Success!

Well, mostly. See for yourself:

The paper must have been slightly squint further down as the triangular top pieces haven’t worked at all. I did wonder about trying to do so much in one go, so in future I think I’ll stick to smaller pieces (e.g. divide the above into three separate etches). This was also a much thicker plate than before. It is also harder to get consistent etch times with larger plates.

Anyway, the important two side plates and bottom plate are fine.

I recommend enamel paint for touching up pieces of the etch that failed to transfer; it seems quite resistant to Ferric Chloride, and is easily removed with wire wool.

Oh, here’s a pic of the plates sellotaped onto the prototype:

Just got to make the leather framework to hold it all together now!

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