Mind blown! I am an old dog, and occasionally I watch a video and learn a new trick. I ran a lathe or two in my day and I never knew these features existed, let alone all are on one amazing machine. I am impressed by all four features. I am most impressed with the dynamic gear/speed change from the apron, followed by the rapid traverse, then the rapid/hydraulic tail stock, and finally the constant SFPM in both manual and auto cross slide.
I have had the pleasure of seeing this lathe in person it is in immaculate condition and it is like a Cadillac of lathes. More importantly I had the honor of knowing Steve, he will be sadly missed and fondly remembered always. Great presentation Jim & Derek
Thank you SOOO much for sharing this. I was aware of constant surface speed, but never knew the extent of the controls on the carriage! I hope more people will learn about and appreciate this; such unmatched engineering, accuracy and brute force!
Constant sfm on a manual lathe - thats really cool. It makes me think different about american engineering. Don't know, if other manufactures from other countries also had this on their lathes at this time. The hydraulic tailstock is also a nice feature.
American’s built a plane in the 60’s that could fly over Mach 3. They also invented CNC machining. Even before that the Moore Jig Borer built in the 1950’s was accurate to 1 Micron in every axis and squareness. The American designed Bridgeport Milling machine has been the most copied design in machine tool history. Even the Germans are wowed by Moore Machine Tools.
@@potlimit2002 CNC machining is a point (i am a cnc mechanic), but the airplane is not. Because the us want to spy over other countries, they need to develop an airplane, what is in every aspect inefficent as possible. It was part of their foreign politics. The Sovjets build airplanes which are small, fast and agile, because they only had a decentralized air defense force at this time. Their planes were faster, cheaper and much more reliable to american pendants (p.e. the F104). What i want to say - military development isn't a good measuring instrument, because one development on one side leads to progress on the other side. So both sides are leading in technology at one time, but never over all. And ofc, in the past,the us gifts the world a lot of good inventions and was great in technology and mechanics.
Paul, the constant surface speed is simply a varying voltage sent to the VFD that replaced the original motor-generator set and its tube-based circuitry. There is a potentiometer inside the apron that is geared to the cross-slide, and as its resistance varies, a small circuit board creates the signal for the VFD which tries to keep the sum of spindle speed x radial position equal to a constant, that is selected by the user via a knob on the headstock. In the video at around 4:42, I adjusted that knob, and the surface speed meter (in surface feet per minute) changes along with the spindle speed. This circuit does not have any way to reverse the spindle; it just changes the frequency. The original circuitry was missing when Steve acquired the lathe, so we adapted the original potentiometers' signals using a custom circuit to replicate the functionality. The rest of the lathe functions are managed by relays, solenoids, and motors, driven by switches and the main speed potentiometer on the apron, just as the original circuitry did.
Good quality machine strong casting , you need a good tool post American or Italian , you loosed your time and productivity look old videos how AMERICAN workers and women was turning in old time ,no was CNC MACHINE ,every vary has jobs and working more efficient then now . Greeting from CANADA.
Mind blown! I am an old dog, and occasionally I watch a video and learn a new trick. I ran a lathe or two in my day and I never knew these features existed, let alone all are on one amazing machine. I am impressed by all four features. I am most impressed with the dynamic gear/speed change from the apron, followed by the rapid traverse, then the rapid/hydraulic tail stock, and finally the constant SFPM in both manual and auto cross slide.
thank you so much for sharing this wonderful machine.....cheers from Florida, Paul
Monarch made such beautiful machines. Sorry for your loss, but it's great to see that you're taking over care of the machine for him.
What a beautiful machine, you are a fortunate man to be the current caretaker.
I'm not sure what more you could ask for in a manual lathe. Looks incredible.
I have had the pleasure of seeing this lathe in person it is in immaculate condition and it is like a Cadillac of lathes. More importantly I had the honor of knowing Steve, he will be sadly missed and fondly remembered always.
Great presentation Jim & Derek
Beauty!!!!! Greatings from the netherlands.
What an amazing machine! I'm especially impressed with the tailstock and the constant surface speed feature.
Thank you SOOO much for sharing this. I was aware of constant surface speed, but never knew the extent of the controls on the carriage! I hope more people will learn about and appreciate this; such unmatched engineering, accuracy and brute force!
wow, I never knew a non CNC lathe could have constant SFPM control......beautiful.......
That hydraulic tailstock is pretty nifty. I bet I would smash a centerdrill or two by carelessly using the high speed to approach.
Amazing. Thanks for showing.
I had a chance to buy one of these for around $8K not too long ago. After seeing this video, I regret not buying it.
Constant sfm on a manual lathe - thats really cool. It makes me think different about american engineering. Don't know, if other manufactures from other countries also had this on their lathes at this time. The hydraulic tailstock is also a nice feature.
American’s built a plane in the 60’s that could fly over Mach 3. They also invented CNC machining. Even before that the Moore Jig Borer built in the 1950’s was accurate to 1 Micron in every axis and squareness. The American designed Bridgeport Milling machine has been the most copied design in machine tool history. Even the Germans are wowed by Moore Machine Tools.
@@potlimit2002 CNC machining is a point (i am a cnc mechanic), but the airplane is not.
Because the us want to spy over other countries, they need to develop an airplane, what is in every aspect inefficent as possible. It was part of their foreign politics. The Sovjets build airplanes which are small, fast and agile, because they only had a decentralized air defense force at this time. Their planes were faster, cheaper and much more reliable to american pendants (p.e. the F104). What i want to say - military development isn't a good measuring instrument, because one development on one side leads to progress on the other side. So both sides are leading in technology at one time, but never over all.
And ofc, in the past,the us gifts the world a lot of good inventions and was great in technology and mechanics.
Incredible lathe
Pretty slick machine! They don'r make them like they used to.
Regarding the CSS - if you go past center, does the spindle reverse?😉
Paul, the constant surface speed is simply a varying voltage sent to the VFD that replaced the original motor-generator set and its tube-based circuitry. There is a potentiometer inside the apron that is geared to the cross-slide, and as its resistance varies, a small circuit board creates the signal for the VFD which tries to keep the sum of spindle speed x radial position equal to a constant, that is selected by the user via a knob on the headstock. In the video at around 4:42, I adjusted that knob, and the surface speed meter (in surface feet per minute) changes along with the spindle speed. This circuit does not have any way to reverse the spindle; it just changes the frequency. The original circuitry was missing when Steve acquired the lathe, so we adapted the original potentiometers' signals using a custom circuit to replicate the functionality. The rest of the lathe functions are managed by relays, solenoids, and motors, driven by switches and the main speed potentiometer on the apron, just as the original circuitry did.
Good quality machine strong casting , you need a good tool post American or Italian , you loosed your time and productivity look old videos how AMERICAN workers and women was turning in old time ,no was CNC MACHINE ,every vary has jobs and working more efficient then now . Greeting from CANADA.