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3 -Phase Conversion of a Mini-Lathe

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3-Phase Conversion and Other Alternative Methods of Powering a Mini-Lathe

After much experimentation with different ways of powering my mini-lathe on a keep it going basis, I finally decided to go the whole hog and install an inverter and 3-phase motor – to give me variable frequency drive. This is the whole story.

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I.M. OUTAHERE	30/12/2018 08:05:20
1468 forum posts 3 photos	Just a quick update and photo of the enclosure , the rest of the upgrade is now just a put it back together affair so I won't bore you with that . I may be back later on with the tumbler gear modification once i work out how to do it !
Neil Wyatt	30/12/2018 10:20:01
19226 forum posts 749 photos 86 articles	Neat woodwork!
Niels Abildgaard	30/12/2018 12:30:01
470 forum posts 177 photos	Posted by XD 351 on 30/12/2018 08:05:20: Just a quick update and photo of the enclosure , the rest of the upgrade is now just a put it back together affair so I won't bore you with that . I may be back later on with the tumbler gear modification once i work out how to do it ! Cooling air for motor?
I.M. OUTAHERE	30/12/2018 23:17:20
1468 forum posts 3 photos	Cooling is via 12v automotive fan mounted inside the cabinet and the air is ducted up to the fan shroud of the motor , it then exits through a vent on the end of the motor enclosure. The fan is pwm controlled so i can set the airflow and this also keeps the fan a bit quieter as it doesn't run flat out . The vfd is also mounted inside the cabinet and the fan also gives some airflow for that as well .
I.M. OUTAHERE	19/01/2019 09:54:20
1468 forum posts 3 photos	Here is the mod for the tumbler gear - nothing spectacular but it works although neutral is a problem for some reason - maybe because the tumbler gears are odd sizes I don't know . There is so little clearance to work with so even though i have extended the linkage of the tumbler bracket ot still bunches up towards one side of the movement .

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