Big 45 Block (Part 2)

This is the rough grind of the Big 45 Block for Johnny Bellantuono. It also includes the grinding of the V in a V Block for Al in Dubai.

[@StefanGotteswinter]

Great looking v-block! Thanks for sharing the process and thought process.

[@SolidRockMachineShopInc]

Thanks Stefan and you are welcome.

[@homemadetools]

Great work. We shared this video on our homemade tools forum this week 😎

[@SolidRockMachineShopInc]

Awesome! Thank you! The most recent Instagram video on it has almost 100 thousand likes as of this reply. Steve

[@noneofabove5586]

Very nice Steve. Thanks 😊

[@SolidRockMachineShopInc]

Glad you enjoyed it

[@bcbloc02]

You certainly build a great foundation for accuracy to start from.

[@SolidRockMachineShopInc]

Thanks Brian.

[@James-fs4rn]

👍 love your work and appreciate the grinding lessons!

[@SolidRockMachineShopInc]

I appreciate that!

[@be007]

thanks for the vid mr burton ! greetings from the netherlands, ben.

[@SolidRockMachineShopInc]

My pleasure and greetings to you too.

[@CraigLYoung]

Thanks for sharing 👍

[@SolidRockMachineShopInc]

Thanks for watching

[@hullygully-3599]

Thanks for taking the time and effort to parody’s full video on this Steve. Very few toolmakers with decades of experience like you on you tube giving such clear milling and grinding tutorials. Thanks you sir.

[@hullygully-3599]

Produce not parody’s 😀

[@SolidRockMachineShopInc]

You are very welcome.

[@bclare2544]

Very interesting Steve.

[@SolidRockMachineShopInc]

Thanks.

[@johnjohn-pt7pe]

Your video made my day, thanks

[@SolidRockMachineShopInc]

Glad you enjoyed it!

[@joell439]

Always incredibly inspiring…… I need to watch your instagram more 👍😎👍

[@SolidRockMachineShopInc]

Thank you. Many times you will see short clips on Instagram before it is on KZbin and some of the stuff never makes it to KZbin.

[@danneumann3274]

this guy knows how to grind

[@SolidRockMachineShopInc]

Than you Dan.

[@billchiasson2019]

Truly amazing! In that world of metrology 50 millionths or less is such high bar to reach and you do this day in and day out! It’s awesome to see you work your magic! Thank you!.

[@SolidRockMachineShopInc]

Thank you very much for the kind words.

[@cameronmccreary4758]

Nice surface grinding work. Thank you.

[@SolidRockMachineShopInc]

Thank you too!

[@jackjr473]

IM learning about cbn wheels. Im finding out why I never had any luck using them in the past.

[@SolidRockMachineShopInc]

They can be tricky but once you know how to use them correctly they are worth there weight in gold.

[@raymondlee2680]

Steve,You never cease to Amaze me with your teachings!😀.on any feature Projects you do on you tube post a Dementional Drawing of part,so People's Eyeballs will Drool over it( LOL).

[@SolidRockMachineShopInc]

Thanks.

[@outsidescrewball]

Thank you for sharing your craftsmanship and knowledge, great video production/discussion/demonstration/build

[@SolidRockMachineShopInc]

Thanks for watching Chuck!

[@umahunter]

Simply beautiful work 👍👍👍

[@SolidRockMachineShopInc]

Thanks.

[@johnson2207]

The sine plate locking mechanism seems similar to the Taft Peirce style.

[@SolidRockMachineShopInc]

Yes, It is similar. I believe they use an expanding collet.

[@TrPrecisionMachining]

very good job solid rock machine..thanks for your time

[@SolidRockMachineShopInc]

Our pleasure!

[@raymondlee2680]

Can you show video of Drilling the angle block,well as drilling the hole in the center ( top of block. Inquiring minds of people seeing your stellar Professor machining work 👀

[@SolidRockMachineShopInc]

No, we have other videos planned for the future that will be better than basic drilling. The 1/2" C'bore was done half on both sides.

[@raymondlee2680]

Wow,That's neat and I love the videos that you put out!!!!😀 There are a lot of guys out there that Do not understand about milling Also Tramming the Head is most important aspects of making Blocks square ( 1-2-3 Blocks).. Keep up the good work Mr Barton( Professor)

[@jacquesplante9287]

Thanks I'll keep that locking mechanism in mind. Its going to be really usefull in the future.

[@SolidRockMachineShopInc]

You are welcome.

[@kimber1958]

Excellent demonstration explained it very clearly very helpful for the novelist like me and I’m sure it’s helpful to the professionals, great job!!’

[@SolidRockMachineShopInc]

Glad it was helpful!

[@beetlejuice4693]

I am a tool and die maker and his videos are extremely helpful

[@raymondlee2680]

Steve Barton ( Professor)

[@ashleythomas3480]

What laser engraver do you use and will you show it that’s for Videos there fantastic

[@SolidRockMachineShopInc]

I have this done on the outside. I can't remember the name. I will try to remember to check next time i have something etched.

[@sblack48]

What’s the trick to making those conical insert pieces? I presume they are hardened? Very cool.

[@SolidRockMachineShopInc]

No, they were soft prototypes. The ones for the Sine Plate will be hardened. I used 3/4" drill rod and drilled and chamfered the end. Then I used a cut off wheel in the surface grinder to spit down the middle to the required depth. Then used the cut off wheel to cut the part off a little longer than needed and finished cutting to length on the mill. I plan on doing a KZbin video on it when we start the Sine Plate build.

[@sblack48]

@@SolidRockMachineShopInc look fwd to seeing it. Thx!

[@danneumann3274]

dc53 is an awsome steel. I use it daily for coin dies. shock resistant like S-7 hardness of D2 with a tensil strength of amost 400 thousand psi, S7 is about 300 psi. as a comparison, 4140 is less than 100.000 psi. Dc53 is one of the best steels for tool and die out there. Never heard of using a diamond wheel on tool steel. I might of just learned something here

[@SolidRockMachineShopInc]

Hello Dan, I love DC53 too! Don't use diamond in steel it will ruin the wheel. I am using CBN which works on steel but not carbide.

[@sto2779]

22:50 - What about buying a used Brown & Sharpe Micromaster surface grinder? Would that be most likely out of spec? Thanks. 27:25 - Jeeze talking 25-50 millionths of inch here.

[@SolidRockMachineShopInc]

Buying a used surface grinders is a throw of the dice. You may be getting a great deal or you may be buying an expense machine that will let you down. If possible bring a a few pieces of steel the same thickness and place them at different spots on the mag chuck and grind them to the same thickness. Check to see if they measure the same and without taper. If it passes that test you may have a good one.

[@sto2779]

@@SolidRockMachineShopInc Thank you sir for the reply. By far the most helpful information I have learned. I will take this advice. Also do you have any recommendations where would be a good place to find a low priced used reliable surface grinder?

[@SolidRockMachineShopInc]

That I do not know. You can start by doing a web search in your area and keep an eye out for auctions listings. @@sto2779

[@raymondlee2680]

Angle Block ( Drilling holes)

[@klw141]

Steve, Great projects as usual, Thx! Question though, you need a precision 45deg angle block to make a precision 45 deg angle block, how do you create the original precision 45deg block? What is your reference?

[@SolidRockMachineShopInc]

Thanks. I will try to cover that in the next video on the finish grind. It will be hard to explain here. A high precision Vblock or Sine Plate is the key to checking the 45 degree angle. With the Vblock after finish grind you run the indicator over the part rotate the part 180 degrees in the Vblock and indicate. If the readings are zero both ways that means your Vblock angles and Big 45 are both accurate. If you get different readings then that means one or both (Vblock, Big 45) are out. The amount of indicator readings lets you know how much to adjust. Steve

[@CatNolara]

You could set up a mounting plate at roughly 45 degrees, grind a V into a test block with flat, square and parallel sides, then flip the block and finish the V. Now you could test the V for squareness and adjust the mounting plate accordingly. Just my idea of how I'd do it, his way of doing it is propably better.

[@sblack48]

You said you are taking of 4 1/2 thousandths. Did you mean 4 1/2 10ths?

[@SolidRockMachineShopInc]

I was taking a total of about .005" of the surface. I plunge ground about .0045" and left .0005 for clean up conventional grinding.

[@raymondlee2680]

I mean the Ol 45 block

[@afnDavid]

Huge quantities of talk about _what_ is happening but zero talk about _why_ it is happening (being done).

[@SolidRockMachineShopInc]

There was plenty of why in this video. Why use CBN for roughing, why plunge grind with CBN. Why start on the proper side of the part when plunging. Why use green silicon carbide wheels for finishing and very much more. Did you watch the entire video or just the first few minutes?