OccupantRJ
Well-known member
A link for basic training in the machine shop arena.
http://techtv.mit.edu:80/genres/24-how-to/videos/142-machine-shop-1
http://techtv.mit.edu:80/genres/24-how-to/videos/142-machine-shop-1
Machining training
- Thread starter OccupantRJ
- Start date
t. jones
Well-known member
Thanks for the link. Thanx Trevor
shadow images
Well-known member
That is awesome, thanks.
Nealcrenshaw
Well-known member
Good stuff!! thanks
tigmusky
Well-known member
cool thank you
daye
daye
Doug19
Well-known member
Great videos. Now I just have to find myself a mill and lathe.
Griff93
Well-known member
Thanks for posting that. I now have to add a center finder to my list of to buy tools. I'd like to have that drill press.
In the Rust Belt which Pittsburgh is a part of one doesn't "find" machines. They just kinda fall out of the sky, like rain. All you have to do is wait for a rainy day.
Doug19
Well-known member
In the Rust Belt which Pittsburgh is a part of one doesn't "find" machines. They just kinda fall out of the sky, like rain. All you have to do is wait for a rainy day.
Your not kidding. You'd be amazed at some of the stuff i've checked out on Craiglist, that people consider good condition. It's amazing how you can make a complete peice of junk look somewhat decent with a picture. I've been looking for a mill, lathe, and a 50's truck for a long time. Everytime something looks exactly like I want I go and check it out and it is always way beyond repair.
I know where you're coming from, Doug. Machine buying is hit-and-miss and there's a lot of junk out there!
Some days though, the rain is better than others.
94legaleagle
Well-known member
- Joined
- May 7, 2009
- Messages
- 294
bookmarking thread to watch later!
I watched the first video before Christmas and got a centre finder for Christmas. Not used it yet, but am hoping that along with the cheap XY vice I got will help me line up a lot better.
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Doug19
Well-known member
Can anyone give me an idea of what that exact Bridgeport in that kind of used shape with and without the DRo would be worth?
OP
OccupantRJ
Well-known member
How 'bout I give you this instead. I have bought from both these people and McKean in the past for my workplace. Just for reference, freight from Ohio to NC was around $600 on several types of machines I bought. Some weighed more than a Bridgeport. HGR puts out a newspaper-like catalog of listings with pictures that one can drool over. ALWAYS CHECK VOLTAGE AND PHASE REQUIREMENTS.
http://www.hgrindustrialsurplus.com...sion=&sortASC=&pageSize=&searchMethod=keyword
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OP
OccupantRJ
Well-known member
When I was in my twenties, I used a power downfeed drill press similar to that one to machine 1,024 holes 4 inches in diameter with a flycutter in a rectangular 1/4" aluminum plate. Looked like a 4 cylinder head gasket. Used a go/nogo plug gage to keep proper diameter. Learned to properly sharpen a tool bit on that job, I did. Earplugs and patience were a necessity. I can hear it even now. skrawwk, skrawwk, skrawwk,skrawwk.........
RJ
OP
OccupantRJ
Well-known member
Bumping this one for the new people on the board.
OP
OccupantRJ
Well-known member
Yearly bump for the new guys.
muibubbles
Well-known member
ive got linked to these a week or two back from another forum... watched about half so far. they are very informative and helpful.
cons, you WILL want more stuff.
my current list is a lathe
center finder
those things to scribe where the hole is (does anyone know the name of those an where to get them)
anddd that cam vice is saaaaaaaweeeeeeeet!!!
cons, you WILL want more stuff.
my current list is a lathe
center finder
those things to scribe where the hole is (does anyone know the name of those an where to get them)
anddd that cam vice is saaaaaaaweeeeeeeet!!!
stonewellmark
Well-known member
...muibubbles, I think your talking about a set of transfer punches, dont forget the magnetic base and dial indicator, and a digital caliper
Mark
Mark
Jim Johnstone
Well-known member
It's crazy addictive. I'm up to 3 digital calipers, 2 dial calipers, 2 mag bases, 14 micrometers, 1 depth micrometer, 8 or 9 dial indicators, parallels, 123 blocks....
OP
OccupantRJ
Well-known member
Take a breath, Jim. You're going into precision tool overload, and you will end up in the 12 step program!
Griff93
Well-known member
Yeah I think the machinist tool thing is just as addictive as the mechanics tool thing. Speaking of I need some more 1-2-3 blocks...
I really think the lay out stuff in the guys video was cool. I seem to use parallels for doing layout as much as I use them in the mill vise now. It's really helped with the fabrication side of things. Those videos made me buy a center finder, a couple of adjustable calipers, and a co axial indicator.
I really think the lay out stuff in the guys video was cool. I seem to use parallels for doing layout as much as I use them in the mill vise now. It's really helped with the fabrication side of things. Those videos made me buy a center finder, a couple of adjustable calipers, and a co axial indicator.
OP
OccupantRJ
Well-known member
I saw an ad on CL last year about this time for some machine shop items about an hour from me, so my son and I decided to check it out. The item I was really after was a Bridgeport brand boring head. When we got there, it turned out that the owner had sold all the larger equipment, but had held back all the smaller items until he had time for a good friend to come from afar to get what he wanted out of it. We were the first ones there after the friend, and had the opportunity of 2nd tier cherry picking of it all. I got the boring head, all his parallels, including angular and straight, metric and standard counterbores, tap extractors, 20 lbs of end mills and reamers, several sets of work holding clamps, boring bars, etc, on and on. The guy was ready to be done with it all and kept piling stuff up on the table. When I hesitated, he would just say "I'll do you right on it". He did. We left out with the bed of my truck covered with stuff for $200, grinning from ear to ear.
OP
OccupantRJ
Well-known member
One thing I have found to improve layout precision is to use an Exacto knife for a scribe. It will get closer to the blade of a square than anything else I have found. Black magic marker makes a good localized area "blueing", also. I often use magic marker to find the plane of a previously milled surface in the mill by creeping up on the marked surface with a spinning end mill, while cranking back and forth on the opposing axis. When you are cutting a partial amount of the color off, you are about as close as you will get to that surface. The dials or DRO can then be set for a starting point reference for further milling.
Worsedog
Well-known member
Thanks for the link. I just downloaded the whole series.
Now where to make room for more machines..........
Now where to make room for more machines..........
NASTYZEN
Well-known member
Keep in mind that every machine needs to be accessorized. I.E. collets,tooling and so on.Sometimes that cost exceeds the cost of the machine,not to mention all the layout and measuring equipment.
For sure buying used is the way to go!Lots of that around in these extreme economic times.
For sure buying used is the way to go!Lots of that around in these extreme economic times.
Cryptic1911
Well-known member
totally bookmarking this for later
OP
OccupantRJ
Well-known member
One thing I disagree with the guy in the video on is the use of the caliper as a scriber. The same effect can be achieved by setting the caliper to a dimension, using the step measuring function of the tool as a gauge, then scribing along the end of the caliper head. For the uninitiated, calipers usually have four functions of use for measuring. These are inside, outside, step, and depth.
See this.
http://littlemachineshop.com/Instructions/UsingCalipers.pdf
OP
OccupantRJ
Well-known member
Muibubbles, here's your cam lock vise. Note that it can be used on it's side, also.
www.heinrichco.com/gpvise.htm
muibubbles
Well-known member
youre probably right. i never seen some of those tools until this video. super cool. i have a digital caliper and just got my lathe!
ahh sweet! thanks! unfortunately ive been spoiled by estate sales and refuse to pay that much haha
-->
Well-known member
Cool. Thanks!
Bender78
Well-known member
Very informative for a wannabe machinist like me. I can't figure out how to download these videos - any tips for that?
rickairmedic
Well-known member
Bender I just added a link to the videos to the Machining folder in my favorites . I have had them for a while ( before they were posted here ) .
Rick
Rick
OP
OccupantRJ
Well-known member
A milling machine tutorial for you.
http://web.mit.edu/2.670/www/Tutorials/Machining/mill/Description.html#15
http://web.mit.edu/2.670/www/Tutorials/Machining/mill/Description.html#15
Nelson58
Well-known member
Buying machinist tools is VERY addictive. I am still at it myself, buying V blocks, 1-2-3 blocks, etc.
Another good source of learning videos is the series on YouTube from "Tubal Cain" a/k/a "MrPete222":
http://www.youtube.com/user/mrpete222
He is amazingly prolific, has videos on just about every subject. His videos are easy to watch. Seems like a great guy to do this all for free. I hear he is a retired shop teacher. Check him out.
Nelson
Another good source of learning videos is the series on YouTube from "Tubal Cain" a/k/a "MrPete222":
http://www.youtube.com/user/mrpete222
He is amazingly prolific, has videos on just about every subject. His videos are easy to watch. Seems like a great guy to do this all for free. I hear he is a retired shop teacher. Check him out.
Nelson
I know what you mean... I spent two years squaring up blocks as a tool and die-makers apprentice. 12 hours a day face-milling 420 and 440 stainless, piling blue-hot chips 18" deep around the shop, and wearing long sleeves and leather gloves on hot Texas summer days. It takes some dedication!
Outlander
Well-known member
You managed to transport me 20 years into the past within the first 30 seconds of that video. Only difference is that the shop at MIT has windows...the shop at my technical school was in the basement....nobody but us dared enter