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Rods!

RedgateModels

Entry posted by RedgateModels

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OK, I've finally bit the bullet and started on the coupling rods.

 

The motion set I'm using as a base is a Comet Models LM43 9F set, however all the main rods - coupling, connecting and accentric are too short for the 2-8-2. As most of them are laminated I have to cut the front overlays and backing sections in stategic places and solder them up the right length with suitable filler pieces.

 

Below shows my mock up of the Comet drawing showing what I intend with the coupling rods

 

blogentry-6717-127608698945.jpg

 

The black lines show where cuts need to be made, the red shaded sections are removed and the green bits are the fillers that need to be added. Good job I have a "spare" rod's worth of material each side to provide all these fillers!

 

Anyway, here's front left rod all soldered up on the jig :D

You can see the filler added to the right hand side.

 

blogentry-6717-127606995836.jpg

 

Took an hour to get this far :blink:

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  • RMweb Gold
RedgateModels
  • RMweb Gold

They don't need to be consistent, more match the wheels! When I drilled the chassis halves for the axle bearing holes I pilot drilled right through into a bit of MDF 2mm. I have PVA glued 4 of the crankpins into these holes to make a jig for rod assembly. The rods will be built up on the jig in the correct order hopefully ensuring that they will match the wheel spacing.

 

Note blue arrow on the MDF jig showing which end is "forwards".

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