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Old 08-01-18, 12:12 PM   #271
listerdiesel
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Looks pretty impressive!

Peter
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Old 08-01-18, 02:38 PM   #272
rourkek4
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I haven't had them cast yet, but i tried a similar approach a few months back using some of the resin based printers in work, surface finish looks good, i reckon they should be fine. These were based off a broken plate taken from the engine in one instance, and the rest from rough photographs.

Kevin
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Old 08-01-18, 03:51 PM   #273
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They're very good Kev. Based on my past experience, they will cast just fine.

MP
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Old Yesterday, 12:14 PM   #274
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Next little bit of progress;



The R&H plate was made by Vintage Brass Plates, and is a lovely job. It will age a little with chemicals and polishing.

The serial number is a resin print, which I have had to pay for - Michael's printer wasn't giving us what we wanted. This will make a lovely pattern for casting from.

MP
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Old Yesterday, 12:28 PM   #275
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Very impressive. Good to know these are available/makeable, as so many get "nicked" by the brass monkeys.
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Old Yesterday, 12:53 PM   #276
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When I saw the R&H plate, it reminded me of the PCB's I used to make, I wonder if they use a similar etching process to produce them?.

With some careful painting you could use the resin printed plate, that would upset the brass monkey's if they came calling

Stuart.
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Old Yesterday, 05:50 PM   #277
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I suppose I could paint the print, but obviously I'm not going to. It will be cast, like the originals. Having come this far I'm not cutting corners now.

The brass plate is made by photo etch resist, then etched, presumably with ferric chloride just like PCBs. I have ferric chloride, and I've made plenty of PCBs in the past, but there's no way I could have achieved this sharpness and accuracy.

MP
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