You're a wealth of knowledge and I'd watch pretty much anything you post. Hell I'd probably watch you boil water cause I'll probably learn something new. Slight joking aside you have already taught me alot of concepts and lessons and have legitimately helped me advance my skill and abilities. So feel free to knowledge dump anything you have to offer cause it's bound to be helpful to atleast one person out there and that makes it worth it to that person.

Please more, mill guy here but this is fascinating.

A series of videos on this topic would certainly be of enormous value as reference material. Thanks very much.

I learn something from all your videos!

I needed this video and more like it. You explain the process very well. Thank you, you helped a young machinist today.

I work on a Doosan lathe that has milling combined in, though the milling part is not as advanced as the Mazak you have. Programming mostly with Manual Guide i and custom macro, no cam. Just wanted to say that I watch all your videos because you always do something special even on jobs that look simple at first and I always learn some precious knowledge that I can never find anywhere. It helps me think outside of the box and find better solutions at work. This channel is pure gold for people that love learning and modern machining

Excellent video. Please continue this series.

Thank you for your generosity. Your willingness to share this information reveals your love of humanity. As a fellow human, I am grateful. I have extraordinary respect for how your mind works. Please keep it up!

Bring it on, Peter. There are fewer people who understand this, than people who THINK they understand it... I'd like to see your explanation of how it affects a long taper, and threading

YES! PLEASE MAKE MORE OF THESE VIDEOS! Let’s do a whole lesson series on lathe toolpaths and tooling!!!! Chaining methods, and work holding! I run a haas st30!

At my level I'm only learning the concepts rather than the details, but I'm also learning how much I don't know about t the subject. Thank you for both of those things.

Speaking for me, I am very interested in all these CNC "specialities" and "secrets". Please make more such explanational videos.

Fanuc 6T manual has several pages about that. Kinda crazy they programmed that into Fanuc 3T/6T back in 1980.

Yes, yes aaaaand YES! Please, we need well informed and experienced people to talk more theory and shop!

Always want more Edge Precision videos. Thanks for the video!

You bet I'd be greatful of your series on tool tips. Thanks for sharing your knowledge

Hey Peter, that video was really helpful. Keep up the great work. 👍

Great. now I know why my angles and radius go squiff sometimes and how important it is to get the right info in the cam software. some of the rads on our groove tools are fudged as I couldn't find the right info at the time,time to get all the right info. and find I get alot of nose radius errors using g41-42 cutter comp and usually go direct with no cutter comp (in computer on fusion 360. also it puts the compensation on and of in the wrong place alot). But I use with the milling side of things on a doosan lynx 220. Thanks for all your knowledge and willingness to share it👏👏👍

Thanks for the video Peter, in the really early days ,i had to manually use trig to find the compensation ammounts in X & Z to get the 60 & 45 degree angles spot on,on parts we used to produce. The control works it all out for you now . A video about when to actually apply the tool nose radius & when to turn the compensation off again would be helpful. Thanks for taking the time & effort to spread your knowledge.

This great information, I just ran in to the issue with the grooving/cutoff tool not breaking the edge. Now I now why. I need to set 2 offsets. Please do more videos to explain the tool comp on the lathe. I’m working with mills for a number of years and started with lathe a year ago.

Something to add on to help someone (hopefully). If you're cutting a corner break on an OD, you can use the following: X1 - 2L - 2D - 2C = X2 (for an OD) (you have to go below your diameter to get a start point) X1 + 2L + 2D + 2C = X2 (for an ID) (you have to go above your diameter to get a start point) X1 = your finish diameter L = Length of bevel or corner break D = Distance in front of Z zero where you begin your feed C = Radius Compensation X2 = Start point for the tool {[(X1 - X2)/2]/tan(θ)} - {D} = Z Z = end point of bevel Above equation simplified: X1 - X2 then divide by 2 then divide by tangent of angle, (theta = θ) then subtract distance (D) in front of Z0 this gives you your end point of the corner break/bevel, Z Example: 5 inch OD with a .03x45deg corner break starting .020 in front of Z0 The radius comp for a 45 degree with a .032 (2 series radius i.e. DNMG 432) is .0183. You should be able to find a radius comp sheet somewhere online for your tooling. G00 X5.050 Z.050 (a .050 clear point for the fictitious part) X4.8634 (This is X2 from above) G01 Z.02 F.010 (feeding in in front of Z0 from clear point) X5.0 Z-.0483 (cutting the .03x45) Z-1.0 (turning back 1" at 5" diameter) G01 X5.050 G00 Z.05 The math: 5 - 2(.03) - 2(.02) - 2(.0183) = 4.8634 5 - 4.8634 = .1366 (finish minus start point, "X1 - X2") .1366/2 = .0683 .0683/tan(45) = .0683 (for a 45 degree, it will always be the same as the input number, for example, this would change to .1183 using tan(30)) .0683 - .02 = .0483 (distance to go back, "Z" from above) I would have gone into more detail than this, and covered more scenarios, but this took WAY too long to type lol. My boss writes the programs in CAM, and we as the machinists often have to fix formatting errors per machine, typos, bugs, and simple mistakes in the unproven programs.

Keep them coming! We should always be learning new things.

Good stuff. I'd watch more of this.

This information is so valuable makes it much easier to understand what your code is actually doing, please do more!

ive been programming for 20 years now,always been spoiled and had mastercam or esprit. its been on my list of things to do in case i move somewhere without that luxury

We used to calculate it manually on the side of the machine with Chinese marker. .009153 is the number to remember for a 45deg angle. 👍🏻

This is something that I personally totally understand because of the way I write my programs but please keep posting videos like this because it is super educational and good to watch and learn so yea keep them coming

The groove segment of this video made so much sense. Im going to try it on Monday. Tired of breaking sharp corners with sand paper. And inspection doesnt care too much about tiny steps on the bottom corners in the grooves. But I do. Awesome video.

Excellent video, like to see more on lathe turning, you have been quiet with the videos good see you back!

I’ll watch them!

Great info Peter!!!

This new stuff for me. I'm interested in hearing about it. And to think I've been machining manual machines for 40 years. I may do cnc yet.

Hey, I don't really care what you show in your video. I like what you do and how you do it so keep em coming

That was very interestimg. keep it up. I'll watch your series

Definitely go more in depth about it. I always learn better when it comes from the white board of knowledge like this... or in this case, the 'yellow paper of knowledge". :)

Love the way you explain this, good job!

yeah, i need all the cad cam and lathe tricks you got

Thanks Peter, I had not thought about needing a separate offset for the back side of the grooving tool (just added the tool dimensions in the cam software and run off the one offset) but I guess if you need a different offset to remove a burr on one side but not the other side it gives you that flexibility to dial in each side. If there is anything along similar liness around programming left hand threads vs right hand threads that would be interesting

Please go over cutter comp directions =). This is very good information so thank you!

you can actually also this without using cutter comp. If you do the same thing by wanting to add an external conrad or chamfer just to break the edge by 0.1mm (4thou), if you leave it as that usually your not going to see anything happen to the coroners. You have to put in like 0.75mm (30thou), depending on the insert, just for a little corner break. essentially its cutting air where the nose radius of the tool is large, only where that imaginary tip would be if it had a 0 radius tip. Also could be worth mentioning that i think it can mess up taper sizes

good video peter

Kinda like a "ZEN" Bob Ross of Mathematics. As a retired Electrician and Not being a machinist this video very interesting. More would be helpful to the machinist group.

Yes! I am trying to figure this out right now

More would be great. Thank you.

Thanks!

This is a great video. I have been looking at a Cnc lathe. It doesn’t have live tooling though So I can’t decide if it would be worth investing in or if I should just hold out and try to wait for the machine with the specs I want to come along.

When I’m writing my program by hand in g codes I always have troubles with chamfers when i compensating the radiuses, and I don’t know what I’m doing wrong, hope ur series will help me out with my issue

Very good video. I was wondering after watching probably all of youre videos, do you ever use the mazatrol programming? I setup and program an Integrex I-400, and before that an Integrex E-410. I’ve never had the need for CAM programming because i find that the mazatrol can do most of the things i need, sometimes you have to trick the control but it works out. Keep up the great videos, have learned a lot from them!

cool beans dude

External radis is going to be bigger, and internal radis will be smaller, if you change radius in plus, in offset page, and and vice versa, if you make radius smaler in offset page

G41 and g42 direction is same on lathe and mill g42 ccw direction g41 cw direction my okuma can use tool com for roughing the haas only uses it on the finish roughing pass but the okuma uses it each roughing pass

👍

More info would be great

I'm mostly self taught and I could probably benefit by using cutter compensation to dial in dimensions without having to go back and forth between CAM and the controller.

This is good information

Just starting out with using radius comp here. I program my lathe by hand writing the gcode. Not sure if I'll continue to do so, probably will use fusion 360 for more shapey parts at least.

Yes that would be interesting. Does it work differently on the turn mill center than on a normal lathe?

Pete continue with explaining causes for variations in radius angles with a video .

THANKYOU

beautuful Peter/ if you can lets have it .

Excellent video as always❤❤❤

I have the exact problem you are talking about on the groove pretty often. Typically I just end up getting a little tighter on the diameters if I can. I also typically just do a chamfer vs a corner round. Now on to my request. I have a matrix controller integrex and esprit. Esprit post processor is garbage so I haven’t done much turning through esprit but typically when there is milling I’ll program it in esprit. And then make those sub programs in a mazatrol program. I’d like to get away from having to do that and curious if you use g54 or g53.5 in your eia programs? Also how do you set that all up? I’m the integrexes I have always used centerline as my x and y zero but I’ve seen what you do and I wanted to just bolt a centering vise or a 2 jaw chuck and do some milling on the machine. Also new machine has a renishaw probe do you have any help on figuring out how to get that working?

Do you rely on the manufacturer spec for tip radius, or do you measure it yourself on something like a comparator? Are there brands that are more true to spec than others?

Peter, I have to program manually can you talk about that Alittle

I also have problems where the sub spindle has Z in positive direction and the canned doesnt work.

Were you able to get your chip conveyor fixed?

Its like to roll the circle over part contur? and circle center path will be the traectory of machine moves according to circle R?