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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
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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 20-01-18, 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 20-01-18, 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 20-01-18, 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 20-01-18, 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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Old 17-02-18, 01:02 PM   #278
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The serial number plate is away being cast at present; the foundry are very busy so I'll have to wait. I'll show the result when it's finished.

The only real job left on the IP is to finish the stripping of the crankcase, but with the temperature outside and the ground already waterlogged, this will have to wait. In the mean time, and with the engine shed finished, I can pick away at little jobs.


I've made the studs necessary to get this lot back together, along with a gasket for the cover-plate. A trial fit shows that everything is clear.

The gasket will be needed before too long, as one of the next jobs will be to fill the cylinder/head waterways with the industrial descaler that I have, to remove (hopefully) the rust and the white calcium carbonate crystals that are partially blocking everything.

MP
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Old 17-02-18, 03:48 PM   #279
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That plate does look the part, very nice.

Peter
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Old 17-02-18, 05:40 PM   #280
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Another little job...



That's the new plate (above) aged. I have also produced and aged some screws to mount the plates. I think it doesn't look too obvious.

MP
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