Need to cut a Trepan or Face groove? Check this one out. 

I appreciate you tuning in.

Thank you very much.

I understand the comment, but have also spent considerable years doing valves and o'rings. If the area geometry of the groove and area of the cross section of the o'ring are ever the same, something is wrong. It is my understanding the best compression still leaves a small area on each corner untouched. Just for the reason you point out. Another thought is that breaking the outer edges also reduces the cut potential on the o'ring during installation.

Straight off the shop floor. Thanks for watching.

I appreciate the comment.

Thanks Razor. I appreciate the coment.

You'll love it. It was the first thing I made every time I changed a job.

Awesome. I hope that earned me a subscription.

Thanks Jim. I like these grooves.

Thanks John.

Joe Pieczynski

Thanks Alan.

Thanks Jerry.

I am a safety fanatic. it only takes a minute to prevent an injury that could last forever.

"No Dwell, No Yell"

Just enough will serve you well. Too sharp is a no-no.

I may have slowed the RPM just a little for a 316, or 304, but the tool would have delivered the same result. Just keep it cutting. As soon as you hesitate, you have an instant problem.

Thanks Bob. Pinching an O'ring is, a bad thing.

Glad you like them! Thank you.

I agree; old retired guy here. Looking back, I loved working with guys like Joe, that would share knowledge. I learned a lot talking to the guys making my parts; in the long run, machine shops would give me better bids, and I would design better parts. The company (purchasing) never liked us talking to the vendors, and the other engineers looked down on the practice. Those attributes never made any sense to me.

Thanks

Hey Chuck. Post a walk around video of that project. Short 2 minute 'look see'. Post deep details as a follow up. We'd all love to see it. Good to hear from you.

Kennametal is my source for over the counter stuff.

I have fancy insert tooling for this, but I have many hours with the HSS tools so thats what I posted. Rigidity is key on this operation. Gotta keep the tool cutting too.

Thank you

Thanks. I did it by request. I have lots of experience doing these.

Patience and clearance. Keep pressure on these tools and don't dwell at the bottom.

It only takes a few minutes to make and you'll wonder why you didn't do it years ago.

I agree with all your details, but wonder why you would feed with the compound? I am sure it would work, but have never seen a compound used for a feature inline with the spindle.

Thanks for watching Chris.

This was done by request. Thanks for watching.

Thanks for watching.

Uncommon feature, but good tips here. Thanks for the comment.

Very true. Did a bunch of years in a screw machine shop myself. The era of hand filed cams for the old B&S machines. It was a real art, and pleasure to watch those guys work.

Glad to help

Glad to help.

Good morning Mr. pieczynski

2nd try, Morning Mr. Pieczynski, my comment / question is not machining related. It’s an ‘old’ guy problem. I’m in my very late seventies, still in somewhat good health, except for hearing. I use an excellent brand of hearing aids for learning Machining, I find your tutorials to be one of the tops of all the many others on YT. I find myself not able to increase enough volume on some of your tutorials, usually those out side of the workshop area. All audio is transmitted via Bluetooth from Android to hearing aids. I have increased the volume levels on both, to their maximum levels on my units. I believe a a Bluetooth microphone would probably solve that problem. I would be happy to donate a Bluetooth microphone if you could advise me if your audio equipment will support it, along with a brand name & model number of a compatible microphone. I’ve viewed your YT’s almost since your coming online. Thank you so very much, old guy in California.

Thats a must for any chuck.

@@joepie221 Haven't seen one anywhere near this detailed. Do you store the chuck on the wooden sled?

That chuck block is awesome. Make sure you have just a small offset below center so the chuck lifts up off it when you engage your cams or threads. That way it come out.

Thanks Chuck.

I appreciate you watching and taking the time to comment. Thank you.

Thanks. I try to be thorough.

Thats a perfect application for a dovetail groove. The o'ring will be trapped by the geometry and function normally.

Keep the tool extension to a minimum and don't be afraid to push it. Good luck.

Its a real back saver. Easy to make too.

Thanks for watching Barry.

Knowing why is just as good as knowing how. Thanks for watching.

Glad to help. It was a good topic. Best of luck in your effort.

Thanks for watching Stan.

Glad you liked it!

Thank you.

Thanks TW👍

You can feel a good tool cut and it doesn't take much to keep a good pace. Definitely don't wait around at the bottom of a feature for applause.

I was taught early on, and have always believed, that turning a tool blue or red is not suggested. So I stay away from it. I am getting a lot of feedback that says it doesn't matter. I recently watched a video that showed it doesn't. I'm old school and will continue to keep my tools cool and not change color. Your call at this point.

My machine is setup pretty sweet. A walk around has been requested before. Not a bad idea. Thanks for your comment. I'll try not to lead anyone a stray.

Use it with a through rod as a carry handle and changing chucks just got easier. Safer too.

I will

Thank you.

Thanks for watching.

I'm definitely going to borrow that idea!

I actually like to cut these. Thanks

I only touched on Manual Machining during my apprenticeship as it is all CNC based now unfortunately. I find your videos fascinating. setting the compound video is so simple yet so clever.

Thanks Matthew. I have never operated or programmed a CNC lathe, but my CNC mill skills get stronger all the time. Actually, the day my Fadal 4020 was delivered to my shop, I didn't even know how to turn it on. ( good thing my wife didn't know that !!)Having a good manual foundation is a very good place to start. I appreciate the comments.

You're not missing out on much Joe. Anyone can put ,A31.22 into a program but not everyone can use Trig or set a compound. completely agree on Manual Machining being a strong foundation. No one can argue the fact we keep learning in this trade.

Good point!

Good luck. Thanks for watching.

TOT is one of my favorites as well. His videos are well planned and executed.

Thanks Greg. We were just talking about that very thing, yesterday.

I know a guitar maker who has 10 students 4 times a year for 2 weeks. $3000 each. Do the math. There are lots of folks really wanting to learn.

It was a serious comment and conversation. The trade needs resources.

Hey Phil. I made a dead blow stainless steel hammer for a surgeon recently. Good project. Thanks for watching.

Good luck getting back up to speed. thanks for watching.

Thanks Pat.