Great video! I appreciate you showed us how the job setup is done. I need to run an citizen L16. Although I know to setup and program common cnc lathes, I fell I know nothing about swiss. Can you show us in detail how to setup the took offsets?. Post the L16 we have runs a Mitsubishi control, I just want to know how do I find the offsets since there is NO Handle!
Well done Mike, impressive. I'm relatively new to Swiss style turning and you seem to be very well versed. I'm currently having some issues on a new Citizen L20. I'm going to post the situation in hopes that you or someone else can help. Thanks in advance. We've a brand new Citizen L20 and we're having chatter issue when turning. It's the first part we've tried running on the machine. The material is 8620, 11mm stock OD, 6.3mm finish OD, 28.75mm OD length. .01mm total tolerance, .8 finish requirement. The 11mm stock is necessary due to a 10.1mm OD beyond the 6.3mm OD. The stock is precision stock although it doesn't appear to be polished. I've tried using a CCGT .4mm nose radius(Sandvik), VCEX .1mm nose radius(Sandvik) and currently a 3 series DCGT .2mm nose radius(Kennametal). The tool is on center. Any thoughts/suggestions on tooling? Current cutting parameters are 2000RPM .075mm/rev. 226SFM is slow, if I increase the RPM chatter comes into play. The chatter isn't always consistent either when running higher RPM, I've seen the first 3mm of the part be acceptable then chatter the remaining length. I should also state that we're milling a flat on the part past the 6.3mm OD after the turning operation using a 6mm solid carbide end mill and you can see the back(bottom) of the end mill is dragging once the end mill is fully engaged, combined with the chatter issue it makes me think something is moving, lack of rigidity? Using M18 C0. in the program, couldn't find anything on a possible C-axis brake. The part is currently running with no taper. The guide bushing has extended land pads and from my understanding it's set correctly. I can hardly move the stock back and forth by hand through the gudie bushing, I'm able to rotate the stock by hand when the guide bushing is locked. ANY THOUGHTS/SUGGESTIONS ON PROPERLY SETTING THE GUIDE BUSHING? The main spindle(Z1) is as close to the guide bushing as possible when in production. I indicated the stock that was extended past the guide bushing, it's running true(concentric). I took out the main spindle collet and it appeared to have witness marks all the way around the front edge of the collet only, almost as if the stock spun in the collet and is only making contact with the very front of the collet. Any thoughts/suggestions? When I get back in the shop I'm going to run a short bar currently we are running 3 Meter bar length. I want to see if a short bar eliminates the chatter. I'm also going to make a temporary program that only skims the OD to see if less tool/machining pressure eliminates the chatter. What's the best practice to indicate the sliding head/turn tool to make sure it's correct? Any help/insight is greatly appreciated.
Hey Great vdo 👌 I need Carbide guide bushes and collets for Star Rnc 16 and Citizen L16 machines whether used or new. Any help would be appreciated .. reply or inbox
Well done! Do you or anyone else out there know where I can find a video with voiced instructions on setting up a citizen L20. I want to learn this more than anything and it helps to have them say what they are doing.Thank you or anyone else for any information you can give me.
+Robert Mittag HI, I don't know of any video. Guess I could make one in the future when I have the time. I can try to go over one section at a time I guess. I will let you know if I post one.
+FlyBoyMike1000 I really appreciate your reply, thank you so much. Yes please, if you do make one let me know. You do great work and I know I could learn alot.
Yes. However they run slower. They hold +- .0002" ok but not consistently. Holds best with shorter length work and turning feed rate down to 50-75%. Will hold .003 +- all day at a slower speed.
And that boys and girls is an L20 well taken care of and looking almost new
Well said,i did my apprenticeship exam on a Star SR-20J while my other 2 colleagues did it on a L20 that looked like it was bombed in ww2 lol
Mike your L3 is in great condition! Oh good video
Thanks! Some at the shop are beat up more so but this one runs and looks just fine for what it is.
What do you think is the most suitable glass program for cnc sliding lathes? Which program would you recommend I get?
This music makes my job look amazing
I’m feeling this
#siwssmachinistlife
Great video! I appreciate you showed us how the job setup is done. I need to run an citizen L16. Although I know to setup and program common cnc lathes, I fell I know nothing about swiss. Can you show us in detail how to setup the took offsets?. Post the L16 we have runs a Mitsubishi control, I just want to know how do I find the offsets since there is NO Handle!
@flyboymike1000 do you happen to have a back-up of those parameters? I could really use them. Thanks!!!!
hello I have an L16 cincom lathe.But I really have a problem settiing the tool offsets and machining data. Can you help me? I ge the Ex101 T alarm
Good Job Bro.
+Sarbjeet Singh Devgan Hey thanks!
How did you touch off your tools before the material was in ??? Good video man thanks.
Dr.Dave you can't unless they were in there b4. always have to touch off on stock or use a gage pin with same diam.
MC data already had it in and it compensated from last job.
Well done Mike, impressive. I'm relatively new to Swiss style turning and you seem to be very well versed. I'm currently having some issues on a new Citizen L20. I'm going to post the situation in hopes that you or someone else can help. Thanks in advance.
We've a brand new Citizen L20 and we're having chatter issue when turning. It's the first part we've tried running on the machine.
The material is 8620, 11mm stock OD, 6.3mm finish OD, 28.75mm OD length. .01mm total tolerance, .8 finish requirement. The 11mm stock is necessary due to a 10.1mm OD beyond the 6.3mm OD. The stock is precision stock although it doesn't appear to be polished.
I've tried using a CCGT .4mm nose radius(Sandvik), VCEX .1mm nose radius(Sandvik) and currently a 3 series DCGT .2mm nose radius(Kennametal). The tool is on center. Any thoughts/suggestions on tooling?
Current cutting parameters are 2000RPM .075mm/rev. 226SFM is slow, if I increase the RPM chatter comes into play. The chatter isn't always consistent either when running higher RPM, I've seen the first 3mm of the part be acceptable then chatter the remaining length. I should also state that we're milling a flat on the part past the 6.3mm OD after the turning operation using a 6mm solid carbide end mill and you can see the back(bottom) of the end mill is dragging once the end mill is fully engaged, combined with the chatter issue it makes me think something is moving, lack of rigidity? Using M18 C0. in the program, couldn't find anything on a possible C-axis brake.
The part is currently running with no taper.
The guide bushing has extended land pads and from my understanding it's set correctly. I can hardly move the stock back and forth by hand through the gudie bushing, I'm able to rotate the stock by hand when the guide bushing is locked. ANY THOUGHTS/SUGGESTIONS ON PROPERLY SETTING THE GUIDE BUSHING?
The main spindle(Z1) is as close to the guide bushing as possible when in production.
I indicated the stock that was extended past the guide bushing, it's running true(concentric).
I took out the main spindle collet and it appeared to have witness marks all the way around the front edge of the collet only, almost as if the stock spun in the collet and is only making contact with the very front of the collet. Any thoughts/suggestions?
When I get back in the shop I'm going to run a short bar currently we are running 3 Meter bar length. I want to see if a short bar eliminates the chatter. I'm also going to make a temporary program that only skims the OD to see if less tool/machining pressure eliminates the chatter.
What's the best practice to indicate the sliding head/turn tool to make sure it's correct?
Any help/insight is greatly appreciated.
Sounds like bearings in GB housing are shitting out... if I read it correctly. Did you ever figure it out.
Make sure your turning tool is on or even slightly below center. If you are above center it will rub on the part causing chatter.
@@brandons9138 thats what I was thinking, off center .
Hey Great vdo 👌
I need Carbide guide bushes and collets for Star Rnc 16 and Citizen L16 machines whether used or new. Any help would be appreciated .. reply or inbox
jesus that thing is ancient. does it even have special g commands?
Well done! Do you or anyone else out there know where I can find a video with voiced instructions on setting up a citizen L20. I want to learn this more than anything and it helps to have them say what they are doing.Thank you or anyone else for any information you can give me.
+Robert Mittag HI, I don't know of any video. Guess I could make one in the future when I have the time. I can try to go over one section at a time I guess. I will let you know if I post one.
+FlyBoyMike1000
I really appreciate your reply, thank you so much.
Yes please, if you do make one let me know. You do great work and I know I could learn alot.
RUclips Master Task 2008. Not sure if its all one word or two.
Robert Mittag did you ever learn how?
That looks nothing like the Citizen L20 I set up and run.
Thats because this one is old as shit lol
Are these Swiss machines any good?
Yes. However they run slower. They hold +- .0002" ok but not consistently. Holds best with shorter length work and turning feed rate down to 50-75%. Will hold .003 +- all day at a slower speed.
Could have TAUGHT us how bro
bboy1481 need to learn Swiss?
This video is meaningless for new people like me. I don't know what yhe hell he is doing
And here I thought this was going to be setup tutorial. Soooooooo disappointed 😞