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View mahdee's profile

Need electrical information.

by mahdee
posted 12-01-2018 01:36 PM


6 replies so far

View splintergroup's profile

splintergroup

2696 posts in 1616 days


#1 posted 12-01-2018 02:37 PM

Induction motors don’t react well to speed control outside of a narrow range (do a search on induction motor speed control to see the problems and options).

A decent 1/2 speed controller will cost more than the lathe. Best bet is to find a lathe that uses a real variable speed gearbox or find a motor that can be easily controlled (search LJs for treadmill motors).

View mahdee's profile

mahdee

4290 posts in 2161 days


#2 posted 12-01-2018 02:41 PM

Thanks. I want to be able to control it down to somewhere near 5 or 700.

-- earthartandfoods.com

View TheFridge's profile

TheFridge

10858 posts in 1880 days


#3 posted 12-01-2018 03:01 PM

Ditto. Speed controls are no nos for induction motors. You have to modify pulleys or get a slower motor of the same frame size.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View mahdee's profile

mahdee

4290 posts in 2161 days


#4 posted 12-01-2018 03:12 PM

Thanks… Probably will return the darn thing.

-- earthartandfoods.com

View WhyMe's profile

WhyMe

1153 posts in 1955 days


#5 posted 12-01-2018 04:01 PM

If you can find a cheap lathe on craigslist you can modify it using a DC motor and a DC variable speed controller. There are some good YouTube videos on doing the mod.

View mahdee's profile

mahdee

4290 posts in 2161 days


#6 posted 12-01-2018 07:02 PM

Thank you. I did look for a used speed dial panel on eBay but no luck yet. I noticed I can do 90% of my work on this and all I have to do is transfer the work piece to my other lathe.

-- earthartandfoods.com

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