Why Your Machine Isn't as Accurate as You Think | How We Do It Ep.5

[@HansKeisler]

So many companies glaze/overlook on this. Larry knows his stuff and has helped my shop out with laser calibration.

[@kreglamirand2637]

I love that I can come on KZbin and find a video showing a process I never knew existed. I have some manual machines but no cnc yet. Obviously they need some sort of calibration but after watching thousands of machining videos, this is the first time ever seeing a ballbar. Who knew...

[@SBSOLOCO]

I love KZbin for that. You can always find something to learn!

[@rthinchey]

Larry! What a legend. Thanks for putting together this high quality video Shawn.

[@SBSOLOCO]

My pleasure!

[@nataliekysar9675]

Very cool to get an inside look into the whole process! Way to go Larry! The best in the business for calibrating!

[@SBSOLOCO]

He sure knows his stuff!

[@scudzuki]

Forget destroying an edgefinder with PRM, ever turn on the spindle with an indicol and test indicator clamped on? Lost my first Mitu ind that way. Ouch.

[@MikeYurbasovich]

I did that with an Interapid on a Bridgeport

[@SBSOLOCO]

I almost got killed by an edge finder releasing at 7krpm. It shot across the shop past my head and went right thru the 5/8 Sheetrock firewall. Scary moment!

[@randydewees7338]

Yes yes. Had an obnoxious friend over wanting free work. I got distracted by his inane commentary, flung my indicator off the spindle nose. Insufferable prick though he was, he knew he was part of that mishap.

[@WICKEDMS]

Now I need a Larry in So cal OC that can offer this service

[@csark3012]

Larry said he will travel. You could always reach out to him... the worst he could say was no thank you. 😆

[@billgilbride7972]

What a cool guy to do that. No doubt this is where the playing field is at, precision! Even for a hobbyist, it's nice to know what technologies are being deployed in the name of accuracy!

[@SBSOLOCO]

It’s definitely a handy tool to at least see what that machines capabilities are. Like how accurate can it be and schedule jobs on it according to tolerances needed.

[@TBJK07Jeep]

This is something we want to do on our Haas. We replaced the Y ball screw last year & bearings in the guides. We were having a weird noise as well.

[@SBSOLOCO]

You should. But more so a laser leveling would greatly improve accuracy on a new ball screw!

[@anthonyrivers8395]

That is actually quite cool❤ makes me want to be a meteorologis

[@aaronward3882]

Great demonstration on the process of measuring machine movements under no load

[@robert_g_fbg]

Would like to see your tear down & replacement of the bearings.

[@SBSOLOCO]

I need to find a video on how to do it and then I will make a video on how to do it. Haha

[@saltracer1]

I have a ball bar (with the wires) and using it mostly to level mills and just as kind of preventive maintenance (keeping track from year to year). I usually use the .0005 scale just to be consistent, but at .0001 almost anything would not look good. Like that Y-Z semi circle, never tried that! Nice video.

[@SBSOLOCO]

Just don’t hit that spindle on button! 😬

[@TrPrecisionMachining]

good video..thanks for your time

[@SBSOLOCO]

🤜🤛

[@ipadize]

7:16 offtopic but a service tech from Hermle once crashed our blum laser 💀

[@SBSOLOCO]

Bummer. Lol

[@jasonruch3529]

I litterally cant believe its THAT GOOD. our mazaks are only within .0006"!!!!!!😢

[@rolandjollivet38]

Thing is, these tests are done with zero loading. Relatively useless information. I'm sure any Mazak will outshine that Haas in precision on a heavier cut.

[@MikeYurbasovich]

​@@rolandjollivet38Absolutely correct. Comparing a 2000lb machine to one that's 12000 or 60000 is night and day. Has machines are light and cheap.

[@nathanhays1746]

It would be great if the machine would keep track of where the table has been, particularly under machining load. Then you could distribute your jobs to even it out.

[@BuildItAnyway]

i wish this technology was more accessible. The technology itself is quite old. LVDT transducer with two round balls at the end.

[@SBSOLOCO]

It’s definitely been around a while. Don’t see it used much in the real world.

[@abhiwins123]

​@@SBSOLOCO thats because lasers are faster and more accurate than QC bars

[@kigara3906]

@@abhiwins123 And gives you far less information. BallBar and laser arent equal.

[@twofortytwo]

Bluetooth sure made it easier. Nothing worse than the old cable units getting tangled up and having to start over.

[@SBSOLOCO]

I would be so worried I would damage my ballbar!

[@tomte47]

"10 meters per second or whatever" Got to love Americans :), not even the guy who does measurements for a living can convert to metric units. FYI 10 meters per second would be 23622 ipm, some high speed machining indeed.

[@SBSOLOCO]

Haha, yea we are not machining that fast! I’m awful with the metric system. I always have to convert. Although my dad only works in Metric and doesn’t like imperial. :)

[@MikeYurbasovich]

We are better at this than Europe by default.

[@randydewees7338]

I'm sure he meant 10mm/sec.

[@Biggie_Johns_Son-v3i]

its a haas, of course the bearings go out

[@thenijni3018]

Womp womp

[@SBSOLOCO]

22 years of use seems fair enough to me. 😬