Video showing 1941 Monarch 10ee after VFD Conversion

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Darkshadow

Plastic

Joined

Feb 6, 2012

Location

Oklahoma

• Feb 20, 2013

• #1

Hello, This is just a Short video showing my lathe after I replaced the MG with a Hitachi WJ200 and a Blue Max 5HP motor. The Gearbox is connected with a Pump Mount and the Motor was unchanged. I made a new Shaft that goes thru my gearbox and connects to the motor with lovejoy couplings.

1941 monarch 10ee vfd - YouTube

 

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Peter.

Titanium

Joined

Mar 28, 2007

Location

England UK

• Feb 21, 2013

• #2

Lovin that. I like how you've kept the original controls. Thanks for putting up that video!

 

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Old fart

Aluminum

Joined

Feb 10, 2013

Location

Rapid City SD

• Feb 21, 2013

• #3

shadow what serial number is your machine?

 

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Darkshadow

Plastic

Joined

Feb 6, 2012

Location

Oklahoma

• Feb 27, 2013

• #4

The Serial Number is 10445. Made 8-1941

 

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Alain

Aluminum

Joined

Mar 12, 2005

Location

New Brunswick, Canada

• Mar 4, 2013

• #5

What VFD did you use? Is it single phase in? Did you need braking resisters?

 

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Peter.

Titanium

Joined

Mar 28, 2007

Location

England UK

• Mar 5, 2013

• #6

I believe it's a 3-phase in inverter.

 

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Darkshadow

Plastic

Joined

Feb 6, 2012

Location

Oklahoma

• Mar 6, 2013

• #7

The Drive is a Hitachi Inverter WJ200 055LF. It is a 3-phase inverter, but there are instructions on wiring for single phase on Hitachi's website. You don't need the extra braking resistor but you can only stop with in 4-5 seconds. With the braking resistor I think I have is set up to stop in 1-1/2 seconds which is fine for me.

 

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Alain

Aluminum

Joined

Mar 12, 2005

Location

New Brunswick, Canada

• Mar 7, 2013

• #8

One second would be nice.

 

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atomarc

Diamond

Joined

Mar 16, 2009

Location

Eureka, CA

• Mar 8, 2013

• #9

In the video it appears the drive is located in the bowels of the lathe...just sitting their in its 'almost' open enclosure. Is that compartment sealed...looks like the drive would be in harms way from chips, coolant or whatever.

Stuart

 

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Old fart

Aluminum

Joined

Feb 10, 2013

Location

Rapid City SD

• Mar 8, 2013

• #10

shadow ......our lathes were very close to each other coming off production. July 1941 ser 9928

 

rklopp

Diamond

Joined

Feb 27, 2001

Location

Redwood City, CA USA

• Mar 9, 2013

• #11

DO NOT CONTINUE TO RUN THAT LATHE WITH NOTHING IN THE CHUCK! (Unless you'd like a jaw in your or a bystander's head.) The chuck's scroll can spin relative to the chuck's body duty acceleration or deceleration and release the jaws. I've seen close calls.

 

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Darkshadow

Plastic

Joined

Feb 6, 2012

Location

Oklahoma

• Mar 9, 2013

• #12

rklopp, thank you. I will chuck something in the jaws.
Old fart, does your lathe have a inline exciter or have you converter to vfd?

 

Peter from Holland

Diamond

Joined

Jan 15, 2005

Location

The Netherlands

• Mar 10, 2013

• #13

rklopp said:

DO NOT CONTINUE TO RUN THAT LATHE WITH NOTHING IN THE CHUCK! (Unless you'd like a jaw in your or a bystander's head.) The chuck's scroll can spin relative to the chuck's body duty acceleration or deceleration and release the jaws. I've seen close calls.

Click to expand...

That risk is greatly reduced by the use of that VFD The speed gets up more graduatly as with direct current

peter from holland