There are numerous concerns that you might have as you rip boards on a table saw. The concerns will most certainly be related to your safety as a user. Among the concerns, the chiefest among them would be the concern emanating from kickback. Asa safety precaution, saw manufacturers need to ensure that they incorporate some safety measures to enhance the safety of the user. There are several measures that have been employed by different manufacturers. Among the safety features that manufacturers have come up with is Anti-Kickback Pawls.
When a person is using the saw, they will need to pay attention to safety precautions, regardless of the fact that the manufacturer has safety features installed on the saw. For instance, there is no way a user should avoid using safety glasses and ear protection when using the saw. Additionally, a user will need to use the proper clothing, maintain a safe distance with the saw blade and stand safely so that the risk of injury is greatly reduced.
As you continue reading, let’s examine the cause of kickback; A saw blade may be pinched by two sections of a board after being ripped apart. The pinching occurs from the boards moving towards each other immediately they are severed on a table saw. This is also the case when someone is using a radial-arm saw. Most often, the boards will clamp on the saw blade and then be propelled in the direction of feeding. This propelling is attributed to the spinning motion of the blade. However, for the clamping to occur, the pinch must be strong enough. What must be noted is the fact that the force at which it is propelled can be considerably strong, making kickback a dangerous thing. Apart from being extremely dangerous at times, kickback is not predictable by any means. This unpredictability is the driving force behind manufacturers’ willingness to install safety features for the minimization of the risk. As already implied, there are numerous ways of reducing the risk as provided for by the manufacturers like the use of a riving knife.
Another very effective innovation that has been used in reducing kickback is the anti-kickback pawls. Anti-kickback pawls are two spring-loaded metal grabs whose teeth are very aggressive. These two metals can never allow the two pieces of wood to be propelled back since the metal pawls grab the wood when there is a problem. When there is no problem, the two will simply glide over the board that is being cut at both sides of the blade. Their mounting is very strategic since they are just above the blade and their teeth will only dig into the wood if the motion is reversed. Asa consequence, the user will always be safe from the danger posed by kickback.
The use of the pawls is without any regret in terms of guarding you against dangers posed by kickback. So long as you intend to have through cuts, pawls are you perfect protection fro kickback. However, howbeit on rare occasions, you may not be able to use the pawls. A case in point s when you may want to cut rabbets. However, in most applications, the pawls are welcome.
As with many things in life, there is a need for precaution when using antikickback pawls. Since the basic operation of the pawls is to ensure that there is no reverse movement of the board, you can never use pawls to cut halfway. When you use pawls, you will have to rip the board to the end. This is because they cannot allow any reverse movement because their mechanism is meant to prevent the same. Therefore, the user must be ready to cut all the way for there is not backing up.
Other times, the user may find it useful to use some sanding before the boards can be used. At times, the teeth on under the anti-kickback pawls can make slight cuts and make the surface uneven or even rough. These lines will be visible and will require sanding. These are the only things you need to take care of as you use anti-kickback pawls. Asa consequence, the use of anti-kickback pawls should be emphasized.