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Old 09-09-2016, 11:52 AM   #11 (permalink)
 
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Quote:
Originally Posted by mg_dreyer View Post
The yellow pens above were part of my demo in Ohio. I use Testors paint to paint the hole with a q-tip. For 7 mm you will also want to over-drill. I use a 9/16" bit to give me the clearance for the paint. Never had an issue with the 10 mm and bigger. I know a lot of people suggest painting the tube and it works, but what you are trying to accomplish is bouncing the light back to the blank. Painting the hole the light will reflect through the blank and then back. Painting the tube the light now must pass through glue also. Both work. You can choose my experimenting. Just my opinion.
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Originally Posted by mg_dreyer View Post
As you can see for the demo pens above you can also take advantage of the fitting to fool the eye on the color. The darker pen has black fittings to enhance the dark tones, the light used silver. Adjacent colors impact the perceived colors.

mg , thanks for the advice and added prospective on hardware color , those yellow pens really show what you are saying , and they are beautifully done .


Quote:
Originally Posted by Edgar View Post
I also use spray paint in the shake/rattle cans - generally Krylon acrylic paint. I spray the inside of the blank 1-2 sec from each side and I also paint the tube (probably not needed, but I do it anyway). Usually I paint the tube & blank the same color, but sometimes I do use different colors (I can't give a specific reason why - sometimes it just strikes me that they should be different or maybe I just want to experiment.)

The paint must be allowed to cure fully. I generally give it at least 2-3 days, sometimes more. Depending on build-up, it may be necessary to run the drill bit through the blank again before glue-up. I do this by hand to avoid heating the paint with power drilling.

As you have seen, there are lots of ways to approach this. Try several & see which you like best. You might even wind up with your own variation.
Edgar , thanks for your take on this . Its a big help getting all these prospectives on this , I am probably over thinking this as I do most things but I like going into projects with at least an educated idea of what I am trying to accomplish and why .
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Old 09-09-2016, 01:00 PM   #12 (permalink)
 
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Ed at Exotic Blanks has a video or two showing some techniques

I sometimes use more than one color in streaks, where each color provides reinforcement to different hues in the blank.

Silver may be the overall best fall-back option, and for blanks that are transparent or translucent, polishing scratches out of the inside of the blank changes the appearance.

Play with it and have fun learning ---
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Old 09-09-2016, 02:40 PM   #13 (permalink)
 
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Has anyone tried using something like the Krylon "Looking Glass" mirror paint inside the blank? I was wondering if it would up the albedo and what effect that might have.

Last edited by Dalepix; 09-09-2016 at 02:43 PM.
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Old 09-09-2016, 03:53 PM   #14 (permalink)
 
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Ed at Exotic Blanks has a video or two showing some techniques

I sometimes use more than one color in streaks, where each color provides reinforcement to different hues in the blank.

Silver may be the overall best fall-back option, and for blanks that are transparent or translucent, polishing scratches out of the inside of the blank changes the appearance.

Play with it and have fun learning ---
Yep Ken , I watched Ed's video's yesterday , he's got some good ones . I like his method being I am in a basement shop and have 3 young Grandsons my wife and I are raising . The acrylic paints a q-tip method looks to be the most convenient in my case , so that's what I'm gonna try first . I've picked up some of the 2 oz bottles of paint from Michaels @ .79 a bottle so it'll be a cheap experiment . I've already prepped a paint stick with all the primary colors like Ed had in his video , and I also noted his comment and yours about silver , I made sure that was on the Michaels list . Thanks for the reply
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Old 09-09-2016, 04:38 PM   #15 (permalink)
 
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Default Just my .02 worth...

... What I do is paint the inside of the blank with Rust-oleum spray white primer. They have some that say on the can that it bonds to plastic. I use white on everything because, for me, it enhances the color in the blank.

I have occasionally tried painting the tubes as well, but it doesn't seem to add anything to the result.

I spray from both ends; let it dry and apply 3 or 4 coats. I then let it dry for a few days before I epoxy the tubes in. I think it is important not to rush the process.
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Old 09-09-2016, 07:31 PM   #16 (permalink)
 
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Originally Posted by mg_dreyer View Post
........For 7 mm you will also want to over-drill. I use a 9/16" bit to give me the clearance for the paint. Never had an issue with the 10 mm and bigger.......
Are you sure you meant to write 9/16" and not something closer to 5/16"?
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Old 09-09-2016, 08:37 PM   #17 (permalink)
 
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Curly you are correct on the typo 9/32
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Old 09-13-2016, 06:41 PM   #18 (permalink)
 
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First back painted blank , also painted the brass tube , Teal Tempest AA blank from Exotic Blanks . I painted the brass tube and inner hole in blank silver , this blank was pretty translucent once it was turned down , I got good coverage with the acrylic paint and you can't see any glue gaps , used epoxy . Thanks for all the tips folks

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