Bridgeport Type Milling Machines- Demonstration of features
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- เผยแพร่เมื่อ 25 ส.ค. 2024
- What to look for in a used Bridgeport type milling machine, and demonstration and discussion of the features in a Bridgeport type milling machine by Dale Schafer, Machine/Tool Technology Instructor at the Washburn Institute of Technology. This was one of the demonstrations at the 3rd Heartland Hammer-In in Topeka, Kansas sponsored by the American Bladesmith Society and hosted by the Kansas Custom Knife Makers Association. For more information on bladesmithing techniques please visit the ABS Website or Forum at www.americanbladesmith.com
![Bridgebort Milling Machine [Rescue]](http://i.ytimg.com/vi/zGv7MkdIP_w/mqdefault.jpg)
The bridgeport milling machine is one of the best machines for manufacturing precision parts. I was working for many years when I was young with an equal and when I watch the video I remember those times. Greetings from Spain
Thanks for the upload. That Teacher seems like a cool Guy who takes time to educate instead of going thru a spheel and getting aggravated by questions.
*Excellent* video! I've been looking into buying a used milling machine, and this video condenses a lot of great information into seven minute.
love the integrity of the Bridgeport vert. mill.
Good demonstration. Probably should have watched it BEFORE I bought my mill, but I got lucky and it turned out okay. 1964 Bridgeport. Woot!
Something many guys overlook because they wanna run a cnc and think nothing of a bridgeport is that it can do it all. As a matter of fact it has a roll in everything man made. Plastics you say? Molds and machines are made with a mill. Candy you say? Again molds and machines, they all go back to this mill. My opinion is that everyone considering a career in machining should run this first. I love that proto trak makes a awesome cnc conversation for it and you can do any shape you want within a thousand. It's by far my favorite machine.
Does Dale Schafer have a Channel? Great video.Thanks for sharing. I think I've watch this several times.Can never get enough of it!
We just picked up a programmable Bridgeport, works great
need many many many of these guys on the schools !!!!!!!!!!!!!!
Outstanding video! Thanks for posting.
loved the way the instructor demonstrated & that he wants his students to do it themselves rather than the machine doing it for them.
Abhinav Gupta sir me Indo German me turning and milling course kar raha hu to, salary kya hogi
Durn good video. Much usable info in just minutes.
If I could offer a bit of advice-
Make your work ergonomic. When drilling, set your drilling height to where your arm is at the optimal level, and you are just using the grip of your four fingers for pressure on the quill handle. You will get a sense of the force you need to use. Often you start with light pressure, develop a bit of lead/chamfer, and then you can apply more pressure/feed.
It's amazing how material you had once thought hard to drill now becomes like a hot knife through butter once you get that touch.
Get your arm sitting straight as a flagpole and your hand as level to the quill handle as your eyesight. And then just "grip" the feed.
Best of luck
Todd
Great video... thanks for sharing this information.
my school has these they are very cool and reliable
I'm in Kirkland, WA State. I'm an HVAC Tech for the Lake WA School District. Schools are typically replaced on average, every 50 years. Recently, our district knocked down Juanita High School and built a new one. The old school had a wood shop, an automotive repair shop and a machine shop. These shops are gone now. Instead, they are turned into Computer Labs and such. Ok, it is a sign of the times, the world is changing. Still, I hate to see the old shops go the way of the Dinosaur. Just last week, I was going on a walk through of the new school, commonly done so the building contractor can show us the ins and outs of the new HVAC systems, Ground Source Heat Pump systems and Geo Thermal recovery and such. When I was brought into the "Tech Lab" my heart swelled with appreciation that someone, I have no idea who, saved a pin roller machine, a cutting foot brake, a circular band saw and....... one of these awesome Bridgeport Milling Lathes...from the old machine shop of the old school. That school stood from 1970 until 2020. A good run, I would say... I'm very pleased that this "Dinosaur" will still attract the attention of some gear headed kid that couldn't give two shits about Microsoft Windows!! Old school, gentlemen...they will NEVER replace a burned out A/C compressor with an "APP"... Some Plunker like me will have to actually get up off his ass and go do it...Ok, soap opera over... Thank you so much for posting this...Ol Sarge
Great info! Thanks for sharing.
I need a good milling machine!
I like how he said that he wants the student to do the thinking for themselves and not the machine doing the calculations for them. I would like to have learned my machining from this guy. I believe the figuring and calculating is a somewhat lost art with all the cnc machines and newer tooling that we have.
brandy sigmon I don't know what they mean? We HAD to do all the mathematical thinking & aspects, it was part of it all, or you didn't qualify. It was a major pain in the ar*e too. Surely they don't qualify toolmakers or machinists these days 'just' from programming computer numerical controlled devices ?
you'd be right
Thank-you.
@4:25... A drill has a sprung handle/wheel on the side on the side to lower the quill easily to drill holes. And it has thrust bearings. You don't want to put side forces on a drill. A mill has radial bearings to handle side loads. Mill/drill has both.
Mill drill does not have both...just smaller mill bearings. SMH
Thanks!
Ive got a issue with the knee I have new gears but it’s still real noisey and grouchy up and down
What is the likely issue the worm is worn and need replacing or possibiliy something else ? Kind regards
I am about to strip it down to take a look as it but need some idea on what I need to be looking at
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I have 1 of each. I prefer belt pulley it's more quiet.
oh so to tilt and move the turret you have to loosen up some bolts, no wonder I could not find the crank to do so after looking one we at the railroad historical society have one that is old airforce used, 1 hp motor bridgeport but it still winds pretty smooth with little play the thing is some handles need fixed on it and it needs plugged in but other then that I looks good for its age just that it has lube and dust all over it from being around a coal fired engine, but I certainly think they can move many ways and if you know what you are doing could do lots of metal working on it.
couple other things, a manual adjust belt head is much more reliable than variable speed head, the variable get worn out, also check how far the x and y lead screw moves without the table moving, that indicates how much wear
john hancock Agreed. Variable speed heads on ANY Bridgeport or it's clones are a PITA!
There's a split nut for both axis's that can adjust out the backlash.
@@HighGear7445 It's not so much as the backlash as it is that the tables tend to sag on each end leaving a hump in the middle. Agree that the vari speed machines are a bit of a headache and require a lot more maintenance.
That veridrive sure was clattering when he turned it on and cranked the speed up. Sounds like the keys are going south or the shive bushing is worn.
tq sir
good video i wish it was uncut though
nice
The Bridgeport is the only one that has angular contact bearings under preload. they cost about five hundred dollars to replace. All the other import copies have radial deep groove bearings with no preload like a drill press . They are more like fifty dollars to replace.
David. If you do the work yourself you won't pay $500.00 to replace Bridgeport quill bearings...more like $150.00
I had 2 yrs of schooling before starting this trade with 1/2 the time in the classroom .
Learning the formulas for speeds and feeds , trig ect had me at a dead run out of the gait.
Still years and years of learning , it never stops. Built parts for machinery used all over the world, aerospace military ect , it's been interesting. Unfortunately it's a thankless trade anymore with customers jobbing out to 3rd world countries. Doesn't pay as well as it should for what you have to know.
This milling machine price kya ha
Milling machine ke break Chang video show please sir
Thank you
who's going to true that head now. lol make a student do it.
А ПО РУССКИ
around for a lot of years is correct.these days Bridgeport mill company is living in there past.over priced---over the hill--there are lots better.get a mill that is DC volt-control the RPMS down to almost nothing with out a power loss.belts suck.OH---get a DRO.get a smile on your face thenmake your self happy.
Nothing wrong with a belt. In fact, with a belt you can do stuff that a DC colt-control motor can't mainly stuff that requires a shitload of torque. Bridgeports despite the design being well over 100 years old are still use throughout machine shops in the USA so that tells you something right there.
nice