Post by jaymon5 on Oct 11, 2013 16:26:28 GMT -5
Hey Guys,
I just wanted to forward a response the I got from David (Timberwolf tools) today.
Hello Jay,
I was really busy yesterday so I did not have a chance to respond to you. Here is what I wrote to a new MT-55cc customer last week:
The electronics that controls the motor has three functions. First, it slow starts the motor so there is not a jolt when you pull the trigger.....for safety reasons, and because it is easier on the motor over the long term. Secondly, it maintains a constant speed of the motor when load is applied. Since the motor is very powerful, the electronic module sends power to the motor and then takes it away when there is no load on the blade. So the oscillation is a moment of coasting in between sending power to the motor. Thirdly, the electronics senses when there is too much load on the blade (jam) and then takes the power away from the motor and the blade stops. If this happens, you need to release the switch, pull the saw back and re-start the machine.
So as you can see, the electronic module on this machine has a lot of work to do so you can operate your saw with lots of power when you need it at constant speed, while also being sensitive enough to stop the blade when it is overloaded. In nearly all applications, I would recommend running the saw at a speed of "6", unless you have an application where you are cutting a very soft material or plastic.
I continue to be amazed that folks on the Mafell forum spend time on this issue. Although the MT-55cc performs differently than some other Mafell saws (KSS-80Ec/370), there are good reasons while the control module behaves the way it does. Since the MT-55cc is a plunge saw and is designed to plunge and run at very low speeds for certain types of materials (even though it is usually used in wood), the control module was designed in a particular way to provide the best performance and safety. For woodworkers and cabinet builders, I think that it is best to just run it at "6" and enjoy it's outstanding performance. That is the approach of most customers and they are absolutely thrilled with the performance of this machine in many demanding applications.
Please note that I am telling you and everyone else the whole truth and nothing but the truth. All of the machines run exactly the same. As a matter of fact, as the President of Timberwolf Tools, I test 100% of the MT-55cc saws before they are shipped to customers at speeds of 6 - 1 and 1 - 6, and they all perform identically. As we have discussed, over time, the amount of "oscillation" is reduced as the motor seems to "break-in" (I suspect that the initial friction between new gears and new motor components is reduced over time, and the carbon brushes may "seat" better on the armature.) As one customer has observed, the amount of oscillation may be less when the vacuum is running. Perhaps the suction of the vacuum reduces the friction of the blade turning through air.....who knows?....or perhaps you just cannot heard the "oscillation" as much with the vacuum running.
Finally, keep in mind that the experts at Mafell AG know exactly how the MT-55cc (120V and 230V) operates. They have tested this machine thoroughly in Germany and I have been diligent about sharing any concerns that are raised in North America, including the video you sent to me.
Feel free to post my comments on the Mafell Forum. I really appreciate everyone's thoughts and comments, and of course we appreciate all of our customer's business and commitment to Mafell products......including yours!
Hope you have a great weekend ahead, David
David J. Powell, President
Timberwolf Tools
2 Wilderness Drive
PO Box 25
Newry, ME 04261
Work Phone: 800.869.4169
Cell Phone: 207.838.9318
Fax: 207.824.4170
E-mail: David@timberwolftools.com
www.timberwolftools.com
I just wanted to forward a response the I got from David (Timberwolf tools) today.
Hello Jay,
I was really busy yesterday so I did not have a chance to respond to you. Here is what I wrote to a new MT-55cc customer last week:
The electronics that controls the motor has three functions. First, it slow starts the motor so there is not a jolt when you pull the trigger.....for safety reasons, and because it is easier on the motor over the long term. Secondly, it maintains a constant speed of the motor when load is applied. Since the motor is very powerful, the electronic module sends power to the motor and then takes it away when there is no load on the blade. So the oscillation is a moment of coasting in between sending power to the motor. Thirdly, the electronics senses when there is too much load on the blade (jam) and then takes the power away from the motor and the blade stops. If this happens, you need to release the switch, pull the saw back and re-start the machine.
So as you can see, the electronic module on this machine has a lot of work to do so you can operate your saw with lots of power when you need it at constant speed, while also being sensitive enough to stop the blade when it is overloaded. In nearly all applications, I would recommend running the saw at a speed of "6", unless you have an application where you are cutting a very soft material or plastic.
I continue to be amazed that folks on the Mafell forum spend time on this issue. Although the MT-55cc performs differently than some other Mafell saws (KSS-80Ec/370), there are good reasons while the control module behaves the way it does. Since the MT-55cc is a plunge saw and is designed to plunge and run at very low speeds for certain types of materials (even though it is usually used in wood), the control module was designed in a particular way to provide the best performance and safety. For woodworkers and cabinet builders, I think that it is best to just run it at "6" and enjoy it's outstanding performance. That is the approach of most customers and they are absolutely thrilled with the performance of this machine in many demanding applications.
Please note that I am telling you and everyone else the whole truth and nothing but the truth. All of the machines run exactly the same. As a matter of fact, as the President of Timberwolf Tools, I test 100% of the MT-55cc saws before they are shipped to customers at speeds of 6 - 1 and 1 - 6, and they all perform identically. As we have discussed, over time, the amount of "oscillation" is reduced as the motor seems to "break-in" (I suspect that the initial friction between new gears and new motor components is reduced over time, and the carbon brushes may "seat" better on the armature.) As one customer has observed, the amount of oscillation may be less when the vacuum is running. Perhaps the suction of the vacuum reduces the friction of the blade turning through air.....who knows?....or perhaps you just cannot heard the "oscillation" as much with the vacuum running.
Finally, keep in mind that the experts at Mafell AG know exactly how the MT-55cc (120V and 230V) operates. They have tested this machine thoroughly in Germany and I have been diligent about sharing any concerns that are raised in North America, including the video you sent to me.
Feel free to post my comments on the Mafell Forum. I really appreciate everyone's thoughts and comments, and of course we appreciate all of our customer's business and commitment to Mafell products......including yours!
Hope you have a great weekend ahead, David
David J. Powell, President
Timberwolf Tools
2 Wilderness Drive
PO Box 25
Newry, ME 04261
Work Phone: 800.869.4169
Cell Phone: 207.838.9318
Fax: 207.824.4170
E-mail: David@timberwolftools.com
www.timberwolftools.com