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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Spindle temperature
I ran my mill for 16 minutes at 3,000 RPM (I get email when my CNC
jobs complete). It was machining a mold prototype for a kids toy. We will need to cast 18 of them that in wax, and the mold will be made from Aluminum. But I digress. After I finished running for 16 minutes, I measured a few temps: *) Inside the shop - 86 degrees *) On the variable speed transmission on top -- 105 degrees *) On the low part of spindle (at the QC-30 collar) 115 degrees. I am not sure if I fully believe this last measurement. The bottom of the spindle feels warm to the touch, I can hold it indefinitely, but it is not comfortable. Would you consider this temp rise to be excessive? i |
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