New Way to Get Free Project Plans

Posted on October 20, 2008 by chris.schwarz@fwpubs.com (Chris Schwarz).
Categories: Contributors, Woodworking.
Every woodworking magazine features drawings of projects as part of their printed editions. I'm excited to announce that Popular Woodworking, and our sister publication Woodworking Magazine are offering projects from our pages in a new, interactive three-dimensional format. I've spent the last few days uploading SketchUp models to the Google 3D Warehouse. I've you're not familiar with SketchUp, read on.


The image above is the Holzappfel Workbench built by Christopher Schwarz for issue 8 of Woodworking Magazine. But it's a lot more than an image. If you click on it, you will be taken to the 3D Warehouse where you can download the model. If you have SketchUp installed on your computer, you will be able to look at this from any angle, take it apart, measure parts and see how it all fits together. If you want to start with this design and modify it, you can do that too.



This image also links to a SketchUp model. This is the "I Can Do That" project from our June 2008 issue. SketchUp is a 3D modeling program that runs on both PCs and Macs, and it is available for free. To download it from Google, click here. When you have the program installed, you will find it intuitive to use and there is plenty of help available within the program and online. If you need more help, there is an excellent "SketchUp for Dummies" book and the author's blog is one more excellent resource.

Planning projects in SketchUp is very similar to building a project for real. This is one of the reasons it is easy to learn, and also one of the reasons that it is popular among woodworkers. The other half of this equation is the 3D Warehouse. 3D Warehouse is a website where SketchUp users can share their projects with the world. This is where we are sharing our projects and you can also find an amazing number of models that are already constructed, everything from tools to hardware to kitchen cabinets are online, and ready to be used in your own models.

We like the program so much, that we have switched to using it for many of the illustrations you see in the pages of the magazine. If you haven't tried SketchUp yet, I encourage you to give it a try. Even if you never make your own plans, it's an excellent way to review a project from the magazine before you build. In the coming months, we'll be regularly adding to the models already in the collection, and I will be teaching some classes on using SketchUp next summer. In addition, my new book Drafting & Design for Woodworkers has an extensive SketchUp tutorial, written from a woodworkers perspective. The book won't be available for a few weeks, but you can reserve a signed copy from my website by clicking here.

To visit the Popular Woodworking and Woodworking Magazine collection on Google's 3D Warehouse, click here

To download the free version of the 3D modeling program Google SketchUp, click here.

--Robert W. Lang

Difference Between Spar Varnish and Regular Varnish? - Question of the Week

Posted on by The Wood Whisperer.
Categories: Contributors, Woodworking.

This week’s question comes from K Sanchez who writes: “Please tell me the difference between spar varnish and regular varnish?”

Now some of you may have noticed that I posted this question while I was on the road last week. An inquiry from reader Kip made me realize that I did a pretty crappy job of giving the level of detail required to answer this question accurately. So, here is a modified answer to the original question:

All varnish contains a few basic components: oil, resin, and a solvent. By modifying the type and amount of oil and resin, we can get a bunch of formulations for both indoor and outdoor use. Our oil options include linseed oil, tung oil, and other less expensive synthetic oils. Common resins include alkyd, phenolic and polyurethane.

So before we dig deeper, let’s talk about why we need a different varnish for outdoor applications. Any wood stored outside is going to be exposed to a wide range of temperatures and weather, as well as a good dose of damaging UV rays. The changes in humidity cause the wood to expand and contract, and a standard indoor finish would simply crack and deteriorate under these conditions. Spar varnishes are typically designed to give us general protection, flexibility, and UV protection.

The ratio of oil to resin has a dramatic effect on the way the varnish will behave. For instance, using a small amount of oil and a large amount of resin will produce a very hard and brittle finish. Obviously, this is not suitable for outdoor applications. So what makes more sense is to create what is known as a “long-oil varnish”, that is, a formulation that contains a greater percentage of oil. The extra oil results in a softer, more flexible finish. And from what I’ve seen, tung oil is generally considered to be the best oil for these outdoor applications.

As far as the resins go, it seems to be a mixed bag when it comes to spar varnish. While many articles claim that phenolic resins are the best and most common, I found that alkyd resins tend to be prominent as well. Both Helmsman Spar Urethane and Epifanes contain alkyd resins. Its interesting to note that they also both contain some urethane resins to “fortify” the finish.

Most spar/marine varnishes will contain other important additives such as UV blockers, that give the wood that extra bit of protection it needs in harsh conditions. So generally-speaking, my preferred outdoor varnish would be a long-oil varnish containing tung oil, alkyd or phenolic resins, and UV inhibitors.



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#67- Gadget Station (Pt. 10)

Posted on October 17, 2008 by The Wood Whisperer.
Categories: Contributors, Woodworking.

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In this video, I cut and fit the door components. I also cut the mortise and tenon joinery for the rails and stiles. A stupid mistake causes a small injury and a bit of a setback, so the last part of the video is dedicated to fixing that mistake.

Links:
Gadget Station (Pt. 1)
Gadget Station (Pt. 2)
Gadget Station (Pt. 3)
Gadget Station (Pt. 4)
Gadget Station (Pt. 5)
Gadget Station (Pt. 6)
Gadget Station (Pt. 7)
Gadget Station (Pt. 8)
Gadget Station (Pt. 9)



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Jewelry Armoire - Project of the Week

Posted on by The Wood Whisperer.
Categories: Contributors, Woodworking.

This week’s project comes from Tim in CA who writes:

This jewelry armoire was a graduation gift for my niece. It is made out of Bubinga, Birds Eye Maple veneer (door panels), figured maple veneer (top), and Birds Eye maple (drawer fronts). Each drawer is dovetailed and the bottom drawer has a hidden compartment accessible from the back. The base is from a David Marks project Open Bookcase. The finish is Seal-A-Cell with several coats of Gel Stain on top. I was in way over my head on this project which means I got to learn many new things.

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Chippendale Chest of Drawers - Project of the Week

Posted on October 10, 2008 by The Wood Whisperer.
Categories: Contributors, Woodworking.

This week’s project comes from Allen in OH who writes:

Since you recently featured a project from some younger students, I thought I’d send some pictures of a project just finished by an “old fogey” student. I’m working towards a degree in craftsmanship at the University of Cincinnati. Even at 37 years old (a far cry from the high school guys) I’m not the oldest in the program by far. There’s a retired doctor who, at the age of 86, has been taking up turning and does some amazing work.

These are some pictures of the project I just completed this Spring. It’s a Chippendale style chest of drawers. The design was actually Glen Huey’s who once taught in the UC program and was the instructor for the class my instructor was taking at the time.

It’s cherry, secondary wood is poplar. The carcass is joined with hand cut dovetails, used a jig for the half-blinds on the drawers. All parts that needed mechanical fasteners (backs of the drawer runners and the ship-lapped back boards) were joined with reproduction cut nails, which are a booger to drive.

Finish is three coats of a homemade oil/varnish blend (I admit it, it was David Marks who sold me on the look of that finish) top-coated with three coats of gloss sprayed-on poly acrylic.

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