It should be noted that G41, G42 is not necessarily inside and outside compensating, but rather left and right direction of offset movement in relation to work surface. Back turning away from the spindle on the od of a part is G41, turning towards the spindle is G42. Back turning on the id is G42, boring towards the spindle is G41. Like your videos, especially the graphics, however they could use a little more explanation to keep the new guys out of trouble. I've had programs where machining was on the opposite side of the centerline, all arcs are reversed along with direction of tool comp and tool type. Talk about head scratching.......
@buschbwbusch8 жыл бұрын
Good Video! It is important to note that many lathes will have many different Settings that may have impact on TNR and canned cycles, TNR can behave oddly in some cases unfortunately and is truly only needed when turning radii and champhers if you are straight facing and turning it would not be needed. Very good introductory video!
@colinperks27844 жыл бұрын
Thanks for taking the time to make these videos, I've always programmed using Gibbscam or mazatrol conversational programming but now need to program from scratch. You have a nice, easy to understand way of showing us how to get on - very much appreciated :-)
@TomStikkelman4 жыл бұрын
Thanks for that feedback Colin.
@jamesromano60457 жыл бұрын
great vid remember if you don't crash you haven't done it long enough
@lanamarchese49538 жыл бұрын
Easy to understand. Thank you.
@jimburnsjr.9 ай бұрын
Excellent topicand Video Tom... Listen my friend... id like to set up a short playlist to give to my new coworkers... but i cannot save many of your pages to a playlist.. i believe because you have marked them as "for Kids" when you set the videos up.... youtube will not let us save videos to playlists if they are marked "for kids". hope this helps.
@alializadeh81952 жыл бұрын
مرسی
@peeeoii27385 ай бұрын
How to comparte for non monotonic g71 canned cycles when chamfers go in the lower x than starting point
@mikemai85688 жыл бұрын
These videos are great. Thanks
@TomStikkelman8 жыл бұрын
Thanks Mike.
@duynguyen5988 жыл бұрын
thank you for your video. but if you do not mind you may explain the compensation about tool with G42 and G41 clearly, thanks a lot. i am just beginner of cnc.
@James-fs4rn2 жыл бұрын
👍 thank you my friend. How would you comp on an OD type 2 profile? The tip direction changes from a 3 to a 4. Use a tip 9 and program without comp by calculating the offset tool paths? Perhaps this topic would make a good video content. Thank you again.
@howtoshootstraighthtss49485 жыл бұрын
Can you also make another video explaining left and right tool compensation, I cant visualize the orientation. Does right means going right to left on the Z axis? And left the opposite? Or is it the tip of the insert?
@yadavdinesh82105 жыл бұрын
I like all videos sir...
@tonytan79754 жыл бұрын
very clear, thank you!
@HaasMill2 жыл бұрын
Can you explain how to set tool offsets for cutters that would be used for that kind of work?
@roninscholar45152 жыл бұрын
it is misleading to show the tools with larger (not sharp) radii as being larger than the sharp tool...additionally, you keep saying tangency point. Correct me if I am wrong, but that is an intersection. tangents are straight lines that "just touch" curves. And sorry , one more. You say G42 is for O.D. tools. This is true when you are feeding in the standard direction toward negative Z. If you reverse directions (like we like to do when deburring threads) it becomes G41, when you are feeding toward the face...
@egycamiprecisionmachining60114 жыл бұрын
thanks . it was really like drink cup of water
@blakejones1166 жыл бұрын
I’m a rookie at understanding the particulars unique to lathe programming vs. mill. I do a lot of mill programming on the OSP controls, at the controller but need a better understanding of Okuma twin turret lathe programming. Specifically nose radius comp. My understanding of G41 and G42 is left (41) and right (42). So if I apply this to a turning tool on the B turret, cutting z-, it would be G41 with the same tool on the A turret being G42. You described 41 as ID and 42 as OD, does this apply to tools in the B turret also, or should it be as I described above? I’ve also noticed guys inputting a negative value for their nose comp. and have a hard time understanding why. Are the inverting 41 and 42? I realize their are fundamental differences between Fanuc and OSP, but hoped you could provide some insight. Thanks!
@srdjan.djordjevic21 күн бұрын
What if OD and moving +Z? Is it G42 or G41?
@TEE196222 жыл бұрын
Yeah, that was too easy. I have a pulley with which i will be using an o/d groove tool (or button tool) which is .04 wide with an .02 radius. I'm thinking that using a 9 for c and specifying the .02 in the R column will allow me to program per the print and the figuring will happen per g41 and g42. On the front and back sides there is a contour called out for clearance or weight reduction. It also has radius/flat/radius starting near the hub and again as it moves outward toward the o/d. I am using a vnmg positioned as a face grooving tool with the same tool specs as for the crown. Does the seem to be the best method for the confusing issue?
@danny929806 жыл бұрын
Can you please make a video on how to write a Cnc for 45 degree angle please
@easytechlearningkf6 жыл бұрын
Very nice
@Mr1bassman14 жыл бұрын
Never trust anyone who can't be bothered getting the sound right.
@Bradlsx9 жыл бұрын
After u write the sharp corner program then u touch off tool and push measure in the offset settings but when u put in the radius number in r on the offset settings do u just push measure again for the radius comp but it's kinda hard for me to explain but wanted to try this for awhile maybe u know what I mean but thanks for any info
@tomnewton36408 жыл бұрын
Awesome 👍👍
@CesarGarcia-ms9zl8 жыл бұрын
mike Great videos they have been helping me a lot since I am barely starting to study this in my college course and I kind of need some help. I'm interested in knowing What type of program are you using on your Pc to write code I think this would help me a lot with my study
@tj93826 жыл бұрын
Cesar Garcia Hi, you can actually use something as simple as note pad if you write by hand. Then transfer to machine via a compact flash card. I use this method very often for short programs. Example: % O0001(FACE BAR) G21 G40 G95 G80 G28 U0 W0 T0 M1 G92 S3000 T0101 G0 G96 X? Z? S? M3 MACHINING HERE ... G28 U0 W0 T0 M30 %
@173roberto9 жыл бұрын
Great explanation video, but please I have a question, especifically I have many types of inserts in my job but I don't know how to correctly identify them but worse than that I have started programing the lathe but I do not know how to find the nose radius of my tools, how can I find this value?
@TomStikkelman9 жыл бұрын
Ro Cuevas On the back of the insert box you will see a number 331(.016 rad) or a 332 (.032 Rad) or a 333(.047 rad). Hope that helps.
@nagarajanpandian56625 жыл бұрын
Why do i get "interference in G41/42"
@MsRvinoth7 жыл бұрын
how to generate g code with radius in R value in mastercam? I got " I k" value while generate g codes . how to change I k to R value
@pharaun1597 жыл бұрын
Vinoth R add together and divide by 2
@ericbuaka7505 Жыл бұрын
Hi sir please can I get any g code simulator?
@joseluiov8 жыл бұрын
This format Works un a Hass TL 2 racing?
@173roberto9 жыл бұрын
I just have the insert :( I whish I had the box or some infomation. Today I broke an iscar groove turn GIMF406 because I don't know how to define the turning speed for grooving operations, where can I found a chart for grooving feeds and speeds?
@TomStikkelman9 жыл бұрын
Ro Cuevas Try this link: www.iscar.com/eCatalog/Family.aspx?fnum=203&mapp=TG&app=0&GFSTYP=M
@173roberto9 жыл бұрын
I have already tried but got only this chart: www.iscar.com/eCatalog/Grade.aspx?grade=IC808&item=6496970&fnum=203&mapp=TG That chart gives me the SFM value but I still need the IPR and the depth of cut. which I have found really difficult to get information.
@wisdomculture246 жыл бұрын
4min:08sec; what does code G0 & G54 stand for? what role do the calculations for "X" & "Z" axis stand for when it is expressing "G54".
@tghTHEmaster4 жыл бұрын
WADJET NINE g0 is rapid movement and G54 is essentially your zero or reference point
@ashishgoyal18167 жыл бұрын
why is it necessary to cancel the nose radius compensation command? what if we keep it on and close the program
@tj93826 жыл бұрын
Ashish Goyal if you don’t cancel it will still be active as it is modal. Then any subsequent x z positions will still be compensated. As good practice you should always cancel tool nose radius compensation as soon as you no longer need it. Furthermore you should always include a G40 in your safe start line at the top of your program so if you have forgotten to cancel then this will take care of it. Hope this helps.
@ashishgoyal18166 жыл бұрын
Antoni K thanks
@nobodyfromnowhere..9 жыл бұрын
I'm a machinist apprentice and I have a question. So most of machine shops use G41 and G42? Because my work, we always use G40. It does take longer time to program but it's easier and faster for the operator to set up. and do you know free or cheap cnc simulating program? that I could use to practice programming at home.
@buschbwbusch8 жыл бұрын
+Gillby NC Plot--Free Trial easy to use does mill and lathe
@nabileskandar19257 жыл бұрын
Can I combine G41 or G42 with the roughing cane cycle G71?
@pradeepr7607 жыл бұрын
sir can u send link for master cam
@davidmorales6636 жыл бұрын
Awesome... one question can you apply that G42 if using a canned cycle??
@TomStikkelman6 жыл бұрын
Davincy Morales Yes you can. I need to put a video together to explain how. Thanks for your feedback. Tom
@pradeepr7607 жыл бұрын
sir when doing programing can we mixe absolute method and incremental method
@tj93826 жыл бұрын
pradeep R Hi, yes you can, I do it all the time, it’s very useful in certain situations.
@sciencetechandentertainmen4298 жыл бұрын
it is necessary to write g54 or it is worked with simple wcs offset ????
@tj93826 жыл бұрын
Nilesh Rajput Hi! G54 is usually the default offset on many controls, but the rule in CNC is never assume and always check.
@yahye6747 жыл бұрын
Why is this in the code at the end G28 U0 V0 W0 M05?
@l30n77887 жыл бұрын
Rusty Shackleford that is the home position for x y and z
@Aletaire6 жыл бұрын
It should just be G28: for Home the tool, U0: Machine 0 in the X axis, W0: Machine 0 in the Z axis, M05: Stop the Spindle. He included Y axis in a lathe video probably accidentally.
@realsangrado40496 жыл бұрын
Rusty Shackleford G28 IS FOR the tool to return to where it G0 in while the U,V and W is the amount of off set in this case none and the M5 I is to stop the spindel
@realsangrado40496 жыл бұрын
Robert McEwen BNE-51
@paulpelletier94226 жыл бұрын
never seen a lathe with a y axis?
@losultan8 жыл бұрын
Hi Tom, is that same in cnc swiss lathes? How I will decide tool direction? Thanks.
@billklatsch50588 жыл бұрын
+losultan The image seen at ~5:10 should be valid for revolver behind rotation axis. *If* your machine has the revolver in front of the C you have to to flip 2-6-1 with 3-8-4 also you are not righthand side of your contour anymore. Everything without warranity - check your maual in doubt.
@losultan8 жыл бұрын
+Bill Klätsch Thanks for your comment, it will be helpful.
@joseluiov8 жыл бұрын
Do we can use TNC with G 70?
@tj93826 жыл бұрын
Jose Ortega Hi, no because G70 refers to numbered lines in G71 or G72
@jarisipilainen38754 жыл бұрын
6:32 becouse G41 need clearance 2xTNR. what if there is no that much on 99% parts we made lol. yeah. tool too big for job? no its correct size and if calculate compensation there is alot room LOL and even using compensaion it wont stop you need calculate something. thats most stupid on it. so better not use G42/g41 and calculate path. and why inside part you call home position and U is first. not crash???? should first rapid out from part???
@maltphilistine9237 жыл бұрын
What compensation (G41 or G42) would you use when cutting a radiused groove in the face of a part?
@TomStikkelman7 жыл бұрын
It always depends on the direction of the tool path. Line Left is G41, Line Right uses G42. Thanks.
@maltphilistine9237 жыл бұрын
Thanks
@santoshbasantia33335 жыл бұрын
audio not good
@jarisipilainen38754 жыл бұрын
i never use G41/G42 there is EASY SECRET MAGIC formula that nobody knows (1-tan(angle/2)) *TNR it will give you z compensation (1-tan(22.5))*0.0628=0.366. excactly as is shows on first 45 0.1 corner. with 0.0625TNR just move it x1 z-0.1366 AND you done this on CAM for sure lol i know becouse there is no Z0 but i also calculated first x. by 0.1366*tan(45) double that and subtract from 1inch OD x0.7268 z0(replasing x0.6927 z0.017). you even go actually x0.8 z0.1 g1 z-0.0366 x1 z-0.1366 perfect 0.1 corner x1 and x0.8 excatcly readable and magic 0.0366 number I NOT USE CADCAM I NOT USE G41/G42. becouse i can calculate same path
@princeuy80214 жыл бұрын
@Jari Sipilainen pls explain clearer I would like to understand more of what you mean. How else can I contact you to ask you further on this formula, to clarify.
@MF175mp2 жыл бұрын
@@princeuy8021 that is very basic trigonometry, you can probably find maths lessons related to it pretty easily on KZfaq
@MF175mp2 жыл бұрын
Another option is to use the center of the radius as the programming point and generate the program for a profile offset by the amount of TNR. Solves everything but the numbers aren't real anymore