glue-itcom
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- Joined
- Apr 10, 2013
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Hi Pete, I got to 1/20th scale by accident, the size of the engine was determined by me wanting to be able to print the elevation of the engine on a sheet of A4 paper. I wanted an engine that would on the mantlepiece. Heat source is going to be methylated spirits, I've been making some simple calculations around this: steam and methylated spirit consumption. The boiler has 7 flue pipes, but will be a simple cylinder and so some heating underneath of the main boiler barrel. I have the basic design for the firebox, this is next on my list to do.Nice work Nigel. Did you pick the scale so you could machine the largest parts (rear wheels) on a small lathe?
What is your plan for firing / heat source? I am guessing solid fuel will be a little fiddly at this scale.
Hi Graham, yes, ferric chloride and etched for around 2 hours (used wires to hang it face down in the ferric chloride). Everybody says clean and must admit that this is key, have added some notes to my page on etching brass. Be prepared to create a few parts as it does take some goes to get everything sorted. Best regards, NigelThat looks excellent, how long did it take to etch and did you use the Frerric chloride?
Graham