YOUR FEEDRATE IS WRONG! – Haas Automation Tip of the Day

Actually your feedrate might be just fine . . . but just in case you’re hearing some crazy chirps or chattering when you’re milling inside corners or interpolating smaller circular pockets, Mark explains why the cutting edge of your tool might be going way faster than your feedrate seems to indicate, and the different ways you can resolve these issues.

If you enjoyed this video, please hit the like button and share it with a friend who’ll find it helpful . . . and thanks!

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[machzel]

I appreciate that the first tip was "Haas does this for you" and the second was "But if you don't have our stuff let me show you the other way". Much better than "Buy Haas if you want it to work". Great content.

[Shutupimslow]

I'm not in the CNC field, have never used anything as big as the Haas machines, and don't even interact with CNC people but with the hours and hours I have spent watching Haas tips of the day, I could totally nail an interview for an operator job.

[niclasnordblad]

I'm self taught in mastercam and have used it for about two years. sometimes I've torn my hair about mastercam not adjusting its feed rates for corners and now you show me this? Have a drink on me!

[hollarforadollar]

Mark is very intelligent and enjoyable to watch. Makes me a better operator for sure

[hadland]

I have been a prototype machinist programming on mazatrol for 9 years and i learned something new now! I have stopped interpolating and usually only Tornado mill because my mills have become bad very quick in interpolation. Now i can get back to it, thank you!

[wildin]

I've been using this formula for years, stole it from Mitsubishi thread mill catalogue once I realised what it was actually doing. Our shop used to spend hours contouring bores to get size and finish, blew some operators minds when they used this formula and got perfect fit first time with perfect surface finish.

[kentvandervelden]

Thank you for a fantastic explanation! I had never thought about this. As always, obvious facts are only obvious after being shown.

[davidfarmer]

Same goes for the outside of a circular boss as well. And yes fusion has this as well, under the feed optimization option.

[spkrman]

Great information. Now I know why I have heard that sound before...at a friends house! Not here! 😉😂

[billshiff]

Thanks for this. This is a great Tip! There will be a similar but opposite situation when milling external surfaces, Boss, rads, curves too.
Feed rate X (Boss dia + tool dia)/ Boss dia
1/2" tool cutting 2" boss @ 30 in/min
F30 X (2+.5)/2
F30 X (2.5)/2
F30 X 1.25
F = 37.5 in/min

[notalenthack]

I used this formula on a part that had 8 circ interpolated holes ranging from a finish size of .625 to 1.25 all done with the same .5 endmill. All 8 holes programmed at 11k RPM F100 IPM. When I checked the holes sizes I noticed the largest hole was just a couple tenths undersized but the smallest hole was .007 or .008 under programmed size. After adjusting feeds with formula the small hole was right on size just like the bigger ones. Two lessons here. #1 you guys did it again with another great Video. #2 never trust anything coming out of the front office! :)

[artcanchola]

Rerunning a part I did few months back. Small holes always came out like crap. Now I why!
This morning got an PO for 100 for more those M.F'ers. Now I'm going to Kill It!
Thanks for all the helpful tips!

[ismailqashoue]

Amazing how simple you made it to us, WOW.

[kduong]

I enjoy every of your valuable video, please continue to do more, thanks

[roshanp]

Great tip...Its amazing informative video. Keep posting such videos boss. Love ur channel

[CHUKWUEBUKANKWOR]

It is a great opportunity watching your videos I really appreciate. please could you write a program with G and M code for slot cutting explaining every details of the codes. Thanks

[chrispile]

Good stuff, Mark. We should show this vid to our bosses who want to know why it's taking so long!

[MrTooTechnical]

When u speak u are very fluid and articulate. Kick ass

[michaelnelson]

Great video....and the editing/white board effects are great!

[SuperAWaC]

This is really the kind of thing that should be taught in month 1 of machinist school... I know it was in mine. Also the OD formula is a bit different.