I have watched multiple videos on this subject but none of them has been as clear as this. Thank you for spreading your hardly earned knowledge Sir. You’re just an angel!
First Let me thank you for your clear explanation you did in each parameter of the G76 Canned Cycle. Second I would like to ask if possible an explanation on how to program a multy entrance thread.
I have learned a lot from watching your videos, But in every threading video I have see or forum I have read no one discusses how to control the retract. I am trying to do 3/4-10 ID thread and this is very important in my application and having trouble with i
Can you make a video on how to chase threads on a cnc lathe after a part has been unchucked or for repair. How to find your lead thread and how to make it cut correctly?
I love that you actually explain things this is going to help me alot...so can you use a g76 cycle with a departing tool to take diameter of stock down as well?]
very new to CNC set up and CODE,,, been making chips by hand for a while but i bought a cnc lathe with a FANUC-O control that uses U and W,,emco lathe with ATC,, a video on how to set up part would be great help! Do an OD tool in X and Z, do a center (spot) drill , ID and OD part to tool set up using the geometry page and the offset page would sure help,, great teachings , thanks
Tom Stikkelman ive learned a great deal from you,, you explain things very clearly and slow enough a person can catch on,,, i truly enjoy all your videos!! I have VERY LITTLE info on my lathe set up but with 4-OD tools and 4-ID tools on an 8 station ATC is what im dealing with,,, the lathe also has tapping ability,,, anything and everything you can think of from set up of the raw-stock to geometry page numbers and wear page numbers (i work in absolute programing) i have an emco pc-55 II lathe about 12yrs old-like new, G97 is default, all straight forward fanu-o,, i thank you ahead of time sir !!!! Again,, thanks so much,,,, no one else would help !!!
a very precise and detailed explanation as to programing a thread, I am a Mach 3 user and its not a very easy "wizzard" to use, how can I import the program into Mach 3? thank you very much. john
Good work but a fiew question none movie does not explain how to improve the tight thread without losing the whole day on the repetition of the whole cycle of the program? long screws supported by a knife and tailstock for CNC probably do not exist? work tools on several successively forming part of the process of processing the thread with long screws on manual machines is the norm thread 90deg (flat) 3 tools (grove, left side ,right side) for deep trapezoidal threads min 2 tools(growe,final profil) is there a way to set a number of tools so that they can work as a team next opetion in proces threading? how do trapezoidal thread flat, asymmetrical, multi pass snails
ok so I'm a mill programmer who has had a SL-35 dropped in my lap. I used your video to figure out how to write the thread program. It put me on the right track but I'm having a fundamentals issues. my thread flank is to wide. what controls that width? I'm guessing insert or maybe speed? any help would be appreciated.
Do you know how to program a figure eight grease groove in the bore where a boring tool would plunge in at say Z-.5 and keep threading back and forth in z while increasing depth after 1 pass in and 1 pass out until the groove is to depth.
Hi Lee. Yes, instead of starting your tool at the major diameter of your thread and stepping down in a X-minus direction you would start your thread at the minor diameter of your thread and stepping up in a X-plus direction. Hope that makes sense. Thanks.
Great explanation and videos! How would you thread the following: threads on both sides of the part separated by a larger specified OD. I know you would use a LH thread tool and run the spindle CW but how would you program it in 1 setup?
its just same as you see but start point and end point is different. M3 and M4 depending what tool use and if want do right handed or left handed thread. you can do RH tool right handed and left handed thread just switch where start and where end even it wont cut properly :) if you normally run RH tool with M3 from like you see this video. you get right handed thread.if you want right handed thread behind bigger OD you need second RH tool and attack it machine other way and run it from back side using M4 you get right handed thread. you can use same toom in same orientation if it fit to run it. you only need cut groove where it start thread so it not plunge in part :P there is also thread inserts for grooving tools. so it would fit better behind OD just make relief both ends.
Hi Tom, using this at my job too. Doosan 220 series. Fanuc Control. Why does the controller not accept the decimal on R? We are machining Radius ( R 0009) holding .0004 tolerance. Pitch. Need to adjust the R in the program as no offset for R.
What control is this for, FANUC? we have a Doosan at work and it uses a 2 line G76, it has a FANUC i-series control, is this the proper code for that machine. I have been skeptical about writing a thread cycle longhand on that machine but have used mastercam on it before. i am comfortable programming threads on Haas, but they use a 1 line G76 and the values are much different.
+Sandman Actual Yes it is for a Fanuc and should work on your Doosan. Have you tried this format in your Doosan lathe? You can just dry run it and see if it will run. Thanks for watching Sandman. Tom
Tom Stikkelman Well, I've seen the code that Mastercam posts and it produced a 2-line G76, Comming from mostly HAAS lathes I just wasn't sure what all of the values meant, especially the pxxxxxx. Your video did an excellent job breaking it down, Thanks.
Depends on the FANUC.. there are three types... G78 does the same thing in the 21TB (type 3, GE series) I've programmed. www.helmancnc.com/fanuc-g-codes-list/
tom I have 2 lathes I want to get cnc lathe what book can you recommend I can get and study and what cnc lathe would you recommend I get to start out with
hello sir, i have a kingston machine type CL38C. i have a problem with the alarm code "ex 1034 2nd turred not inposition" what is the solution ,, i expect your answer
+hiran thush The WORKSHIFT works opposite from WORK OFFSET. Make sure to use a G54 offset in your program and then make your adjustments in G54. A positive offset should make part longer.
The only thing you will have to do different is make sure your x value in the lines before your G76 line is smaller than your drilled or bore size. I usually go .100 smaller depending on the depth of your thread. It has to have retract clearance or it can rake back across the threads when it comes out of the bore each pass. Hope this helps!
I thing samthing rong. see. haf inch dia metar =12.7-.4405=12.2595 ok then 12.2595÷2=6.12975 ok but you put there p297 why im not andastand can you tell me what is resan that.
I'm not sure where you are getting the 12.7. The outer diameter is .5 inch subtract the minor diameter and divide by 2. Written out in arithmetic it is (.5-.4405) ÷ 2 = .02975 inch
+Tom Stikkelman Hi Tom, you do a great job explaining. I"m having trouble writing code in Mastercam to Mach3 for internal threads. I get error messages in Mach3 mostly saying "Bad Character in Line ...". Do you show any videos explaining how to do this. Thank You! Tex Clauss
+hiran thush If the thread is too big then you can make a tool offset change and restart the threading operation, as long as the chuck or collet has not been opened.
