"this steady rest I made for this part" -- points at about 500 lbs of steel...

By far the best cnc related channel on KZfaq

I'm a machinist and do general machining and build special equipment. My own shop for 36 years. Learning something from every video ! Great job and keep making videos ! Brian

I just found your channel last week and I have been slowly going through the videos you have. I've been machining for almost 25 years now and I wish I had ran into someone like yourself during that time. You have a wealth of knowledge that is rarely seen. Thanks for the videos. And I might add, that steady rest is stunning. Great work!

Machinist for 40 years and I'm still learning good stuff from others!

Love how machining is 90% setup 10% making chips!!! Id say keep up the good work but I don't think you could do a bad video if you tried!!! Seeing such talent only entourages me to get down in my shop and make parts!!

Just retired after 36 year aerospace career. Have machined anything you can make an aircraft part out of and I don't miss the exotic stuff. Inconel, titaninum, every grade of aluminum you can imagine. Your home made steady rest is a work of art...

WOW 11/10 for that steady rest 🙌 that's what I call craftsmanship

That steady rest fixture looks amazing. Nice job.

Thank you for taking the time to record this. Very informative.

Amazing videos. It's always interesting to see the specialized work you do.

Really great video Peter, very informative. It was easy to see how far that hole drifted when you turned the part around, it even looked like the face was off after centering that second hole. Impressive work on that steady rest too. Thanks for sharing.

Need a special steadyrest, no problem. Just make one. Need a special adjustable chuck, no problem, just make one. You are simply amazing. Nice work. Thanks for sharing.

Enjoyed the video, Peter. Always fun to see how you machine the tough jobs. -- Cheers, Gary

Peter, I'd love to see some videos of that part being machined! Pretty amazing job.

Absolutely beautiful work! Subbed. I machine parts on my home lathe and mill so I'll be watching your other videos. Thanks very much for sharing your time, knowledge and experience. Take care.

There is nothing like a tradesman that knows his job REALY well!!!!!!!!

Great video and the way you are setting up your part to machine it true to the bore is very similar to the way that I set up a rile barrel for machining it to keep the bore to be true with the threads and the rest of the machine work for mounting in the receiver so they will shoot accurately at long ranges. Keep up with your video's they are very good at showing good sound machine work.

Love your videos!! Amazing work!!!

Thanks for your time.

Nice video. Thanks for taking the time to make it.

Good lesson of order of operations . Thanks

You have amazing skill and knowledge.

Nice work Peter, very interesting how you solved that problem.

Holy shit, that steady rest! Is there a video on that somewhere?

Thanks for sharing another good video! It seems to me that you get to do a lot of fun jobs.

These parts you make are crazy

Thank you very much! I learned a lot of skills.

Just a very basic question about the intergrex control, do you happen to use G54, G55...and so on for work offset, or useG53.5, the Mazak work shift offset? Thanks for all your wonderful videos!

AWESOME VIDEOS PETER, Would love to see you program this part.

amazing work, I could do a complete head stock turret alignment in 4-6 yours on cnc lathe, on a live tooling lathe alighment might take two days

Love your knowledge base. Thanks for the video. I wonder if it might be possible to share the file for the steady rest. I have nothing as large as your machine, but a scaled down version might be fantastic for my little VMC running a 4th axis. Thanks again.

Similar situation way-back '67-'69 at Hydraulic Research. We made Push-Pull Assembly for Bell / Textron. We would finish ALL lathe work 1st, seal & oil ring groove, threads, etc., with Tracer Lathes (B4 NC Tape). The gun drill was just behind my lathe. Thru bore, Collet on each end! They had offset fixtures, each end, indexed for each ".156 hole x 4 each, then spin each P-P Rod at a slow speed, causing the 36" deepest drill, first, to seek center of rotation, eliminated the drill drop! Inspection, every hole! Very High "PASS" rate. Old Skooled ~ Just thinking. 🤔

That steady test is a piece of art on a par with Clickspring's work. That said, just the knobs are probably 3x the size of anything he's made.

Good Stuff Peter

Love your videos, do you factor in the cost and time into making the follow rest into the job, how many of these part do you make to justify the follow rest?. Just wondering how old is the lathe.. really impressed with the quality and attention to detail you put into your work. Thanks Dave

Kinda wondering what the run out was on the live center. Good work on the steady rest. These newer machines for production don't have any mounts for them.

DOUBLE, AWESOME!

nice job peter 👍👍👍

Hi, I noticed that you took small cuts to get to core material, inconel is a austenitic nickel-chromium-based superalloy should you not take a deep cut so that you can get under the crusty exterior to prolong cutter life? Depth of cut is the setting that is less cutter edge destructive then feed and finally speed.

So clever. Thanks.

hello, nice video ! it would be nice to show that the cnc is properly aligned ; for example S axis is concentric with the live center, regardless of tailstock position on the slideway ( or at least for the position used when machining this part ), and also that the tailstock is not moving when clamping the part, because of the pushing force and cnc wear; thank you !

That Steady Rest is a beaut

Interesting video. Just a thought but would making custom extended jaws for the four jaw chuck be a better option than a 3 in a 4, so you could work just far enough away from the head stock to avoid clearance problems and have minimum overhang.

you are just amazing

Your channel makes me miss my Mazak. Where I'm at now has DMG Mori machines and they suck so bad.

If the gun drill wanders off center some time after the start, doesn't that mean the bore itself is no longer straight? You can turn the OD concentric to an axis through the center of the entry and exit holes, but if the bore isn't following that axis...

AWESOME!

I used to single point bore the 60° center hole with the compound rest set on 30°. That was on manual lathes though. It was more accurate than center drills. We also had shafts that were sent out to be gun drilled and brought back for finish turning. They were only gun drilled 3/4 of the way though, so we used an ultrasonic wall thickness meter, and offset the chuck end in a 4 jaw chuck to get the hole running as true as we could, then finish turned the OD. First thing was to set it up on a steady rest though and single point bore a 60° center chamfer for the tailstock center to contact.

Great video Peter. I know you did the milling of the center manually but I believe I’ve seen you program it before. Do you use G68 for that or G112 or? Was just curious what the code would look like. Seems like a really good way to get a center perfectly true.

If you are going to remove too much material from the stock, why did you aligned too much?

Good camera, thanks

I don't understand why you didn't engage the tailstock in the newly cut center, before turning the qualify/handle OD (?)

pls share some on milling also.

Impressive steady rest. Do you have a video on you making it?

Great video

Great job. Your channel is my favourite CNC channel and the best cnc channel in KZfaq.your works are great. But that interapit is tenth indicator or thousand indicator?

That is a seriously good solution regarding the steady. Mazak steadys are pathetic. Very impressive.

...mill your 60 degree chamfer into both ends... ...turn a center in the chuck and mount the part between centers... ...if the bar is straight it should turn true to center full length...

Have you ever done an air gauging video? Always been curious to see it done.

That is one sexy steady rest!

Can we go without countering operations, like adding drive hole strategy on both face end?

Hi I'm new to machining. Is there any reason why you would not turn the part on centers since the hole is drilled all the way through??

Your a CNC ninja

The anomaly in the turning being concentric with the bore probably has a lot to do with the unsupported stock flopping around back in the spindle while turning the ends, (why we use spiders when working on gun barrels)doesn't it?

I have tried using a gun drill for the first time and did not succeed. Working with aluminum on a HAAS EC-1600 horizontal mill with internal coolant at 1000 PSI. The drill is Ø.316" and I'm trying to go about 16" deep. As the spindle went on, the drill went flying. Should I turn on the spindle after its in the pilot hole? or maybe start at a slower RPM, go in the pilot hole and then bring up the RPM to its cutting speed? I don't know. Any advise from you I'm sure would be very helpful to me.

Nice steadyrest you've made. I could use that on my machine. Working on a E-500h too. (guessing you are too)

Hi Peter, Really nice work, especially that steady. Just a suggestion, why not get the guys who did the gun- drilling, put a center in the hole, would have saved you a lot of grief.

Impressive from start to finish. 👏 I have a question although I realize this video is years old. The question is about quoting a difficult to manufacture piece, such as this. It looks like you are in a multi-department facility, that may have someone quoting parts, that isnt you. Do you givw input on the hours required per part? Or do you get a time limit with your work order? Or do they just give the go ahead and hope to make money? Thanks.

Hi, Could please advise if there are any device that can check the wall thickness of gundrilled hole when part is drilling in gun drilling machine? Please help to introduce the model of this device. Thank you for your support.

I have a project needs to be done soon, how can I reach out you guys ?

I'm pretty much a rookie at machining but couldn't you put the rod between two center spindles and used a lathe dog to run true to the bore take a few passes then chucked it up for the remaining turning.

Daniel Machado - Brazil.

I wonder if there is not another technique that you may consider. Make yourself a dummy center piece. Turn a piece of suitable stock about an inch in dia. Centredrill to the depth you use normally. Then turn a "tit" the size of your gun drilled hole about half an inch long. Then part off. Then in your cnc machine chuck a piece of stock and machine a matching "tit" but keep the shoulder diameter to a minimal dia so it does not "throw off" the job under pressure. You may need to use a driving dog but you can now turn the part to a concentric size at the tailstock end and also put in any detail to run the steady near the chuck end etc. When you have run thru one end of all the parts you can now go thru and chuck in a conventional manner on your concentric and aligned diameter and using your steady detail the other end with permanent center hole etc. There is no messing about clocking your parts. I use this method aligning the bores of hydraulic tubes as they need to be concentric to run a steady when internal boring and screw cutting, the raw tube is nearly always variable in roundness and concentricity to the hones surface.

Excellent video Peter! Your steady rest is awesome. The machining looks great! Like everyone else, I would love to see this part being machined. Did you receive my email? Thanks for the for the great vids!......SKI

Do you use ceramic inserts for inconel?

Could you use an OD grinder for something like this ?

friend, tell me, do you work at the factory, or do you have your own workshop? thanks!

Be better off on a hollow spindle with front and rear chucks. True it up like gunsmiths do. Put a long gage pin in the hole and indicate up and down the length. Still gonna be hard to get something that long totally concentric.

Thats some crazy long gundrilled holes in inconel.. that steel is a bitch hehehe love watching your videos.. i learn stuff in every video :) and nice steadyrest you made..

Why are you not using a ROHM face driver that would have been a lot easier turning on center And also what’s your run out from your main chuck to your little chuck? Ever thought about pinch turning this part

hi, you can turn with B axis on 45 degrees then, it gives more clearance to the chuck , so tools can be shorter, not need to use, but requires proper tooling. I seen on your videos that you use only 0 and 90 degree of B axis for turning.

You made the steady rest? Very nice 👍

What CAM software do you use?

Min 2:15 ''You might be wondering why I have this little chuck''.....an 8-inch three-jaw chuck....😊

10:30 what's the milling spindle RPM ?

Any reason you didn't turn it between centre

Haven’t seen before. Brother, I hope you know that you make the kinda parts engineers and buyers can’t get off their desks. The difficulty! Inconel ? 3’ long and hollow. Cocking the B Axis to mill, dry ? In Jog ? You should have flown the space shuttle or something. You’re way too smart to be a machinist! 🙂

what metal is this?

That stock inconel material probably cost more that a liver... :-)

Dont forget to calculate for the the contour of the earth😂

Prob cause of it tinsel strength to make it out of that plus what you said but it’s immaculate with its tinsel strength is with out heat treat but it’s a pain in the as to cut you have to go low on your feed rate and spindle speed I mean they make tools to go faster and take a deeper cut but if you dnt have a budget for that then what I said works best trust me no deeper then a .020 depth of cut no Moore then .005 feed rate and no more then a 200 constant surface footage you be fine with a bs insert or the sfm trust me you will do for and make atlest 100 parts with taking off .500 of stock off it I wish I made a channel on my last job I programmed set up and operated a tongti cnc lathe with live tools no y axis not that be a problem anyways and I learned to use fanuc manual guide I conversational it’s very similar to mazak conversational

so this is mazak engineering isn't it ? why don't they build the chuck a few inches farther away from the wall or the body so you wouldn't accidentally crash in

inconel yucky

why use that machine for this work? its too simple for a multiple axis......when the boss have cash, i guess, can waste time :P

Hi, there I’m Mark from Dalian Xinlei Company. We mainly manufacture Solid Carbide Gun Drill and other gun drill. Here are some pictures of our products. If you are interested I’ll call you to communicate more details. dlxlqz.com is our website. You can take a look before making decisions.