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I bet they send you a 4000 instead. If I remember right, that's what happened to me.
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__________________________________ No one lives forever, the trick is creating something that will. __________________________________ |
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where did you order it from?
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According to Reliable, the 4000 is a new and improved version of the 3000. The difference is that there is no buzzing at slow speeds with the 4000, and it supposedly has better low end torque. ( I don't know how that's possible, 'cuz a true servo motor is a constant torque device.) I have both, and I think they both work just fine. The 4000 only has speed control down to 2100 RPMs, which is about 40% of its top end speed, so if you really want to go very, very slow order the 50MM motor pulley. That will make the slowest speed around 800RPMs. Try it out. If it doesn't work the way you want send it back.
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__________________________________ No one lives forever, the trick is creating something that will. __________________________________ Last edited by DanTwoLakes; 10-08-2010 at 09:54 AM. |
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Last night i mounted it to the table and ran across 3 problems. First is that I need a smaller belt - simple enough to cure. Secondly, I can't figure how the rod fits to the motor. Third, it appears I'll have to move the pedal over as well.
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Go to a hardware store, not a place like an auto parts store or a power center that repairs snow throwers, etc. You shouldn't have to pay more than $5 for the belt. What size do you need, I might have one that will work. You can have it for the postage.
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The smallest one I have is 43", sorry.
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__________________________________ No one lives forever, the trick is creating something that will. __________________________________ |
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No, the belts on my machines are 41". Each individual sewing machine and table combination will make the belt length slightly different. There is an adjustment you can make if you loosen the nuts on the threaded rod at the front of the motor just above the yellow knob. For every 1/2" you loosen the nuts to let the motor drop down, you'll use a 1" larger belt.
Do you know how to measure for belt size? Measure from the center of the motor's shaft to the center of the shaft the pulley is mounted on on your sewing machine. Say that's 13". Double it to make 26". Then measure the diameters of the pulley on the machine and the pulley on the motor. Say the machine has a 5" pulley and the motor has a 4" pulley. Multiply the two diameters by PI, divide each one by two and add the three dimensions together. In this case, 3.1417 times 5 divided by two equals 7.85 inches and times 4 divided by two equals 6.28". Add 26" plus 7.85" plus 6.28" and you get 40.13" You'd use a 40" belt in this example.
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__________________________________ No one lives forever, the trick is creating something that will. __________________________________ Last edited by DanTwoLakes; 10-09-2010 at 08:05 AM. |
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