Wood Working

Building A Homemade Wood Lathe

Anybody else out there wanting to build a homemade wood lathe? I’ve had the bug for over twenty years ever since the first time I saw Roy Underhill use one on his show “The Woodwright’s Shop”.

Roy is pretty shy about revealing the details of his treadle lathe. In his many books published in the last 20 years, a couple have featured articles on the lathe but without much-needed details.

A couple years ago I found myself going through another round of homemade wood lathe desire. I decided the only way around it was sit down and design one then build it. . . and I did just that!

It may have been sour grapes, but I told myself I was glad that Roy didn’t publish plans for his lathe. It was too short for me anyway!

With the work position idea in mind, I measured the distance above the floor the work would need to be spinning in order not to cause too much strain on my back. This was the first dimension for my project.

I wanted it to be able to turn at least 36-inch long work, have about 9 inches of swing clearance and make it fairly light weight to be able to move it by myself. I also decided I wanted to try and make it as economical as I could.

With these items in hand, the sketching started. Soon I switched over to scaled drawings to be able to better calculate the proper dimensions. I was surprised how quickly the homemade wood lathe design came together after that.

The large support pieces of the lathe were rather simple to design, but the details like bearing and pulley locations were another matter. I spent a lot of time scratching my head at this point.

Many weekends were spent trying to calculate the sizes and locations of the moving parts. Only after I actually ordered some of the stuff I couldn’t make myself, did I start to progress again.

I ordered all my bearings for the pulleys, flywheel and headstock from the same place. The thrust bearing in the headstock would be there to help counteract the compression forces from clamping the workpiece between centers.

When they arrived, things started to move again. Their locations were scaled into the drawings. I had a welder take a piece of one-half inch round steel stock and put two 90-degree bends in it on one end for a flywheel crankshaft.

By some manner of calculation I had concluded that an off-set dimension of one and one-half inches would provide both torque and speed in the right amount. Part of that calculation also took into consideration the height to which I would need to lift my leg in order to operate the treadle on my homemade wood lathe.

Once I was satisfied with the plans and had all my parts in hand, construction commenced. For the next month and a half I spent every weekend glued to my homemade wood lathe project.

More than several times work halted to reconsider my plans. In fitting the pieces together sometimes I would find that my measured drawing did not allow for proper clearances for example and had to be revised.

As I neared the end of almost four months, my homemade wood lathe was finally finished. It had been the single most challenging and frustrating project I had ever tackled and yet one I will never forget!


Basic Office Chair Parts and Where to Find Them

Are you shopping for chair parts that needed replacement? No matter what type of office chairs you use at home or in the office, you can easily locate good quality chair parts to repair broken office chairs. Save up on repair fees. Be wise in choosing and shopping for the parts you need by getting a good grasp of different office chairs’ basic parts and knowing how they work.

An office chair is specifically designed for the workplace. It may not be receiving much attention but it is actually an essential part of any office, wherever located. An office chair helps you operate and conduct your business affairs comfortably and effectively. Office chairs of good quality can last for many years. Should the time come that they get broken or damaged, think twice before making a new purchase. You can find office chair parts easily online at good prices.

Different types of office chair include swivel, leather, cushioned, reclining, and ergonomic office chairs. Some manufacturers specialize in one kind of chair while others offer different lines of chair to meet your specific needs. Office chair parts are not entirely unique with any type of chair you choose, although some parts may be exclusive to one chair or brand only. Read on for an overview of basic office chair parts.

Some office chair parts common to most types are:

Mechanism – Located underneath the seat, the chair mechanism is perhaps the most complex part of an office chair. Fitted with buttons or levers, it controls the adjustment capabilities of a swivel office chair. The mechanism also links the stem with the main frame. Chair mechanisms come in two types: the manual and gas types. If the mechanism can be unbolted, it can be replaced when damaged. Otherwise, a broken chair can no longer be restored.

Cylinder or post. This is the long bar that supports the entire seat. For office chairs with gas mechanism, the term gas cylinder is used. For manual operated chairs, the bar is called a post. Usually, the bar consists of two separate pieces connected together by screws. It is easy to get a replacement for this part.

Base – The base is the part of the chair touching the floor surface. Coming in different shapes and designs, it plays a crucial role of evenly distributing weight. Some chairs have four arms extending from the base and others have six. The arms are made of either metal or plastic. The entire base is held together by tensions or screws.

Casters and caster wheels – The most common office chairs today have wheels for easier movement. Casters are the frames wherein these wheels are housed. They are attached to each arm extending from the office chair base.

Cover or cushion – Office chair covers, which are available in a wide array of designs and colors, can be fitted on any type of office chair for additional comfort and style. Cushions especially help alleviate the stress and tension the back receives upon sitting in one position for long hours. Manufacturers make them available at attractive prices.