Edgefinding techniques

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#practitioner_of_the_mechanical_arts

[@andyZ3500s]

35 minutes of edge finding and I was glued to the screen the whole time. You are a very talented teacher Mr.Gotteswinter.

[@tonywilson4713]

Yeah and is that an indication of our collective sickness or something else we suffer from?

[@andyZ3500s]

@@tonywilson4713 The only thing that I know is there is no cure.

[@tonywilson4713]

@@andyZ3500s But there are ways to deal with the addiction. I only go to tool shops late in the day so they kick me out before I spend too much. I once herd a woman describe what she called "therapeutic shopping." To my brain buy tools is a mans way of "therapeutic shopping." *In my book a man is allowed to own as many tools as she owns pairs of shoes, handbags and accessories.*

[@gregfeneis609]

Agreed. I was on the edge of my seat

[@Chris-pb3se]

I know, I wanna give myself a wedgie

[@seamusbolton215]

HI Stefan, you have been missed, thanks for posting

[@user-de8bu5es6f]

This is a Great video. How to convert the blatently ovbious to an entertaining, useful, educational video. I heard "mount your dial test indicator in a boring head" and I thought - thats Stefan still delivering better English humour than any modern-day brit will ever understand. Fabulas, I had to watch to the end. I was really exited for the boring head option. Please make a pt 2.

[@ROBRENZ]

Very well done Stefan! ATB, Robin

[@RRINTHESHOP]

Great demo Stefan. Everyone should learn this. Thanks.

[@imagineaworld]

I will probably never be able to afford any equipment to use these techniques, never ran a lathe or mill in my life, but damn if it isnt interesting and entertaining.

[@mike-carrigan]

Great video. Our 76 year young toolmaker that just retired used a .250 gauge pin and put black sharpie on it, spun it around a 1000-rpm and when he saw the black mark rub off he was good. he swore by that way, said it was way more accurate for him than an edge finder. If he is finding center of a part (no matter the shape of the part) it will always be a dial test indicator

[@somebodyelse6673]

sharpie on a gage pin... Huh, that one goes in the toolbox.

[@Sketch1994]

I've set tiny drills this way and if you measure the runout beforehand you can really get within less than 5 microns (make sure there is no blob or wave of ink... It can through you off)

[@DB-thats-me]

I FINALLY understand what people are looking for in an edge finder! As a member of the general nosey public, I couldn’t find an explanation of what/how the edge finder was doing. Many thanks.

[@howardosborne8647]

A nice smooth sliding action between the stationary and eccentric are what its all about. Decent quality edge finders don't cost the earth.

[@bawtreerd]

I have been a machinist since an apprentice The biggest game changer for manual machinists was the Digital Readout Scales Before that it was revoultions of the handle and then fractions of those revolutions plus or minus wobble bar , cutter erc Also for PCD calcukations oh my dont get me started Great video and well explained

[@UncleKennysPlace]

I've been using the "crash and then back up" method.

[@sibalogh]

I can always relate to that one for sure.

[@ianpendlebury3704]

Top quality clear instruction. Thanks for making this video.

[@billsmith5166]

It was so nice to go back to basics (and a good deal more), especially when it's so well taught. If you're ever running short on ideas I'd love to see a series of these, not only because I'm a huge fan, but because sometimes techniques can be hidden in other videos and lost to people that can't quite remember the video context. As usual, thanks for the videos and stay healthy!

[@tmurray1972]

The setting to a known diameter for measuring a radius was really interesting. I learned something today, thanks and great to see you again.😽🇺🇸👊🏻

[@mhc6777]

Good to see you're continuing to share your experience and knowledge Stefan, thanks a million.

[@markstanford2300]

Hi Stefan, great to see you back, once again clear and I'm formative. Take care. 😉

[@brucewilliams6292]

We really appreciate your contributions to the machining community! :)

[@JBFromOZ]

Yet again exceptional clarity and accuracy thanks mate!

[@corypride5096]

Great to have you back on KZbin, Stephan! I am not a machinist but I do enjoy learning about mechanical things. Also, I enjoy your wry humour...

[@sevenninthsfabmachine]

I’ve seen much of these techniques on-the-fly in other videos, but never all together in one place like this. Very useful. Thanks!

[@burnieoak8105]

Good to see ya back!

[@markdavies8037]

Brilliant again stefan. I was suprised at how close the different techniques were in the end.

[@624Dudley]

Thank you Stefan. As always, I enjoy your style of demonstration - the pace is just right, and the explanation is clear. I’m grateful that you do this in English!

[@donmittlestaedt1117]

Thank you. It is always a pleasure with you.

[@2lefThumbs]

Excellent run-through Stefan, thanks for going into detail on the dti methods1👍👍

[@michaellitzkow8123]

Wonderful video! Very clean explanations. Thank you for taking the time to share this information.

[@soundlimit300]

Excellent video Stefan.

[@neilh2150]

Another excellent video, thankyou for sharing your knowledge in a way that is easy to understand! You are a talented teacher indeed.

[@stumccabe]

This was very helpful and interesting. Thank you Stefan.

[@new2diving]

The indicator method is new to me. Thanks a lot for the demo !

[@rok1475]

The newer DRO with LCD screens allow users to enter any arbitrary number into X, Y or Z counters. You only need to touch the edge, enter the diameter of the edge finder or thickness of the paper into appropriate axis and you are done. No need to move the table to reset the counter to zero. So if you are looking to buy a DRO display, get one with LCD display.

[@jamesallen3799]

Excellent: Most Happy New Year. Great to see you back

[@joell439]

Thanks so much Stefan. You are an excellent, patient teacher. I watched every second and learned quite a few things. 👍👍😎👍👍

[@andrewnormansell1518]

Brilliantly clear and very helpful. Great video. Thanks for posting.

[@brianwarburton4482]

Thank you very much Stefan. Your videos are excellent and very much appreciated.

[@tomthumb3085]

Another interesting and valuable video, thanks Stefan.

[@hamedhashemi7951]

You are a great teacher Stefan

[@alexvonbosse5090]

Excellent information/instructions for edge finding. Thanks for sharing and keep up your great work!

[@donteeple6124]

As always your dedication to precision and excellent manner in which you present your topics is beyond reproach. I have learned more from your presentations than I could ever have imagined. Wished i lived closer so i could just absorb some of your knowledge from being there at your shop and hanging out. Thank you for for being THE PROFESSOR and opening our eyes.

[@jonsworkshop]

Great comparison of different techniques Stefan, well explained and verified by checking your collet runout. Great video, thanks for sharing. Cheers, Jon

[@MattysWorkshop]

Gday Stefan, very well explained, lots of useful tips that always come in handy, thanks for taking the time to do this, throughly enjoyed, cheers Matty

[@jdmccorful]

Stevie, practice ,practice , practice for me in learning. Thanks for the good demo.

[@davidjames1007]

Thank you, I am just a hobby machinist and the only system I was familiar with was the edge finder. It was great to learn about the other system

[@stevensmart8868]

Thanks Stefan. Good content once again.

[@sharkbaitsurfer]

Magnificently demonstrated and explained - thank you - I now have the techniques and knowledge that I needed for some projects to move forward.

[@bertblankenstein3738]

Thank you for making this video. Lots of good stuff here.

[@AmateurRedneckWorkshop]

Very good video. So many ways to find the edge. I like your third choice best.

[@Ballba365]

Thanks Stefan, that was incredibly interesting and practical. Cheers Matt 🇦🇺

[@jeffwombold9167]

Another thing you can do which I have found works reasonably well is to just catch the paper with the end mill and pull it back, (with enough area for a micrometer tip), and then measure the paper thickness with your mics. I've also noticed that providing the pin has no runout, you should be able to see light past it down to .0002 of an inch. Most of these methods you have described very well and work fine for most purposes. Another trick I use occasionally is to clamp the part in your vice, then swing a radius between the vice jaws near the part, then zero the indicator in the center of the jaws, then you know exactly half that (thickness) to then indicate the sides of the part to center of the spindle. Good video.

[@StuartsShed]

Thanks for this explanation - I have had difficulty getting my head around setting up a DTI to sweep a diameter. Between this and Joe Pies recent video it’s nice and clear now. The demonstration of effect of spindle run out on edge finding technique was especially interesting.

[@windrk_6754]

Great video, Stefan! During the past year, having a little more time on my hands, frustrated with a cheapie spindle indicator holder, I made an indicator holder a little like yours, and one feature I found I really like is a fine adjust.. not an essential but makes things even more convenient.. I also worked out a way for none of the thumbscrews to loosen from pivoting the joints.

[@321mann9]

Saw this techniques several times. But no one explained it properly. Thank you very much for sharing your knowledge!

[@betlw]

Thank you for your very informative videos your knowledge and passion makes your videos a joy to watch. I’d like also to say that your effort of doing this in English is commendable.

[@cherryporter3277]

Note that even the highest precision ball bearing has some internal clearance. Great video.

[@copasetic216]

Good to see a video from you man!

[@berniemcgee2964]

Great video, thanks for posting!

[@foolio42]

Just today, I changed to a collet just to use my edge finder and then back to my drill chuck. Now I know that I don't need to do that. This bit of information will save me material amounts of time. Thank you!

[@FriedrichSchmidgall]

it took like 5 videos by 3 youtube machinists to finally understand how the edge finder works mechanically. its running truer, because it starts hitting the thing until the thing is being hit continuously!

[@DudleyToolwright]

Excellent explanations. I richly enjoyed the content.

[@SailingYachtDreamcatcher]

Excellent content!

[@jasonhutchinson8534]

Thanks Stefan.. good information as always.

[@peteabc1]

Seems that buch has all the answers! Thanks for such a great tip!

[@gerardobelink2568]

Thanks for sharing. It is very interesting the explanation of the different techniques.

[@CraigLYoung]

Thanks for sharing!

[@chrisj4570g]

Awesome! I’ll be making your indicator holder. 👊

[@bobuk5722]

Hi Stefan. Another masterclass effortless delivered - well, it seems like that! Really helpful for me. I've just started using screw shank end mills as I had too much trouble with plain shanks moving in ER collets. Being able to use an indicator on the new mill chuck saves a lot of agro. Simple when you know! I think as a result of this I'll bring forward fitting a DRO. BobUK.

[@mikemichelizzi2023]

Well explained and demonstrated, thanks!

[@TheKnacklersWorkshop]

Hello Mr. Gotteswinter, Thank you for taking the time to make this video... It was very useful... Take care. Paul,,

[@robertdebusk6157]

I very much enjoyed the edge finding, and radius setting technique. You stimulate the mind as you teach, Spellbinding. Only complaint, You only post so often. I can never get enough. Take Care and Stay Safe. Bob

[@robbvk6es]

A variation of the Renzetti fine adjust would make a nice addition to the Indicol indicator clamp.

[@xxDarkDragon15xx]

Thank you so much for compering these techniques Stefan. I always wondered how much error the edge finder was introducing when it was "kicked off", since it was moved a bit of its "true" centre. The comparison at 16:00 put my heart at rest since now at least I know it must be below +/- 10 microns (granted this will also depend on the style and quality of edge finder used). Thank you so much for the video!

[@Engineerd3d]

Stefan welcome back. I was looking forward to seeing a video from you. I hope your doing well.

[@craigtate5930]

Great stuff. Love your coffee mug

[@cristinelpricop]

THE BEST VIDEO YOU CAN WATCH ON THIS SUBJECT!!

[@tylerstewart1471]

Stefan, I was thinking about the 20 micron discrepancy and I remembered your discussion from a year or so ago when you showed how the indicator holder could be a source of the problem ( from slop in the joints ). The holder mounts to the spindle and has two pivot points prior to the dovetail mount of the indicator.

[@fredgenius]

Thanks! I find a lower speed works best for the spring-type edge finder. At 1000 rpm I can see it snap away, but at 500 rpm I can see when it just starts to move.

[@Doug_Edwards]

Thanks Stefan, watched on your birthday!

[@than_vg]

yes we did enjoy, many thanks!

[@normanfeinberg9968]

Excellent teaching.You would make a fine professional teacher.Thank's for sharin

[@angelramos-2005]

Excellent info.Thank you

[@sampitts7044]

Thanks Stefan I didn't know you could use test indicator that way.

[@howardosborne8647]

Excellent video on the pros and cons of the various methods. Like you,I prefer the rotating edge finder for edge locations and the finger indicator on a 'C' type spindle holder for centering on round features. As you say, the coaxial indicators are very good but take up a lot of headroom due to the length of the body. All good stuff,Stefan.👍

[@agie170hss2]

Stefan, Regarding 28:40--29:10, as far as the indicator is concerned, I believe it's technically the "low spot" being found, not the high spot. Great and useful video, as always!

[@wilcojuffer5940]

It whas a slip of the tongue 😉

[@glennstasse5698]

A nice tutorial. Thanks!

[@SamEEE12]

I am a simple man, when I see a Stefan Gotteswinter video; I smash the 'like' button.

[@gukalaro]

That was very interesting for me. Thanks!

[@priority2]

Welcome back good sir...missed you👍🏻

[@ianhand4845]

Thanks for a great explanation for an untrained hobbyist. I enjoy your videos

[@EdgePrecision]

Good very clear explanation 👍💪

[@pensivity]

Ah Stefan, absolutely brilliant as always. Love your work,. Thank you!

[@pensivity]

Oops, apologies for the misspelling Stefan.

[@bobvines00]

@@pensivity Craige, you can edit your comments to correct misspellings, etc. Move your mouse/pointer to the right-hand side of the comment, click on the three dots, and select edit.

[@billlee5307]

Very useful video. I would like to see a video on the more "expensive" edge finders.

[@stevemaynardsmith4726]

Very good! I generally use the 'wobbler' but from time to time use rice paper (cig paper).

[@metusa666]

Thanks for the video very well explained

[@kennethroth1739]

Thank you for your overview of edge findings. As you pointed out, these methods are useful for more than just edges. I missed the example of using a “chair” as an edge finding tool. Didn’t you offer an explanation of their use several years ago? This is MY go to method if I really want to know where an edge is on a milling machine and I really thought you were the person who was introduced the practice to me. Thanks again for all your lessons; the are fun and enjoyable

[@petrakis1]

Sehr gut Stefan. Welcome back.🇦🇺

[@jefflastofka9289]

Nice to have you back! Getting worried you might have gotten the virus or something:-) I like the wobbly edge finders that kick off to the side, too, but maybe I'll buy a nicer one like yours now. I often just use a dowel pin and cigarette paper though. Most of my work isn't too critical of tiny errors. I usually make parts for my own use and I know which dimensions are fussy and which aren't.

[@luisalbertotrazzi7366]

Thanks for sharing.

[@jlippencott1]

Another use for a (standard) edge finder is for finding centers of holes, using the 1/2 feature of your DRO. Just start off with your finder somewhere arbitrarily inside the hole (it doesn't seem to matter exactly where) and do a move in one axis to each side, using the 1/2 calculation to find that axis' center, and then repeat for the other axis. You can do a double check to be sure once you have established what you believe to be the center, but I have found it not usually necessary. You can do this on any size hole that the edge finder will (at least) loosely fit into. I do this routinely, and have checked with a test indicator for accuracy, finding it always within a half thou. Just make sure the hole is round, clean and smooth for the best result. I believe it is a quite reliable method and saves lots of time. Try it yourself and see.

[@AlexCNC]

Thanks for sharing that with us :)

[@eineschoneabend]

cool bearing edge finder :) Will make one tomorrow. Great

[@TomChame]

Excellent, thanks.

[@EmmaRitson]

thanks so much.