Added temperature gauge for mini lathe.

[SmithDoor]

I add a temperature gauge to my mini lathe.
The mini use a variable speed motor. On low speed the motor does cool very well . So need watch temperature at low speed heavy cuts.

The max motor is 105°C.
Less the temperature to outside of witch is 15 to 20°C.

I set red mark at 80°C just for a little buffer.

Use HVAC aluminum tape for Capillary blub. The tape is good to over 140°C.

If I have problem with heat I will add a flange mount fan.
Then have temperature gauge incase the cooler fails

See photos

Dave

 

[SmithDoor]

This after the mini lathe ran for a ½ hour .
It nice seeing temperature the motor is running not after I see smoke.

Dave

 

[SmithDoor]

This only need on a wide range variable speed motors.
The cost to save motor was under $14.00 and about 1/2 hour installing. No electrical just a good tape to motor.

Most motor running on hight does not need any type of gauge. Seen more on mini lathes and mills variable speed motors. It about 20 to 1 or 2,000 RPM to 100 RPM.

I did know problem of mini lathes motors till October 2023.
A new one for me

Dave

 

[SmithDoor]

Here is the technical data on the aluminum tape for anyone interested .
Make Insulation easy.

Dave