A Letterville Step By Step
Glass Piece
By
Dave Smith

 

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Hand sketched very roughly and the penned over with black ink. The bird illustration was changed as the client preferred horses.
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workings out for some of the 6 tones of acid etching. The illustration was hand vectored ready for cutting by plotter.
there are a total of 4 panels x2 at 27inches by 22inches x1 at 4ft x 3ft and a smaller panel at 20inches by 17inches.
This is why I vectored the design to speed things up and avoid all the hand cutting plus the computer can cut alott smaller detail and much quicker than me.
I made a drawing showing me where to start my brilliant cutting ,once the cutting was finished and polished I matched up the areas for acid etching the first white tone

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This shows the resist covering the glass cutting and exposing the areas for white acid. a combination of hand cutting and computer was used as it was impossible for
exact positioning of the resist plus it is tradition here to give the brilliant cutting a white acid etched line around the cuts.
The tone was toped off for 8 minutes ready for the first acid tone. A top off is when the acid is cut back before any work is done. If I silver straight onto the first tone of pure white it would look like dirty sandblasting and not have the correct shade for a silvered panel .A top off effect would not be needed for glass which goes into pub windows which lets light through.
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phase 2

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acid etched for 30 minutes 2 acid to 3 water strong mix but enough to get instant depth to the work.
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first layers of gold water gilded. scratched areas and shaded using different tools
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23 crt gold water gilded with the back scraped over using a Stanley blade which knocks off the highest points of gold leaving the etched gold areas aloan and makes the clear lines.
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more shades of gold added to give highlights in some areas and to make it look old

First of all Happy 
areas recovered and parts removed for acid mica texture.

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now I have jumped forward with this shot.The panel is covered with clear vinyl
any areas I choose to etch now would need to be hand cut. On the border you see mica again with a fine small stipple to it.
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2 shades
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3 shades
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Hand drawn horses and black penned for light exposure for burning to screen
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printed 3 times with ashaltum resist paint.The centre section circle was acid toned for a further 15 minutes to cut back the white tone even further before the print was made.
a similar technique to orbital sanding with 3 microns powder prior to acid etching factory buildings.
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Dave Smith
TORQUAY, ENGLAND

e-mail Dave

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