BORING ON THE BRIDGEPORT MILL part 3 Criterion Head tubalcain

[@jaketank3217]

I came back to this video again Mr Pete, I needed a little refresher. Thanks!

[@parkerguns]

What a great instructional video. I have enjoyed it and as someone else mentioned your voice and style of instruction is great please keep up the good work you have done a super job with this video! Earle

[@Bevoin1970]

"Bridgeport" one of the most universal, and useful of machines in any busy toolroom. I couldn't even begin to tell you how many hours I have spent working a Bridgeport, I even managed to turn one over once trying to move it, but thats another story. Best machine in the toolroom by far.... I can also see by your narration you know your stuff, thats a compliment from one engineer to another.Keep up the great work and long live those engineering skills. Thumbs up from England :-)

[@freighternutnz]

Many thanks for meeting my request for a video on boring in the mill. Very useful and it has given me the confidence to give it a go. Regards, Roger...

[@cdbflynow]

An excellent introduction to the boring process on a milling machine. Good practice throughout. Thanks, Paul

[@theseldomseenkid6251]

A very nice three part series. Thanks Mr. Pete.

[@mrpete222]

Thanks--That's a better rating than any I got from my supervisors when I was still teaching.

[@etg1951]

Wow! I'm a beginner on the milling machine and this video was very interesting to me. Thanks!

[@psient]

Great series. I am new to machining and am very confident in following your instructions. I must say your style of teaching is incredible. I am a college professor and envy your practitionership and technique. Kudos to your sir! My pleasure\

[@mrpete222]

@gbowne1 Thanks for watching. It's a brown & Sharpe v block.

[@jetjock07]

Thanks again Tubalcain, I'm ready to give boring a try on my bridgeport!

[@mrpete222]

@riten2 Yes, its an indexable carbide boring bar. It uses inserts.

[@danermer2955]

Neat to see how you've improved the Bridgeport since then.

[@c6e9]

I used my bridgeport brand boring head (just like criterion) last night for the first time. Questions: The carbide tipped boring bar can be at any position when you install it. I just eyeballed the angle that looked like it would give good relief. Also I quickly realized that when adjusting the cut, I needed to take up the slack in the adjuster before counting how many thousands I was moving the head. Thanks for your videos on the non-cnc way of machining.

[@bearsrodshop7067]

My first time will be Sept 24th 2021,,Wish me good results (@@)!

[@gohuskies583]

Another nice video. Thanks for your efforts! Dan

[@Rustaholic777]

Where is the next video about drilling the holes around this part? I really wanted to see that one. You are a very good teacher.

[@Delta9D9]

Many years ago, I did not buy a knee mill because I did not know what a draw bar was and how the shanks of the tool holders were held in. I knew of the MT style and knew they were just press fit. Passed up some good deals, instead I used a small drill press as a milling machine.

[@NIGHTWATCHERUK01]

who is the supplier of the quick-stop-clamp in the USA ...love you video's working my way through them---london --uk

[@harleyghost]

You are a wonderful teacher , thank you.

[@russtuff]

What a fantastic process! Is this the way you would center a hole in a piece of stock where the hole was maybe drilled off of center?

[@mrpete222]

@hoarp001 Does it, or did have a 2 speed motor?

[@mrpete222]

@1897bluesky My criterion screws in CW. Its design incorporates a LH screw & nut. The chinese are still undergoing their industrial revolution. They can't even copy things properly.

[@SlowEarl1]

great videos ! After yor first cut how much would you recomend taking off per pass? Thanks for sharing your knowledge.

[@daveknowshow]

Mr Pete, hope you are doing well. when using a boring bar in the horizonal hole is that a special boring bar? seems like the boring bar that comes with these would not work in the side hole. or am I missing something? do you have a video you can point me to? thanks for all your help.

[@gwheyduke]

Good information, thanks for posting this.

[@exilfromsanity]

Pete, In your video on drilling a through hole you said to put the V block next to the movable jaw of the vice, I see here you have it on the fixed jaw. Am I mistaken? Is there a difference in the two operations? Love your vids. Keith

[@step4560]

For a precisely sized bore, the power-feed is helpful, since varying the speed of feed will remove either more or less material. The power feed removes that variable and will ensure the same size bore from top to bottom.

[@kenibnanak5554]

What is missing here is the feed rate used, i.e., how many inches per minute.. Yes, it makes a difference in finish if nothing else.

[@crookedriver2079]

I think on a Bridgeport the quill power downfeed is _inches/revolution_ , not inches/min. I think it's selectable at .0015 ipr, .003 ipr and .006 ipr, If I recall correctly.

[@turbinedoctor]

Can you do a video on how to bore in the lathe?

[@jimliechty2983]

Do you set the boring bar for a positive ,negative, or neutral rake?

[@futten3230]

BOORIIING! noh just kiddin watchin this kinda videos is real cool i just love machining sadly dont get to do that anymore well havent really done it in 10 years

[@jeeprenegade1985]

I missing doing this for a living. I'll get back into it one day.

[@MrSteamdog]

Thank you,sir...Very good lessons,

[@Clunk49]

Again, thanks Mr.Pete.

[@riten2]

Thanks for the tutorial on boring and no I didn't find it Boring. I actually found it quite informative. I noticed on one of your boring bars that you said also can be used in a lathe that it had three points. I'm assuming that means as one point/cutter gets dull you can rotate to a new cutter/point. Is that true, does that type of bar have a specific name? Thanks.

[@hoarp001]

@mrpete222 We wondered this, the motor that's on there has got a damaged barrel switch, so I can't tell. Dosnt look like it's two speed...

[@mrpete222]

@NIGHTWATCHERUK01 Don't remember---had it for years.

[@gbowne1]

What type of V Block are you using? I made one some years ago when I first started working at a machine shop to replace the one I made in school. I like to use both methods, just to be sure I'm still accurate with the tele gage, calipers and the mic. I also like to use pin or plug gages, some indicators and other things depending on access to the part on the machine.

[@hoarp001]

Hi Pete, you show the speed table on your head. I have a series 1 J head and the speed table has twice the number of speeds, two high and two low gear speeds for each belt position. I have not been able to run the mill yet, so can't tell what's different. Any ideas? It's the 1hp motor, not variable.

[@michaelhallas6450]

I have a clausing 8520 vertical mill without a powerfeed,can i still get a nice finish with just a fine feed

[@drrjim]

Is that a rotary convertor I hear for 3 phase?

[@slucas601]

Thanks for sharing the video, I enjoyed it very much. One question: How do you set the orientation of the bar in the boring head?

[@kenibnanak5554]

I set mine to a right angle from the shaft axis. Works for my machine. Biggest problem with the cheap boring bars from China is they have round shafts and the lock screw lets them spin (and mar the shaft eventually) while the better American made bars have a flat on them the screw can grab to prevent the shaft rotating.

[@hoarp001]

@mrpete222 Just had a look at my speed table, It goes from 67RPM all the way up to 4600RPM!!!

[@happymark1805]

thats a nice v-block you are using

[@ReprisalSarge]

just for my understanding, you could have done the same work in a lathe ?

[@kenibnanak5554]

Yes, using the tool post.

[@baconsoda]

Super. Thank you. Best Wishes, Brendan

[@beecharmer01]

A great help. Thank you.

[@DeanSegovis]

Big help! Thank you!

[@drott150]

Question: Why don't you discuss the Bridgeport's auto-downfeed feature? The whole point of it is to provide a steady, consistent downfeed during boring ops isn't it? You appear to be only manually cranking the wheel to achieve the penetration.

[@kenibnanak5554]

LoL, my machine doesn't even have a power quill feed. Crank only.

[@Condor1970]

Can someone point me into the direction of a video showing how one mills a hole through a piece of stock, then machines in a male alignment key for auto alignment when installed over a shaft that has an axial female key slot milled?

[@theartman410]

Thank You. It help a lot

[@bryoncovell6325]

Question: Our Bridgeport is filthy, and the metal - metal slide surfaces are disgusting. What do you advise for lubricant / cleaner and frequency of lubrication? Thanks in advance.

[@mrpete222]

Try mineral spirits. Or lacquer thinner in a test spot--may take paint off. I use way oil for the vedovetails. --20 wt non detergent other places.

[@bryoncovell6325]

Thank you.

[@chaswood1234]

Your Awesome!

[@mrpete222]

Yes--you could move a hole--within limits.

[@petsatcom]

Great tutorial

[@Robonthemoor]

Can I ask” is that a Bridgeport boring head, I’ve have one 3/8 shank it screams when cutting. See my video Robonthemoor

[@mrpete222]

No, it is a criterion head. With a three-quarter inch shank

[@Robonthemoor]

Ridgidity with that size will be far greater. Thanks

[@elsdp-4560]

THANK YOU

[@johnlemon2987]

that is wonderful

[@freekforge1]

shars sells them for $4.50

[@Fixinthatupvideos]

T=up

[@hagefamilyfarms5083]

So many boring videos.

[@SuperTf2rocks]

So boring!