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WMello
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State of the Thing
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Research
In order to make 2 small dials for the clock, testing several methods:
1 - Hand paint/hand engrave.
No way; I can't even hand write my name on a presentable way.
2 - V bit engrave on the CNC.
Hard to make plate level/flat on the Z axis. Engraving too wide/bold.
3 - Diamond drag-engrave.
Engraving too shallow; no depth for paint filling
4 - PNP blue toner transfer resist, acid etching.
No good result so far with clothes iron; waiting for pocket laminator arrival.
5 - Dry film photoresist, acid etching.
No good result so far; too many variables (exposure, developer ...); waiting for pocket laminator.
6 - Paint resist, drag engrave CNC, acid etching.
The best result so far.
7- Water slide transfer...
Here some results for method 6:
Resist candidates:
Drag engraved samples
# 2 didn't survive engraving.
Detail
Acid bath. Ferric chloride 1 hour 15 minutes.
#6 didn't survive acid, #5 did not go well. (the stamped numbers are wrong)
Cleaned of resist layer
Paint filling
Detail for #7
Sand paper cleaned
Detail #1
Detail #7
The winner
The engraver
I will try the Water Transfer method, and again the PNP and Dry Photoresist methods when the pocket laminator arrives.
Wagner
In order to make 2 small dials for the clock, testing several methods:
1 - Hand paint/hand engrave.
No way; I can't even hand write my name on a presentable way.
2 - V bit engrave on the CNC.
Hard to make plate level/flat on the Z axis. Engraving too wide/bold.
3 - Diamond drag-engrave.
Engraving too shallow; no depth for paint filling
4 - PNP blue toner transfer resist, acid etching.
No good result so far with clothes iron; waiting for pocket laminator arrival.
5 - Dry film photoresist, acid etching.
No good result so far; too many variables (exposure, developer ...); waiting for pocket laminator.
6 - Paint resist, drag engrave CNC, acid etching.
The best result so far.
7- Water slide transfer...
Here some results for method 6:
Resist candidates:
Drag engraved samples
# 2 didn't survive engraving.
Detail
Acid bath. Ferric chloride 1 hour 15 minutes.
#6 didn't survive acid, #5 did not go well. (the stamped numbers are wrong)
Cleaned of resist layer
Paint filling
Detail for #7
Sand paper cleaned
Detail #1
Detail #7
The winner
The engraver
I will try the Water Transfer method, and again the PNP and Dry Photoresist methods when the pocket laminator arrives.
Wagner
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WMello
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Pulley
Washers
Washers
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WMello
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Engraving
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WMello
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Seconds Dial (First Option)
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WMello
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PNP blue toner transfer resist
Two of the best results. Don't bother etching, too many flaws.
Dry Film Photoresist
A lot of flaws. The second one deserves etching.
I really don't like the chemical processes; there is too many variables. But the Photoresist is worth trying harder.
I've tried my best to clean the brass plate before applying the film and used a good grade laminator, at the recommended temperature.
By the way, I found out that fancy dish soap leaves a disgusting layer of oils on the washed piece.
Wagner
Two of the best results. Don't bother etching, too many flaws.
Dry Film Photoresist
A lot of flaws. The second one deserves etching.
I really don't like the chemical processes; there is too many variables. But the Photoresist is worth trying harder.
I've tried my best to clean the brass plate before applying the film and used a good grade laminator, at the recommended temperature.
By the way, I found out that fancy dish soap leaves a disgusting layer of oils on the washed piece.
Wagner
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