on the main footplate.

Regards

Keith

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i think the case of an interesting build is helped by the fact that so many components of the original are exposed which make it necessary to model them which if I can add you are doing admirably Keith as always.
I am still playing at turning as I stated in another post, but am looking at a set of plans in the evening trying to make a list of most of the wood thicknesses and widths so as to start machining enough for the complete build

Thanks Derek,

Agree that the more exposed components with little guarding add to the enjoyment and intrigue of this locomotive. Makes it a long, slow build however.

Good on you for getting all your materials ready in advance. It should allow you to really get stuck into the build - which I am really looking forward to seeing.

Regards

Keith

Good luck that looks like a lot of work but think of the joy when it is done or in the doing.

Cheers, Kerry

It's really slow work on the Rocket - lots of components to make up for each assembly.

Been working on the reversing mechanism that slots into the eccentric motion assembly. Not a lot more that I can do on this until I start work on the boiler and footplate assemblies. Then I can get my measurements correct for the linkage shafts.

The reversing shaft was turned out of aluminium and needed to thread one end (4mm) so I could fasten the linkage plate to the end of the shaft. The shaft support bearings were made from pine.

Regards

Keith

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Hi All,

Still working on the underframe and the eccentric motion drive on the "Rocket".

Had to make up a countershaft which is then connected to the eccentric crank arms via small linkages. The bearings were made from pine as were the crank arms. The clevis joints were cut out roughly on the band saw and then finished by sanding with 80 and 120 grit.

Next step will probably be making up the boiler support brackets on the sub frame.

Regards

Keith

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Really been missing your updates.

Originally Posted by htl

Really been missing your updates.

Thanks.

It takes a long time to get the individual components made. I am still at it daily BUT it's very slow.

The beauty about taking a long time on the different parts is that you don't have to worry about what to build next

Regards

Keith

Keith, I've been reading and just getting so immersed in Repliconics great posts for hours and hours.
Just one great post after the other and then come out of his model building world and have trouble slowing back down and having to wait for the installments of your great build.


It's kinda like watching Netflix where you can watch a whole season of something in a day or two, it really grabs hold of you and then to have to watch something with commercial and then wait a week for the next part. LOL
I hope you see where I'm at here.

Tell me I'm the only one and I may need some help.

Great job Keith just catching up been busy(as you can see by my reply to HTL below) and with cardiology appointments I have to stop working on shed things

Originally Posted by htl

Tell me I'm the only one and I may need some help.

I don't have that problem as I am so engrossed in converting a little pile of logs for turning so far I have reached 73 blanks and more to do

Originally Posted by htl

Keith, I've been reading and just getting so immersed in Repliconics great posts for hours and hours.

Tell me I'm the only one and I may need some help.

Nah, I cant comment on whether you, or we, “need some help” but I can definitely confirm that you are not alone!
I once took on the onerous task of selecting ONLY 20 or so pictures of Trevor’s Brough build to write a magazine article for the Brough Owners Group magazine, and that was tough. Every picture I chose was soon superseded by another and another until I actually had to resort to printing a thumbnail sheet of 100 potential illustrations and then selecting each fifth picture! I had only just finished the second article when he left us. Which reminds me, I should drag them out and send them to DaveTTC for his gtg library?
fletty

Originally Posted by Dalboy

Great job Keith just catching up been busy(as you can see by my reply to HTL below) and with cardiology appointments I have to stop working on shed things



I don't have that problem as I am so engrossed in converting a little pile of logs for turning so far I have reached 73 blanks and more to do

I hope you are OK Derek

Regards

Keith