In this video we continue with the cylindrical grinding of the edge finder using the Harig Grind-all and Wee Vee blocks. We also face grind the end mating surfaces perpendicular to the diameters in preparation for the lapping.
Пікірлер: 98
@carlmanchester50288 жыл бұрын
My vote is for "Narwahl Edgefinder". Thanks Tom!
@ThisOldTony8 жыл бұрын
always a pleasure to see SG coverage. have to admit it looked like you were going to fowl the wheel guard from where i was standing. edge of my seat! looking forward to the rest.
@seanflanagan56748 жыл бұрын
+This Old Tony My "complaint" as well -- I hated not having a view of the gap between fixture and wheel, and puckered extremely in this vid when he ran the wheel in so close in the last setup! (hmm... now it occurs to me that he must have been grinning like a mean cat, knowing it would freak folks out!)
@jazzyjay11503 жыл бұрын
Strange breed you folk are.
@Hardturnin8 жыл бұрын
I have no problems with your process progression at all. I am totally focused upon both part one and part two. I like the reach of the edge finder and find this a very interesting and entertaining project. You hit the baseball out for a home run. I have never purchases mini V blocks (or Wee Blocks) and I think it will be a wise investment for me. I like your whirly gig spinner and was not surprised at all that you prepped the wheel before starting. Very Pro as usual Tom. I liked your attention to the screw so no mark was made. I like Brass shim bent to fit and slide yet copper would be my smart choice as I love the stuff.
@KnolltopFarms8 жыл бұрын
A "Baby Gronk" sounds like something Pebbles from the Flintstones would order at the drive in after Fred orders his Brontosaurus Burger :) Thanks for the show, Aloha...Chuck
@MrShobar8 жыл бұрын
Nice work. Don Bailey would approve...
@johnbazaar84408 жыл бұрын
I was betting that indexer was going to get an electric motor. Interesting clamp arrangement, both part to indexer and indexer to table. Thanks, John
@outsidescrewball8 жыл бұрын
Nice! Enjoyed
@coldformer18 жыл бұрын
another great vidjeo as ave would say cant wait to see the spring connection
@bcbloc028 жыл бұрын
Interesting project. I am interested to see how you maintain the faces being square to the shank when lapping.
@duobob8 жыл бұрын
+bcbloc02 +1. That will be interesting.
@TheMetalButcher8 жыл бұрын
+bcbloc02 Same here. A sort of floating v-block that works similar to that surface comparator shown in the surface plate video is what I'm expecting.
@phooesnax8 жыл бұрын
Cool project. I had to laugh at the drill though. All those great industrial tools and there we are with a drill that looks more like a kids sneaker:-0) Funny how design used to be just what is needed and now it looks like space ship. Great work Tom! Thank you
@KingNast8 жыл бұрын
Yeah, what is it with these designs? Some Hitachi chop saws would look right at home on the set of Alien.
@RichardHeadGaming8 жыл бұрын
That mirror looks like it gives the perfect vantage point without having your face in danger.
@jeffmoss268 жыл бұрын
great work as always Tom!
@AmateurRedneckWorkshop8 жыл бұрын
Great project. Thanks for the video.
@mikeadrover51738 жыл бұрын
Thanks Tom I always Enjoy your vids! ~M~
@OUMagMan8 жыл бұрын
Excellent! Sure hope you're doing a bit on the "lapping" as well - I haven't lapped anything (we're talking about metal and machines now) since the old Briggs & Tecumseh mower's valve job days! Thanks! Jim@MidOhio
@shawnmrfixitlee64788 жыл бұрын
I'm like'en this tool build Tom .. Good work man ! Thumbs up..
@Rocky12347328 жыл бұрын
Great project. Thanks
@alepadavano2278 жыл бұрын
I was very impressed with this one. Let others remark with more authority about your machining,which even I as a rank amateur find extraordinary. your precision alone warrants that declaration. Nevertheless from an artsfartsy point of view the entire video was expertly cropped as well as the lighting. Because much of machining has to be done with an deafness aimed towards symmetry up t stands to reason that this inclination gives you hands up in your vid work. if in was still able to work I would immediately see a fellow compatriot in photography. Booth and you have I think a artists inclination. I spent a lot of time evaluating students an d guiding them as best I could I would have been honored to have both or either of you in this respect. I know go away Al, seeya Oxboy
@raincoast23968 жыл бұрын
A master tool maker at the top of his game, right down to the "baby gronk"! lol
@8860148 жыл бұрын
Very cool little project. I do think sometimes it's easier to set up on the surface plate and slide the whole shebang on to the chuck, but obviously sometimes that's not possible.
@svenp65048 жыл бұрын
It seems to me the narrow, center part of the 'pecker' should have been ground first so that you'd have that true cylinder to mount/remount in the v block. It could have been warped from the heat treat which would end up giving you runout at the tip, no?
@oxtoolco8 жыл бұрын
+svenp Hi Sven, You are correct that if it was badly warped it would be a problem. The tool is self proving when you test it as a system in the end. Stay tuned. Thanks for the comment. Cheers, Tom
@Ropetangler8 жыл бұрын
+oxtoolco I must say that I was thinking on the same lines as Sven, I couldn't see how you could have decent co-axial alignment between the ends, having ground the shoulder end first. I look forward to your explanation and demonstration as to how you get it done. Thanks again for all your great video work Tom, while I always give your episodes a like, I don't always say thanks for your considerable effort, so a very big THANK YOU from Australia, Cheers, RT
@oxtoolco8 жыл бұрын
+Rope Tangler The center section was turned round with the other two diameters. It was not significantly off even after heat treatment. Remember this is a visual tool. Consistent jump is what we care about here not absolute geometry. Thanks for the comment. Cheers, Tom
@robertkutz8 жыл бұрын
nice work.
@fpoastro8 жыл бұрын
Probably a goofy question but during the making process what causes a part (the small part in the video) to become slightly magnetized? Is it just coming in contact with magnetic tools/items in the shop? Something do do with the machining? And assuming its just the conventional rub against a magnet to de-magnetize?
@CMAenergy6 жыл бұрын
Personally I would have lubricated the sides on your clamping system as well the adjustment screws, You probably would have been able to adjust much closer with your dial indicator,
@Iceberg8630010 ай бұрын
And rotate the part in the opposite direction so the surface being indicated is moving away from the indicator. (Or keep the rotation & indicate from the bottom if using a push/pull indicator (can't remember the technical term, but specs would be something like .005" - 0 - .005")) I'd actually love to see a comparison b/c while "always set up with the friction vector pointed away from the indicator/stylus" was repeated ad nauseam, I've never seen a real world demonstration looking at the variance in accuracy/precision. It's simply one of those things that has always been trusted b/c the reasoning was very sound. 🤷♂️
@brettwatty1018 жыл бұрын
Cool work mate. It would be awesome if you hoked up a stepper motor to your setup.
@TheStuartYork7 жыл бұрын
This is is a hugely interesting build. Thank you for taking the time make the tutorial. The large combination Vee block you clamped down onto looks super useful, can you give details of were to purchase one? Best Stuart
@oxtoolco7 жыл бұрын
Hi Stuart, That particular block was made by a friend of mine. Its a total custom block with about fifty features on it. Its a great project if you want to build something that requires a bunch of grinding. Thanks for the comment. Cheers, Tom
@indestructibleinsertman21688 жыл бұрын
Did you ever have any issues with generating heat on the small parts during grinding? Just curious if you had to let cool in between passes so as not to risk wrecking the heat treatment? Thanks for all the content you bring to us amateurs!
@Jccarlton14008 жыл бұрын
What's the advantage of using V blocks rather than collets?
@johngermain35358 жыл бұрын
nice getting close. to use.
@RobertPerrigoOkiechopper8 жыл бұрын
Thumbs up
@c5h5nino248 жыл бұрын
Another great video! Would you be willing to post prints of your design? I would love to make one!
@douro203 жыл бұрын
I'd imagine that Suburban sine plate cost almost as much as the #1 Harig Grind-All.
@EtherTrace4 жыл бұрын
Any idea how significant the concentricity error between the shaft and the contact tip would have to be before it would cause the edge finder to give a faulty reading? Just something I was thinking about given the features that you can't grind with this setup. Got me wondering about how a lack of mass balance around the axis of rotation could affect the function.
@stuarthardy46268 жыл бұрын
Tom Again very interesting video But how do you test to see if the part is true cylinder , using a Mike will not test for that ? I know I am being pedantic but my inquiring mind would like to know Stuart
@oxtoolco8 жыл бұрын
+Stuart Hardy Hey Stuart, It doesn't really matter in this case. Its not a cylindrical journal running in a bore. Its a visual tool. As long as the two diameters are the same and concentric the tool will work. The face to the cylindrical part is what is important and will come out in the testing. Thanks for the comment. Cheers, Tom
@stuarthardy46268 жыл бұрын
+oxtoolco Tom thanks for the reply , maybe you could cover the measurement aspect in a future video Stuart
@MostFolkCallMeOrangeJoe8 жыл бұрын
+oxtoolco Just out of curiosity, is there a method for checking the roundness of a part using more basic metrology equipment, preferably something self verifying. The only way I know of is with a Talyrond.
@Barefoot3us8 жыл бұрын
Hi Tom, I'm wondering there must not be much pressure between the grinding wheel and the shaft? Also your assortment of smaller or miniature tools for holding small shafts is very impressive I've never seen the miniature V-Blocks. I sure have enjoyed these two videos about your edge finder. I guess there will be a part 3 to finish up? Thank you, Jeff
@oxtoolco8 жыл бұрын
+Jeff Bernstein Hey Jeff, Got to go small since Adam has the big stuff well covered. Should be four parts to this. Thanks for the comment. Cheers, Tom
@Barefoot3us8 жыл бұрын
+oxtoolco Tom, You're right when it comes to Adam having the big stuff covered!
@wupme8 жыл бұрын
+Jeff Bernstein well Adam is doing the Abom sized stuff :)
@poozandweeez8 жыл бұрын
when are you getting your new cylindrical grinder up and running???
@StephenCoxfixit8 жыл бұрын
Is a test indicator setup like that more accurate then setting up a dial indicator 90deg to the part?
@chemech8 жыл бұрын
+Stephen Cox Test indicators are typically more precise (repeatable) with graduations of 0.0005" or in this case 0.0001" (one tenth of a mil, or 1/10000 inch). Dial indicators lack the precision, as they are typically only capable of reading +/- 0.001" Accuracy depends upon your setup. The beauty of the test indicator is that the ball nose on the tip of the stylus allows it to work while slightly off-axis, while your typical dial indicator is a very axial device. It's a matter of horses for courses - using the right tool for the job... Cheers, Eric
@StephenCoxfixit8 жыл бұрын
Thanks Eric!
@chemech8 жыл бұрын
de Nada! BTW - Mr. Pete (mrpete222 on KZfaq) just touched on this briefly in his latest video, where he installs and trues up a new lathe chuck...
@gordoneckler45378 жыл бұрын
You didn't show how you indicated the small end of the little piece with the larger end of that piece in the Vee Block!!
@Lawnmowerman023468 жыл бұрын
Am I missing something ? Ware are the pins and holes for the springs ?
@dlstanf28 жыл бұрын
between you operating the x-axis & your drill having the "weeble wobbles" you got my vertigo going. Too much action at one time. The drill wobble doesn't affect the grind?
@patricksworkshop60106 жыл бұрын
dlstanf2 no because the spindle is in “perfect” bearings the wobble is no problem
@Jpmhp23948 жыл бұрын
does anyone remember where Tom got that custom leather apron and a link or contact to the website...........
@billdlv8 жыл бұрын
Looks good Tom, a little hard to hear you over the grinder sometimes. May just be my device...
@wupme8 жыл бұрын
+Bill De La Vega nah its even on my studio headphones. He should try to lower that noise. Maybe using noise profiling (if his editing software supports that) to lower it to a volume so we can hear him better.
@larrysperling88018 жыл бұрын
really like this surface grinder work. your pieces seemed to have maintained a high degree of concentricity after heat treating. is there a secret to this.
@oxtoolco8 жыл бұрын
+larry sperling Hi Larry, This was 52100 steel which is pretty stable in heat treat. Proper quench rate and medium is one secret. In other words don't use old motor oil or transmission fluid. Thanks for the comment. Cheers, Tom
@ikbendusan8 жыл бұрын
+oxtoolco what about new motor oil
@pierresgarage26878 жыл бұрын
+Dušan Pešić  If you really want to use something other than specialized oil, use canola or olive oil before motor oil... ;) Also the way you introduce the part in oil will determine most of the distortion you may get...
@ikbendusan8 жыл бұрын
interesting, thank you
@jomgelborn8 жыл бұрын
My surface grinder doesn't make much noise. Did you buy yours at Harbor Freight?
@oxtoolco8 жыл бұрын
+John Welden Hey John, You got that right. Motor bearings have had it. Going to send the whole spindle in for rebuild here pretty soon. It drives me nuts as well. Thanks for the comment. Cheers, Tom
@vladromano55998 жыл бұрын
Vé avec étrier de bridage - that`s the french designation :)
@codyrasberry41328 жыл бұрын
I'm not doubting your judgment by any means but are those indexers made to be continuously rotated?
@coldformer18 жыл бұрын
+Cody Rasberry no 1 rpm every other tuesday
@codyrasberry41328 жыл бұрын
+Jerry Schram haha that's funny Tom. Oh wait... That's right you're not Tom.
@coldformer18 жыл бұрын
+Cody Rasberryi am not Tom but i did stay at a holiday inn last night
@codyrasberry41328 жыл бұрын
+Jerry Schram that's amazing. Tell it again.
@powaybob8 жыл бұрын
+Cody Rasberry To answer your question. Yes, that is exactly what those indexers/spinners are made for.
@dennyskerb49926 жыл бұрын
The angle of the dangle was deceiving with camera position
@jeffsilence77858 жыл бұрын
That's one annoying whine coming off that grinder !!
@bobengelhardt8564 жыл бұрын
10:44
@brianhostak39618 жыл бұрын
Very interesting Tom. I 'm going try the cylinder grind.Always something new from you. Keep up the great videos.Thank you.
@IlhanNegis6 жыл бұрын
that precision, almost pornographic
@McFingal8 жыл бұрын
How does this get three thumbs down? Someone tell me what he did wrong so I know what I'm looking at. Because I didn't see anything done incorrectly.
@davidengland47318 жыл бұрын
+The Texas Gun Guy there's always some ass.
@juanrivero88 жыл бұрын
+The Texas Gun Guy Either a professional troll or some teenager being destructive.
@codyrasberry41328 жыл бұрын
Bunch of jealous guys don't know a pro when they see one if I was guessing.
@wupme8 жыл бұрын
+The Texas Gun Guy every person has a right to their opinion, and the right for it to be different than yours. For example they might dislike that you almost can't hear him because of the grinders noise. +DAVID ENGLAND Juan Rivero Cody Rasberry So everybody with a different opinion than you guys has to be either an ass, a troll, destructive teenager or somebody jelly?
@McFingal8 жыл бұрын
+djteac Hey if that's the issue then tell him so he can correct the error. Just giving someone a thumbs down without the reason why is of no help to anyone. I used to have a saying in the army, (If you see me doing something so stupid that it might cost me my life or the lives of others stop me) That saying applied to everyone, from private to general. Life is to short to allow egos and stupidity to get in the way and end it.
@twobob4 жыл бұрын
Part1 private PePeHands. ;)
@Opinionator528 жыл бұрын
Looking good Tom,,, Thanks for sharing this,,, it is a handy tool! :o) O,,,
@macgyver151478 жыл бұрын
Too much work. You will never hear me complain about spending $50 for a good one again.
@sheikyerbouti834 жыл бұрын
That grinding setup is the absolute definition of dodgey. You should really change the name of the video to "cleverly making do" because it's not within shouting distance of being precision toolmaking/
@johncarey91495 жыл бұрын
Sorry Tom, I had to put a dislike on this video. The sound levels are dreadful, with the howling wine of the grinder being such that if I turned the volume down on the TV to a tolerable level, I couldn't hear what you were saying. I sincerely hope that you wear hearing protection when you are working with these machines ... :-)