16mm Scale SM32 Fireless Loco Linke Hoffman

thingiverse

I saw this on a photo on the internet, not sure what scale it was, 1:22.5 I think. I rescaled it up to 16mm and it produced a very sizeable locomotive. I always fancied a fireless loco so this is what I ended up with. It is 32mm only and is not regaugable due to the cylinder positions. Printing is straight forward using support from base or no support for the cab. Infill I used 25% for everything. As mentioned it is a big model due to that huge steam tank which must have run for many hours. There is a lot of room for batteries and RC inside there. Designed for a 280 sized motor using the standard white 3mm x 30 tooth gear with a 2mm ID white worm gear. It is designed to use 3mm axle shafts, 3mm ID brass bushes and M2 bolts using a 2mm ID brass bush for conrods, you will also need a short length of 3mm ID brass bushing to keep the front conrods apart and spaced for the cylinders. Two pieces of 2mm square brass are need for for the slide rods. M2.5 bolts for the motor, very short ones or you will wreck the motor. Ask me how I know, I have 2 motors with damaged windings from doing just that :( A lot of work has gone into this model, please do not modify, adapt or sell it as it is for personal use only. You will need many things like a selection of M2 screws, M3 screws, 3mm axles, 3mm ID brass tube, 2mm ID brass tube, 280 motor (I use MFA ones), the white gears (usually available on an auction site somewhere) and motor screws which are usually M2.5. EDIT : 26/09/21 I have added the correct for for the chassis as the original one supplied was the wrong one, sorry about that. I have also added a support for the slide bar end, not that it needs it if you glue it into the cylinders, but it is there if you fancy using it.