Guidelines to use a mortise machine
This is a heavy duty machine, which is generally the most costly equipment in some woodworker’s shop. Most woodworker will use it to make mortise and tenon joints. When cutting mortise joint this machine can be used along with a square chisel. When you invest in one of these machines it is important to read and observe the instructions which are included in the box.
The following tips will help you to use this machine:
First, remove the mortise machine from the box and arrange it on the table that you are planning to use it on. Place it in a level position and ensure that the legs of the table are set firmly against the floor.
Next, ensure that you set the chisels to run squarely with the table and corresponding to the fence. You can then install one of the bigger chisels. Position a level into it from every side to ensure that it is square on the table, if not you should adjust it accordingly. Repeat this process if you want to get the chisel equivalent to the fence.
After that, set it to the desired depth to cut and choose the right size chisel. You need to ensure that the hole which allows the escape of sawdust is positioned to the right or left and also that it is set to push the sawdust away from you.
You should practice to make your mortises from a bit of scrap wood. This will help you to get the cut exactly how you want it. As soon as you are satisfied that you can get the right cut, then go ahead and cut your wood.
In addition, always keep your machine clear of sawdust. Make use of a clean rag or an old brush to remove all sawdust from the restricted corners. Additionally, dust particles from the teeth which elevate and bring down the top of the machine.
Finally, you should occasionally examine the slider adjustments. General deterioration of the machine will cause the preset sliders to shift from the adjustment. Remember to double check the manual provided by the manufacturer to get any specific recommendations.
How to set the machine to get deep cuts
Whenever you are setting up the depth for a mortise, do not forget that the drill bit will precede the chisel casing which basically cuts square shapes. The projection of the indentations for bit cuts at the base of a mortise should also be given some consideration. If a mortise and tenon joint is covered with glue and then put together, some of the adhesive will be scraped off the sides and gets stuck at the base of the mortise. This unusual bottom area will give the glue someplace to head out.
As a result, when setting up for depth cut in a mortise it is important to think about the projection of the drill bit. It might be easier for you to draw lines to represent the base of the tenon along the side of the wood where you are going to cut the mortise. Next, you can position that piece of wood on the machine bed and then lower the chisel – no drill bit, until you get it a little below the design line and then secure the stop rod depth. Keep in mind that this particular setting will allow the tenon to fit completely in the mortise whilst providing a tiny bit of space for any waste glue.
Tips to lubricate and clean mortising machine
First, remember to adhere to the manufacturer instructions and recommendations and pay special attention to guidelines for the safety and operation of this machine.
Any contamination in the moving sections as a result of sawdust and additional dirt should be managed in order for the machine to function effectively. To get optimum benefit, it is best to lubricate and clean this machine prior to making modifications.
Typically, the power head on the mortising machine will move upwards and downwards on some type of slide, post or keyway, all built to allow the bit to travel accurately in a straight line up and down. Any contamination in these sliding areas will affect usability, precision and ultimately the life span of your machine.
The mortising machine probably will come with some type of geared drive device which rotates the power head down and up in reaction to the motion of the handle. When sawdust and other debris is cleaned out of the teeth this can help to keep your machine functioning efficiently. It is possible to use one of the cheap nylon brushes with the wooden handle to remove the dust.
Most of the time, the moving sections can be cleaned out using a rag or even an old brush. However, some stubborn contaminants might need some sort of solvent; in this case you have to ensure that any material used will be safe for plastic and paint. Try to avoid the use of caustic products. Immediately after cleaning up, dry all the areas thoroughly.
Even though almost any kind of clinging oil or grease can lubricate the moving sections, you should look at the dried graphite or perhaps Teflon based items that will dry easily after application. In addition, the dry lubricants tend not to bring in or maintain dust and might lengthen the times in between required cleanings.
All in all, the manual from the owner will provide guidelines on the parts which might or might not need lubrication and might even recommend appropriate lubricants.
Hopefully, the information provided above will help you to choose, use and take care of your mortise machine. You can find additional resources online if you need to learn more about this machine and also more tips on how to improve your mortise jobs.
