CNC LATHE PROGRAMMING LESSON 2 PART1 OF 2 - G71 CANNED CYCLE FOR OD ROUGHING

[@num1booger]

great video tom, machinist of 20 yrs now youd think i woulda learned g71 thus far, with your tutorial i am on my way, thx tom

[@janluigybuffon6136]

Thank you so much I just did it by my self at the place that I work at then don’t teach me how to progrogram they just me to keep pushing the green button but thanks God there is people like you

[@audieshannon9920]

You are a great teacher you make something so confusing almost simple. your videos have helped me tremendously. keep up the good work

[@thomasbrown6385]

I truly appreciate your videos i am a beginner at this and these videos are made very plain so that i can understand, thank you so much and please dont stop making them

[@Primal-Dude]

This really cleared up canned cycles for me, much better explanation than my teacher. Thank you very much

[@texas1651988]

Hi Tom, These videos are very helpful, very easy to understand how to guide, thanks to Tom a lot.

[@RockerGuy0001]

Very comprehensive Mr Stikkelman! Brings alot to light.

[@venkateshk1455]

Thank you, your explanation is very easy to follow. It makes understading simple 👍

[@sheildedhuman6183]

Most helpful for me! You are my best CNC teacher ever!!!

[@weaponstester8976]

Great video good enough to watch it through one time then come back and take notes am going to make some easy lathe projects with your first two videos some of the projects I made in my machine tool class at tech school

[@weaponstester8976]

Thanks for helping me alot and not complain about my name on KZbin

[@evanaprile6331]

That has really helped! I struggle with the fear of programming cause I have the hardest time placing G-codes and coordinates in the right place.

[@rickochet6523]

Great video, thank you very much. You’ve highlighted the most important parts well, and simplified it which I appreciate. The issue I’ve had with figuring this out… (which your video explained very well) was how the the stock is specified in the start line above the 1st G71. Some of the other videos I’ve watched ( over 12min long) seem to skip how crucial this line is. As well as the exit matching stock co-ordinate. I didn’t get quite get as far as seeing if you’d posted another video showing the the finishing pass with using the same sub routine in a G70 for the finish stock removal before writing comment. Although definitely comes in handy when writing programmes in the fly 💪🏻

[@TomStikkelman]

Thanks for that feedback! Glad it helped you.

[@An20E]

Such a great video machinist GOLD 👍🏻

[@terrancefloyd2155]

Thanks for your tutorials and sharing your knowledge and experience. Very helpful.

[@jackflash6377]

Hey Tom, Just wanted to say thanks. I couldn't get Inventor HSM to produce a good tool path for my simple part. I had been watching your videos so, I decided to do it myself using your examples. I looked up G71 in the HAAS manual and it's slightly different (depth of cut is D) but I was able to make the adjustments and my part turned out perfect. I specified X0.218 and it miked at 0.2180". For that simple operation I think it was actually faster doing it manually. Anyway.. Thanks for the videos.

[@casonlionel7121]

I know im asking randomly but does anyone know a tool to get back into an instagram account? I was dumb lost my account password. I would love any help you can offer me!

[@caleblyric7560]

@Cason Lionel Instablaster ;)

[@casonlionel7121]

@Caleb Lyric thanks for your reply. I got to the site through google and I'm waiting for the hacking stuff now. Looks like it's gonna take a while so I will get back to you later when my account password hopefully is recovered.

[@casonlionel7121]

@Caleb Lyric It worked and I now got access to my account again. I am so happy:D Thank you so much, you really help me out :D

[@caleblyric7560]

@Cason Lionel glad I could help xD

[@bambiluong9759]

Thank you for sharing your knowledge, all of your video really helpful

[@yusridzal7948]

thank you sir, I find it very helpful because of this tutorial :D

[@matter9]

good video, I learned a couple things, but I also inadvertently introduced an error to my code because I misunderstood the phrasing when Tom mentioned the requirement that the X, (and the solution to my problem) ***ONLY X***, must have the same value as before the G71 call, seems obvious now but if you include the Z coordinate value from the approach position on that line you will get errors at the control even if not all simulators show it. Anyway, thanks again for the video, helped solidify a good principle.

[@johnraymacato8009]

sir how about if there is a chamfer required on each edge

[@cesarzamarron7232]

would you please recommend a good cnc simulator where I can run and practice the programs

[@kellytran381]

Thank you very much , Tom. I have been watching all your videos. I am grateful for all the knowledge that you have passed on to us young machinists out here. Would you mind considering some videos for making groove cycles, using G74, G75 ( for face or side grooves) ? Thanks again, Sir.

[@fishsticks88]

Question.. about the x and z dimensions that you leave for the finish.. are those dimensions being left for the finishing tool or for the finish (final) pass of your roughing tool..

[@fishsticks88]

?

[@saulmendez7096]

very helpfull. thank you Tom

[@arieljheng420]

Sir tom thank you verymuch for sharing your knowledge with us.

[@Cusnpbzn]

Thank you for this vid, it really helped me simplify things and make changes. On my final cut geometry (with G70), I have a radius. The specific line is G01 Z-5.5 R.025. Now my depth of cut is .300. When it is rough cutting in G71, it actually cuts into that radius, like it doesn't understand the radius geometry is there. It still makes the radius but there remains a small nick in it. Its not a big deal at all, I was just surprised to see it do that. Maybe I should use a G03, but that would complicate things a bit. This is on a HASS TL2. Thanks again!

[@Cusnpbzn]

+mckeesk In other words, if I put an inside radius at the intersection of two perpendicular surfaces in the canned cycle geometry, it won't recognize it. It treats that as two right angled surfaces and will rough cut into the stock meant to be left on for the radius.

[@TomStikkelman]

+mckeesk Make sure you have a G18 plane selection active active before calling a G2 or a G3

[@albertta2025]

can you recommend a good cnc simulator for us to practice g codes?

[@billDaved_2024]

which cnc simulator can you recommend, for practice G code?

[@im-un-fragile]

ncviewer.com/ This one works pretty well for mill... I haven't tried to see if it will do lathe. For the class I'm currently taking, this is the simulator we are using - media.pearsoncmg.com/ph/chet/careersresources/resourcessite/products/product.html#product,isbn=0132176033 Under "Student Resources" click "Student Simulations" and download the zip file. It will have some limitations since it is a student version... also, it seems to be very clunky and finicky so you may have to re-load it a couple of times to get it to work correctly.

[@benkenny3220]

What about Z0 ? Did I miss that part or something? Maybe it doesn't matter in this example?

[@delgadojose4927]

Thank you your videos help me alot

[@fillemonmvura7077]

Hi Sir, If it's not a problem, what software do you use Sir?

[@ptsox15]

Tom. I run a Fanuc Oi mate-td. having trouble programming a 45° chamfer using a g71 roughing cycle. do I have to write it line by line, or is there a way around that. Thanks. -Pat

[@mikemai8568]

Could I use different tool and use G70 canned cycle to do the finish cut?

[@TomStikkelman]

Yes you can

[@elmrwanalex]

You my hero God bless you 😇❤️

[@johnnysmith2893]

Bit confused, how does the machine know which way to retract if od and Id turning have positive values for retract distance.

[@TomStikkelman]

John Smith Smith The P And Q diameters will be reverse. OD roughing the 1st N is the finished diameter (small diameter)and the second N will be the start diameter, usually the raw material diameter. On ID roughing the 1st N is the larger diameter (finish bore dia) and second N is the start diameter. Thanks for watching.

[@johnnysmith2893]

Tom Stikkelman thanks it's something that has caused me great grief this week. would the machine know automatically which way to retract in z if I was turning to a shoulder with a left hand tool?

[@muzammalhussain3529]

Very helpful this vedeo please I am new cnc operator

[@mikemai8568]

Hello Tom, Would G71 does the turning with multiple diameters and undercut on O.D. as well? I am thinking about program it but not sure if the G71 will do that. Please advise. Thanks

[@TomStikkelman]

+Mike Mai Yes but the G71 canned cycle can be used to turn undercuts or pockets on type 2 Fanuc controls only. Thanks Tom

[@mikemai8568]

I have heard other programmers mentioned about type 2 but I am not quite sure. If you know please explain it. Do you have the type 2 videos? Thanks Tom

[@kevinhartley436]

Where i work corner's are broken/chambered .062 . it would be helpful to ad a few in next video or alter/insert into this video.

[@sandroSwann]

Hi Tom - i am new to lathe and Thank You ! My question is as follows: i noticed that the Feedrate was 0.01" ipm... is this to imply a percentage of the Spindle Speed and if so what is the G-code that tells the lathe to utilize this function (G96?) and how does one turn this relationship On or Off ?

[@TomStikkelman]

ShaneW You are correct. I was wrong in the previous response and have removed it. The G96 controls the surface footage and yes changes the speed of the spindle depending on the diameter change to keep the tool tip from getting hot and wear out faster. The G99 controls the feed rate per revolution and G97 and G96 only control spindle speed. Thanks

[@sjdarlak]

are there X dia shouldn't be devided by 2?

[@TomStikkelman]

Sebastian Darlak Thanks for asking Sebastian. All X diameters on a CNC lathe are programmed diametral. So if your turned diameter needs to be 1 inch then the X value would be X1.0.

[@MrAirsoftmodz]

Tom Stikkelman same as a manual lathe

[@itsgrego5186]

Thanks Tom.

[@mitchzeerip1]

Thank you for your videos!

[@Igun1]

i am not a CNC`er but with these videos i have really learnt a lot. my question is, how can we put a radius at the very start point of the material? that is how can the 0.5 inches smallest part be radius-ed?

[@jchinderle]

+igunnuoda olorunmuyiwa g02/g03 circular interpolation movements. i see he made a "g0/g2/g3/g4" video...

[@TomStikkelman]

+igunnuoda olorunmuyiwa In order to add a radius on the front of the part the canned cycle would have the smallest X- diameter on the N100 line in this example. So if the radius is .100" than the diameter next to N100 would be X.300 instead of X.500 Then the radius would be part of the geometry section between N100 and N110. Hope that helps. Thanks Tom

[@EduardSidorov-i3f]

Спасибо Вам За урок.👍👍👍

[@joelalonso1027]

excelentes tutoriales, porque ya hechos nuevos tutoriales me gustaria ver mas tutoriales ??

[@kuisalto5823]

do you give actual training?

[@SonuYadav-kn1xw]

How to use g71 code machine citizen l32

[@saravanang4102]

VMC Setting(all offsets dial using) and programm(2d,macro, Delcom) pls sir help me

[@camcompco]

Hi Tom, these vids are very helpful . . I am as new to CNC as new can be so the great clarity and fine detail of your explanations is very much appreciated. Can I ask, what is the name of the simulator you used on this tutorial? Thanks for sharing the knowledge. John

[@TomStikkelman]

+camcompco Thank you for the feedback camcompco! I used Mastercam to show the simulation.Thanks Tom

[@freedommasteroflife]

Correct me if I'm wrong but from what you showed us in your back plot and how you developed your program the cutting paths are not in sequence....shouldn't it be like this to match you back plot G0 X3. Z.1 G71 U.1 R.05 G71 P100 Q110 U.03 W.01 F.01 N100 G0 X2.5 G1 Z-3.8 X2.0 Z-2.3 X1.5 Z-1.5 X1.0 Z-1.0 X0.5 Z-0.4 N110 X3.0

[@umargul5644]

Great 👍

[@laurfaur]

Thank you!

[@MrRicky4992]

hello sir can u please make a video to explain oil grooving

[@jarisipilainen3875]

3:25 N110 X2.5001 works also it will go up R much anyways. no need cut air lol

[@Silent_Trader_Vicky]

I’m little confused with sequence N100 andN100.

[@dbz4586]

vicky singh they are just there for the start and finish of the cycle.

[@edwardsunga8748]

thanks Tom

[@maravatio67]

Great video!!!.

[@TomStikkelman]

Thanks Melchor!

[@ptonfire1]

Thx sir!!

[@mariocortes1337]

You're a very good teacher,, maybe more info before the start position!?

[@zorztiliga6925]

hi teacher from Greece

[@dunstanabenayake3494]

Excellent

[@Stab17601]

I am learning alot

[@amirsaberi1336]

great. Thanks

[@joseignaciobenavides4867]

Good fuking video man 👍👍👍

[@TomStikkelman]

Thanks Jose.

[@bernerprimeTV]

Thank you sir

[@cooperelpero]

Thanks!

[@carrotthanaphat4060]

Thanks.

[@chicagolathe-shopmaster-sh1680]

Tom, Great videos, but go to the blackboard and write "G ZERO" 100 times- you tend to say G "OH" in your narration, and that will confuse the beginners.

[@TomStikkelman]

SHOPMASTER/SHOPTASK Registered You are right!! Several have pointed this out. Will be corrected in future recordings. Thanks for watching.

[@TomStikkelman]

SHOPMASTER/SHOPTASK Registered You are right!! Several have pointed this out. Will be corrected in future recordings. Thanks for watching.

[@chicagolathe-shopmaster-sh1680]

Tom, Yes, it's unfortunate that whoever wrote the original G codes did not recognize this issue and simply bypassed G0 and started with G1. I can't count the number of times guys have called me when learning their new machines and said " I told it to GO X1 and nothing happened"

[@ichbic]

Very important distinction because of GOTO

[@jonjuke6849]

Quit knick picking everybody knows what he is saying .

[@n.s2833]

👍

[@tienduong4933]

greatest

[@naseeramohamed147]

It's nice lesson. I prefer Metric system instead of British system