Hey Tom, I like all the clever goodies you have for your lathe to make life easier. I will borrow those ideas when I get my lathe. Thanks for sharing. I still say that the wabble drive was invented by Elmer Fudd! Have a good one! Oxen Dave
Nice work Tom. That backing plate really does the trick, and takes a lot of indicating out of the job. Nice use of the trepanning tool bit as well. Thanks for sharing. Adam
Hey Tom, Now that's working close to the jaws and fixture, my pucker factor was a little evevated during this operation! Well done and looking forward to part two! Ray
Hi Tom. Another great video! Thanks for sharing. I love the thrust plate. Used something similar but of various pre determined thickness on my 4 jaw. Never really thought about the adjustment screws. Genius! Thanks again.
Hey Rich, If you have a lot of flange type work the backing plate is a real time saver. Its cheap and easy to make. My two second favorite things, Cheers, Tom
thank you :) im glad you showed that, all this time i thought i was abusing a bit and now i see what it was made for. "trepanning" cool name lol... now i can look at my tool and know ive been using it like its supposed to be used :)
Hi Tom, you are braver than me with that double sided tape, all of my attempts have lead to some spectacular failures. Personally I would have drilled the ID undersized, bolted it to an arbor, put it in the chuck, cut the OD, take it off the arbor, chuck on the now good OD, bore the ID, face, flip, face and call it a day.
Hey James, As the disc gets thinner the OD clamping force bows the part. You would have made a conical washer. I can cut a washer down to a mm thick with this method. Get some of that Permacel tape. It holds like a Mississippi snapping turtle. All the best, Tom
Thought you were trying to create some friction there for a bit. Turns out yer gettin all sticky with it. ;-) "Glued" to the 'Tube for the next installment.... Colin ;-)
Talk about leave-in a guy hangin!! COM-ON TOM!! Just when I expected you to mount the plate..... I got a "Thats all folks" da da da da, da da da da, Looney tunes people looney tunes! Razor!
Gee Mr Wizard... First. Thanks for sharing your time and many talents. Second thoughts on material selection for the thrust bearing... Did you consider nylon of better yet Teflon? Makes really good thrust bearings, it does. Dry thrust bearings too. Ok just say'en. All the best. Have a great week end. Chuck.
Hey Chuck, I did think about a delrin thrust bearing. Its not in the spirit of the machine. This washer is more of a spacer than a real thrust bearing. There are two adjacent steel parts that have a differential rotation so I don't want them to rub on one another. No real thrust load other than assembly stackup. All the best, Tom
Hi David, It depends on the tool. Most of the time I face toward the center. No particular rule. Sometimes facing from inside out the chips can be a problem as they collect between the part and tool shank. Cheers, Tom
Hi Tom, as you set the DRO on the facing cut, how much are you allowing for tape thickness? As for tape, I favour super glue over tape, much easier to break the bond, a little heat works well, and no gooey tape residue to remove. Unless of course you have a special Ox brand Patent self removing double sided, if so, can I have some? ATB chris
Hey Chris, I actually show measuring the tape in the second video. Its .009 thick so I just offset that amount. I have used the black max superglue for a few things. I'll have to try it on something like this sometime. How hot do you need to get it to break the bond? The tape residue comes right off with denatured alcohol. This particular flavor of tape doesn't stand up to it at all. Cheers, Tom
I have never measured the temp but probably not much more than boiling water temp. The advantage (?) over tape is that it is brittle so will "snap" away unlike tape which you have to peel, which can bend a thin workpiece and completely ruin a lovely flat job.:>( Experiment before use as not all techniques work for everybody or for all occasions. I have found that tapes vary greatly in the ease of removeability, some peel cleanly while others are like the proverbial to a blanket. Have you watched watchmakers use Shellac to stick parts to special "chucks" they use an Alcohol flame as heat source. Steffen Pahlow shows it many times in his videos, now there by the way is a true craftsman not like we crude metal munchers.
Chris Stephens Hey Chris, I have used Dop wax to secure parts. One of our customers years ago was a gem cutter. He gave me some of the wax which I did some experiments with. Very secure holding for intricate parts. I had to make a special fixture so the bottom of the part would have a good reference position. I would just heat it on a small hot plate then let the part cool and lock in position. That is actually shown in my book somewhere. Cheers, Tom
Thanks for that, now that I know what's in it I don't have to buy it. I thought about writing a book once but there are enough books in the remainder bins already.
What tape are you using? James Kilroy had the same comment, basically I'd leave OD oversize, use my big round pallet (8" diameter, 2.5"). Slow speed with that 35# pallet on the lathe. Once done, install clamp on ID.... trim OD edge for I can flip and repeat. I haven't much luck with tape, other than the $$$$ wood working double sided stuff.
Hey Tom, The tape name is in the credits at the end. Permacel P02. When you grip thin things on the OD they bow and are not flat and parallel anymore. All the best, Tom
Is Voila with the french accent the correct thing to say after a successful trepanning operation? LOL I haven't had a chance to say it as the only two attempts at this type of operation have resulted in a snapped off tool resulting in some different french words... Great video, one on how to grind the tool right would be cool. Thanks!
Great work as always i have a quick question i don't know if it has been asked before how would some one work out the maximum spindle loaded with a chuck..Hum doesn't sound right..If i had a thread of 1" x 12 tpi and placed a 6 inch chuck onto them spindle threads would it snap the spindle off lol..Sounds crazy right..I have a lathe with 1" x 12 tpi threads and was supplied with a 5 inch lathe chuck and a small 4" 3 jaw scroll chuck..But i have a brand new 4 jaw and backing plate ready to machine I'm just wondering how i would calculate the weight and size chuck a spindle thread and spindle can hold i know the lathe can be fitted with a 9" faceplate but these are light...I hope this makes at least some sense,There is very little explained for the myford M type series lathe and i cannot find a manual but i have got some details from lathe.co.uk web site its a myford M series 3.5 flat bed lathe 1940 + lathe..Any help would be appreciated.I know people say some thing about the swing on the inside of the lathe for the room but that doesn't necessarily mean i can fit a 6" chuck.Or a 9" chuck hummm im puzzled.
Hi Bear, Not an easy question to answer. The lathe horspower and general construction come into play. I would research it from the backing plate side. For example look at the size range of chuck backing plates with a 1-12 thread. If they peter out around five or six inches then you sort of have your answer. I'm pretty sure you won't find one to mount a twelve inch diameter chuck but you could probably find one commonly available for a six inch diameter. Bottom line is it has a range of chuck diameters that are probably fine. You should be looking at chucks in the four to six inch diameter range if you pressed me for an answer. A six inch chuck will do a lot of work. Hope this helps. Cheers, Tom
I just got done making about 100 1-1/2 dia. holes in steel with a carbide annulus cutter. same principle only really easy and quick. reasonably cheap at 60$ championcuttingtool.com/champion-products/annular-cutters.html
Always nice to see a new tool and setup, Parting that large diameter is going to be interesting to see, can't wait.
Thank You
Matt C.
Thanks Tom for showing a neat work holding option, for me this has always proved to be a challenging thing to do.
Thanks for the ride, Tom. I've made many lens boards for my cameras just as you showed. Excellent work as usual.
Interesting stuff. Always a pleasure watching your techniques. Thanks for sharing Tom
Wow Tom, that was an awesome and enjoyable video showing trepanning.
Looking forward to see the next workholding procedure.
Thanks....13
Hey Tom,
I like all the clever goodies you have for your lathe to make life easier. I will borrow those ideas when I get my lathe. Thanks for sharing. I still say that the wabble drive was invented by Elmer Fudd!
Have a good one!
Oxen Dave
Glad to see work progressing on the press!
Clear, precise, lots of tricks... waiting for P2 !
thank you !
I learn every time I watch your videos. Nice.
Hi Tom,
Going good, thanks for the cool tricks, going to part 2 soon. (Have to take the backlog from the vacation time)
Cheers,
Pierre
Hey Tom: Great video!! Lots of very clever stuff!!!!
Glad to see you back on the Wabble Gears. You have been torturing me with them setting on your table in all your videos. Just setting there! lol
Hey Steve,
I might need to clean the rust off pretty soon. Thanks for stopping by.
Cheers,
Tom
Nice work Tom. That backing plate really does the trick, and takes a lot of indicating out of the job. Nice use of the trepanning tool bit as well. Thanks for sharing.
Adam
Hey Adam,
Always nice to hear comments from a pro like yourself.
Talk to you soon.
Tom
oxtoolco
Hey Tom,
Now that's working close to the jaws and fixture, my pucker factor was a little evevated during this operation!
Well done and looking forward to part two!
Ray
Hey Ray,
I thought I heard a little squeak from down south. Thanks for the comment. It just looked close.
Cheers,
Tom
Hi Tom. Another great video! Thanks for sharing. I love the thrust plate. Used something similar but of various pre determined thickness on my 4 jaw. Never really thought about the adjustment screws. Genius!
Thanks again.
Hey Rich,
If you have a lot of flange type work the backing plate is a real time saver. Its cheap and easy to make. My two second favorite things,
Cheers,
Tom
thank you :) im glad you showed that, all this time i thought i was abusing a bit and now i see what it was made for.
"trepanning" cool name lol... now i can look at my tool and know ive been using it like its supposed to be used :)
Hey Doug,
Use your tool wisely. Thanks for the comment.
Cheers,
Tom
Chicken Bolt -- Gotta love it, right up there with Weasel Snot.
Hi Tom, you are braver than me with that double sided tape, all of my attempts have lead to some spectacular failures. Personally I would have drilled the ID undersized, bolted it to an arbor, put it in the chuck, cut the OD, take it off the arbor, chuck on the now good OD, bore the ID, face, flip, face and call it a day.
Hey James,
As the disc gets thinner the OD clamping force bows the part. You would have made a conical washer. I can cut a washer down to a mm thick with this method. Get some of that Permacel tape. It holds like a Mississippi snapping turtle.
All the best,
Tom
I can see that, well maybe I will have to give it a shot again. Looking forward to number 2
Thought you were trying to create some friction there for a bit. Turns out yer gettin all sticky with it. ;-)
"Glued" to the 'Tube for the next installment....
Colin ;-)
Hey Colin,
You wont have long to wait. Thanks for stopping by.
Cheers,
Tom
Tom, Excellent video? Sure wish you can show us a "chicken sketch" of the trepanning tool.
Hey Herb,
The second video is not fully produced yet. I'll see if I can squeeze a bit more on the tool in it.
Cheers,
Tom
Talk about leave-in a guy hangin!!
COM-ON TOM!!
Just when I expected you to mount the plate..... I got a
"Thats all folks" da da da da, da da da da,
Looney tunes people looney tunes!
Razor!
Hey Ray,
Machinis interruptus. Otherwise known as the pullout method.
Cheers,
Tom
oxtoolco I always knew you had a sense of humor!!
Thanks for the laugh....
Still laughing......
Gee Mr Wizard...
First. Thanks for sharing your time and many talents.
Second thoughts on material selection for the thrust bearing... Did you consider nylon of better yet Teflon? Makes really good thrust bearings, it does. Dry thrust bearings too. Ok just say'en.
All the best. Have a great week end. Chuck.
Hey Chuck,
I did think about a delrin thrust bearing. Its not in the spirit of the machine. This washer is more of a spacer than a real thrust bearing. There are two adjacent steel parts that have a differential rotation so I don't want them to rub on one another. No real thrust load other than assembly stackup.
All the best,
Tom
I've tried trepanning (sp?) before. 3" circle in 1/8" steel plate. Sounded awful, but in retrospect, it wasn't all that slow. Only ever tried it once.
Good lessons!! Thanks
Hey Eight ball,
Thanks for stopping by.
Cheers,
Tom
Hey Tom when you are facing that is it best to cut going in to center or from center out? Or is it dependent on the tool.
Thanks Dave
Hi David,
It depends on the tool. Most of the time I face toward the center. No particular rule. Sometimes facing from inside out the chips can be a problem as they collect between the part and tool shank.
Cheers,
Tom
Hi Tom, as you set the DRO on the facing cut, how much are you allowing for tape thickness?
As for tape, I favour super glue over tape, much easier to break the bond, a little heat works well, and no gooey tape residue to remove. Unless of course you have a special Ox brand Patent self removing double sided, if so, can I have some?
ATB
chris
Hey Chris,
I actually show measuring the tape in the second video. Its .009 thick so I just offset that amount. I have used the black max superglue for a few things. I'll have to try it on something like this sometime. How hot do you need to get it to break the bond? The tape residue comes right off with denatured alcohol. This particular flavor of tape doesn't stand up to it at all.
Cheers,
Tom
I have never measured the temp but probably not much more than boiling water temp. The advantage (?) over tape is that it is brittle so will "snap" away unlike tape which you have to peel, which can bend a thin workpiece and completely ruin a lovely flat job.:>( Experiment before use as not all techniques work for everybody or for all occasions.
I have found that tapes vary greatly in the ease of removeability, some peel cleanly while others are like the proverbial to a blanket.
Have you watched watchmakers use Shellac to stick parts to special "chucks" they use an Alcohol flame as heat source. Steffen Pahlow shows it many times in his videos, now there by the way is a true craftsman not like we crude metal munchers.
Chris Stephens Hey Chris,
I have used Dop wax to secure parts. One of our customers years ago was a gem cutter. He gave me some of the wax which I did some experiments with. Very secure holding for intricate parts. I had to make a special fixture so the bottom of the part would have a good reference position. I would just heat it on a small hot plate then let the part cool and lock in position. That is actually shown in my book somewhere.
Cheers,
Tom
Thanks for that, now that I know what's in it I don't have to buy it.
I thought about writing a book once but there are enough books in the remainder bins already.
What tape are you using? James Kilroy had the same comment, basically I'd leave OD oversize, use my big round pallet (8" diameter, 2.5"). Slow speed with that 35# pallet on the lathe. Once done, install clamp on ID.... trim OD edge for I can flip and repeat. I haven't much luck with tape, other than the $$$$ wood working double sided stuff.
Hey Tom,
The tape name is in the credits at the end. Permacel P02. When you grip thin things on the OD they bow and are not flat and parallel anymore.
All the best,
Tom
Is Voila with the french accent the correct thing to say after a successful trepanning operation? LOL I haven't had a chance to say it as the only two attempts at this type of operation have resulted in a snapped off tool resulting in some different french words...
Great video, one on how to grind the tool right would be cool.
Thanks!
Hey Ben,
The deeper you go the more difficult it is. The tool has to be perfect for really deep trepanning.
Cheers,
Tom
that's a cool holding fixture
HOY! I woz watching that! Turn it back on soon. :¬)
Great work as always i have a quick question i don't know if it has been asked before how would some one work out the maximum spindle loaded with a chuck..Hum doesn't sound right..If i had a thread of 1" x 12 tpi and placed a 6 inch chuck onto them spindle threads would it snap the spindle off lol..Sounds crazy right..I have a lathe with 1" x 12 tpi threads and was supplied with a 5 inch lathe chuck and a small 4" 3 jaw scroll chuck..But i have a brand new 4 jaw and backing plate ready to machine I'm just wondering how i would calculate the weight and size chuck a spindle thread and spindle can hold i know the lathe can be fitted with a 9" faceplate but these are light...I hope this makes at least some sense,There is very little explained for the myford M type series lathe and i cannot find a manual but i have got some details from lathe.co.uk web site its a myford M series 3.5 flat bed lathe 1940 + lathe..Any help would be appreciated.I know people say some thing about the swing on the inside of the lathe for the room but that doesn't necessarily mean i can fit a 6" chuck.Or a 9" chuck hummm im puzzled.
Hi Bear,
Not an easy question to answer. The lathe horspower and general construction come into play. I would research it from the backing plate side. For example look at the size range of chuck backing plates with a 1-12 thread. If they peter out around five or six inches then you sort of have your answer. I'm pretty sure you won't find one to mount a twelve inch diameter chuck but you could probably find one commonly available for a six inch diameter. Bottom line is it has a range of chuck diameters that are probably fine. You should be looking at chucks in the four to six inch diameter range if you pressed me for an answer. A six inch chuck will do a lot of work. Hope this helps.
Cheers,
Tom
Thank you for that explanation Tom its much appreciated have a nice week :)It is a strange question though i have to admit that.
interesting holding video
Hello Tom,
You know the UA-cam chain?
" SV Seeker "
C'est fantastique.
Amicalement.
That looks like a 45 record. LOL But very nice too.
Hey Mack,
The song just went gold. Thanks for the comment.
Cheers,
Tom
Great video! I've been getting somewhat behind on watching,,, so my comment just makes the comment counter advance by one..... :o]
O,
I just got done making about 100 1-1/2 dia. holes in steel with a carbide annulus cutter. same principle only really easy and quick. reasonably cheap at 60$
championcuttingtool.com/champion-products/annular-cutters.html
Hi Creek,
Annular cutters are the bomb. Super efficient and accurate.
Cheers,
Tom