nojrd
New Member
Posts: 3
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Post by nojrd on Oct 14, 2013 21:31:46 GMT -8
Trying to figure out why the spindle on my 1013 is running hot. Background information is that I purchased a used machine that had a damaged spindle. Got a new motor spindle assemble from Oliver and identical bearing. I have yet to run a carving, but figure it would be inviting a meltdown to ignore the hot spindle issue. My understanding is that the bearing stabilizes the spindle against lateral force. the spindle slips into the bearing and the motor is then secured to the z-axis assemble. the mounting holes on the motor are a little over sized to allow the motor to move around a small amount to align the spindle in the bearing. Once the best alignment is found(least heat and noise) would mean the best position. I lightly clamped down the motor screws and ran the machine and made small repositioning in the motor to minimize noise and vibration, yet the spindle still got warm after a min or two . My concern is real world use would be really hot. Wondering if it would be better to apply loctite to the inner bearing and spindle to prevent slippage here.
Ideas? what do you all note about your spindle temp?
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Post by Greg on Oct 20, 2013 10:32:43 GMT -8
I never even paid attention to mine.
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Deleted
Deleted Member
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Post by Deleted on Oct 27, 2013 6:16:12 GMT -8
I haven't noted a problem, but never checked it to see how hot it is. I wouldn't think you'd have a problem, but call Dan at the factory and ask him the question.
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Post by retchiefe7 on Dec 27, 2013 9:23:34 GMT -8
What rpm are you operating at? What is the temp that you believe is too hot? The alignment of the motor to the spindle is important, the method you mentioned to use to align them would not seem to produce any accurate results, is there a better way to do this? Misalignment will produce heat. If you can answer some of these questions I would be happy to try and help to find a solution, you are right in be concerened about spindle bearing heat, a tell tale sign that something is wrong.
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Post by oliverman on Jan 2, 2014 13:55:33 GMT -8
The first thing I would want to know about the hot spindle problem is how many hours on the router bit. Over time, the bit will become dull and not cut as well thereby generating heating.
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Post by Greg on Jan 7, 2014 11:18:16 GMT -8
Right, a dull bit, a deep cut, and fast travel would cause a loaded motor condition.
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Post by mroliver on May 14, 2015 15:15:09 GMT -8
so i fund this out today the motor is the same spinning speed on low or fast lol. so its the X axis speed that changes. that kinda funny don't you think?
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Deleted
Deleted Member
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Post by Deleted on May 16, 2015 12:00:32 GMT -8
Not really surprising, the spindle motor is set up for single speed running and what you are trying to improve by going slow is the quality of the cut. So changing the x axis speed is what gives the bit more time to cut cleanly, not changing the speed of the bit.
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