33 votes

What are good ways to spray paint a QR code on a footpath?

Here's a QR Code Stencil Generator which automatically generates thin bridges between islands. As mentioned by @Aloisdg : It is a Processing project and it is hosted on GitHub. I tested it ...
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26 votes
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What are good ways to spray paint a QR code on a footpath?

One approach to avoid the "island" problem could be to split the pattern into two stencils. In each stencil only the holes of every other row are cut out. First colour is applied to one of the ...
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23 votes
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How can I make a sketch under a watercolour painting and have it not be seen?

Watercolor is, by its very nature, a transparent medium and so it becomes really quite difficult to manage this. However, there are a couple of things you can do to help: Draw very lightly and then ...
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  • 3,363
14 votes

Intentionally letting watercolor paints dry before using them?

Many people do this, it is common practice among watercolorists. Watercolor paints can be used in their wet form via a tube or they can be used as a dried over consistency. It has nothing to do with ...
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13 votes
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What does it mean to "push your values"?

If there isn't enough separation in the levels of the values used in rendering an image then the image can look washed out or the shapes poorly defined. Someone saying, you need to "push the values", ...
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  • 2,936
13 votes
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Intentionally letting watercolor paints dry before using them?

It sounds like your wife learned to paint with watercolor paints in pans, and/or learned from someone who only really knew of these types of paints: These are in a sense the ancestors of the kiddie ...
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  • 1,798
13 votes

Are there any downsides when painting with a cyan-magenta-yellow palette instead of the traditional yellow-blue and-red?

Cyan, magenta and yellow are actually the primary colors you should use when painting with inks and paints. (I'm surprised we didn't have this kind of question asked before, because most of us are ...
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  • 8,535
12 votes
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What are the little pieces of wood that come with pre-made canvas for?

These are called "canvas keys". The are shimmed into the corners of the canvas to maintain the tautness of the canvas. This generally happens only on machine-assembled frames, or on mass-produced ...
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12 votes

What are good ways to spray paint a QR code on a footpath?

What about a custom 3D printed embossing roller?
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11 votes
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How do you fade one color to another with oil paint without getting the mixed color?

There are green areas in the photo, although they are not bold. Maybe your solution would be not to fade but to juxtapose bold colors. Yet, if you want to fade, painting by layers will have a cleaner ...
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11 votes

What is this liquid called in my India ink?

India ink has only three ingredients: lampblack, water and gelatin or shellac as a binder(in fact, traditional India ink doesn't even contain this), with shellac being much more common. As you've ...
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  • 2,264
11 votes

What are good ways to spray paint a QR code on a footpath?

Instead of spraypaint - consider a "pavement sticker" or "footpath decal" that looks something like these. A brighter background colour will help it stand out much more than paint on a dingy ...
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  • 316
10 votes
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What is the difference between linen and cotton canvas?

From Understanding the difference canvas and linen: Canvas can mean different things to different people. In the context of painting, the word ‘canvas’ means a fabric used as a painting surface. ...
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10 votes
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How to overcome the fear of imperfection?

There's a famous story about a ceramics professor who separated his class into two groups of students. The students in Group A were graded solely on a single pot they presented at the end of the ...
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  • 2,385
10 votes

How to hang a painting on plywood on the wall?

If you have some power tools, you can make a very thin French cleat. The image below shows one designed to hold a heavy cabinet. The two mating pieces are cut at an angle, typically 45°, and the ...
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  • 9,685
9 votes
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How to paint the background of a portrait painting?

The paint does make a difference in whether or not you can easily paint over the background. Watercolor, for example, does not easily cover other art and you would need to use a different technique ...
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  • 1,082
9 votes

What are good ways to spray paint a QR code on a footpath?

How about buying some grid-shaped welded wire metal mesh (commonly used for rabbit or chicken hutches), and using sticky tape to cover the squares you want to mask? The wires would be thin enough ...
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9 votes
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How do I replicate this misty spray paint texture/pattern?

If the material is metal, one can use a wrinkle finish powdercoat to accomplish this result. It's not quite exactly the same texture, but wrinkle finish powdercoat may qualify in that it's random and ...
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  • 6,193
8 votes

How can I make a sketch under a watercolour painting and have it not be seen?

It would be helpful to know the thickness/density of your paper. The specifics, grades, etc. are beyond your question. However, you can look at the cover of your pad or pack, refer to your supplier if ...
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  • 89
8 votes

It is easier to learn to use oil paint or acrylic paint?

Oil paint dries slowly and mixes well on canvas (A thin paint will stick to a thick paint). It also adds texture but shows brush strokes. You are going to want to work in a ventilated area. Acrylic ...
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8 votes
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Wall art sizing - how to convert between inch and cm?

If you are seeing online store references that sell items manufactured for US sales primarily, the inch figures are more likely going to be accurate. The conversion results, for your example, in 35.56 ...
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  • 6,193
8 votes
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Drawing human or animal bodies which aren't too realistic

If you want to draw objects (humans, animals, or whatever) that are stylised (i.e. aren't too realistic) you need to learn how to draw them realistically first. The idea is the same as “learn the ...
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8 votes
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Why is everyone so secretive about pricing for painting miniatures?

In my own personal experience, I have found that sellers do not publicly post their prices in order to remain competitive in the market. If they were to post their prices, a competitor can easily ...
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8 votes

Can I make primer from student grade acrylics?

In short: No, you cannot make an effective primer out of paint. Primer is not just "paint without pigment," and the purpose of it isn't as a base coat; the purpose of primer is to prepare your ...
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  • 3,318
8 votes

How can I paint 1000 wooden balls that are 1" each?

Painting by immersion would be fairly easy, but drying would be harder. Industrially I suspect they'd be kept moving with warm air. They'd be too expensive for this quantity, and come in sets of too ...
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  • 4,899
8 votes

Masking tape tears paper off!

There are a few tricks of the trade for using tape on drawing paper. Here are some of them: Use good quality paper. Try using different types of tape to see which kind works best with the type of ...
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7 votes

How to paint the background of a portrait painting?

You could try applying a frisket to the bird and flowers first (to isolate and protect your lighter more detailed areas) before beginning painting your background. Once your background color/colors ...
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7 votes
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What are the different type of paint brush bristles?

Natural vs synthetic I did a bit of research into this and found that there are two main kinds of paintbrush bristles: natural (usually made from animal hair) and synthetic (usually made from some ...
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  • 1,976
7 votes
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It is easier to learn to use oil paint or acrylic paint?

Generally speaking, acrylic is a cheaper and more forgiving medium to start with. As mentioned by other respondents, acrylic is fast-drying and can be painted over. You can also use acrylic media, ...
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