Karl_T
Cast Iron
- Joined
- Jun 13, 2008
- Location
- Dassel,MN,USA
I recently purchased my second 10EE...
Machines Used | Monarch 10EE Toolroom Lathe with Taper Attachment and Chucks
20 years ago I went VFD with backgear and 5 hp three phase motor. Biggest job in last 20 years is adding way oil. That is why I only considered another 10EE for my second home. Allows shipping all chucks and tooling between sites as needed.
Machine work to fit the backgear is quite a large job, but doable.
I am considering purchase of a 900 RPM 10hp 3 phase motor and driving it with a VFD with no back gear. A gearing of 3:2 will give spindle speed range of 40 to 2400 with motor speeds of 60 to 3600. With today's VFDs will have 2/3 hp at bottom speed - plenty for threading. Top motor speed of 3600 is plenty safe.
My google foo is poor - surely this has been done before. Comments please.
I am NOT interested in saving the antique DC drive. Any purists here have a chance to buy this at a fair value.
Karl
Machines Used | Monarch 10EE Toolroom Lathe with Taper Attachment and Chucks
20 years ago I went VFD with backgear and 5 hp three phase motor. Biggest job in last 20 years is adding way oil. That is why I only considered another 10EE for my second home. Allows shipping all chucks and tooling between sites as needed.
Machine work to fit the backgear is quite a large job, but doable.
I am considering purchase of a 900 RPM 10hp 3 phase motor and driving it with a VFD with no back gear. A gearing of 3:2 will give spindle speed range of 40 to 2400 with motor speeds of 60 to 3600. With today's VFDs will have 2/3 hp at bottom speed - plenty for threading. Top motor speed of 3600 is plenty safe.
My google foo is poor - surely this has been done before. Comments please.
I am NOT interested in saving the antique DC drive. Any purists here have a chance to buy this at a fair value.
Karl