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#paint

4 posts3 participants0 posts today
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

The glider fuselage has been wet sanded.

It's time to for final buffing.

I did some experimenting this morning to get a feel for process and especially process control.

I had two different polishing pads. Would they give different finish quality?

Would a grid of black Sharpie help me keep track of buffing progress?

(Don't worry about the Sharpie. It doesn't stain the polyurethane paint. I can wipe it away with a solvent like acetone.)

Either polishing pad gives similar results, and buffing until the Sharpie grid is gone appears to be a workable control technique.

Water beading on the buffed surface is another indication of progress.

On areas with complex, and especially concave curvature, I'll buff by hand.

I'm not trying to do a fantastic job on the fuselage, but I'll gain experience before I do the critical stuff: the wings.

The initial experiment setup. Two small Sharpie grids on the belly of the fuselage. Buff one of the grids with one of the polishing pads...but don't remove all the Sharpie on the first grid....
I was surprised that it didn't take that long, or that much pressure to remove most of the Sharpie grid. Once I cleaned up this area, I saw that it had an acceptable finish quality.
Here is another indicator of buffing progress: water beading on the surface when it's sufficiently buffed.
Both polishing pads produced similar finish quality. I think the Sharpie grid is a decent tool to show buffing progress. Now I just need to put in the hours....
#AvGeek#Aviation#ElectricAircraft
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AI6YR Ben

Just realized I have a bicycle saddle (from the garage sale bike I bought for $50 -- replaced with a Brooks) which is marred by some wayward housepaint, BUT I CAN CUSTOM PAINT IT TO MATCH the new paint job on the vintage FUJI bike I am restoring. 🤯 #paint #bikerestoration

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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

The glider fuselage paint job has been scraped to remove drips and runs, and also to cut off the top of all the orange peel bumps that cover the entire surface.

I had to experiment with making a scraper tool. It required constant sharpening.

I have transitioned to wet sanding with a dual action polisher to remove the rest of the orange peel, but I had to experiment a bit to get a process and system. That's because I can't see the progress of sanding of a white surface that's covered with sanding water sludge. I will probably draw a grid of lines over the fuselage that allow me to monitor progress.

The final photo shows light at a glancing angle across a sanded test patch (fuselage belly...I don't mind screwing up here). I see no signs of orange peel, or larger ripples/waviness.

I think I can transition from this sanding job directly to rubbing and polishing compound.

Testing various pieces of hardened steel to make a scraper that removes the tops of all the orange peel bumps. Some metal could not take or hold an edge well.
Glancing light shows that the vertical fin on the fuselage has been scraped all over. The tops of orange peel bumps have been removed.
I need to draw black lines on the fuselage to easily monitor sanding progress. When the lines are gone, I have sanded enough.
Low angle light shows a uniform surface with no small-scale orange peel, or larger scale waviness or ripples. This is a good sign.
#AvGeek#Aviation#ElectricAircraft
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James Akers

Spent some monies before tariffs started rolling in and got some phosphors (from the Netherlands).

Now I am making some new colors- a warm white and a pink. Mundy Hepburn was right- when buying phosphors- just get RGB... oh an maybe violet.

Gotta mix these on the ball mill for the recommended two days and then do some test coats- I sure am excited!

realistically I might do a test tomorrow. It will be nice to see how it moves and coats a sample tube.
It sure is coating the jar well after about 20 minutes. That is a 254nm quartz lamp for the argon mercury.

The nitrocellulose coatings are so effective! The chemicals are kinda nasty- but they evaporate rapidly and don't make phosphor waste that cannot be put down the drain.

An old RAGU jar coated with a speckly coating of warm white light. Bkue light from the Argon mercury quartz tube above. Manifold in the background.
red and green phosphor on a clean black cap- 10 grams of each
I shouldn't have added the regular warm white atop the warm white I got from mixing red and green in a 2:1 ratio. Oh well. A glowing pile of yellowy white powder atop an orangey powder weighing 39 grams
The pink I got from mixing red and purple- 38 grams worth
#color#phosphor#pigment
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

I needed to mix a small bottle of nail polish to which I had added some acetone in order to thin the paint somewhat. This was a perfect job for my large paint shaker.

I needed thinner paint for some touch-up work at the exhaust port on the glider's turtle deck.

See next two comments to this post....

#AvGeek#Aviation#ElectricAircraft
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Lydia Vvinters

#ScribesAndMakers If you paint, do you have “recipes” or tricks for mixing colours, or do you eyeball it?

I made my own DIY paint. Crushed charcoal, eggshells, or flowers and egg white. The red in this was made of rose pedals and red cabbage, the background was just the back of an old box.

I thoroughly enjoy making funny, colourful goop. This is from an old series I called my "Paint Things"

My one trick is, not being afraid to get a little dirty.

Abstract painting. A turquoise pastel blue emerald void with an organic shape floating inside. The shape has some horizontal lines and some white, black and red paints.
#fediart#mastoart#paint
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Hanksha Miniature Painting

I just finished my Grogu! It's a 3D printed figurine that was gifted to me for my birthday. I've most done it with the airbrush and a bit of brush work. Super happy with the results and it was very relaxing to work on a scale like that, not struggling to get the small details.
It was my first time painting a 3D printed figurine and I was really surprised by the quality, although I definitely need to learn how to clean it up properly.

#starwars#starwarslegion#mandalorian
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