Disclaimer: CNC Concepts, Inc. accepts no responsibility for the use or misuse of if you could send me a list of the benefits between using G96 instead of G Constant Surface feet spindle speeds – G96, G97, G77, G To use the following codes the OmniTurn must be equipped with a spindle control package. TwinCAT CNC Axis Commissioning G97 Deselection of constant cutting speed , selection of spindle speed (modal, default) Using the G-functions G96, G97 and G, the interpretation of the S-word (or S-strings) can be optionally changed.

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This mode is only used for single point turning tools boring bars, turning tools, grooving tools, etc. If you feel you have been affected by any of the issues mentioned in this post please Contact me on Depending upon your spindle drive system’s response time, it will likely take longer for the spindle to slow down than for the rapid motion to occur.

In constant surface speed mode, xnc spindle speed in rpm is automatically determined by the CNC control based 9g6 the diameter a tool is currently cutting and the speed specified in surface feet per minute or meters per minute in metric mode. Harold could only run so fast but I noticed when he was on the small 6 inch wheel it absolutely whizzed around.

Wasn’t trying to take a shot at you. With manual lathes, there is no such thing as constant surface speed. Everything must be done in rpm. t96

Guess my question can be taken a few different ways. This constant increase and decrease v97 rpm not only wastes cycle time, it wastes electricity and causes undue wear-and-tear on the spindle drive system.


If you want to know more or withdraw your consent to all or some of the cookies, please refer to the cookie policy. CNC Training on all controls and machines. The cutting tool will rapid to a tool change position usually a large diameter in X. This is a surface speed.

Login to Your Account. He was so tired he slept all day. Make 2 simple programs and go watch it run, soon as you see the 2nd program run you’ll have that “aha” moment I guarantee!

So I know how to setup, run and program G97 is a constant, unchanging RPM. When you use G96, it changes. Industrial Forum Existing user?

Theres a difference, dont put words in my mouth. Or sign in with one of these services Sign in with Facebook. Another reason why manual machinists tend to prefer working in rpm mode and running at slower than optimum speeds is that the workholding devices they’ve used on manual lathes commonly manual three-jaw chucks could not apply the gripping force necessary to run at optimum spindle speed.

Bookmarks Bookmarks Digg del. I believe Yaskawa will no longer support the Yasnac b control since it is so old.

I’ve always just gotten it to work to my liking by messing with the 3 numbers, but can anyone tell me exactly what changes when the G96 changes? G96 S M3 Your machine would start up at a surface speed of metres a minute. Could be a problem. There are b96 least four benefits to using constant surface speed mode for appropriate applications. In this way, the wasted change in spindle speed will not occur, and when the next tool is in position, the spindle will be running at vnc correct rpm.

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Once it gets into position and G96 kicks on, you shouldn’t see any spindle speed fluctuation and it will go right into the cut at the appropriate speed. Website Developed By Jabberdog.

For round, true running workpieces, this is acceptable. ANd what does G97 control? When compromising speed as must be done when working in rpm mode, the spindle seldom runs at the appropriate rpm, and tool life may suffer.

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A few cautions Out of round workpieces – If you machine a lot of castings or forgings or any other kind of workpiece that doesn’t run true in the spindleyou must be very careful with the constant surface speed mode. If you program G96 S In this case, many programmers will calculate the appropriate speed in rpm and run the machine in rpm mode.

What I really mean is that the most important thing is to understand what the machine can do and the concepts of programming and Basic Turning. Y96 Optional Stop newsletter. So if you programme.

G96 & G97 on lathe. – Industrial Forum –

This speed is published by cutting tool manufacturers and is based upon the material being machined and the material of the cutting tool’s cutting edge.

All parameters look ok and I have re entered them all.

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