CALCULATE METRIC FEEDS AND SPEEDS FOR CNC MILL OR LATHE

[@samreyy]

Great video too by the way, helped me out allot as the formulas I was using had 300 and i couldn't understand why my answers where always different when i compared with other people online. The 318.3 was the key. Thanks!

[@alexarriaza4016]

How do you determine the table speed? Depends on material? Depth of cut?

[@akronnekron233]

For cnc milling machine I use same formula, but in more simple way. Depends on the tool you are using and on what material you are gonna machine there is m/min number in the catalog. Here you have 155 m/min and I just add the zero's at the end so it becomes 155 000 divided by Pi divided by 10 and you can easy calculate that with machine, phone or computer calculator.

[@samdoan1874]

Could you shoot a video with Feed Per Tooth in inches? I was a little confused with metric. Please help me.

[@samreyy]

What about when you are gang milling with for example ( 1 x 65mm HSS Slab 12 teeth cutter and 2 x 160mm Side and Face 20 teeth cutters?)

[@matiasgipler4724]

Ok so i understand all this. i have a feed rate but what tells me how deep of a cut can i make? or how much bite to give the endmill. i want to calculate feed rate RPM aswell as my axial and radial depth of cut. how do i incorporate all these together. pleaaaasee help!

[@ernestoterrazas3480]

Mr Stikkelman Thank you for your clear explanations on G programing. Could you explain us how to program a NPT thread in a milling machine by interpolation? I did oone time ago in it was a lot of calculations for a 1 inch NPT

[@ramanak2213]

What about the tool material and work material, dosent they have any control over n,f,ap.?

[@samdoan1874]

surface speed and SFM are the same or different. Please help me out!

[@173roberto]

The last week I had the problem to make a part bigger than the chuck, later I ralized I nedded to make jaws but I have never made any soft jaw. My only choice is to try it, but before that I would like to view examples, do you have an example picture for gripping parts bigger than the chuck? should I consider any special consideration for calculating speeds?

[@fabuloustshirtsonline]

have a couple questions. I'm new programming lathes. HOW DO YOU CALCULATHE FEED PER REVOLUTION IN INCHES, AND WHAT IS TABLE FEED.? THANKS IN ADVANCE

[@mandarparkhi3708]

Nice explanation. Thanks

[@TomStikkelman]

Yes that means the same!

[@173roberto]

thaks for sharing :) your videos are great. I have to calculate the speed for the cnc lathe, Constant surface speed and feed per revolution, but I didn't find any material (common used) speed charts for carbide inserts. I also found that too many variables affect such as the depth of cut, boring bar diameter, the type of operation, threading, grooving, parting, internal turning, how can I consider al these factors and find the best speeds?, is there any paper that I most read?

[@lordramz]

thanks for the tutorials Sir!

[@johnraymacato8009]

sir how about feed and speeds for cnc lathe

[@MukeshKumar-dj6zu]

sir when we r cutting a end face on turning . then haw ill we find out max rpm g50 . and if we want to do cutting in g97 so haw ill we find out rpm values for g97.

[@indrasnath]

Hello Sir, Thanks a lot for sharing. I had a small doubt ... in the above tutorial to how much step over and depth of cut we are calculating feed and rpm..? Pardon me if my question is stupid.

[@Alya61]

Hello. Thanks for the video. It is so useful to understand the subject. I want to ask; is that the same thing FPT (Feed Per Tooth) and Chip Load?

[@WilliamJBronski]

yes, those would be the same.

[@mdrafik7090]

speed and feed is k but how cued I take the depth of cut for a cutter

[@SirBenNo07]

thank for this useful vid ! i'll subscrible for more infos ! thank a lot

[@alinbcu]

Hello, first thanks for your video, i want to ask you if you are shore about your RPM formula? I use for mm this one RPM = 4 x surface speed x 25.4 / diam. there is a lot of confusing tutorials on youtube, with your formula you get more then double RPM value,

[@TomStikkelman]

+Bartos Alin Hello Bartos. Cick on this link and it will help you double check your calculations. Thanks for watching. Tomwww.kennametal.com/en/resources/engineering-calculators/miscellaneous/speed-and-feed

[@malikmohsinawan2644]

Hello sir plz help me and explain to me...20 mm dia aluminum bar..how much rpm and feed??

[@mandalaswamy1197]

I want know cnc turning machine cutting speed , rpm,feed and cutting velocity calculations

[@bease01]

hi there, I'm a little confused with the feed per tooth sum. 254/2000x4=.508 doesn't it?or am I missing something?

[@TomStikkelman]

bease01 Correct. That is .508mm per tooth, or .020 Inch per tooth.

[@connor2194]

+bease01 use MDAS (multiplication,division,addition,subtraction)

[@johnthompson472]

Hi Tom Why have you got .0317 from the sum of 254/2000x4? this sum = .508 Thanks John

[@TomStikkelman]

Make sure to multiply the 2000 x 4 first. That makes 8000. Then divide 254 by 8000. Thanks for watching.

[@malikmohsinawan2644]

Tom Stikkelman sir i want cnc lath rpm and feed formula chart

[@mertcapkin7263]

m/min divided by mm? Uhh..?

[@dharmendraprasad8443]

upload formula in chart plzz sir