keith Boutselis
Member
- Messages
- 208
- Location
- central florida
Well it seems I jumped the gun a little. The bearings don't seem to be perfect. probably because I discovered the blade is warped some but the bearings were not the problem. All these posts may help some one in the future I hope. here is what I discovered.
I kept reading things about 3 phase motors and converters until something I read made me remember something about one of my volt measurements. one of the outputs to ground was over 200v while the other two across ground were 125v. That made me realize the placement of that leg must be crucial. t3 was the highest leg across ground. I moved it to l3 on the motor. that made the saw spin smooth but backwards , so I switched L1 and L2 on the saw and that made it spin correctly. I can not believe how much I have learned.
The highest voltage leg in 3 phase must be placed properly to get smooth rotation because (I think) if that leg does not strike with power at the right moment it is actually going to fight the rotation. picture the motor trying to go through the three phases -- forward, forward, backward ---or forward, backward, forward. If the other two phases are wrong it will spin backwards but it will still rotate smoothly.
At least that is what i think I have learned. there is probably better tech. jargon to use.
I made 2 cuts with the warped blade. one in a 2x6 and the other in a 6x6 post I had. the saw didn't know the difference even with a bad blade. I could rip a 6x6 post down the center with this thing faster than my 3hp jet table saw could rip a 3/4" piece of pine.
Its kinda scary. Now I need to find a new blade.
I kept reading things about 3 phase motors and converters until something I read made me remember something about one of my volt measurements. one of the outputs to ground was over 200v while the other two across ground were 125v. That made me realize the placement of that leg must be crucial. t3 was the highest leg across ground. I moved it to l3 on the motor. that made the saw spin smooth but backwards , so I switched L1 and L2 on the saw and that made it spin correctly. I can not believe how much I have learned.
The highest voltage leg in 3 phase must be placed properly to get smooth rotation because (I think) if that leg does not strike with power at the right moment it is actually going to fight the rotation. picture the motor trying to go through the three phases -- forward, forward, backward ---or forward, backward, forward. If the other two phases are wrong it will spin backwards but it will still rotate smoothly.
At least that is what i think I have learned. there is probably better tech. jargon to use.
I made 2 cuts with the warped blade. one in a 2x6 and the other in a 6x6 post I had. the saw didn't know the difference even with a bad blade. I could rip a 6x6 post down the center with this thing faster than my 3hp jet table saw could rip a 3/4" piece of pine.
Its kinda scary. Now I need to find a new blade.