How to ID grind within .0002 made easy by Don Bailey

[@duobob]

Great video, Don. The best part is that even after so many years of doing the work, and so many years away from the hands-on work, you still have a passion for it.

[@rogermisner3368]

Any shop that is going to purchase an Internal Grinder should seriously consider investing in a variable speed spindle motor. The operator can make a "K" wheel "act" like a "J" or an "L" wheel by decreasing or increasing the wheel speed. A wheel "acting'" too soft will break down too much, and a wheel "acting" too hard will load up. This is especially important in a high volume production setting. The operator in this video talked about wheel hardness and was aware that the wheel was "acting" too hard. Excellent how to video.

[@MrShobar]

I love micrometers and telescoping gages too, Don. It is a learned skill, though. You have to develop the feel, as you have mentioned. Many thanks for another interesting and informative video.

[@andregross7420]

These videos are just getting better and better. Thank you for sharing, Don! (and camera guy, can't forget him)

[@SuburbanToolInc]

+Andre Gross Thanks Andre, we are trying to get better with every new video.

[@clintbrown5789]

I was an internal grinder at a machine shop in the early 90s. Learnt from a really smart man. It was a challenge somedays. Turning into a lost trade. Now cncs do it at my workplace.

[@bcbloc02]

Great tip on the bowing the spuindle to get a couple of tenths and to prevent it from dragging coming out.

[@theslimeylimey]

Thanks Don! Your experience is clearly evident.

[@alfredcarbone3480]

I'M 65 wish i had a teacher like you, your Vid's are great Alfred Carbone, Salem, NH

[@turningpoint6643]

Another excellent video Don. And it's amazing just how well you've maintained that fine touch after being out of the shop for so long. Very interesting to see what a good mike and a good set of telescoping gauges are really capable of in the right hands. I can see I need a few ring gauges and lots of practice.

[@brettzahler7403]

Thanks for making these video's Now I want a surface grinder!

[@brianu2871]

I agree. I've always had good luck with telescoping gauges. Great video ! Would like to see you cover wheel types for surface grinding materials from HSS to soft steels. Watch all your videos. Great job and Thanks !

[@SuburbanToolInc]

+Brian U We will be making a video on grinding wheels in a couple of months.

[@davestrong6472]

great video, need more craftsman like you.....Dave

[@CarlAlban]

Brilliant as always Sir.

[@guyward5137]

Another great lesson from suburban tool. Thanks for sharing your time

[@nineringsh]

I really enjoy your videos. Hope some of your knowledge rubs off.

[@spirotagnw]

I am grateful you are sharing your knowledge and experience these are days where computerized machines crank out mass quantities of things but none very good the handcrafting of parts is a dying art. I'm telling you I find your videos terribly interesting, I'm not a machinist nor can I afford this as a hobby but you are inspiring me to get out in my shed and build some simple machinery and by using your techniques and knowledge base build better machinery and more complex machines. thank you for sharing.

[@SuburbanToolInc]

I'm glad to have been able to inspire you, that's one of our goals. Thanks for your comment, and thanks again for watching!

[@davidjames1007]

Thank you very much. I am a hobby machinist building small compression engines and I have been using telescopic gauges incorrectly. The ID and OD of the cylinder and piston must be perfect otherwise it wont run. Today I've learnt how to use a telescopic gauge, TQVM.

[@danielwerger5641]

Don, great video's... Thank you...!

[@dennislee444]

thanks for all your experience your freely sharing. much appreciated !!

[@SuburbanToolInc]

Your welcome

[@lennartb2982]

thank you very much its so interesting, from lennart in sweden

[@Meeky815]

thanks for the videos. I work in a machine shop, carbide manufacturing. o.d. grinding /step & taper all from senter's. making my own arbors. sunnen honing. blanchers. wish I had your lapping table. but I use Diamond compounds. even machines pressed powder before centering to rough core carbide.

[@mahocnc]

Goo job for an old guy lol...hard to grind that part within .0002 on thin sleeves, especially when chucked with 3 jaw chuck ...[no matter how little you tighten] will be out of round, [I hold in sleeves]..should be ground with coolant...and taper need to be checked...you only checked the center.

[@mfgman2011]

Well done Don!

[@LordPadriac]

If we were truly going for precision anything on a lathe wouldn't we be using a four jaw chuck?

[@maciejasz78]

Applying force to the spindle with your hand seems to be a cool trick to take the grinding wheel away from the part, but aren't you afraid of creating a taper when you pull it towards the part? How do you know it will flex maintaining the rotation axis? Experience? Well Ok, but it might not work the same on all machines.

[@maciejasz78]

+maciejasz78 Ok, I rethought what I wrote and realised that skewing the grinding wheel axis doesn't create a taper. Skewing spindle axis does. I should have thought twice before posting :)

[@chucksmalfus9623]

Don I really love your videos. Is there any deforming that thin ring holding it in the 3 jaw Chuck?

[@SuburbanToolInc]

+chuck smalfus Not at all , that is why I was so gentle with the chuck.

[@jcims]

Don, you need a leather beanie, haha. Just found your channel today from the investment casting video. These are super informative videos, thanks for putting them together!!!

[@Sketch1994]

+jcims Nah...a green beret would do! Keep up the great work and the best videos on youtube! Don Bailey for president!

[@nocturnodrummer]

Another great video and another question from me ;) I recently started machining on a jig grinder but well it's all very similar to cylindrical and the question is still valid. I've tried to grind a face of a part today and well.. I failed. I have a theory why. I think that I tried to grind to much surface with too small of a wheel. It cut with about 1/3 of a diameter and the rest was free. The face of the wheel was cup sized, not flat. It's a cbn wheel actually. What my problem is that my wheel seems to jam up and jump a bit and it's quite scarry to be honest. It happens immediately, the moment the wheel touches all of the surface at once. When it skims over and there is still old material seen underneath it's all fine..

[@SuburbanToolInc]

+nocturnodrummer Not quite sure what you are asking. Can you give a little more info.?

[@davesmith5921]

Very challenging . I'm grinding 6" o.d. thin wall A2 sleeve on a mag. Both i.d. and o.d. have less then .0002" tol. Also must run concentric. Using LL3 Bryant cnc with Norton sg wheel.

[@Jg-ni2qz]

Hey love your videos i have been a grinder fir almost 15 yrs doing specialty form grinding on centerless grinders .and some o.d. ...i want to be like you how can i start working on my own ? I have no clue were to start to work for myself .

[@Gottenhimfella]

Would the part be distorted slightly out of round by the chuck jaws restraining the (thermal) diameter growth?

[@punishr36]

Do you ever float a 3 jaw on the mag chuck for 3d indicating? Is that 3 jaw able to move radially on the mount? Great vid.

[@carloslemos3678]

very nice teaching. I'm just wondering, within this precision is it possible to make 'air tight' cylinder and piston few inches long? could you make a video on that? thanks

[@SuburbanToolInc]

It is possible, we'll write it in our books and save the idea. Thanks for the comment.

[@tomhassos1]

It looked like that the grinding wheel and chuck on your set up were running in the same direction I always thought that the part and the grinding wheel should turn in opposite direction like when grinding O.D ?.

[@SuburbanToolInc]

+tom hassos Good eye , it was because the spindle rpm was faster than it should be and I thought that running the same direction would help to some extent.

[@jeffhill8499]

Shouldn't check it while hot, the size will change when it cools!

[@SuburbanToolInc]

of course

[@avongil]

Jeff, Don is a seasoned pro. He felt the heat of the part and adjusted the od by going over a tenth or two as stated int he video. When the part cooled it was on size. When you see a man like this teaching, one should always pay close attention.

[@ganeshmohite2702]

Make a I'd lapping

[@pierresgarage2687]

Telescoping gauges and good micrometer, repeats within a few tenth with the right touch, ABSOLUTELY NEED GOOD QUALITY GAUGES................!!!!!!!!!!!!!! NO CHINESE CRAPS.........!!!!!!!!!!! Sorry for screaming, maybe worth mentioning in one of you future videos... Your presentations are getting better as time goes by.... Thanks, Pierre

[@Sketch1994]

I always try to confirm my ID measurments by checking with a known diameter pin and rolling papers as a filler. Ideally you want a pin that goes in with minute clearance, a slip fit with a rolling paper on one side and a snug fit with rolling papers on both sides. It's a lot less fuzy than trying to measure a tiny step on a flimsy thin walled brass part with and ID micrometer which can bite you if you even get close to using the clutch...

[@rickbrandt9559]

Pride/ability = well done

[@pumpSHO]

do you teach?

[@SuburbanToolInc]

only on youtube

[@pumpSHO]

@@SuburbanToolInc ok, I am grateful for your videos

[@ColSanders111]

Fantastic video but take off your watch!

[@shrimanthduddanagi6644]

Please send your machine prises