End Mills, The Nitty-Gritty: Face Mills and Inserts

[@joaquinbrandan8664]

this is great. lots of knowledge in this series!

[@CountryTesla]

Absolutely excellent and educational video sir! I started watching (and will be rewatching) your Fadal build after I unload mine. Learned more about inserts in ten minutes than I have from tool reps in two years. The true data is so refreshing.

[@augustusczar7375]

I have an issue. I have a 4in endmill with 8 inserts and 2 of the inserts don't show wear. I'm assuming for some reason they aren't on the same plain as the other inserts. My question is why? The tool is brand new the tool holder is the proper tool holder, inserts are aligned properly with the same exact sides indexed together held by the proper screws and torqued to spec

[@electronicproductcommercia5553]

Fantastic, thank you, exactly what I was looking for.

[@ThomasZieg]

Awesome video! Thank you for taking your time to make this.

[@FretsNirvana]

Watched all of them ...now will have to do it about 100 times to absorb it all! Thanks

[@KW-ei3pi]

Hi Tim. I hope you are doing well and will be making some more videos soon. The Nitty-Gritty series was fantastic. Any such educational videos would be great as you have a very good teaching style. More videos please! Thanks

[@bluehandsvideo]

Another great vid! Like someone else already said.....I didn't understand the wiper much at all.....your explanation helped a lot!! Great series!! Thank you! :)

[@AtManUnlimitedMachining]

Your Welcome Mike, are you going to try something with a shop vac and garbage can? Let me know if you do.

[@bluehandsvideo]

I'd like to, but it won't be anytime soon. Hmmm......actually.....mounting my dust deputy to the garbage can would probably be the better thing to do.

[@alonsorobots]

Sorry for the basic question. What is the benefit of indexable end mills vs regular? Just that they are cheaper to replace the edges? It seems like the geometry would limit evacuation as well as regular, but perhaps I'm wrong.

[@Jake-zc3fk]

I appreciate your effort here and you have cleared up some things for me. I do however have a question that I have not seen answered here or anywhere else I’ve looked. That is: what is the acceptable tolerance for cutter depth variance on a face mill? In other word’s, you stated that not every cutter will be at the same depth of cut. So the question is then, what is a reasonable difference to have between cutters? Is it a difference overall of .001 for say a 6 cutter head? Is it .003? What would you say is an acceptable tolerance? Now I would imagine that this might depend on the type of cutter and the size of the head and the number of cutters, but perhaps you can give a general answer?

[@kfmutrus]

Really sorry for my late response but thank you for clarification about 1.5-flute rule!

[@AtManUnlimitedMachining]

No Worries, hope I was a good enough answer! Thanks for the reply, Tim

[@megharajgm1981]

Great video. What a knowledge pack u have. Please tell me What is the square type insert specification you have shown in this video.

[@johnburke7253]

Another good one, at one moment there you were trending to engineering speak, but you pulled yourself back, know it's hard for you engineers but just saying. I appreciate the effort you put into these videos, I have a manual mill, a Bridgeport, a CNC plasma table that I recent purchased from LDR Motion systems, and I am looking for a small CNC mill, like a Hurco 10 or a Haas Minimill 2, so I am finding all your videos pretty useful. Keep up the good work.

[@AtManUnlimitedMachining]

Thanks John, I like that "Engineering Speak" LOL. By request I'm going to venture into the motor, electrical, and controls side. Those may get into a lot of "Engineering Speak" ;) If there are any topics you would like covered let me know. Thanks again, Tim

[@rayb2420]

I never understood the purpose of a wiper insert until now. Thanks for a great tutorial!

[@AtManUnlimitedMachining]

Your Welcome, yep, the wiper just cleans things up and becomes like a one flute cutter.

[@lilchirp4846]

@@AtManUnlimitedMachining what if you put in two wipers? or fill it all up with wiper inserts?

[@p0intdk]

Where or how do i figure out this out to calculate the 1.5 cut engagement? I know is not very possible/practical as you said but i still want to know what the stepover and depth-of-cut should be if i want to be in the realm of 1.5.

[@michaelandersen5453]

thank you I'mm new to milling so this is very helpful

[@AtManUnlimitedMachining]

welcome

[@hunter50au]

Great video, as a hobby machinists these videos are very informative, I know next to nothing about feeds, speed and chip loads, so these videos very good. Can you recommend a program for working all this out Thank you again for the videos

[@AtManUnlimitedMachining]

Hello Michael, I think the two best calculators to help with feeds and speeds is G Wizard and HSM Advisor. I think both have a free trial so you can try before you buy. Also if you look in the catalogs or on the tool suppliers web sites for the tooling you use they will provide guidance as to what speed and feed they recommend. They will also sometimes list width and depths of some common cut types. Thanks Tim

[@hunter50au]

At-Man Unlimited Machining thank you for reply

[@EZ_shop]

Was having a hard time understanding the drawings this time, but I liked the video.

[@AtManUnlimitedMachining]

I'm sorry, the drawing was the profile of the chip the cutting edge would take. What could I have added to make it more clear? Thanks for the feedback. Tim

[@EZ_shop]

No sweat Tim, I was probably overthinking your drawing. Perhaps if you had held the tools over the paper and showed how those individual chips were getting made. I'm not sure. I do appreciate what you do though, I'm learning a lot from your videos. Ciao, Marco.

[@AtManUnlimitedMachining]

Thanks for the feedback, I will keep that in mind the next 2 bit drawing I do ;) There is always room for improvement!

[@mikeskaggs1051]

I wonder if he actually knows where the term "rule of thumb" came from''' But the real question is, would he still use that term in his day-to-day vocabulary if he knew what it meant back in the day or if he'd stop referring to thumb size completely. LOL!

[@linzenmeyer]

I thought "Rule of thumb" was about how to legally beat your ol' lady..........