hi all, a few more recent shots of the Na. the last photo shows the motor in the background.

the chassis is free rolling at this point. This design is far neater than the earlier one, assembly is simpler too.

cab

hi all, a few more recent pics. the white parts are cnc machined styrene. the 3rd pic i hadn't trimed the windows.

hi all. just a few more pics. the workshop is a bit full at the moment so have been working on the computer. the na i have changed, it now has a split chassie and solid drivers. both the na and the harman have there parts cut on a cnc mill. parts are either brass or plastic. in hindsight it is far more productive i think to design the locomotive completely. But i guess i can do a better job of it now as from the earlier i have a good idea of what can be machined and what cannot be.

hi all. well above is a machined cylinder set for the na. i made them in two halves which i will solder together. I used a 1mm cutter on the cnc. for scale the outside of the cylinders are 1/8" diametre.

further drawings

hi all, i have started to work on the boiler design. Shown is the overall dimensions. I will add the finer details as i go along.

hi all, have built the improved chassis. It goes together with far less effort. I had an idea to use pc board as the cover underneath as i can use it to attact the pick-ups.
regards

redesign

hi all, well after some thought i decided to re-design. I can say that the current design can lead to a working model. I felt however that the design must be so the kit goes together with ease. i found with the current design it was an effort to build requiring the redoing of solder joints etc.
i figure that as soon as i get one design right i will be able to transfer to simular loco's.
So you can see i have added two internal frames and more rigid cross members, these fit into recesses i cut into the outside frames. the frame will be soldered in once piece. Most importantly the axles are now removable, the bearing surface for the axles are only the top half of the journals alowing them to be removed from underneath. A cover keeps them in place. I figure that the wieght of the loco will keep them in place. This i hope will enable a more accurate assembly of the axles and the valve gear.