Grinding the V Block pt 2

[@ROBRENZ]

Thanks for the kind words Steve! Very nice work and instruction. ATB, Robin

[@SolidRockMachineShopInc]

You're welcome Robin. Steve

[@duobob]

OK, I've got it now. Your roughing is just a little better than twice as good as my finishing... ;-) Your commenting while working just keeps getting better and better, Steve. You are an excellent teacher as well as a truly professional grinder hand.

[@SolidRockMachineShopInc]

Thanks Bob.

[@ActiveAtom]

Oh part of today's lesson we do already, finally we know something here the oil stoning of our hardened steel tools we do that and storage is everything oiled and ready for that next use. We do come here to learn you are great in your grinding work the prep, the wheel maintenance and other things (pre-coolant temperature balance) a likely hundreds more to follow and share with us, we are happy to be here and you for sharing with the rest of us. Side wheel work is a new lesson coming up. Keith talked about you and I think you sons boring bar in his most resent video, he is a really nice guy. I am surprised you can just hold that 7 inch bar in the "V" block by hand instead of mounting it, nothing here, I do not know just asking about it Steve. Great "V" block results none the less.

[@SolidRockMachineShopInc]

Hi Active Atom, These are special bench stones that have been ground flat using a diamond wheel. Here is a link to Robin R. video where I learned of them. I held the test bar by hand to apply even pressure along the V. If I used a clamp I I would have a greater chance of error. I learned this a long time ago the clamp position and clamp pressure will greatly affect the part. I will have to demonstrate this in future videos. kzbin.info/www/bejne/eoeviaanbNWcb7s Steve

[@ActiveAtom]

@@SolidRockMachineShopInc In your busy schedule hearing about the lesson of using the hand would make for a GREAT lesson as I was thinking this morning, what is he doing without a clamp so I asked and now I will learn from you, thank you again very much, I will view Robin R video as well.

[@ericrichards5862]

Thanks Steve, Always learn and enjoy watching your videos.

[@SolidRockMachineShopInc]

You're welcome Eric. Steve

[@stefanstamatov7725]

im very confused in inches.THANK YOU for that metric suitcharoo.Your part is now in nanometers range.Flat within 0.0005mm.Thats incredible.Thanks for the videos and happy new year to you and all off your family

[@SolidRockMachineShopInc]

You are very welcome and we wish the best to you and your family as well. Steve

[@gerardlochmans589]

Thank You so much for your in depth videos and showing also the measurements in metric!!!!

[@SolidRockMachineShopInc]

You're welcome. Seventy7 Industries made that request and I thought it was a great Idea. We have many expressing thanks for that I will try and do it more often. Steve

[@DK-vx1zc]

Great tips!!! Thanks.. I really enjoy your videos

[@SolidRockMachineShopInc]

Thanks D K. Steve

[@Stikker021]

New to your channel and really enjoying the content. Got lots to binge-watch now. Heard about you on Keith Ruckers channel. You've probably seen a large climb in your subscriptions lately as a result. Great to have a third hand sometimes to tighten the odd bolt, wish I had one. 😁 (Thanks Kathy)

[@kathyb7126]

Lol thanks! We have noticed a climb in our subscribers and we appreciate Mr. Rucker giving us a shout out.

[@SolidRockMachineShopInc]

Hi Douglas, Welcome to the channel. Yes, we have been getting a steady climb in new subscribers. We really appreciate Keith's shout out. Steve

[@warrenjones744]

Another good one Steve. learning a lot from you.

[@SolidRockMachineShopInc]

Thanks Warren. Steve

[@outsidescrewball]

great video/discussion/demonstration....lots of information

[@SolidRockMachineShopInc]

Thanks Chuck. Steve

[@RyanWeishalla]

Keith's going to have the most accurate boring bar out there. Looking forward to Kat's pop quiz on the v-block grinding tomorrow. :-)

[@kathyb7126]

Am I giving the quiz or taking the quiz? Either way it's gonna be the shortest quiz in history, lol.

[@intagliode]

Nailed the metric bit! Great video!

[@SolidRockMachineShopInc]

Thanks! Steve

[@intagliode]

Solid Rock Machine Shop Inc. also when your on 10 micron setting. Each division is 0.5 microns. (Half a micron) 10 microns is .01mm . 1 micron is .001mm

[@SolidRockMachineShopInc]

So, .5 micron is about 20 millionth of an inch?

[@intagliode]

Solid Rock Machine Shop Inc. Yeah you got it 19.68 millionths of an inch.

[@chrisfaulkner2589]

Very cool Can someone tell me what the name of that measuring device is please. Thanks

[@SolidRockMachineShopInc]

Hi Chris, That is a Federal Gauge Amplifier. Steve

[@davidmoore5021]

Thank you for sharing.

[@SolidRockMachineShopInc]

You're welcome David. Steve

[@robc2536]

Beautiful work Steve and lot's of good information on precision grinding. It looks like there are three small tapped or counter-bored holes at the bottom of the vee. Are they for bolting a stop block into the vee or for something else?

[@SolidRockMachineShopInc]

Hi Rob, Those are 10-32 tapped holes. They are multi use but the primary use is for extra fine adjustment of parts that need that extra little pressure point to dial the part in. You have to be very careful so that you don't distort the part. I used them a couple of times already just to get that extra .0001" adjustment and so far it has worked great. Steve

[@bcbloc02]

In your first setup with the v where you had it bolted like it normally goes any out of squareness in your block would amplify your error readings on the bar.

[@SolidRockMachineShopInc]

Hi Brian, It wasn't that bad to begin with and I corrected most of it by clamping the other way. Here is the Instagram taking the reading from the bottom of the block after regrinding. instagram.com/p/BrI9oX4gisZ/ The bottom has been re squared to the mounting side. Steve

[@adamgalowitz1129]

Great video. Question: any circumstances where you would side grind the second vee (say to avoid removing the block for a second setup)?

[@SolidRockMachineShopInc]

Hi Adam, That is a very good question. Sometimes you have no choice but to grind with the side of the wheel but if I can grind with the bottom of the wheel I always prefer that. I have much better control and accuracy with the bottom of the wheel than with the sides. Steve

[@somebodyelse6673]

Do you dress the side of the wheel when side grinding is necessary?

[@SolidRockMachineShopInc]

@@somebodyelse6673 Yes! Also, you need to cup the side wheel so that you have only a small lip that actually touches the part. Steve

[@James-fs4rn]

Nice! Was there stressed relief when you ground the V, which caused the part to move? Thanks!

[@SolidRockMachineShopInc]

That's possible but I think it was the way I clamped it. could see it when I tried clamping it the same way on the Square Block and then switched to 2 hold down clamps. Steve

[@metalworksmachineshop]

Thanks so much for the video. I have a very nice 6x12 BS . And trying to grind within .0005 now knowing how small that is , i cant imagine how to get to under 50mill.

[@SolidRockMachineShopInc]

If your grinder is in good shape with just a little practice and proper methods you will be able to hit .0005 without much effort. The 2 biggest things to master in my opinion are wheel selection and wheel dressing. Heat will be one of the biggest enemies to control. Steve

[@Fischer977]

Your grinder looks like you got it yesterday. Mine looks like garbage in comparison. Not to mention my Russian employe throwing cigarettes into it

[@SolidRockMachineShopInc]

We bought it new but I do have some cleaning to do on it. Steve

[@RGSABloke]

Solid Rock 'Really Rocks', thanks for sharing. Kindest regards from Bonnie Scotland. Joe. PS Have you kids talked you know who into the 2019 Summer Bash? I can see you offering a Tom Lipton type challenge👍

[@kathyb7126]

We plan on being at the Summer Bash 2019, we were there for the 2018 one and Dad taught a grinding class there. It was our brother, Jeremiah we were trying to convince to come with us and I think he is going to go!

[@safeaegis]

very cool

[@SolidRockMachineShopInc]

Thanks. Steve

[@infoanorexic]

Between you and Stan and Tom, I just might get enough absorbed to get something within 0.002 on the old DoAll/CatchAll .

[@SolidRockMachineShopInc]

Is the doall in good shape? Steve

[@infoanorexic]

@@SolidRockMachineShopInc I know that the table ways were scraped in, the guy I bought it from said that he was told that it was "re-conditioned" sometime in the early '90's, and had seen little use since then. After a touch with the stone, the ways showed no sign of wear, they only needed a bit of surface rust removed. Power is the big roadblock on it right now, and I'll need to acquire the needed bits like a diamond dresser and tools for changing wheels ... and more wheels, of course. My "Franken-verter" can't handle spindle and pump motors at the same time. Mag chuck power is an old tube supply, but it does seem to work O.K. It's a D-8, big and very heavy. I sometimes wonder if I haven't bitten off more than I can chew with this one.

[@maxbray9124]

Steve, would you be interested in quoting some keyseater cutters made of M42 for a Fromag keyseater, I can email you a drawing , thank you

[@SolidRockMachineShopInc]

Hi Max, I have too many projects going right now. Because of my full time job and other responsibilities I only have 10 to 15 hours a week that I can delicate to Solid Rock. I have about 8 more Squaring Blocks to do, 21 Low Precision Sine Plates and the development of a 3/4" boring bar. I have been putting my personal projects on hold to tackle these projects. I really appreciate the offer but I am way behind where I want to be with these other projects right now. Steve

[@BigBoss-rh7zq]

Thanks for switching to micros...

[@SolidRockMachineShopInc]

You're welcome. Steve

[@Watchyn_Yarwood]

1 micron = 0.0000393700787402 inches

[@SolidRockMachineShopInc]

Thanks. Steve

[@BigBoss-rh7zq]

With metric your resolution is busted approx 2.5....

[@SolidRockMachineShopInc]

Hi Big Boss, Can you elaborate on that, are you talking about the 2.5 minute mark? Steve

[@BigBoss-rh7zq]

I mean that "your" 1 tens equals "our" 2.54 microns. Our 1 micron equals your 0,0000393 inches.

[@BigBoss-rh7zq]

I means that "your" 1 tens equals "our 2.54 microns. Our 1 microns equals your 0,0000393 inches.

[@SolidRockMachineShopInc]

@@BigBoss-rh7zq Oh ok, thank you. I thought you meant our unit was broken. Steve