Making a Face Grooving or Trepanning Tool for the Lathe - it failed!

Grind a face trepanning tool for the lathe

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QWIK CLIP - Custom Tailstock Trepanning Tool For The Lathe (.638 Diameter) - MSFN

Makin Sumthin From Nuthin

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Prototype Tailstock Trepan Cutter Tool I Made Using The Lathe and New Bench Top Grizzly Mill…..an Exercise in Thinking “Outside The Box!”
Just One Tool I Have To Make As Part Of A Larger New Customer Project Requiring Custom Tooling For A Potential Production Run Of Parts If I Can Make The First Two Parts Successfully. Please subscribe and click the notifications “bell” to get notified of newly released videos. A thumbs up and your comments are always appreciated! Thanks for Watching!
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Опубликовано:

9 сен 2024

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Комментарии : 99

@5tr41ghtGuy 6 лет назад

Nice job! You might get rid of some chatter by relieving the other two sides of the cutter by grinding or something. Also, keep the tailstock stickout to a minimum.

@MakinSumthinFromNuthin 6 лет назад

Had I been thinkin ahead I woulda made the shank 1/2" and held the prototype in a collet in the tailstock and bypassed the chuck altogether" And yes, relief shoulda been done....I kind of rushed thru it during this experiment

@armdaMan 6 лет назад

Ditto here....Brilliant !! Necessity is the Mother of ......... Well conceive and made. Lateral Thinking indeed. U now developing into a Toolmaker !!! Good show ATB aRM

@MakinSumthinFromNuthin 6 лет назад

Thanks aR M, I respect your opinion and input...thx for watchin. The machine work of making of the tool may have been of more interest than seeing the finished product....but I was pushed for time :(

@hamritbrahim5617 6 лет назад

جميل تسلم الايادي

@MakinSumthinFromNuthin 6 лет назад

Thanks Hamrit

@roleic7246 6 лет назад

the chip form produced tells us that the tool is more rubbing than cutting. You have made a relief angle on the top surface of your cutting edge. But your rake angle is 0 deg. For cutting steel you usually use a rake angle of 5-7 deg. I.e. the vertical surface at your cutting edge should be undercut by 5-7 deg. Then you should get a cleaner cut and curly chips.

@MakinSumthinFromNuthin 6 лет назад

I have only had the lathe about 2 years now....still learning :) Thanks for the tip!

@roleic7246 6 лет назад

No problem. We are all here to learn from each other. I have learned a lot from other youtubers.

@MakinSumthinFromNuthin 6 лет назад

Everying I learned was from youtube and experimentation, hadnt broken anything yet! LOL

@roleic7246 6 лет назад

here is a very good video (2 parts) about chip forms and what they tell you. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-szoSKHi5erQ.html You can get an overview of Marc's video courses in this website: www.thatlazymachinist.com/free-training.html

@MakinSumthinFromNuthin 6 лет назад

Thanks Rol, I have watched many of his videos. Thanks for the links!

@shawnmrfixitlee6478 6 лет назад

VERY COOL ! I like it man..

@MakinSumthinFromNuthin 6 лет назад

Thx, it was a total experiment to see it it was doable but ended up tackling the project the traditional way....cussing :)

@onepairofhands 6 лет назад

clever, like your work

@MakinSumthinFromNuthin 6 лет назад

It was a fun experiment...

@MyHeap 6 лет назад

Interesting tool. A circular cutoff tool for the tailstock? At least that is what it puts me in the mind of. Rather ingenious, I think. Great Job, thanks for sharing with the rest of us Richard.

@MakinSumthinFromNuthin 6 лет назад

This particular trepanning tool requires no relief angles because it is the exact profile of the groove to be cut...it needs refinement but looks promising

@SteveSummers 6 лет назад

Neat tool Richard, it would be real handy for production and should be very repeatable 👍

@MakinSumthinFromNuthin 6 лет назад

Time will tell...just experimenting with the idea. Thought I would post it and get the opinions of people that have more sense than me 😊

@RRINTHESHOP 6 лет назад

Nice idea, I like it.

@MakinSumthinFromNuthin 6 лет назад

Thanks Randy, needs some tweaking but appears promising for a trial run

@somebodyelse6673 6 лет назад

A guy could have several sizes of those in a tailstock turret, eh?

@flatblack39 6 лет назад

Brilliant! I love homemade tooling!

@MakinSumthinFromNuthin 6 лет назад

Try to make sumthin from nuthin that will fit the bill..Lol

@markcnc 6 лет назад

great idea, let's step it up a notch though ay .... make one that does the trepanning, cuts the chamfer on the o.d. and breaks both the inside edges all at the same time. Seems simple enough in concept? HA!

@MakinSumthinFromNuthin 6 лет назад

Ha!, I am on it. :)

@PappysCorner 6 лет назад

That worked good! Great channel. I was afraid the cutter might slip in the chuck. Very little tool pressure there so it worked great! Thanks for sharing this. Best of luck!! ... Pappy

@MakinSumthinFromNuthin 6 лет назад

It was an interesting idea....its what I get for thinkin too much! :)

@ianide2480 6 лет назад

I wonder how well a D shaped on a system "similar" to a boring head. Adjustable left and right for a range of sizes. You could also add in different sized D bits for diff grove widths.. hmmm

@MakinSumthinFromNuthin 6 лет назад

Yep, I have 8 million ideas on how to make this crazy idea work with modifications....but maybe it will spark some thought on ideas far better than what I chucked out for debate. Thx for watching and your input....much appreciated~ Richard

@oldSawyer 6 лет назад

I Like the Trepanning Tool, but Personally I would make it to fit into a boring bar holder instead of the tailstock. . . While You SAY it cuts to Exactly .638 diameter I'd wager your repeatability isn't that good. . . Ever see a Drill Bit walk off center ? Your Trepan Tool will want to do the same thing. . . May Be a couple .0001 or May Be a Few .001 depending on how snug your tailstock is. . . Where-as if mounted in a boring bar holder you can dial in the exact diameter and start knocking out part after part after part with excellent repeatability. . . Plus it lets you set the carriage stop as a depth gage.

@MakinSumthinFromNuthin 6 лет назад

Agree, since making this prototype I have changed directions on how to approach this profile. I got a lot of useful input from viewers....yourself included. Its why I posted the vid...to get feedback from folks much more knowledgeable than myself. Thanks for your comment ~ Richard

@BisonWorkshop 6 лет назад

nice job

@MakinSumthinFromNuthin 6 лет назад

Thanks Bob, experimenting

@userwl2850 6 лет назад

You made it from tool steel and hardened it? Maybe a piece of carbide brazed on the end to give it a longer life? Excellent job. 👏👍

@MakinSumthinFromNuthin 6 лет назад

This one is a protype made from a large Grade 8 bolt. I ordered some W1 tool steel to make the final version as this one seems to work ok. You inspired me with all the trepanning you do

@MakinSumthinFromNuthin 6 лет назад

Userwl, do you think putting another cutter 180 degrees out cutting upside down to avoid twist is a better way to approach this ?? I really trust your judgement and knowledge when it comes to trepanning and I am just a newbie machinist :) Richard

@userwl2850 6 лет назад

Makin Sumthin From Nuthin "if it ain't broke don't fix it" it did exactly what you wanted it to do. The only thing that could happen as you're using the centre to cut off centre it could bend your tailstock or Morse taper on such a small machine. A few pieces is ok but if it was a big quantity I'd think twice as it could cause damage. Certainly doing it with opposite cutting balances out the force. Thanks for your nice comments. David.

@MakinSumthinFromNuthin 6 лет назад

Thanks for your input David, I appreciate ya ~ Richard

@glennfelpel9785 6 лет назад

Richard that is impressive. Good thinking, How did you come up with this idea? That is one of those things where you say "Why didn't I think of that?" Hope things are well with you up there, did you get much storm damage?

@MakinSumthinFromNuthin 6 лет назад

I came up with the idea myself. It needs refinement with proper tool steel. I have lotsa crazy stuff I believe I can do now that I have a mill. It may have been done before but I have never seen a vid on this technique. I fared Irma ok but know you didnt...hope things are getting better there Glenn

@carneeki 6 лет назад

I'm going to save this idea into my bag of tricks, thanks! Will there be a video coming up for making the tool?

@MakinSumthinFromNuthin 6 лет назад

I didnt film making the tool cause it was just a prototype....If I make a new one from tool steel I will film it....but it will be modified slightly to not put undue offcenter stress on the tailstock

@johnstrange6799 6 лет назад

Awesome idea. I wonder if one could be made that is adjustable for a range of sizes?

@MakinSumthinFromNuthin 6 лет назад

Thanks!! Can be made to any size desired...its the beauty of it. "Adjustable" would take some thinking. Its just my prototype made from a grade 8 bolt for my specific job coming up. A new one needs to be made of tool steel....machined, hardened and tempered. I can do all that here ~ Richard

@johnstrange6799 6 лет назад

It's so cool to make your own tooling. Keep up the great work.

@MyHeap 6 лет назад

Adjustable means you make a smaller cutting end dispensing with the curve much like a regular trepanning tool. Grind some side clearance for varying size grooves and mount the tool in a MT2 boring head and put it in the tailstock and adjust the boring head to the correct diameter and off you go. Seems like that would work to me. :-)

@MakinSumthinFromNuthin 6 лет назад

I thought on your 1st comment a few minutes....a tailstock mounted boring head could accomplish that John....I dont have one tho. This was just made for a customer job coming up

@MyHeap 6 лет назад

I like that idea! :-)

@TomokosEnterprize 6 лет назад

Carry on bud. Don't ya just love working that close to the chuck, LOL. Take care eh.

@MakinSumthinFromNuthin 6 лет назад

Ha, yep....I used a magnifying glass off camera to avoid crashing anything

@TomokosEnterprize 6 лет назад

LOL. Ya do what ya need to do eh !

@danvandertorre9280 6 лет назад

hay I seen a video on youtube that tells you how to take one ten thousands of a part on the lathe if you already know how too do it good if not get back to me .and good work as always

@MakinSumthinFromNuthin 6 лет назад

Feel free to post a link Dan

@danvandertorre9280 6 лет назад

all you do is set the tool post on a 5.74 degree angel and so when you in feed 1000 thon the dial with the angel it ends up being 1 10.000th put a mag mount gage on the side until it reads the way you want it too so as you in feed it will read 1 10.000 so my guess is that doing this you would use a very sharp tipped point tool for this I can t remember the video its that thing under the tool post with the degrees on it so you may want too leve it lose so you can tap it into alignment so you get your 1 in 10.000 th at a time I know you like to do the best you can on any job you do so I now tell you have a good day buddy .

@MakinSumthinFromNuthin 6 лет назад

Yes, I have used that technique on a few jobs and even played with that yesterday as a matter of fact. its great for fine tuning an outside diameter but problematic when boring to a specific depth. I am glad you went thru the effort of trying to help me with this issue Dan....I appreciate ya! ~ Richard

@danvandertorre9280 6 лет назад

yes more tool deflrctshone that's the thing with boring bars they flex I bet higher speeds and a sharper tool may help out with that and take smaller cuts I have an idea for a direct indexing head that will index in degrees minits and seconds and even 10ths and I can sell them for under 200 bucks and all you need to operate it is a calculator so no need for plates and all that stuff and no back lash .not bad for a guy with grade 2 hay lol .

@MakinSumthinFromNuthin 6 лет назад

Would love to see one in operation, I wish you all the success in marketing them ~ Richard

@minicrop 6 лет назад

It's a good idea, especially if you only need that size. How much did the slot width vary in your tests?

@MakinSumthinFromNuthin 6 лет назад

Thanks Dave....At slow lathe speeds negligible, at high speeds I was getting chatter and was causing issues. This protype was just a grade 8 bolt....waiting on the W1 I ordered for further refinement

@minicrop 6 лет назад

Makin Sumthin From Nuthin Do you think the rigidity of the tailstock may be a factor with the chatter?

@MakinSumthinFromNuthin 6 лет назад

Yes,I believe so.... its not made for the forces exerted like this, its just an experiment....it may be a terrible idea

@minicrop 6 лет назад

Makin Sumthin From Nuthin It probably is a terrible idea but if it works, it works.

@MakinSumthinFromNuthin 6 лет назад

Had I thought it thru I woulda made the shank .500 and just held it in a collet reducing the stickout of using a chuck. I guess this is what prototypes are for....and why I posted the vid....to get feedback on the idea

@67cudaksa34 6 лет назад

quick question, what lathe do you use?

@MakinSumthinFromNuthin 6 лет назад

Atlas 12 x 36 Commercial

@dimitar4y 6 лет назад

soooo you made a literal cutter... for the tailstock of a lathe. Careful before you bend the tailstock out of allignment, it's not meant to see that much pressure. Don't see the advantage of this compared to the normal operation; all lathes's turret can be set to do this, as if it were a boring operation. Otherwise neat execution. I'll think about it, maybe there's some neat uses for this. Coulda added the chamfer to the trepanning tool :P

@MakinSumthinFromNuthin 6 лет назад

Yep, leave it to me to do weird stuff. Trying figure a way to do the profile quickly and be repeatable without much trouble

@MakinSumthinFromNuthin 6 лет назад

So do you think if I had left another cutter 180 degrees out that was cutting upside down to offset the force of a cutter on just the one side is a good idea? (a cutter at 9 & 3 O'clock) With a radius of just .319 I cant see where much bending would be taking place in cutting soft aluminum with a properly sharpened cutter. Its all experimental at this juncture but you have raised a good point

@dimitar4y 6 лет назад

Results of making that tool "two-flute": a) that'd reduce the accuracy and make the manufacturing of the tool more complicated. b) it'd reduce 'one side' wear, and would prevent the tool tilting and biting into the material, crashing the lathe Two flute would be an absolute must for deeper ones or for larger diameter ones. The main problem with this tool isn't so much the momentary load, but the chance of the tool "biting" and seizing into slightly deeper recesses. Right now this tool is like a trinket, and although an oddball, is perfectly okay. I was just thinking of 'advancing' it somehow.

@MakinSumthinFromNuthin 6 лет назад

I was kinda "thinkin" of one cutter being 3-5 thou thinner in finished width than the final cut...the second cutter being the finished size width-wise for the finish cut but both engaging the face simultaneously to offset twist that you referred to which is a concern and thx for pointing that out. Maybe its just a crazy concept altogether....and worthy of the waste basket...but with a bore depth of just .100 I have no way to accurately measure the bore since the telescoping gauges have a .250 width and can not be inserted fully to take the measurement. I cant use calipers and scratch the inner bore. (Optical Device) Reamers have beveled ends and I need a flat shoulder...maybe its beyond what I can do with what equipment I got but trying to make it work cause I never sent a customer away saying...NO, I cant machine it ~ Rich

@MakinSumthinFromNuthin 6 лет назад

PS: I told my brothers my birthday is coming up and I need a CNC mill....but they weren't taking the bait ☹️

@StephenMortimer 6 лет назад

Sooo many "I's" and "me's" in this video . (psssst... next time add music with SUSPENSE)

@MakinSumthinFromNuthin 6 лет назад

Yep, too much yakking ☹️

@MyHeap 6 лет назад

I just turned up the music in the video to drown him out. ;-)

@StephenMortimer 6 лет назад

Try substituting a bit of Wagner.. The Ride of the Valkyries !!

@MyHeap 6 лет назад

That would be different than Hershel riding a fat girl on a Vespa, right?

@StephenMortimer 6 лет назад

Same SUSPENSE !!

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