Tom’s Workbench

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Archive for May, 2009

Quick Poll

Sunday, May 31st, 2009

Applying a finishIt never fails.  You get through the final assembly of your project and it looks absolutely gorgeous.  Then, it hits you like a ton of bricks – how are you supposed to get your hand holding a piece of sandpaper inside those tiny and intricate openings to get a good smooth surface, and how are you expected to get a smooth finish in those nooks and crannies?

The ideal situation would be to have finish the pieces before you got to this point in the project, but how were you expected to quell your excitement during the assembly process?

And, then there’s the concern of getting finish on areas you need to glue up… will the glue stick to that kind of finish, or will the project fall apart?

This week, I want to know your thoughts on prefinishing project pieces before you get to the point of final assembly.  Is this a routine practice or not for you?

Do you prefinish the parts of your projects before you assemble them?

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Link of the Week

Friday, May 29th, 2009

Rick’s Workshop Electrolysis Rust Removal Page

Rusty PlaneWhy is it that some of the best hand tools ever manufactured lie rusting in some basement before they are offered up for sale?

Are you intimidated to try to rehab a rusty old tool because you don’t know how to clean off the crust?

Well, Electrolysis is one very effective and scientific method you could try. Basically, you remove rust by immersing the plane in a solution of   baking soda and water and running a charge through it from a battery.

A woodworker named Rick  has given thorough step-by-step instructions on how the process works, and he claims that it’s a very easy thing to do that gives good results.

So, the next time you come across and old rusty and crusty flea market find, pay Rick’s site a visit and give the technique a whirl.

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Bits ‘N Pieces

Wednesday, May 27th, 2009

You can learn a lot about people when you are shopping for a home.  While it’s been about a dozen years since my wife and I bought our house, the memories of walking into people’s homes on our short list still live vividly in my mind.

There was the smell of the home of an avid cat lover, the sight of burnt orange and avocado appliances of people who chose not to update their 1970′s kitchens and the strange perceptions of being in a home where the owner had hung several overhead lights for decoration.  Yes, that’s right. Several of these light fixtures were just screwed to the ceiling, not even wired to the home’s power system.

The home we eventually bought was owned by an avid shot glass collector.  She had big shot glasses, small ones, ones printed with logos from big cities and small towns. Colleges.  Hospitals.  Even a sheriff’s office. She must have had three hundred, all on display around the home.  It was quite the impressive display.

I wonder when my wife and I eventually put our home up for sale if people will have an opinion about my router bit collection…

Routers are extremely versatile tools.  They can cut joinery or profiles.  They can help you joint a board’s edge or trim a shelf edging flush. They are useless paper weights without bits.

My mom gave me my first router for my birthday many years ago.  It was a fixed base Craftsman light duty model.  She asked me what I needed to go along with the tool, and I told her I needed some router bits.  She was stunned to see the vast array of bits available – and the variety of price points.  Eventually, she settled on a small starter kit that served me very well for the first few years.

A quick perusal through a woodworking catalog will show scores of profiles available for sale – from the plain straight bit to the most exotic multi-profile bit.  They are sold individually or in large all-encompassing sets. Do you need all of them to woodwork?

Hardly.  However, you do need some basics to get the ball rolling.  A set of straight cutting bits.  A flush trim bit with a follower bearing mounted at the bottom.  A chamfer bit.  A few different styles of round over bits.  Maybe an ogee profile to put a decorative edge.  That should get you started.

For me, I bought a set of 20 bits to start – the green ones in the wooden box.  Some conventional wisdom says that buying sets of bits is a waste of time.  You will use a few bits a lot and most of them very rarely.  My experience has been a little different.  The set I bought actually has several bits I love to use, and the entire kit does get a workout.

After I purchased my kit, you can see I got my hands on a few other individual models and sets.  I have two rabbeting sets – one does larger rabbets, the other smaller.  I have a set of slightly undersized plywood bits to cut slots to fit modern cabinet grade plywood.  Dovetail bits to work on different jigs.  Cope and stick bits to create frame and panel doors…

Wow, that’s quite a collection…  I had no idea I had added so many bits.

When you do buy your bits, look for carbide models.  Sure, you can modify your high speed steel bits’ profiles to make custom models, but carbide cuts so much more nicely without the need for frequent resharpening.  Also, don’t be afraid to pay some money for quality router bits.  Sure, you could go to eBay and buy a set of 100 bits for $39, but what are you getting for your money?  You will probably be disappointed with the results.

And, never be afraid to experiment with your router profiles.  You may have your eye on a fancy profile bit, but break the design down to more basic round overs, coves and chamfers, and you may discover you can use two or three bits you already own to make an exact match.

In order for me to keep my collection – and you to keep yours – in tip top shape, it always pays to follow the standard advice:

  • Don’t let the bits knock together.  Carbide is tough stuff, but it’s also very brittle.  Allowing the bits to knock together while in storage or on your workbench can cause the cutters to chip or shatter.
  • Keep ‘em clean.  Just like saw blades, router bits can get gunk build up on them.  Your best bet to keep them clean is to first remove any bearings (if the bits are so equipped) and wipe them down with mineral spirits. You can use an old toothbrush to help scrub the stuff off, but nothing more abrasive than that.
  • Tighten them properly.  Your router’s collet does a great job grabbing the bits – when it’s properly torqued down.  To install a router bit properly, don’t let it bottom out in the collet – pull the bit up a fraction of an inch to keep the bottom of the bit off the router’s spindle.  Then, snug up the collet nut and gently twist it to make sure it sets firmly.  Don’t crank down on the wrench – you might damage the collet or make it nearly impossible to release.
  • Store them where you can see them.  If you don’t know which bits you have, how will you now they are available for you to use?  Store them out of harm’s way, but someplace where they are easy to get to and put them to use.

Have I bought my last router bit?  Not by a long shot.  I’m sure a new jig, a new application or a classic molding profile will be announced, and a new Uber-Bit  will be promoted which will be capable of joinery, decoration and establishing world peace.

And, when I do buy it, I’ll proudly add it to my collection.  It will become a new conversation piece in my living room.

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A moving experience

Monday, May 25th, 2009

Wood moves. As temperature and humidity levels change, wood’s cells will absorb and emit water to reach an equilibrium point. Sure, it can be slowed down by a wood finish, but it can’t be eliminated.

This is a universal truth that all woodworkers need to understand when they build a project.  All too often,  woodworkers need to learn this lesson at least once the hard way before it truly sinks in.

Sure, there are lots of tables and charts that will tell you exactly how much wood will move, but to get a real life idea, I’ve decided to set up a little experiment.  My shop is in the Tampa Bay area, and I’ve enlisted the help of two talented woodworkers who live in different areas of the country with wildly different weather conditions.

First is the Wood Whisperer himself, Marc Spagnuolo.  Marc lives in the greater Phoenix, Arizona area.  The other woodworker helping me out is Dave Campbell, deputy editor of Wood Magazine.  Dave calls the greater Des Moines, Iowa home.

While this is a wood-based article, it also gives me a chance to strut my weather geekiness in the name of woodworking. It’s obvious that changes in latitude will have a dramatic effect on the weather, but geography and location from the nearest large body of water will also play a part in the picture.

To help you understand the differences, I will reference the mean daily temperature and dew points for each city.  Why these two readings?  First, the mean temperature is an average temperature of the air as indicated by a properly exposed thermometer during a given time period, usually a day, month, or year. This way, we don’t have to wonder about abnormal cool snaps or heat waves – the data will be a little more smoothed out and better representative of a typical day.  In this case, we’ll look at the mean temperature of a given day – May 25 – for each of our cities.

The other reading is the dew point, which is the temperature at which the air becomes saturated and produces dew or – if it’s cold enough – frost.  Why not use relative humidity?  Well, relative humidity is – errr -  relative to the temperature, and will rise as the air cools off overnight and drop as the air warms.  The dew point produces a better apples-to-apples measurement for our purposes.

Here are some of the stats from the cities:

Tampa, Florida – May 25 mean temperature 79 degrees F, Dew Point 69 degrees.
Lying in the humid subtropical zone, Tampa’s prevailing winds pull hot, moist air off the Gulf of Mexico and the western Caribbean Sea and push it ashore.  This leads to exceptionally hot and humid conditions, with frequent thunderstorms throughout the late spring and summer.  Basically, you can take a shower and, unless you are in an air conditioned building, never truly dry off.

Des Moines, Iowa – May 25 mean temperature 65 degrees, Dew Point 55 degrees
While Des Moines is at a much higher latitude than Tampa, the prevailing summer winds will still push hot humid air from the Gulf of Mexico.  However, at this time of the year, both cooler and warmer air masses are still battling for possession of the region, which leads to variability in the conditions until the summer pattern truly sets in.

Phoenix, Arizona – May 25 mean temperature 84 degrees, Dew Point 30 degrees
Phoenix is in a very hot, arid climate,  It’s too far west to be affected by Gulf moisture, and the Rocky Mountain complex to the west cuts off Pacific moisture.  I’ve heard it described as standing in front of a giant hair dryer…  This is not to say that Phoenix doesn’t get rain.  In fact, by late July, a monsoonal flow will come off the Gulf of California, leading to a rise in humidity and thunderstorms.  So, we’re hitting Phoenix at an ideal time for this test.

The wood samples for this test have been cut from plain old boards that have been acclimating in my shop for – I dunno – as long as five years.  I chose a series of samples from frequently used cabinet woods to give a good representation of what most woodworkers will use.  They include; maple, poplar, cherry, ash, red oak and a surprise board.

Yes, it’s a surprise to me, because I picked up what I thought was ash from my hardwood supplier. Got it for a steal – rough – at $1 a board foot. However, once I started planing it for this experiment, well, it’s not ash.  I’m going to guess from the photo that it’s red elm, but I could be way off base. Maybe one of my esteemed panelists will be able to put a better ID on it.  Hey, at least it’s a different species!

I planed, ripped and crosscut the boards to exactly 5” wide and 8” long.  I will be shipping the boards by US Postal Service tomorrow  (today is Memorial Day, an official federal holiday) to Marc and Dave with a copy of the steel ruler I used to measure the boards.  I took the time to ensure the measurements on each rule lined up to give as accurate a reading as possible.

I have asked both Marc and Dave to let the boards sit in their shops for two weeks, then measure the board samples on June 8 to see what kind of changes have occurred.  How will the boards react to the changes in temperature and humidity?

Stay tuned…

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Quick Poll

Sunday, May 24th, 2009

A Maloof RockerSam Maloof was an inspiration to many woodworkers.  Whether citing his humble beginnings, the organic lines of his projects or the joy he felt while in the shop, woodworkers have found few better examples to emulate than Sam.

His rocking chairs, regular chairs, tables and other pieces have caught the attention of collectors and museums around the world.

While his works are absoutley gorgeous, some woodworkers might see his projects as too involved, too challenging or just not their style.

This week, in honor of Sam, I’d like to know if you have ever built a Sam Maloof inspired project, and what you thought about the piece and the process.

Have you ever built a Sam Maloof inspired project?

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Sad news to report…

Friday, May 22nd, 2009

Renowned 20th Century Woodworker Sam Maloof Passes at age 93…

http://1.bp.blogspot.com/_NUAGLo7FUg4/SRwuqzan43I/AAAAAAAABmQ/43KjZY1CaFE/s400/sam-maloof-00.jpg

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Link of the week

Friday, May 22nd, 2009

Eastman Publishing’s Free Flag Case Plan

Free Flag Case PlanWith the Memorial Day weekend upon us here in the United States, it’s only fitting that I feature a project such as this one.

In the United States – as in many other countries – when a veteran of the armed forces passes, his or her casket is draped with the nation’s flag, which is presented to the surviving family members.

There are few honors for a woodworker greater than building a case for the family of a fallen serviceman or woman to display the flag.

This plan, provided for free by Eastman Publishing, gives woodworkers detailed instructions and drawings  for the construction of one of these cases.  The construction methods are easy enough for a beginning woodworker to tackle, and the measurements can serve as a starting point for more advanced woodworkers hoping to use different joinery techniques.

Unfortunately, many of my countrymen and women see Memorial Day as just an opportunity to get a day off work, take a vacation or enjoy a barbecue.  The deeper meaning – a commemoration of the ultimate sacrifice made by those who answered the call of service – should never be forgotten.

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