Setting Jointer Knives

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Setting jointer knives appears to be universally every woodworkers worst duty. When I talk to woodworkers, the one thing they hate doing most is setting jointer knives (although many also hated setting planer knives, but that`s another article).

One of the biggest problems is many did not know what height the knives should be set at. Many woodworkers believed that jointer knives should be set at the exact height of the outfeed table. Which in theory would be correct but in practice is not the best idea. I even had some woodworkers who adamantly believed the jointer knives should be even with the infeed table. This is the WORST thing you can do if you EVER want to get straight, flat boards.

If you set jointer knives BELOW THE LEVEL OF THE OUTFEED TABLE, the boards you run through your planer will be bowed like the lower runners of a rocking chair. The more you run them through the jointer the more bowed they will get ... to the point, the only way to correct the bowing is to mark a straight line down the length of the board and run the board through a table saw - freehand. THEN adjust your jointer knives correctly and start all over again runing the board through the jointer.

 

Restoring Antique Rocking Chair

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Restoring antique furniture is not for the faint of heart !!!
If you are an avid watcher of the television show The Antiques Road Show or other similar shows, you will know that it is a BIG no, no to do any work, as in re-finishing, re-building or re-storing to old antiques. Apparently collectors would rather have antiques that are in what ever shape they are, good or bad and they do not want anyone to alter the original object. In the event an item is re-finished or re-built the value plummets like lead balloon ... and I can understand that. What I don't understand is when I see very nice old furniture that is in terrible shape, that no one will do anything with because it "might" de-value the piece of furniture. In many cases some lovely old furniture has come un-glued, pieces missing or just simply badly abused over the millenia and now it needs some work to put it back together and maybe even a re-finish job to make the piece as close to it's original shape as possible.

The truth is, there are hundreds of furniture restores all over the world who fix, repair and re-finish old and antique furniture every day. I believe these restores do a service by preserving these valuables by making them able to withstand the next 100 years. The question I had, was what to do with an antique rocking chair that I was commissioned to restore.

Bosch Saw GCM12SD Review

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One of the first things we noticed about the Bosch saw during initial testing was the vast difference in its appearance against the other saws available for the woodworking market. The company has chosen to integrate a 2-axis multi joint arm system with 12 sealed precision ball bearings which results in awesomely smooth traveling and fine control. Bosch has taken the sliding rail system and gone ballistic with its implementation bringing out a product that can, in our opinion, easily handle 1/32" accuracy. With its sealed ball bearings, you can forget about its performance degrading or the sawing becoming any less smooth over time. The saw also comes with an integrated "glide damper" allowing woodworkers to manoeuvre to different glide actions increasing or decreasing resistance, but the default mode is just fine too. Another key advantage of the kit is its unbelievable space saving capacity: it saves up to 12" of workspace, its arm flush folding into the back of the saw so no matter how small or cramped your shop is you'll always have space for this beauty.

Using a Stacked Dado Set

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Woodworking is filled with "special tools" that are only good for one or two jobs. The only problem is they do such a good job for their special design that using alternatives can be tedious at best. Such is the case with dado blades. They are only good for taking out huge chunks wood, but in most cases trying to do this other ways takes so much time, most of us would not bother.

There are basically two kinds of dado blades. The Stacked Dado set is the most popular because in most cases is does the best job of cutting dados and rebates, but there is also something called a dado wobble wheel blade which can also be used for making dados and rebates. The problem with the wobble wheel is that the bottom of the cut is arced somewhat, and more arced as the dado cut gets wider. The problem with this arcing effect is it makes for a less than perfect fit.

Cutting dados using a stacked dado set is not difficult, at least seemingly. The idea with any dado cut is that the piece that is to be fit into the dado cut should fit snugly in order to make it structurally sound and for the glue to work as best it can. It is IMPERATIVE that you make test cuts with your dado set before making the final cuts. If you don't you risk making cuts that are too large, and then you will a whole bunch extra work trying to make up for the mistake. The first time you omit the test cut will be the last time you omit it.

 

he best way to figure out the width of the cut you need to make is to measure the thickness of the shelf or other structure that you will be inserting into the dado cut. BUT DO NOT take this as the last measurement, make the test cut, try our the fit and work from there. Using a tape measure, will, in most cases not be sufficient enough to get the fit you will need, You will need a more precise measuring instrument.
Selecting a dado set can be agony for many woodworkers. There are many to choose from of varying qualities and with different features ... here are some of the things to look for ...