Entry posted by AJ427
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Well, my i-materialise 3d-printed Ivatt N1 prototype arrived much sooner than I anticipated and so with some trepidation I opened the box and removed the rather extensive packaging. Phew! It's in one piece! and Wow! It looks like an N1! where the first thoughts to enter my head.
The model is remarkably sturdy with a slight level of flexibility not dissimilar to a RTR body. The level of detail is quite impressive although a couple of the very small parts are a little vague and fuzzy. I knew I was pushing the limits of the prime grey resolution though so all in all I was quite pleased. Likewise the smooth finish is restricted to just the running plate, top of the boiler, tanks and the cab roof - everywhere else will require some sanding. Even so I am quite impressed with my first attempt. In hindsight it would have been better to have the model printed boiler up and even may be better to create a model with this material as a simple kit to increase the available surfaces for the smooth finish (which is the 'top' of the model).
I decided to do a quick exploratory test fit on an old Mainline N2 chassis with the front cut off and the motor and weight removed. This required some further minor mods; the locating lugs on the chassis back had to be cut off and a slight chamfer scraped from the back edges and some material had to be removed from the area under the bunker where the water pipe is attached to the body. I appear to have put my screw mounting hole in the wrong place, slightly too far forward, but no biggie and otherwise it's a good fit.
Next step - fill and clean the body up and fit it to the Hornby N2 chassis.
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