We had an old 20 hp Okuma slant turn lathe that they replaced at work with a Haas ST25. We kept telling them it wouldn't end well, that there was a reason the Haas was less than 1/2 the price of a new okuma. Well it was because Haas lies on HP numbers (motor name plate FLA wasn't anywhere close to what 30hp FLA is on a chart) and the machine also weight much less than a 20 hp okuma, by over 2000lbs. The lathe screamed in a cut so bad people in the shop from over 200 feet would come to see it. A part that ran for decades on the old okuma at twice the DOC with no vibration/chatter. The SSV option did resolve the squalling but not the lack of production
@@TheSuntravel Honestly we would have been money ahead to recontrol it with a centroid oak. We asked to do it as it was a solid lathe. The control was having issues however but what do you expect from a 1988 machine.
Ich danke dir. Das war wie immer super. SSV rettet sehr viele Werkstücke von mir Auch wie schnell du es umgesetzt hast super.....Von meiner Nervigen Idee das auch haben zu wollen an meiner kleinen Hobby Maschine bis zu dem das du mir den Spaß geschickt hast. Unter einer Woche . Manchmal entstehen zwar etwas glänzendere Stellen aber mit ein bisschen Stahlwolle kann man das schnell fixen..... Mega tausend danke nochmal. Stephan
Uwe another great idea and video from you. Do you think this technique will be effective on wood, where tool push-off is common? Anxious to try it when available. Thanks
Well done, this is a feature in some recent high end turning centers. I wonder if it's possible to add a sensor on the turret or tool holder that provides the resonance feedback to auto tune the SSV duration and variation.
In theory yes, since both can be adjusted on the fly, but it will need an additional board to convert the resonance feedback in a readable format for CNC12
This isn't new technology, of course, but still very impressive to see it in action! I didn't think it was possible to turn such a long overhang without vibrations! Does the feed rate stay constant or does it also change with the spindle speed?
Yes, SSV is an option on some industrial CNC machines, but maybe new at DIY CNC. In this case I used G99 Per Revolution Feed. Centroid CNC is fast enough to use SSV even while threading.
Nice 😃👍 Thanks for sharing. 👍👍
We had an old 20 hp Okuma slant turn lathe that they replaced at work with a Haas ST25. We kept telling them it wouldn't end well, that there was a reason the Haas was less than 1/2 the price of a new okuma. Well it was because Haas lies on HP numbers (motor name plate FLA wasn't anywhere close to what 30hp FLA is on a chart) and the machine also weight much less than a 20 hp okuma, by over 2000lbs.
The lathe screamed in a cut so bad people in the shop from over 200 feet would come to see it. A part that ran for decades on the old okuma at twice the DOC with no vibration/chatter. The SSV option did resolve the squalling but not the lack of production
sure, nothing beats a rigid machine, but imagine what kind of cutting rates you could run on the Okuma with SSV on long parts
@@TheSuntravel Honestly we would have been money ahead to recontrol it with a centroid oak. We asked to do it as it was a solid lathe. The control was having issues however but what do you expect from a 1988 machine.
That's pretty convincing! Looking forward to playing with this when it's released. Nice work!
Ich danke dir.
Das war wie immer super.
SSV rettet sehr viele Werkstücke von mir
Auch wie schnell du es umgesetzt hast super.....Von meiner Nervigen Idee das auch haben zu wollen an meiner kleinen Hobby Maschine bis zu dem das du mir den Spaß geschickt hast.
Unter einer Woche .
Manchmal entstehen zwar etwas glänzendere Stellen aber mit ein bisschen Stahlwolle kann man das schnell fixen.....
Mega tausend danke nochmal.
Stephan
Uwe another great idea and video from you. Do you think this technique will be effective on wood, where tool push-off is common? Anxious to try it when available. Thanks
Amazing work man Your a wizard😮. I'm going to start by build threads for lathe and mill soon I hope You can help me with some of my challenges ahead.
Well done, this is a feature in some recent high end turning centers. I wonder if it's possible to add a sensor on the turret or tool holder that provides the resonance feedback to auto tune the SSV duration and variation.
In theory yes, since both can be adjusted on the fly, but it will need an additional board to convert the resonance feedback in a readable format for CNC12
I think you are starting to get the hang of CNC work! 😁
Jep, for the future i am planning to do more complex things than just turning a straight line 🤣🤣
Perfect 😊
How do they compare measurement wise?
The parts with chatter are bigger in diameter and not round
This isn't new technology, of course, but still very impressive to see it in action! I didn't think it was possible to turn such a long overhang without vibrations!
Does the feed rate stay constant or does it also change with the spindle speed?
It looks like the feed/rev stays the same, so the feed/min oscillates with the rpm
Yes, SSV is an option on some industrial CNC machines, but maybe new at DIY CNC. In this case I used G99 Per Revolution Feed. Centroid CNC is fast enough to use SSV even while threading.