The preparation of this thesis aims to complete the rehabilitation of CNC mini lathe and find the breakpoint to CNC mini lathe. It appears that the results of the mini CNC lathe operation rehabilitation of stepping motor. Lee targets head x axis dotkru, z z, x slider in the middle of the live Center end of the motor check and insert the lubrication system. Change control section, a new set of knives, Fort, then put to the test the actual implementation can be used normally, and from finding a breakpoint condition, mini lathe, Gifu recovery CNC found that price depreciation a mini lathe and CNC machine the new year 20 197,987 amount is Baht depreciation rates section the machine rehabilitation 5 years depreciation in the amount of baht 9363, which is according to the purpose for which the project group placed.
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