Monthly Archives: June 2012

Best Place to Find Figured Wood

The second week of June, I had the pleasure of spending a week in Hawaii thanks to an all-expenses paid trip. (Thanks again, Steve and Chris.We had a great time.) While there I learned more than a few things. I learned a guy that is rather round at the middle should stay far away from two-person kayaks – that revelation didn’t surprise many of my friends – and I discovered that a mustache prevents a dive mask from attaining a seal strong enough to keep water out of your nose when snorkeling. That was the first day’s events.

On the positive side, I learned that hiking in the rain forest and jumping from cliffs into water filled via a waterfall is a blast, that sunset cruises on sailboats are relaxing even though you have to wade through knee high ocean to get aboard and that a “lava flow” cocktail at the Four Seasons Resort is mighty tasty.

One more thing. If you ever have a chance to get out of bed at 2:00 in the morning, ride in a van for an hour to pick up gear for an sunrise bike trip down from Haleakala’s 10,023′ summit, TAKE IT. It’s magnificent. We were above the clouds as the sun rose. We stood in 40 – 50 MPH winds in temperatures around 30 degrees, but it was so worth it. Then before the bike ride began, we stopped to take in an incredible view of Maui’s crater. It looked as if we were on another planet.

What does all this have to do with woodworking? Each day of the week the Resort invites in artists from many different mediums. Day one of my stay included a ukulele builder. I spent a while talking with Colly Norman of Blue Maui ‘Ukulele. As he showed me his ukuleles, he introduced me to a wood that I knew nothing about, Mangifera indica or mango in layman’s terms. I did not know that this wood existed, or was harvested for use, and I surely didn’t know it was available in a high-figure variety.

Don’t shake your head yes. I dare you to tell me you’ve seen this before if you live any where on the United States mainland and haven’t visited a tropical paradise. I think it’s a secret kept from woodworkers that favor figure.

Immediately, I began my search for mango. I need to build something in mango just to say I have. (Here is a page with all the technical data, click here.) An online search shows many small pieces, but I want slabs. Then I stumbled onto Keim Lumber Company’s Mango page and received a bit of a shock. Check out the price. Maybe small pieces are the way to go? Then I found mango at Roy Lambrecht Hawaiian Woods and mango, at $15.00 per board foot for curly, was back in the running. I’m still in the hunt.

Even though the above linked data base doesn’t mention any toxicity, Colly told me that mango was a wood that some woodworkers cannot work due to a potential skin irritant much like poison ivy. I have also found that Mango wood should never be used in fireplaces or for cooking fuel, as its smoke is highly irritant.

Below are a few more photos of Blue Maui Ukulele instruments. Check out the inlaid surf board, which is Colly’s signature. Very Cool.

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Filed under Design, New Products

Finish Adjustments

I often get asked how much lumber should be purchased for a project. My answer is to have enough on hand that you do not have to settle for what is a mismatched piece in your project. Even with that in mind, there are times when mismatches happen. My secretary doors are a perfect example. In the photo you can clearly see the differences between the door panel’s rich, dark walnut and the significantly lighter walnut used in the frame. At the time, I selected those materials to allow the grain of the book-matched panels to stand out. Big mistake.

For a better look at the toner I used, click the photo.

As I applied oil to the walnut, the differences proved to be too much. If I had determined the differences prior to oil application, I could have evened out the frame using aniline dye. With oil applied, the process is different. I decided to use a lacquer-based aerosol toner to correct my colors. I used a dye-based toner instead of a pigment-base toner to minimize the effect on transparency.

Before using any toner, I added a coat of shellac to my doors – shellac is the perfect finish to apply over an oiled surface (allow oil to dry 24 to 48 hours). I then added toner on top of the shellac. I masked-off the panel area to adjust only the frame, then lightly sprayed a few layers of toner onto my frame until my pieces better matched.

This toner has a higher sheen that the early coating of shellac, but that sheen is leveled when sealed under another coat of shellac.

When I was satisfied with the match, I sprayed another layer of shellac to seal in the adjustments. From there, I proceeded with normal finish processes.

Here is a look at a completed door front set beside an non-treated door back. You can see how my frame is a closer match to the panel, and just how much the change was in total. I would have preferred to select my materials for a closer match from the beginning, but it’s good to know there is a way to fix bad decisions.

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Filed under Finish Techniques, Shop Tips

Protect Your Inlay

My Shaker counter, featured in the June 2012 issue of Popular Woodworking Magazine, has small diamond inlay pieces set as escutcheons. As I finished the project, I paid particular attention to those inlays – I wanted them to stay white. It was about that same time that the folks at The Finishing Store asked me to write an article for their newsletter. Naturally, how to protect inlay came to mind. Below is the article I contributed to The Finishing Store newsletter. You can read the piece here, but you should also check out their web site and monthly newsletters for more information. This month Bob Flexner has a piece about boiled linseed oil – a highly debated topic in reproducing period furniture (click here).

Protect Your Inlay

One of my earliest furniture projects was a Sheraton Field bed that I built when I was 14 years old. Later, another version of that same bed was built. This time, however, I inlaid small Birdseye panels into the square sections of the mahogany posts – an idea that caught my eye while surfing museum books.

From nearly the beginning of my furniture building career, my favorite finish has used aniline dye to color my project with top coats of shellac and/or lacquer. As I contemplated how to finish the bed, I was concerned that all the work put into those Birdseye panels would be for naught if my inlay became muted as dye was added. I believed that the distinctive figure and light color of the Birdseye inlay against the reddish hue of the mahogany would be enough of a contrast to keep the inlay a real eye catcher in the finished bed. I moved forward.

As I sprayed dye onto my first post, the panels changed in color far greater than I expected. While the mahogany achieved a deep red hue, my Birdseye, beginning as a pale yellowish color, gained almost that same red hue. In the end, the panels were barely visible. I learned a valuable lesson that day, one that I adhere to strictly these days. Protect your inlay.

How can you achieve great color on a project without muting or otherwise coloring the inlay in the design? That’s a question I get get asked many times. There are a few techniques I’ll share to help keep your inlay fresh, but only one that works every time. If you have an inlay-laden project sitting in your finish room waiting to be completed, or you have little patience as I explore options that work but not necessarily all the time, you may want to jump ahead. Be warned however, there is beneficial information in the less effective techniques discussed.

As I contemplated my first heavily inlaid project after my ill-fated bed finish, I, like all good woodworkers did, turned to books and magazines for ideas and to discover the correct method to color everything but my inlay. (Today, we would turn to the Internet for the same information.) I did get get a couple nice pointers, but are these the way to work?

One technique that I read about, but have not attempted on an actual project, is to install inlay after your finish is complete. For the life of me, I cannot see any benefit to this process. I suppose, if you were more than cautious, you could bring your inlay to just even with a completed finish, but if you go one millimeter more, you’re in trouble. I would lay odds that I would scrape, sand or otherwise hit the completed finish as I tried to level inlay. That would have me starting over. For me, this one paragraph sums up all that needs to be said about this technique. No thank you.

Chemical coloration is another option. Chemicals can color some woods without coloring others, but for the most part we do not work with chemicals today as woodworkers did centuries or even decades ago. In fact, if you’re building a reproduction, there is little written evidence that the chemicals discussed below were used on period pieces built before 1800. Most period colorants were made using natural products. Also, many of the chemicals mentioned are not easily accessible or simply too caustic to use.

Potassium Dichromate is most often mentioned to deepen the color of  mahogany and cherry. In turn, it leaves inlay less affected although holly, which has a firm association with period inlay, yellows slightly. Lye is another chemical used to adjust color, as is nitric acid which is the primarily choice to color gun stocks, especially tiger maple stocks. (Use of any of these chemicals should always be done outside to offset potentially toxic fumes, and while fully protected with gloves and goggles. After your initial coating you still need to be careful not to ingest any of the chemical. You should even go so far as to blow sanding dust away from you as you sand your project.)

Even if you decide to don a hazmat suit and make chemicals your choice to color hardwoods, the process is more involved than aniline dyes or stains. Not only do you apply your chemicals, but there can be the added steps of neutralization. What neutralizes what is something you need to know prior to getting started.

In the end, I’m not a chemist, nor do I wish to be one. And my finish room is not equipped for chemical mishaps. Besides, how many different soakings do you think your project can withstand before you run into problems?

The preponderance of information gathered from Internet woodworkers suggests that you coat inlay with a topcoat of some kind prior to a dye application. To me, this practice is conceivable if you’re coating a nice patera or larger-sized inlay, but what patience does it take to coat a piece of 1/32″ stringing that runs up and down card table legs? What brush should you use and how steady must your hand be? Don’t think about taping off each and every piece of string. If the time factor doesn’t bog you down, dealing with seepage under your tape will frustrate you to no end. And remember, you need to cover your string and only the string – topcoat that spills over the edge or is wicked into nearby woods also repels dye and that’s not going to look good in a completed finish.

One additional thought. You must choose your top coat to work with your dye or stain, not against it. As an example, if your dye was alcohol based, you would not want to use shellac to guard your inlay because shellac is also cut with alcohol.

I tried the coat-your-inlay technique on a slant-lid desk prospect door that had the only piece of inlay used on the project. I taped off an inlaid maple diamond and sprayed a couple layers of lacquer over only my inlay. I let it dry completely before moving on to dye the desk with water-based aniline dye. As I soaked my desk with dye, I noticed that my diamond had gone from near colorless (a high grade in diamonds) to a light yellow. It appeared as though my top coat held off a complete coloring of the inlay, but that there was some color added. Why?

In a previous article, I wrote about glaze. One area discussed was why you should glaze your entire project instead of simply around mouldings or other areas expected  to show age. The same reason also comes into play when dying over inlay which has a topcoat added. Your topcoat, while smooth to the touch, has small craters if viewed under magnification, even after sanding. Those craters gather dye and that turns inlay from white to something less than white. It may be acceptable, but it is not uncolored.

On a recently completed project I again used this method, but added another couple steps to kick up my results. As I installed my inlay, I made sure to spread glue around the edges of my recess. This would help deter dye from wicking into the inlay. After spraying a couple light coats of lacquer over the inlay, I also taped over the inlay to eliminate any microscopic craters from drinking in my dye. The added steps did the trick. In fact, I felt that the inlay may have ended up too bright when compared to my dyed finish, but that was taken care of as I added several additional coats of finish. I would highly recommend this technique if you have minimal inlay in your project, but if you are working with myriad amounts of string and other inlay the process is long and tiresome and boring and dull.

Now that we have covered techniques that should be avoided and those that work some of the time, let’s take a look at the one technique that I find works every time I use it. If you study pieces found at our museums, you’ll find mahogany, walnut and cherry furniture full of inlay. There are spice boxes with extravagant compass inlay doors, card tables built during the Federal period that have intricate leg, apron and top stringing, and English tea caddies with a multitude of banding work. In most examples you’ll find that the woods used did not have its color altered in any way.

The technique that works all the time is to build using woods and inlays that do not require color alteration. No dyes, stains or chemicals. I know it’s simple, but it is the best technique. If you keep the rules simple, success is much easier to find.

One additional note worth mentioning to achieve the best look in your project is to carefully select woods for any project you intend to finish without colorants. In fact, this is a good idea when doing any woodworking. Make sure your wood matches in color. That means before you begin have enough lumber on hand to get through your project.

Build Something Great!



Filed under Finish Techniques

Secretary Secrets

Last week I disclosed compartments in the desk lid lopers (read and/or view those here). As promised, here is a look at secrets compartments in the secretary that I have finally moved into my finish area. Enjoy. And if you have comments or questions, make sure to post them below.

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Filed under Secret Compartments, Shop Tips