It is hard to believe that it was almost ten years ago I witnessed a CNC router in action for the very first time. I was fascinated and simply had to have one! Although I had been in the creative end of the three dimensional sign business for most of my life I didn't really know what I would do with one of these machines - but I just knew it could do fantastic stuff.

Along with the CNC router I discovered the wonderful material called Precision Board and the glues, primers and other companion products they offer. Since then we have gone through many tons of the material using it in most signs and projects we tackle. This journal will chronicle our many adventures both past, present and future. I'll talk from the perspective of someone who pushes these products to the creative limit on a daily basis. I'll be adding to the stories two or three times each week. -dan

Wednesday, January 15, 2014

Painting techniques and tricks

When I design and route our projects I always have our painting process in mind from the very start. By far the single most labor intensive part of our projects is the paint. For starters we brush paint our pieces rather than spraying. The reason is simple...  they last longer. We brush on at least three coats of paint for the same reason. Two coats look good but there last longer.

We design texture into our signs so they capture light better and also accept glazes better. This makes the sign look better and cuts down our painting time. In our glazes we almost never use less than there shades and most often use three. These are applied from lightest to darkest. The first glaze is only rubbed off slightly revealing only a little of the base color at it's full bright hue. The next darkest glaze is rubbed off a little more showing through the lighter glaze and bits of the base color as highlights. The final, darkest glaze is rubbed harder except on the edges and around the lettering. This gives the piece a richness and depth and makes the letters jump when we are done.

The border around the letters is painted with a dark paint, the same hue as our darkest glaze. I designed the routing files so the border and the lettering is raised making the cutting of these areas pretty simple. The lower areas are painted up onto the upper areas so we only have to cut once. This provides a dark border around our light colored lettering.

Since I didn't get examples of the current signs I had to dig back through some old projects to illustrate my procedure. This was a farm sign we painted similar colors. The background got it's three coats of light base color and then I started in on the glazes with the lightest color being first. This was wiped enough to reveal the base colored highlights on the high areas, leaving the glaze in the lower areas. The dark paint on the edges is the last glaze color which is painted as a solid color (three coats) on the back.

Here's the same project with the second (and last glaze). Notice how it is not wiped as hard at the edges and around the lettering leaving these areas a touch darker. Once the glaze is dry I then go back in with a paint that is the same hue as the darkest glaze and paint around the border of the letters making sure I paint up onto the top of the letter. Most times I will cover the letters. Notice the dimensional pictorial is not yet painted. Glazing is MESSY and so we leave our fancy paint work until the end so it does't get messed up.

In this shot we've painted the pictorial, and added one glaze to it. Then we paint (or in this case gild the top surface of the letters The raised edge makes this pretty easy and fast and does not require nearly as much skill as you would imagine.

 Back to our current examples...  In this case the sign background had a blended surface with only a little texture. we did not apply any glazes to these areas. But we did paint the raised letter border a dark color to make the yellow letters pop against the blended blue background. Like the first example the dark blue was painted up onto the letter tops. Then as a last step the yellow was painted on. It took four coats to cover well.

Bucky was painted his light base colors in a single coat. Then we applied the second and third coats to the areas which would receive the first glazes. This included his body with the fur parts and the swing plank. The plank got it's first reddish glaze  while Bucky's tail and fur got a light tan glaze.  If you look close you can see the glaze was slopped onto his blue jeans but it's OK because they still need two more coats of light blue. Painting the jeans after the glazes means they only need to be cut once.

The tail, body and swing plank then got a deeper brown glaze. The rope was then painted and it got one middle brown glaze. A little cutting had to be done but since the glazes are transparent it wash;t very hard.

For areas like his hands and the smooth rope the glazing is a little trickier. We use old towels to wipe our glazes. They soak the excess up real well and for smooth areas like this and if we pat instead of rub we can fake a texture. The key is to work quick while the glaze is fresh and wet. If you don't you will end up having to repaint - including the base colors.

The jean base colors were then carefully cut as needed and the dark blue glaze brushed on and then patted off. The red shoe tops, the shoe laces and his eyes were the last areas to get paint.

Hailey did the painting of the Wave Swing sign. She has worked for us about a year. Prior to that she would have insisted she wasn't particularly artistic and would never be able to pull off something like this. Obviously she was wrong about that. But she has also worked hard to build up her experience and skill. It sure shows here. Nice job Hailey!